---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Thu 08/28/03: 22 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:22 AM - Re: More wing (Kirk Smith) 2. 05:09 AM - Re: More wing (John Hauck) 3. 05:47 AM - Re: More wing (Kirk Smith) 4. 06:19 AM - changes (Bob Bean) 5. 07:07 AM - Re: Cleaning Up The FireFly Continues. (Richard & Martha Neilsen) 6. 07:15 AM - Re: changes (Richard Pike) 7. 07:22 AM - Dennis choice of prop (Gherkins Tim-rp3420) 8. 08:03 AM - Re: gear boxes (Christopher J Armstrong) 9. 09:28 AM - Re: gear boxes correction (Christopher J Armstrong) 10. 04:08 PM - Re: changes (John Hauck) 11. 04:17 PM - Re: Dennis choice of prop (John Hauck) 12. 05:28 PM - Re: Cleaning Up The FireFly Continues. (Jack & Louise Hart) 13. 05:28 PM - Re: Cleaning Up The FireFly Continues. (Jack & Louise Hart) 14. 06:10 PM - Re: Tailwheel (Larry Bourne) 15. 06:10 PM - Trip (Larry Bourne) 16. 06:10 PM - Re: Tailwheel (Larry Bourne) 17. 06:10 PM - Re: Tailwheel (Larry Bourne) 18. 06:11 PM - Re: Cleaning Up The FireFly Continues. (Jack & Louise Hart) 19. 06:44 PM - Re: sprockets (Larry Bourne) 20. 06:58 PM - Re: changes (Larry Bourne) 21. 07:17 PM - Break Down? (John Hauck) 22. 08:03 PM - Re: changes (Don Gherardini) ________________________________ Message 1 _____________________________________ Time: 04:22:59 AM PST US From: "Kirk Smith" Subject: Re: Kolb-List: More wing --> Kolb-List message posted by: "Kirk Smith" > > Kirk/All: > > Yes sir, it did. I read but did not respond. Are > you by chance referring to Woody's T-Bird Kolb clone? John/All Nope, was referring to this one. http://www.bcchapel.org/pages/0003/kolb.htm Kirk Do not archive ________________________________ Message 2 _____________________________________ Time: 05:09:55 AM PST US From: John Hauck Subject: Re: Kolb-List: More wing --> Kolb-List message posted by: John Hauck John/All > Nope, was referring to this one. > http://www.bcchapel.org/pages/0003/kolb.htm Kirk Kirk/All: OK. Richard really reduced the stall speed on his MK III, 26 mph. Other than stall, the numbers jive with my numbers when Miss P'fer was powered by 582 to include fuel burn. She burned 5 to 5.5 gph at 5800 to 6000 rpm. I have no parasol wing, but a fully enclosed fuselage. I still have my big, wide, bulging doors. Yes, there is dead air on the rear quarter windows and also in the area between leading edge of wing and windshield. I always take note of the dead air when I fly in rain. However, not worth the effort to change my original design. The Kolb Factory built me a fairing to go between wing and windshield, but alas, by the time it was completed a slight error was made and it did not fit correctly. Was really looking forward to this mod to see if we had reduced a lot of dead air. The bulging doors were considered for down sizing, but during the last two complete glass replacements I decided to keep the bulges for comfort and visibility. Thanks for the hint, john h ________________________________ Message 3 _____________________________________ Time: 05:47:40 AM PST US From: "Kirk Smith" Subject: Re: Kolb-List: More wing --> Kolb-List message posted by: "Kirk Smith" > OK. Richard really reduced the stall speed on his > