---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Wed 10/29/03: 58 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:27 AM - Re: M3X Wing mods? (Jim Clayton) 2. 12:36 AM - Re: M3X Wing mods? (Jim Clayton) 3. 04:40 AM - jitters (Paul Petty) 4. 05:24 AM - Re: Tail Surface VG Effects (Richard Pike) 5. 06:06 AM - 1/2 VW (Dwight.Kottke@hti.htch.com) 6. 06:28 AM - Re: Kolb spins (John Hauck) 7. 06:33 AM - Re: M3X Wing mods? (John Hauck) 8. 06:51 AM - Bahamas (ghaley@wt.net) 9. 06:54 AM - Re: 1/2 VW (Richard & Martha Neilsen) 10. 06:55 AM - Re: 1/2 VW (Bob Bean) 11. 07:10 AM - Mark II vs Mark III (Kelvin Kurkowski) 12. 07:15 AM - Re: M3X Wing mods? (Richard & Martha Neilsen) 13. 07:21 AM - Re: jitters (Larry Bourne) 14. 07:45 AM - Ultra Star reduction drive (JACKIE AND DALE SELLERS) 15. 07:51 AM - Re: Kolb spins (Jack & Louise Hart) 16. 08:05 AM - Re: M3X Wing mods? () 17. 08:26 AM - Re: Mark II vs Mark III () 18. 08:34 AM - Re: M3X Wing mods? () 19. 08:36 AM - alternate engines (ron wehba) 20. 08:37 AM - Re: Mark II vs Mark III (Kirk Smith) 21. 08:42 AM - Re: 1/2 VW (Kirk Smith) 22. 08:58 AM - Re: Bahamas (CaptainRon) 23. 09:23 AM - Re: 1/2 VW (Richard & Martha Neilsen) 24. 09:31 AM - Re: Ultra Star reduction drive (ron wehba) 25. 09:35 AM - alerions (ron wehba) 26. 09:46 AM - All NEW Kolb-List Chat - EXTREME Beta! (Matt Dralle) 27. 09:57 AM - M3X mods (Erich_Weaver@URSCorp.com) 28. 10:06 AM - Re: All NEW Kolb-List Chat - EXTREME Beta! (ul15rhb@juno.com) 29. 10:07 AM - jury struts (Paul Petty) 30. 10:38 AM - Re: M3X mods (Bob Bean) 31. 11:01 AM - Not posting every previous message (johnjung@compusenior.com) 32. 12:33 PM - Re: M3X mods (Don Gherardini) 33. 12:46 PM - Re: jury struts (Kirk Smith) 34. 02:21 PM - Re: 1/2 VW (GeoR38@aol.com) 35. 03:49 PM - Re: jury struts (John Hauck) 36. 04:01 PM - Re: M3X mods (John Hauck) 37. 04:18 PM - First Solo (Paul Petty) 38. 04:35 PM - Re: M3X mods (CaptainRon) 39. 04:42 PM - Re: destinations/Bahamas (Duncan McBride) 40. 05:05 PM - Re: 1/2 VW (Larry Cottrell) 41. 05:16 PM - Re: First Solo (Edward Chmielewski) 42. 05:18 PM - Re: M3X mods (John Hauck) 43. 05:21 PM - Re: First Solo (John Hauck) 44. 05:30 PM - Re: Kolb spins (John Clayton) 45. 05:45 PM - Re: 1/2 VW (bryan green) 46. 05:47 PM - Re: 1/2 VW (Larry Bourne) 47. 06:08 PM - Re: First Solo (bryan green) 48. 06:10 PM - Re: First Solo (beauford) 49. 06:38 PM - Re: jury struts (Bob Noyer) 50. 07:33 PM - Re: 1/2 VW (Richard Swiderski) 51. 08:22 PM - Re: Ultra Star reduction drive (FIXERJONES@aol.com) 52. 08:26 PM - Re: Re: New Mark III Instrument Pod (CRAIG M NELSON) 53. 09:59 PM - Re: First Solo (Don Gherardini) 54. 10:07 PM - Re: Kolb spins (Don Gherardini) 55. 10:11 PM - Re: 1/2 VW (Larry Bourne) 56. 10:50 PM - Re: New Mark III Instrument Pod (Jim Clayton) 57. 10:54 PM - Re: 1/2 VW (WillUribe@aol.com) 58. 11:03 PM - Re: Jury struts (Jim Clayton) ________________________________ Message 1 _____________________________________ Time: 12:27:17 AM PST US From: Jim Clayton Subject: RE: Kolb-List: M3X Wing mods? --> Kolb-List message posted by: Jim Clayton John/Don/Everyone, Thanks for the discussion and explanation of how you got there. I take full responsibility for the final design and configuration of my plane, but having you folks share your reasoning for the mods you did gives me valuable insights. I try to take full advantage of every lesson others had to learn the hard way ;-) Has anyone tried a jury strut with clevis pins or some other quick disconnect fitting to allow wing folding? Don, great website shots. I had focused so much on the tools and techniques pages, I missed these. Any of you guys have other photos of this stuff? Do not archive Jim Clayton California Mark-3X, Building ________________________________ Message 2 _____________________________________ Time: 12:36:00 AM PST US From: Jim Clayton Subject: Re: Kolb-List: M3X Wing mods? --> Kolb-List message posted by: Jim Clayton --> Kolb-List message posted by: CaptainRon Good report. I guess I'll revisit the wings when I am done with the cage and before engine mounting. I did'nt get the impression that my M3X wing was lacking for strength. Hi Ron/All, I'm not trying to give the impression the wings need attention; only because I am doing non-standard weights am I looking at this stuff. But I agree with you, It's always worth another look. Do not archive Jim Clayton California Mark-3X, Building ________________________________ Message 3 _____________________________________ Time: 04:40:43 AM PST US From: "Paul Petty" Subject: Kolb-List: jitters --> Kolb-List message posted by: "Paul Petty" Kolbers, It's a beautiful sunny clear and cool day here in south Mississippi. I'm to be at the airport @ 14:00 for my first solo flight.....eeeeeeek Say a prayer for me guys k? pp do not archive ________________________________ Message 4 _____________________________________ Time: 05:24:29 AM PST US From: Richard Pike Subject: Re: Kolb-List: Tail Surface VG Effects --> Kolb-List message posted by: Richard Pike Appears I won't get much done, winds today gusting to 20 - about the only thing I could learn on a day like that is that it's better left in the hangar.... At 12:18 AM 10/29/03 -0500, you wrote: >--> Kolb-List message posted by: "beauford" > >Brother Pike... >Tarnation....! Now you've gone and done it....! This had all the >makin's of a weekend-long scientific project...... sigh.... >B. >Do Not Archive >----- Original Message ----- > > > > --> Kolb-List message posted by: Richard Pike > > > > > > what if we put a stronger spring on the left > > one? Or is that too simple...? > >> > > > >> > > > > > > ________________________________ Message 5 _____________________________________ Time: 06:06:24 AM PST US Subject: Kolb-List: 1/2 VW From: Dwight.Kottke@hti.htch.com 10/29/2003 08:06:20 AM, Serialize complete at 10/29/2003 08:06:20 AM, Itemize by SMTP Server on HUDOMGW1/HTI(Release 5.0.12 |February 13, 2003) at 10/29/2003 08:06:07 AM, Serialize by Router on HUDOMGW1/HTI(Release 5.0.12 |February 13, 2003) at 10/29/2003 08:06:10 AM, Serialize complete at 10/29/2003 08:06:10 AM --> Kolb-List message posted by: Dwight.Kottke@hti.htch.com Has anyone put a 1/2 VW engine on a Firestar? Pro's Con's Advice The Flying Farmer Firestar 377 157 hours do not archive ________________________________ Message 6 _____________________________________ Time: 06:28:22 AM PST US From: John Hauck Subject: Re: Kolb-List: Kolb spins --> Kolb-List message posted by: John Hauck > I always think about that accident when I wonder how the Kolb family of > aft-engined airplanes would handle spins... Haven't heard the subject come > up much on the list... > Beauford Beauford/All: I have spun all three of my Kolbs: Ultrastar Original Firestar MKIII All three spin and recover instantaneously. The Ultrastar spins like a Cessna 152 without all the altitude loss. The Firestar would spin 1/2 turn with stick back to the stop, full right or left rudder, engine idling, and return to flying with controls locked in that position. An engine off spin and the FS spins up like a top with instant recovery by relaxing the controls. I'm sorry I can not remember altitude loss for any of the three models for number of spins. I'll have to do some spins in Miss P'fer to refresh my memory, but altitude loss with her or the other two Kolbs was not much. However, would not want to do one near the ground. No bad habits with either of the three. Never got into or near an inadvertent spin with any of them. Ailerons are still in control during stalls/mushes on all three. Instant recovery by relaxing controls on all three. The Firestar would recover from any unusual attitude by relaxing controls. That includes inverted, tailslides, falling out of unsuccessful aileron rolls, screwed up hammer heads, stalling out of loops and wing overs. No vortex generators on any of them. I may get around to experimenting with gap seals on rudder and elevator, but don't have time right now to mess with that. With well over 3,500 hours and 19+ years flying Kolbs, I have never found any of them to have bad habits of any kind. If they did, I probably wouldn't be flying them today. They will stall level, near the ground, giving the pilot the impression he is flying, but in a full stall. Nearly impossible to push the nose over to regain flight before impact in this configuration. Got into this situation once with the MKIII and gravity won. Thank God I was strapped in to a crashworthy airplane or I may have suffered more than black and blue bruises on bottom of my thighs and loss of my glasses on impact. I don't think I will get involved in the experimentation process of vortex generators. I am pleased with the performance band of my MKIII. The airplane responds to my commands and makes me happy the way it is configured. From a lot of the posts I read concerning vortex generator experimentation, the test pilots don't have enough time in Kolbs to know how to fly them in the standard configuration, much less experiment and change a well proven design that has been flying for many years. Take care, john h PS: Don't spin without a parachute. And don't be attempt to be an aerobatic pilot in an airplane that is not designed for aerobatics. Might kill ya!!! ________________________________ Message 7 _____________________________________ Time: 06:33:54 AM PST US From: John Hauck Subject: Re: Kolb-List: M3X Wing mods? --> Kolb-List message posted by: John Hauck > Has anyone tried a jury strut with clevis pins or some > other quick disconnect fitting to allow wing folding? > Jim Clayton Jim/All: Will have to take a look at the MK III plans I have to see if there was provision for quick release of jury strut. I didn't like the idea of drill a hole in the lift strut to attach hardware for jury strut, as called for in the plans. I used 4130 strap shaped around the lift strut with the ends bent up to form to tangs for 3/16 bolt to attach strut. Takes but a second to undo the little nut and bolt. On the main spar gusset, used some SS fuel tank strap to configure the upper attach point by riveting the tang on the gusset. Works for me, john h ________________________________ Message 8 _____________________________________ Time: 06:51:16 AM PST US From: ghaley@wt.net Subject: Kolb-List: Bahamas --> Kolb-List message posted by: ghaley@wt.net Bob/others, I've been planning to do the Bahamas for about three years now and will do it within the next few years if all goes well. I would really love to do it with others. My plan is to visit all the airports listed in the islands camping most of the way. My wife plans to fly down and spend a few days along the way. I have flown to the Bahamas before in a 172 and did not find it a problem at all. At first I was a little nervous but after just a few minutes of open water little islands began to appear along with a steady stream of boats. All nervousness went away. From what I now understand the Bahamas Government is permitting Experimentals into their airspace and airports. Count me in on your planning. Gary ________________________________ Message 9 _____________________________________ Time: 06:54:33 AM PST US From: "Richard & Martha Neilsen" Subject: Re: Kolb-List: 1/2 VW --> Kolb-List message posted by: "Richard & Martha Neilsen" Good question. If you try it be sure to put a reduction drive on it. Rick Neilsen Redrive VW powered MKIIIc ----- Original Message ----- From: Subject: Kolb-List: 1/2 VW > --> Kolb-List message posted by: Dwight.Kottke@hti.htch.com > > Has anyone put a 1/2 VW engine on a Firestar? > Pro's > Con's > Advice ________________________________ Message 10 ____________________________________ Time: 06:55:16 AM PST US From: Bob Bean Subject: Re: Kolb-List: 1/2 VW --> Kolb-List message posted by: Bob Bean It would be interesting to see a list of the variety of powerplants that have propelled Kolbs through the years, including the chainsaw engines. You would have to be innovative to get much power out of the two-banger vw. I still think that for the heavier machines, a direct drive vw could be successful. -the first requirement would be the longest stroke available in conjuction with the smallest (83m) bore. You want the highest piston speed per revolution and a low ~7:1 compression ratio to approximate a "real" airplane engine. The high piston velocity fakes the engine into thinking it's turning a higher rpm. Check out the piston speed on a PW 985 or 7 cyl Jacobs vs crank rpm. -BB do not archive Dwight.Kottke@hti.htch.com wrote: >--> Kolb-List message posted by: Dwight.Kottke@hti.htch.com > >Has anyone put a 1/2 VW engine on a Firestar? >Pro's >Con's >Advice > >The Flying Farmer >Firestar >377 >157 hours > > >do not archive > > > > ________________________________ Message 11 ____________________________________ Time: 07:10:50 AM PST US From: "Kelvin Kurkowski" Subject: Kolb-List: Mark II vs Mark III --> Kolb-List message posted by: "Kelvin Kurkowski" Long time Kolbers: Anyone out there with "on board arhives" as to what changes (structural and specifications) were made when the MarkII was updated to the Mark III. I found very little in the arhives except the gross wt increase. John Williamson... your Alaska trip map route, goes right overhead, if it comes to pass, drop in here a minute, or overnight. Kelvin Kurkowski Grant NE still lurking and learning.( getting closer to the big step) ________________________________ Message 12 ____________________________________ Time: 07:15:39 AM PST US From: "Richard & Martha Neilsen" Subject: Re: Kolb-List: M3X Wing mods? --> Kolb-List message posted by: "Richard & Martha Neilsen" Jim My MKIIIc has jury struts with clevis pins. There is one clevis pin on the wing attach end. The other end is permanently attached to the main strut but folds flat with the main strut when disconnected for wing fold. My MKIIIc was one of the last few that had stock jury struts before they changed to full length tube supports in the main struts that eliminated the need for the jury struts. The jury struts add drag and only help with negative G limits. Ok and also when a wheel breaks off. Rick Neilsen Redrive VW Powered MKIIIc ----- Original Message ----- From: "Jim Clayton" Subject: RE: Kolb-List: M3X Wing mods? > --> Kolb-List message posted by: Jim Clayton > > John/Don/Everyone, > > Thanks for the discussion and explanation of how you > got there. I take full responsibility for the final > design and configuration of my plane, but having you > folks share your reasoning for the mods you did gives > me valuable insights. I try to take full advantage of > every lesson others had to learn the hard way ;-) > > Has anyone tried a jury strut with clevis pins or some > other quick disconnect fitting to allow wing folding? ________________________________ Message 13 ____________________________________ Time: 07:21:47 AM PST US From: "Larry Bourne" Subject: Re: Kolb-List: jitters --> Kolb-List message posted by: "Larry Bourne" It's a day you'll never forget, Paul. Good Luck, and Have Fun. Lar. Do not Archive. Larry Bourne Palm Springs, CA Kolb Mk III - Vamoose N78LB www.gogittum.com ----- Original Message ----- From: "Paul Petty" Subject: Kolb-List: jitters > --> Kolb-List message posted by: "Paul Petty" > > Kolbers, > It's a beautiful sunny clear and cool day here in south Mississippi. I'm to be at the airport @ 14:00 for my first solo flight.....eeeeeeek > > Say a prayer for me guys k? > > pp > > do not archive > > ________________________________ Message 14 ____________________________________ Time: 07:45:42 AM PST US From: "JACKIE AND DALE SELLERS" Subject: Kolb-List: Ultra Star reduction drive --> Kolb-List message posted by: "JACKIE AND DALE SELLERS" I have an Ultra Star that I have been rebuilding for the last year and a half. I have flown it and it flies great. It has the Cuyuna and has a reduction drive with four v-belts. The problem is, there is a big hex nut on the prop shaft bearing housing that allows you to tighten and/or replace the belts. I suspect the engine and reduction drive came off a Quicksilver but I'm not sure. The nut requires a 1 1/2" open end wrench to loosen and the wrench can not be made of material more than 3/16" thick which is how wide the slot is where the nut is located. If anyone is familiar with this type of reduction drive and might know where I can get one, please let me know. The Cuyuna purrs like a kitten. I have had no trouble with it. Both CHT & EGT are well in the green. The power of the engine and the rate of climb are outstanding. Much better than I expected. I am a private pilot, very experienced in building and flying experimentals but this is my first ultralight. I had no trouble on the first flight. It was alot of fun. Thanks for your help. Dale Sellers Jackie & Dale ________________________________ Message 15 ____________________________________ Time: 07:51:17 AM PST US From: Jack & Louise Hart Subject: Re: Kolb-List: Kolb spins --> Kolb-List message posted by: Jack & Louise Hart At 08:25 AM 10/29/03 -0600, you wrote: >--> Kolb-List message posted by: John Hauck +++++++++++++++++++++++++++++++ >With well over 3,500 hours and 19+ years flying Kolbs, I >have never found any of them to have bad habits of any kind. > If they did, I probably wouldn't be flying them today. > ++++++++++++++++++++++++++++ > >They will stall level, near the ground, giving the pilot the >impression he is flying, but in a full stall. Nearly >impossible to push the nose over to regain flight before >impact in this configuration. And this is not a bad habit or is it pilot error?? > From a lot of the posts I read concerning vortex generator >experimentation, the test pilots don't have enough time in >Kolbs to know how to fly them in the standard configuration, >much less experiment and change a well proven design that >has been flying for many years. > John, I know you are a Kolb purist, but this is ridiculous. If the design is so good, why is it that you have been the one who has made the most modifications to Kolb designs. Adding here and there and beefing here and there. You do this as a personal choice and it is a reflection in the way you want to fly, and yet you say that others should not do the same. Not all people are going to pull the leading edges off both wings, and then to say it would not have happened if there was a small change made in the rib design. Some might say that you should not have pulled it up so hard or slowed up a little to pass through rough air etc. The original FireFly was a very un-fun plane to fly on short cross countries during the middle of the day. When I quizzed the old Kolb Company about the ailerons, the answer was that I should not try to fly the FireFly in the middle of the day because it was an ultra light. With changes to the aileron chord and linkages it has come from an arm breaker to a two fingers on the stick fly it any time aircraft. VG's allow one to land it in a 20 mphi gusty cross winds, achieve a better climb rate, and greater stability in just about any configuration. If you try VG's on your plane, you may find you like them just like the rest of us low time pilots and non-pilots. Don't knock them until you try them. Have a good day and fly safer with VG's. Jack B. Hart FF004 Jackson, MO Jack & Louise Hart jbhart@ldd.net ________________________________ Message 16 ____________________________________ Time: 08:05:16 AM PST US From: Subject: Re: Kolb-List: M3X Wing mods? --> Kolb-List message posted by: > John/Don/Everyone, > > Has anyone tried a jury strut with clevis pins or some > other quick disconnect fitting to allow wing folding? > Jim Clayton > California > Mark-3X, Building Jim, Where my Mk-3 jury struts connect to the steel fitting on the wings I use 3/16 bolts with drilled shanks and castle nuts with safety rings through em. This way on tear down you just pull the ring, spin off the castle nut and fold the jury struts down along the wing struts. You can even put a piece of 1/2" pipe insulation over the jury struts to keep em from scratching the struts. Sincerely, Denny Rowe ________________________________ Message 17 ____________________________________ Time: 08:26:47 AM PST US From: Subject: Re: Kolb-List: Mark II vs Mark III --> Kolb-List message posted by: > > Long time Kolbers: > Anyone out there with "on board arhives" as to what changes (structural and specifications) were made when the MarkII was updated to the Mark III. I found very little in the arhives except the gross wt increase. The biggest differance is the wing spars and tail tube went from 5" to 6 " tubing with a little thicker wall. The fuselage cage sides were lowered on the Mk-3 and also widened a bit. The Mk-2s max recommended engine size was a dual carb 503, while the Mk-3 can handle 912 engines. Some folks who put 582s on Mk-2s wound up with fatigue cracks in the steel fuselage cage. The Mk-2 is a good aircraft, but the Mk-3 is a stronger airframe, it really is a totally new plane from a Mk-2, probably also has a few more ribs in the wings. Sincerely, Dennis Rowe ________________________________ Message 18 ____________________________________ Time: 08:34:21 AM PST US From: Subject: Re: Kolb-List: M3X Wing mods? --> Kolb-List message posted by: > > Jim > . My MKIII was one of the last few that had stock jury struts before they changed to > full length tube supports in the main struts that eliminated the need for > the jury struts. The jury struts add drag and only help with negative G > limits. Ok and also when a wheel breaks off. > > Rick Neilsen > Redrive VW Powered MKIIIc > Wow, I had no idea that Kolb had eliminated the Mk-3 jury struts, I was thinking when I built mine that it would be nice to have a full length tube inside my struts for extra security but decided the stock streamlined tubes were plenty strong. What about Miss P fer John, Does she have the internal tubes and jury struts or just the jury struts? Sincerely, Dennis Rowe, Mk-3 N616DR, PA ________________________________ Message 19 ____________________________________ Time: 08:36:23 AM PST US From: "ron wehba" Subject: Kolb-List: alternate engines --> Kolb-List message posted by: "ron wehba" here is what i have on my minimax,, someone on here had a subaroo on a ultrastar,, my engine is a AO84. 40 H.P. 4 cyl. 4 stroke military genset engine. weight about 130 with prop hub.I'll put a pic up in a couple of minutes. ________________________________ Message 20 ____________________________________ Time: 08:37:11 AM PST US From: "Kirk Smith" Subject: Re: Kolb-List: Mark II vs Mark III --> Kolb-List message posted by: "Kirk Smith" One big difference is the Mark 3 has 6 inch wing spars and fuselage tube. The Mark 2 had 5 inchers. Kirk ----- Original Message ----- From: "Kelvin Kurkowski" Subject: Kolb-List: Mark II vs Mark III > Long time Kolbers: > Anyone out there with "on board arhives" as to what changes (structural and specifications) were made when the MarkII was updated to the Mark III. I found very little in the arhives except the gross wt increase. ________________________________ Message 21 ____________________________________ Time: 08:42:16 AM PST US From: "Kirk Smith" Subject: Re: Kolb-List: 1/2 VW --> Kolb-List message posted by: "Kirk Smith" I can tell you the difference between a 1/2 VW and a 447 Rotax on a Minimax. The Rotax flat humiliates the VW. Wouldn't have a half VW. Take off distance with 447 100 feet on 80 degree day. Take off with VW same day 600 feet. Kirk ________________________________ Message 22 ____________________________________ Time: 08:58:10 AM PST US From: CaptainRon Subject: Re: Kolb-List: Bahamas --> Kolb-List message posted by: CaptainRon Well I'll post here when I am getting ready to do that. And if you wanna do it we can coordinate the departure out of Florida. I enjoy'd the Bahamas a lot when I was there a year ago. It would be in my estimation a superb time. TNK is working on plug n' play amphibian floats. If they (Ray) are successful, and are reasonably priced that may be an even greater fun,, if that's possible. ========================== --- ghaley@wt.net wrote: > --> Kolb-List message posted by: ghaley@wt.net > > Bob/others, > I've been planning to do the Bahamas for about three > years > now and will do it within the next few years if all > goes > well. I would really love to do it with others. My > plan is > to visit all the airports listed in the islands > camping most > of the way. My wife plans to fly down and spend a > few days > along the way. > I have flown to the Bahamas before in a 172 and did > not find > it a problem at all. At first I was a little > nervous but > after just a few minutes of open water little > islands began > to appear along with a steady stream of boats. All > nervousness went away. From what I now understand > the > Bahamas Government is permitting Experimentals into > their > airspace and airports. > Count me in on your planning. > Gary > > > > Contributions > any other > Forums. > > > http://www.matronics.com/subscription > http://www.matronics.com/FAQ/Kolb-List.htm > http://www.matronics.com/archives > http://www.matronics.com/photoshare > http://www.matronics.com/emaillists > > > > > ===== Ron Building M3X Southern Arizona __________________________________ Exclusive Video Premiere - Britney Spears http://launch.yahoo.com/promos/britneyspears/ ________________________________ Message 23 ____________________________________ Time: 09:23:12 AM PST US From: "Richard & Martha Neilsen" Subject: Re: Kolb-List: 1/2 VW --> Kolb-List message posted by: "Richard & Martha Neilsen" Bob I wish you wouldn't do that. I have been there with a direct drive VW and its a real disappointment. The props that get the most thrust are long ones that turn slow. My reduction drive VW engine turns its 72 inch prop at 1988 RPM at cruise. For a good climb I turn 3600 turning the prop 2236RPMs. To turn these engine RPMs direct drive with everything being equal you would need a 3500cc engine. OK you could compromise the prop efficiency and turn slightly more RPMs but you would still need a really large VW engine to get the same performance. At what point is a engine that was designed for 1200cc too large to be reliable. Some say my 2180cc engine turning 3200RPM is too much. Another issue is how much power can you make with a VW engine and keep it cool. My direct drive VW had to work so hard that my oil temps were near the upper limit with a large oil cooler and a rich fuel mixture. With the same engine and the reduction drive I can't seem to keep it warm. I run a lean fuel mixture and have removed the scoops from the oil cooler and I'm also cruising 10 MPH faster. There is a guy at New Kolb (the red head) that is building a direct drive VW for a MKIII with one of the super long stroke cranks that uses the Chevy rod journal with a 90mm stroke and 94mm pistons for 2500cc. I tried to talk to the guy but he just wouldn't listen. The VW is a great engine I'm concerned that this attempt will sour the people at Kolb on VWs. I have watched a lot of VW and 1/2 VW powered airplanes fly over the years and every one of them with direct drive has struggled to get airborne. Watch me or Jene Smith (maybe even Larry Bourne some year) take off with our reduction drive VWs and you will understand. Sorry for the ranting. Rick Neilsen Redrive VW powered MKIIIc ----- Original Message ----- From: "Bob Bean" Subject: Re: Kolb-List: 1/2 VW > --> Kolb-List message posted by: Bob Bean > > It would be interesting to see a list of the variety of powerplants that > have > propelled Kolbs through the years, including the chainsaw engines. > You would have to be innovative to get much power out of the two-banger > vw. I still think that for the heavier machines, a direct drive vw could be > successful. ________________________________ Message 24 ____________________________________ Time: 09:31:57 AM PST US From: "ron wehba" Subject: Re: Kolb-List: Ultra Star reduction drive --> Kolb-List message posted by: "ron wehba" sounds just like mine,where you at?, I am in west tx. ----- Original Message ----- From: "JACKIE AND DALE SELLERS" Subject: Kolb-List: Ultra Star reduction drive > --> Kolb-List message posted by: "JACKIE AND DALE SELLERS" > > I have an Ultra Star that I have been rebuilding for the last year and a half. I have flown it and it flies great. It has the Cuyuna and has a reduction drive with four v-belts. The problem is, there is a big hex nut on the prop shaft bearing housing that allows you to tighten and/or replace the belts. I suspect the engine and reduction drive came off a Quicksilver but I'm not sure. The nut requires a 1 1/2" open end wrench to loosen and the wrench can not be made of material more than 3/16" thick which is how wide the slot is where the nut is located. > If anyone is familiar with this type of reduction drive and might know where I can get one, please let me know. > > The Cuyuna purrs like a kitten. I have had no trouble with it. Both CHT & EGT are well in the green. The power of the engine and the rate of climb are outstanding. Much better than I expected. I am a private pilot, very experienced in building and flying experimentals but this is my first ultralight. I had no trouble on the first flight. It was alot of fun. > > Thanks for your help. > > Dale Sellers > Jackie & Dale > > ________________________________ Message 25 ____________________________________ Time: 09:35:32 AM PST US From: "ron wehba" Subject: Kolb-List: alerions --> Kolb-List message posted by: "ron wehba" I have been reading about changing the linkage on other kolbs, what about a ultrastar, mine is VERY heavy?stiff, ideas guys. ________________________________ Message 26 ____________________________________ Time: 09:46:21 AM PST US From: Matt Dralle Subject: Kolb-List: All NEW Kolb-List Chat - EXTREME Beta! --> Kolb-List message posted by: Matt Dralle Hi Kolbers, Okay, I spent some time yesterday and today looking at options for adding a nice Chat system to the Matronics systems. I found a nifty web-based solution that doesn't require any special software other than a late-model web browser. It seems to work well and I've set it up for testing on a few of the Matronics Lists. You'll see a button labeled "Rooms" where I have added five of the current Lists. If people like the system, I'll add the rest of the Lists, buy the chat-engine software (currently using an eval copy), pretty up the wrapper web page, and add a link to the Message trailer. The chat-client user interface is pretty self explanatory. There's a little button on the applet that looks like four arrows pointing at the four corners of the button. Pressing this will decouple the chat window from the web page container and allow you to resize the chat window to any size you want. Give it a try and let me know what you think! I'll be on and off it today depending on when I'm around. My handle is "MattDralle". To get started, click on the Link below and enter in your handle. Please use your *real name* or email address so other members will know who you are. http://www.matronics.com/chat/kolb-list Best regards!! Matt Dralle Email List Admin Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551 925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email http://www.matronics.com/ WWW | Featuring Products For Aircraft ________________________________ Message 27 ____________________________________ Time: 09:57:14 AM PST US Subject: Kolb-List: M3X mods From: Erich_Weaver@URSCorp.com 10/29/2003 12:57:01 PM --> Kolb-List message posted by: Erich_Weaver@URSCorp.com Don G. and others: A few basic questions from someone who didnt build their plane but who should know this stuff anyway: what is the D-cell? Also, I have heard John H. discuss horizontal bracing in the wing a few times, but I still cant figure exactly what he is talking about. Im probably thinking about this all wrong, but seems like the only horizontal bracing is the main spar, leading and trailing edges, and the drag strut, and I dont think these are what he means. John or somebody, please set me straight - preferably referring me to Don's wing construction pictures or other similar photos for clarity. regards, Erich Weaver ________________________________ Message 28 ____________________________________ Time: 10:06:57 AM PST US Subject: Re: Kolb-List: All NEW Kolb-List Chat - EXTREME Beta! From: ul15rhb@juno.com --> Kolb-List message posted by: ul15rhb@juno.com I just checked out the chat area that Matt has set up and we typed a couple of one-liners back and forth and confirmed that it works great! do not archive Ralph Burlingame Original Firestar 16 years flying it ________________________________ Message 29 ____________________________________ Time: 10:07:52 AM PST US From: "Paul Petty" Subject: Kolb-List: jury struts --> Kolb-List message posted by: "Paul Petty" What are jury struts? pp do not archive ________________________________ Message 30 ____________________________________ Time: 10:38:58 AM PST US From: Bob Bean Subject: Re: Kolb-List: M3X mods --> Kolb-List message posted by: Bob Bean Erich, if you were to wrap the leading edge with sheet metal from the top of the spar around to the bottom you would have a complete D cell. Mine has a half D on one wing (top only) and about 7/8 on the other. _didn't like the way the right wing was done, by someone else, and did the left a little different. -flies ok in spite of it. -BB do not archive Erich_Weaver@URSCorp.com wrote: >--> Kolb-List message posted by: Erich_Weaver@URSCorp.com > > >Don G. and others: > >A few basic questions from someone who didnt build their plane but who >should know this stuff anyway: > >what is the D-cell? > >Also, I have heard John H. discuss horizontal bracing in the wing a few >times, but I still cant figure exactly what he is talking about. Im >probably thinking about this all wrong, but seems like the only horizontal >bracing is the main spar, leading and trailing edges, and the drag strut, >and I dont think these are what he means. John or somebody, please set me >straight - preferably referring me to Don's wing construction pictures or >other similar photos for clarity. > >regards, >Erich Weaver > > > > ________________________________ Message 31 ____________________________________ Time: 11:01:17 AM PST US From: "johnjung@compusenior.com" Subject: Kolb-List: Not posting every previous message --> Kolb-List message posted by: "johnjung@compusenior.com" Group, In the interest of keeping this list as good as it has been, let's try to follow Mattes guidelines and delete all but the portion of the previous message(s) that we are responding to. Yesterday, a message was posted that contained 100% of the 7 previous messages. Including the words "do not archive" does not solve all the problem. The problem remains, because those that follow the list in Digest mode, have to scroll through all the repeated messages. John Jung ________________________________ Message 32 ____________________________________ Time: 12:33:42 PM PST US From: "Don Gherardini" Subject: Re: Kolb-List: M3X mods --> Kolb-List message posted by: "Don Gherardini" ill take a stab at it Eric the D-section..or D-cell..is the area in front of the spar...picture a cross section...and with the spar in the middle...the "D" formed by the front half When John talks about "horizontal bracing" He is referring to structure to keep the ribs "in column"....this bracing could be from rib to rib in the form of X bracing( like the bracing between floor joists in the basement). It could be flat rib lace cord from rib to rib...or even just extra 5/16th tubes that jion the ribs laterally along the span. IN a Kolb wing, the main thing that keeps the rib in column id the fabric riveted to the ribs in areas that are away from the spar and leading/trailing edge tubes. If a rib gets loose from the fabric, it could easily twist sideways and get "out of column"..and therfore collapse or fail. AS long as they are straight up an down(In column) they are very strong. Other areas of "horizontal bracing" (not referring to ribs) might be considered the drag strut..the spar (which is fine) and the leading and trailing edge tubes as you describe. On the FireFly wing..the drag strut is connected only on the ends...one end on the inner steel rib, and the other on the spar. On heavier Kolb wings..the drag strut is re-inforced with a brace mid span from the main spar to the strut, and the brace in made of steel I believe. ...I think..... Don Gherardini Sales / Engineering dept. American Honda Engines Power Equipment Company 800-626-7326. ________________________________ Message 33 ____________________________________ Time: 12:46:07 PM PST US From: "Kirk Smith" Subject: Re: Kolb-List: jury struts --> Kolb-List message posted by: "Kirk Smith" > What are jury struts? > > pp The support tubes that go between the lift struts ( Big ones that hold the wings up) and the wing spar. Located about midway on the lift strut and go up to the main wing spar. Kirk ________________________________ Message 34 ____________________________________ Time: 02:21:44 PM PST US From: GeoR38@aol.com Subject: Re: Kolb-List: 1/2 VW --> Kolb-List message posted by: GeoR38@aol.com In a message dated 10/29/03 12:25:15 PM Eastern Standard Time, NeilsenRM@comcast.net writes: > I have watched a lot of VW and 1/2 VW powered airplanes fly over the years > and every one of them with direct drive has struggled to get airborne. Watch > me or Jene Smith (maybe even Larry Bourne some year) take off with our > reduction drive VWs and you will understand. > > Sorry for the ranting. > > > Don't be sorry for anything, as far as I'm concerned you are right on!! The key here may be the phrase "direct drive" My experience is with a Direct drive 1/2 VW in an N3 pup that was a great flying plane but was really way underpowered by comparison to the 447 in my Firestar. But I flew it 100 miles for a friend of mine ..near Warren, ohio and it flew just wonderfully ....but i was sitting on the edge all the way any time i got close to landing or taking off because of the slow speed of the prop...tach said 3450 (maxed out) and it was a direct drive. I weighed about 200 at the time, and when I took off from the runway half way up the mountain at Cadiz, Ohio...I thought for sure on this 2nd leg of each 25 mile leg, that I had bought the big one as the wheels would not leave the runway as I ran out of runway at the edge of the mountain!!! The ASI said I was going 37 and that should have been enough to be airborne (as I found on my first leg), but I wasn't flying. As I came off the cement at the edge of the runway, I prepared for the nosedown and looked for a clearing to crash land on the mountainside. Much to my amazement, the plane just kept on going straight off the end of the runway and I flew the next 25 miles gradually (just barely) gaining altitude to land at Carrollton Airport. I found an old fart there who informed me that my dilemma was caused by an incline of the runway at Cadiz. Not long after that I had a heart attack and died. Naw, just teasin...but that was one of the scariest flying experiences that I have had (although flying in the dark with no lights ranks right up there), and it was enabled by marginal power provided by the 1/2 direct drive VW. Experiments with prop pitch on this baby proved that power transfer to the air was just about optimized. My buddy did get a slightly better prop on there and he weighed 40 lbs less than me but he still piled it in. Total loss, but no harm to the pilot...what a mess.... and blessing, at the same time. This beautiful plane was ultimately deep sixed by my friend,the owner, because of the same thing, not enough power....couldn't make it over the power lines following another MkIII and a Quick which got out handily. He was not hurt at all because of the similar construction of the N3 to the Kolb...chrome moly steel tubing ...welded. George Randolph Firestar drive from The Villages ________________________________ Message 35 ____________________________________ Time: 03:49:00 PM PST US From: John Hauck Subject: Re: Kolb-List: jury struts --> Kolb-List message posted by: John Hauck > What are jury struts? > > pp Paul/All: That's what the jury does when they get off duty. They struts. :-) Seriously Paul, they brace the lift strut to keep it in column during negative Gs while flying, and especially on the ground during landing and taxiing over rough fields. Take care, john h ________________________________ Message 36 ____________________________________ Time: 04:01:22 PM PST US From: John Hauck Subject: Re: Kolb-List: M3X mods --> Kolb-List message posted by: John Hauck > When John talks about "horizontal bracing" He is > referring to structure to keep the ribs "in > column".... > ...I think..... > > Don Gherardini Don/All: The failure on my Firestar wing starter between the 2d and 3d main rib, counting the outboard rib as 1st. Both wings failures began at the center false rib rivet hole. When the leading edge started to fail upward, it pulled the noses of the ribs, attached to the leading edge tube out of column laterally. When it was all over, the leading edges of both wings had failed upward and back to the main spar. I had a spoiler about 18 inches wide and the length of the wing area of the main ribs wide. Failure was caused by failing well out of the design envelope for many hours, 755 IIRC, dinging a wing occasionally in little mishaps, and insufficient lateral bracing of the leading edge tubes. If this airplane had been flown the way it was intended to be flown, it would probably still be flying. I take full responsibility for the wing failures. It was a very abrupt learning curve. Haven't pulled the wing off a Kolb in the last 13 years. Of course my flying style has changed somewhat since March 1990. Take care, john h ________________________________ Message 37 ____________________________________ Time: 04:18:09 PM PST US From: "Paul Petty" Subject: Kolb-List: First Solo --> Kolb-List message posted by: "Paul Petty" Kolbers, I SOLOED!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Wow nothing like I expected. Had to hold short for a King Air on approach then taxied out onto 13 and let her have it! just as I started my takeoff roll I realized my window was open! Yikes!!! Got it closed and made a good take off and circled to make the three requierd touch and goes. First landing was far short of pretty. I bounced then balloned, got all crossways bounced again then working the rudder like a tail dragger managed to regain control and settle on to the runway. The next two were perfect greased landings. Upon returning to the ramp my CFI asked "What tha heck was that" I said " I don't have a clue but I wont do that again!" Any way I'm all set to go practice. I will post some photo's of this great day. pp do not archive ________________________________ Message 38 ____________________________________ Time: 04:35:44 PM PST US From: CaptainRon Subject: Re: Kolb-List: M3X mods --> Kolb-List message posted by: CaptainRon the drag strut is re-enforced with a brace > mid span from the main > spar to the strut, and the brace in made of steel I > believe.>>>>> On the M3X there are two braces chrome molly for the compression strut in the wing. It is really very rigid. ===== Ron Building M3X Southern Arizona __________________________________ ________________________________ Message 39 ____________________________________ Time: 04:42:15 PM PST US From: "Duncan McBride" Subject: Re: Kolb-List: destinations/Bahamas --> Kolb-List message posted by: "Duncan McBride" Hey, there is a guy who has a neat Mark III in Orlando, Florida, with a Lotus 2000 monofloat and his own design retractable gear who has flown it to the Bahamas at least once and maybe more. I'll try to find out his name and get hold of him. He doesn't have e-mail. I've seen his plane. It has a 912, and a clever arrangement for the fuel tanks. He uses 3 of the regular 5-gallon tanks but they're arranged side-by-side and the cage is modified to allow him to slide them out so he can carry them to a source to refill them. I'm on it. ----- Original Message ----- From: "John Hauck" Subject: Re: Kolb-List: destinations/Bahamas > --> Kolb-List message posted by: John Hauck > > > > Strikes me that if one made it across to the Bahamas in a > > Rotax powered Kolb, one will automatically qualify for > > emergency status by the time one locates the beach... > > Whaddya think? > > > > beauford > > Beauford/All: > > We hope not. > > I do not know of any Kolb's that have done the flight to the > Bahamas. For that matter, don't know of but one ultralight > that did it some 17 or 18 years ago. It was a flying boat, > a single place Buccaneer powered by a Rotax 447 single carb > point ign two stroke. That was all we had at the time. The > pilot was an old UL buddy of mine, Roland Alexander. Met > Roland on my first long XC in November 1987, at the Florida > Flying Gators Airstrip. > > The Pioneer that did the Caribbean flight used inflated > condoms for flotation and a lot of luck. > > Take care, > > john h > > DO NOT ARCHIVE > > ________________________________ Message 40 ____________________________________ Time: 05:05:41 PM PST US From: "Larry Cottrell" Subject: Re: Kolb-List: 1/2 VW --> Kolb-List message posted by: "Larry Cottrell" I saw one at the Alvord a few years ago, The guy had to prop it and you had to fly it a long time in ground effect until you got enough air speed to commit aviation. Larry,Oregon ----- Original Message ----- From: Subject: Kolb-List: 1/2 VW > --> Kolb-List message posted by: Dwight.Kottke@hti.htch.com > > Has anyone put a 1/2 VW engine on a Firestar? > Pro's > Con's > Advice > > The Flying Farmer > Firestar > 377 > 157 hours > > > do not archive > > ________________________________ Message 41 ____________________________________ Time: 05:16:15 PM PST US From: "Edward Chmielewski" Subject: Re: Kolb-List: First Solo --> Kolb-List message posted by: "Edward Chmielewski" Hi Paul, Congratulations! You must be in Hog Heaven! ; ) Ed in JXN MkII/503 Do not archive. ----- Original Message ----- From: "Paul Petty" Subject: Kolb-List: First Solo > --> Kolb-List message posted by: "Paul Petty" > > Kolbers, > I SOLOED!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Wow nothing like I expected. Had to hold short for a King Air on approach then taxied out onto 13 and let her have it! ________________________________ Message 42 ____________________________________ Time: 05:18:28 PM PST US From: John Hauck Subject: Re: Kolb-List: M3X mods --> Kolb-List message posted by: John Hauck Hi All: Got to stop writing when I am tired, and start proofing. hehehe I proofed this last one so ya'll could possibly understand what I was trying to say. > The failure on my Firestar wing started between the 2d and > 3d main rib, counting the outboard rib as 1st. Both wing > failures began at the center false rib rivet hole. When the > leading edge started to fail upward, it pulled the noses of > the ribs, attached to the leading edge tube out of column > laterally. When it was all over, the leading edges of both > wings had failed upward and back to the main spar. I had a > spoiler about 18 inches wide and the length of the wing area > of the main ribs wide. > > Failure was caused by flying well out of the design > envelope for many hours, 755 hours IIRC, dinging a wing > occasionally in little mishaps, and insufficient and broken lateral > bracing of the leading edge tubes. > > If this airplane had been flown the way it was intended to > be flown, it would probably still be flying. I take full > responsibility for the wing failures. > > It was a very abrupt learning curve. Haven't pulled the > wing off a Kolb in the last 13 years. Of course my flying > style has changed somewhat since March 1990. Promise I'll try harder to proof these things. john h ________________________________ Message 43 ____________________________________ Time: 05:21:28 PM PST US From: John Hauck Subject: Re: Kolb-List: First Solo --> Kolb-List message posted by: John Hauck > Kolbers, I SOLOED!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! > pp Paul/All: You da man!!! Congratulations. john h DO NOT ARCHIVE ________________________________ Message 44 ____________________________________ Time: 05:30:52 PM PST US From: "John Clayton" Subject: RE: Kolb-List: Kolb spins --> Kolb-List message posted by: "John Clayton" "Mister" John Hauck, Don G, Rick W/All My son Jim hooked me up with the Kolb-List. I have been found the listings to be very informative. It was a pleasure to meet you 3 and other Kolbers at Oshkosh. John - (Jim used the term "mister" as a sign of respect and I concur), your stories of your experiences are VERY interesting, thorough, and well written. I enjoy reading the diaries and pictures of your trips and the planning of your Alaska trip almost as if I were there. Re: The "Spin-Stall" reply by Jack Hart...the point of differing opinions is well taken, however, I think your intention may have been mis-understood. It appears to me that you share your opinions, experiences and information to be taken at face value for the benefit of the readers not as preachy dogma. There's no need for each person to reinvent the wheel. VG's sound like a good idea, but the ANALysis was getting a little ANAL. For "Honda" Don, I enjoy your hillbilly vernacular. How about "Hondabond" for dentures? "VW" Rick, Are you going to try that WWII Verner engine? Matt Draille - Nicely managed site, but if you make it better it'll be different and for us old-guys change is bad, even if it is change for the better. I'm waiting for the VG testers to try out the new posting system and explain it to me. Kolbers, keep the info flowing. John Clayton - (Jim's dad) Home in the California "gold country" -----Original Message----- From: owner-kolb-list-server@matronics.com [mailto:owner-kolb-list-server@matronics.com]On Behalf Of John Hauck Subject: Re: Kolb-List: Kolb spins --> Kolb-List message posted by: John Hauck > I always think about that accident when I wonder how the Kolb family of > aft-engined airplanes would handle spins... Haven't heard the subject come > up much on the list... > Beauford Beauford/All: I have spun all three of my Kolbs: Ultrastar Original Firestar MKIII All three spin and recover instantaneously. The Ultrastar spins like a Cessna 152 without all the altitude loss. The Firestar would spin 1/2 turn with stick back to the stop, full right or left rudder, engine idling, and return to flying with controls locked in that position. An engine off spin and the FS spins up like a top with instant recovery by relaxing the controls. I'm sorry I can not remember altitude loss for any of the three models for number of spins. I'll have to do some spins in Miss P'fer to refresh my memory, but altitude loss with her or the other two Kolbs was not much. However, would not want to do one near the ground. No bad habits with either of the three. Never got into or near an inadvertent spin with any of them. Ailerons are still in control during stalls/mushes on all three. Instant recovery by relaxing controls on all three. The Firestar would recover from any unusual attitude by relaxing controls. That includes inverted, tailslides, falling out of unsuccessful aileron rolls, screwed up hammer heads, stalling out of loops and wing overs. No vortex generators on any of them. I may get around to experimenting with gap seals on rudder and elevator, but don't have time right now to mess with that. With well over 3,500 hours and 19+ years flying Kolbs, I have never found any of them to have bad habits of any kind. If they did, I probably wouldn't be flying them today. They will stall level, near the ground, giving the pilot the impression he is flying, but in a full stall. Nearly impossible to push the nose over to regain flight before impact in this configuration. Got into this situation once with the MKIII and gravity won. Thank God I was strapped in to a crashworthy airplane or I may have suffered more than black and blue bruises on bottom of my thighs and loss of my glasses on impact. I don't think I will get involved in the experimentation process of vortex generators. I am pleased with the performance band of my MKIII. The airplane responds to my commands and makes me happy the way it is configured. From a lot of the posts I read concerning vortex generator experimentation, the test pilots don't have enough time in Kolbs to know how to fly them in the standard configuration, much less experiment and change a well proven design that has been flying for many years. Take care, john h PS: Don't spin without a parachute. And don't be attempt to be an aerobatic pilot in an airplane that is not designed for aerobatics. Might kill ya!!! ________________________________ Message 45 ____________________________________ Time: 05:45:51 PM PST US From: "bryan green" Subject: Re: Kolb-List: 1/2 VW --> Kolb-List message posted by: "bryan green" IMHO too little power and too much weight. DO NOT ARCHIVE Bryan Green Elgin SC Firestar I 377 BRS ----- Original Message ----- From: Subject: Kolb-List: 1/2 VW > --> Kolb-List message posted by: Dwight.Kottke@hti.htch.com > > Has anyone put a 1/2 VW engine on a Firestar? > Pro's > Con's > Advice > > The Flying Farmer > Firestar > 377 > 157 hours > > > do not archive > > ________________________________ Message 46 ____________________________________ Time: 05:47:42 PM PST US From: "Larry Bourne" Subject: Re: Kolb-List: 1/2 VW --> Kolb-List message posted by: "Larry Bourne" As Rick said, and has been said before - the VW needs a re-drive to get its RPM's up, and a prop to match. It also depends a lot on WHich 1/2 VW. 1/2 of a stock 1600 is going to be pretty anemic whatever you do. 1/2 of a 2110cc or 2180cc is going to have a lot more go-gittum - probably on the order of 50 - 60 horses. I'm not certain, but have heard that the 1/2 VW's have quite a bit of vibration. Any one know about that ?? Lar. Larry Bourne Palm Springs, CA Kolb Mk III - Vamoose N78LB www.gogittum.com ----- Original Message ----- From: "Kirk Smith" Subject: Re: Kolb-List: 1/2 VW > --> Kolb-List message posted by: "Kirk Smith" > > I can tell you the difference between a 1/2 VW and a 447 Rotax on a > Minimax. The Rotax flat humiliates the VW. Wouldn't have a half VW. Take > off distance with 447 100 feet on 80 degree day. Take off with VW same day > 600 feet. Kirk > > ________________________________ Message 47 ____________________________________ Time: 06:08:42 PM PST US From: "bryan green" Subject: Re: Kolb-List: First Solo --> Kolb-List message posted by: "bryan green" Congradulations Paul ! do not archive Bryan Green (Elgin SC) ----- Original Message ----- From: "Paul Petty" Subject: Kolb-List: First Solo > --> Kolb-List message posted by: "Paul Petty" > > Kolbers, > I SOLOED!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Wow nothing like I expected. Had to hold short for a King Air on approach then taxied out onto 13 and let her have it! just as I started my takeoff roll I realized my window was open! Yikes!!! Got it closed and made a good take off and circled to make the three requierd touch and goes. First landing was far short of pretty. I bounced then balloned, got all crossways bounced again then working the rudder like a tail dragger managed to regain control and settle on to the runway. The next two were perfect greased landings. Upon returning to the ramp my CFI asked "What tha heck was that" I said " I don't have a clue but I wont do that again!" Any way I'm all set to go practice. I will post some photo's of this great day. > > > pp > > do not archive > > ________________________________ Message 48 ____________________________________ Time: 06:10:38 PM PST US From: "beauford" Subject: Re: Kolb-List: First Solo --> Kolb-List message posted by: "beauford" Good on ya, Paul... If you live to a hundred, you will never forget this day... Congratulations...!!! Beauford Do Not Archive ----- Original Message ----- From: "Paul Petty" Subject: Kolb-List: First Solo > --> Kolb-List message posted by: "Paul Petty" > > Kolbers, > I SOLOED!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Wow nothing like I expected.post some photo's of this great day. > > > pp > > ________________________________ Message 49 ____________________________________ Time: 06:38:26 PM PST US From: Bob Noyer Subject: Re: Kolb-List: jury struts --> Kolb-List message posted by: Bob Noyer John--thet haint prudent bn ________________________________ Message 50 ____________________________________ Time: 07:33:27 PM PST US From: "Richard Swiderski" Subject: Re: Kolb-List: 1/2 VW --> Kolb-List message posted by: "Richard Swiderski" Lar, I have a buddy who is an extraordinary mechanic & machinist. We have a mutual friend who had a 1/2 VW in an N3-Pup which vibrated badly. My buddy rebalanced the crank with a bunch of heavy metal & it ran like silk. It too took all day to get up to alttitude, but it sure flew nice once there. Anyway, the factory boys got wind of it & asked my buddy to do a "test" crank for them. He did. A few months later I read in UL Flying that they fixed the vibration problem common to the 1/2 VW's & took all the credit. Richard S ----- Original Message ----- From: "Larry Bourne" Subject: Re: Kolb-List: 1/2 VW > --> Kolb-List message posted by: "Larry Bourne" > > As Rick said, and has been said before - the VW needs a re-drive to get its > RPM's up, and a prop to match. It also depends a lot on WHich 1/2 VW. 1/2 > of a stock 1600 is going to be pretty anemic whatever you do. 1/2 of a > 2110cc or 2180cc is going to have a lot more go-gittum - probably on the > order of 50 - 60 horses. I'm not certain, but have heard that the 1/2 VW's > have quite a bit of vibration. Any one know about that ?? > Lar. > > Larry Bourne > Palm Springs, CA > Kolb Mk III - Vamoose N78LB > www.gogittum.com > > ----- Original Message ----- > From: "Kirk Smith" > To: > Subject: Re: Kolb-List: 1/2 VW > > > > --> Kolb-List message posted by: "Kirk Smith" > > > > I can tell you the difference between a 1/2 VW and a 447 Rotax on a > > Minimax. The Rotax flat humiliates the VW. Wouldn't have a half VW. > Take > > off distance with 447 100 feet on 80 degree day. Take off with VW same day > > 600 feet. Kirk > > > > > > ________________________________ Message 51 ____________________________________ Time: 08:22:20 PM PST US From: FIXERJONES@aol.com Subject: Re: Kolb-List: Ultra Star reduction drive --> Kolb-List message posted by: FIXERJONES@aol.com yea,i had the same cuyuna& i made a wrench out of flat steel 3.5" wide by 12" long by 3/16. lay out the opening with & cut it out & fit it tight to the nut& wack it with a hammer to break it free,,,,,,,,,mine worked great ________________________________ Message 52 ____________________________________ Time: 08:26:10 PM PST US From: "CRAIG M NELSON" Subject: Re: Kolb-List: Re: New Mark III Instrument Pod --> Kolb-List message posted by: "CRAIG M NELSON" Like it is in the picture it's carbon and epoxy no paint and I don't plan to paint it. It doesn't need clear as the first layer in the mold is clear gelcoat. It will be ready to bolt on. I made brackets out of angle aluminum with nut plates to secure the front aluminum panel. let me know when you are ready and I'll lay one up for you. right now I'm trying to get the plane flying for Dec. 17. Craig ----- Original Message ----- From: Clayton, James Subject: FW: Kolb-List: Re: New Mark III Instrument Pod Hi Craig, Great! The shape of the pod looks perfect. I've not yet started the wings, so I'm in no hurry. When you have time let me know and I'll send a check, ok? I like the way the carbon fiber looks, with the clear on it. Will the UV damage it if I don't paint it? Would you suggest carbon fiber, or glass? Take care, Jim Jim Clayton California Mark-3X, Building -----Original Message----- From: owner-kolb-list-server@matronics.com [mailto:owner-kolb-list-server@matronics.com]On Behalf Of CRAIG M NELSON Subject: Re: Kolb-List: Re: New Mark III Instrument Pod --> Kolb-List message posted by: "CRAIG M NELSON" Jim; yes I would love to share the pod with you I have the mould. just tell me how you would like to have it ( s glass or carbon fiber) I don't think I will sell the glare shield because it was time consuming and I didn't stitch the leather. the carbon piece will probably cost about $200 Uncle CraigMKIIIex912uls Arizona ----- Original Message ----- From: Jim Clayton Subject: Kolb-List: Re: New Mark III Instrument Pod --> Kolb-List message posted by: Jim Clayton --> Kolb-List message posted by: Email List Photo Shares A new Email List Photo Share is available: Poster: Craig Nelson Subject: New Mark III Instrument Pod Craig, That instrument pod, and glare shield is amazing! I imagined the exact instruments, and needing a larger pod, however I don't have the skills with fiberglass or carbon fiber. Would you be willing to build more of them, and if so, what do you supose it might cost? I really like the paint job on the panel. do not archive -Jim Jim Clayton California Mark-3X, Building ________________________________ Message 53 ____________________________________ Time: 09:59:26 PM PST US From: "Don Gherardini" Subject: Re: Kolb-List: First Solo --> Kolb-List message posted by: "Don Gherardini" PAUL HOT DANG....aint it great.....this day will be one that will forever stick with ya pard!... My Solo was...hmm....28 years ago....I cant remember much else about that whole year..but that day...I still have it in my memories! Congrats Paul and welcome to the wonderful world of Aviati'n do not archibve http://www.geocities.com/dagger369th/my_firefly.htm Don Gherardini- FireFly 098 ________________________________ Message 54 ____________________________________ Time: 10:07:42 PM PST US From: "Don Gherardini" Subject: Re: Kolb-List: Kolb spins --> Kolb-List message posted by: "Don Gherardini" John Clayton Glad to hear from you sir, and I was thinking that meeting you and your son at OshKosh was my pleasure! http://www.geocities.com/dagger369th/my_firefly.htm Don Gherardini- FireFly 098 ________________________________ Message 55 ____________________________________ Time: 10:11:45 PM PST US From: "Larry Bourne" Subject: Re: Kolb-List: 1/2 VW --> Kolb-List message posted by: "Larry Bourne" Seems like that happens a lot, doesn't it..............steal an idea, then take credit for it. Good to hear from you, Richard. Do not Archive. Larry Bourne Palm Springs, CA Kolb Mk III - Vamoose N78LB www.gogittum.com ----- Original Message ----- From: "Richard Swiderski" Subject: Re: Kolb-List: 1/2 VW > --> Kolb-List message posted by: "Richard Swiderski" > > Lar, > > I have a buddy who is an extraordinary mechanic & machinist. We have a > mutual friend who had a 1/2 VW in an N3-Pup which vibrated badly. My buddy > rebalanced the crank with a bunch of heavy metal & it ran like silk. It too > took all day to get up to alttitude, but it sure flew nice once there. > Anyway, the factory boys got wind of it & asked my buddy to do a "test" > crank for them. He did. A few months later I read in UL Flying that they > fixed the vibration problem common to the 1/2 VW's & took all the credit. > > Richard S > > ----- Original Message ----- > From: "Larry Bourne" > To: > Subject: Re: Kolb-List: 1/2 VW > > > > --> Kolb-List message posted by: "Larry Bourne" > > > > As Rick said, and has been said before - the VW needs a re-drive to get > its > > RPM's up, and a prop to match. It also depends a lot on WHich 1/2 VW. > 1/2 > > of a stock 1600 is going to be pretty anemic whatever you do. 1/2 of a > > 2110cc or 2180cc is going to have a lot more go-gittum - probably on the > > order of 50 - 60 horses. I'm not certain, but have heard that the 1/2 > VW's > > have quite a bit of vibration. Any one know about that ?? > > Lar. > > > > Larry Bourne > > Palm Springs, CA > > Kolb Mk III - Vamoose N78LB > > www.gogittum.com > > > > ----- Original Message ----- > > From: "Kirk Smith" > > To: > > Subject: Re: Kolb-List: 1/2 VW > > > > > > > --> Kolb-List message posted by: "Kirk Smith" > > > > > > I can tell you the difference between a 1/2 VW and a 447 Rotax on a > > > Minimax. The Rotax flat humiliates the VW. Wouldn't have a half VW. > > Take > > > off distance with 447 100 feet on 80 degree day. Take off with VW same > day > > > 600 feet. Kirk > > > > > > > > > > > > ________________________________ Message 56 ____________________________________ Time: 10:50:30 PM PST US From: Jim Clayton Subject: Kolb-List: Re: New Mark III Instrument Pod --> Kolb-List message posted by: Jim Clayton Hi Craig, Sounds good. I will wait to bug you until at least Dec. 18th ;-) Do not archive -Jim Jim Clayton California Mark-3X, Building --> Kolb-List message posted by: "CRAIG M NELSON" Like it is in the picture it's carbon and epoxy no paint and I don't plan to paint it. It doesn't need clear as the first layer in the mold is clear gelcoat. It will be ready to bolt on. I made brackets out of angle aluminum with nut plates to secure the front aluminum panel. let me know when you are ready and I'll lay one up for you. right now I'm trying to get the plane flying for Dec. 17. Craig ________________________________ Message 57 ____________________________________ Time: 10:54:20 PM PST US From: WillUribe@aol.com Subject: Re: Kolb-List: 1/2 VW --> Kolb-List message posted by: WillUribe@aol.com About a year or two ago I posted some FireStar pictures from St. Louis with a VW engine mounted on the nose. Now I can't find those pictures. Will Uribe El Paso, TX (but working in Kansas City). FireStar II N4GU C-172 N2506U http://home.elp.rr.com/airplane/ do not archive > > --> Kolb-List message posted by: Dwight.Kottke@hti.htch.com > > > > Has anyone put a 1/2 VW engine on a Firestar? > > Pro's > > Con's > > Advice > > > > The Flying Farmer > > Firestar > > 377 > > 157 hours ________________________________ Message 58 ____________________________________ Time: 11:03:17 PM PST US From: Jim Clayton Subject: Kolb-List: Re: Jury struts --> Kolb-List message posted by: Jim Clayton Rick/Gang, I didn't realize jury struts were standard in the past. I suppose I could call TNK and get drawings or pictures? If anyone has pictures or a website with the details, please post them. Thanks for the flood of quality info, people! Jim Clayton California Mark-3X, Building --> Kolb-List message posted by: "Richard & Martha Neilsen" Jim My MKIIIc has jury struts with clevis pins. There is one clevis pin on the wing attach end. The other end is permanently attached to the main strut but folds flat with the main strut when disconnected for wing fold. My MKIIIc was one of the last few that had stock jury struts before they changed to full length tube supports in the main struts that eliminated the need for the jury struts. The jury struts add drag and only help with negative G limits. Ok and also when a wheel breaks off. Rick Neilsen Redrive VW Powered MKIIIc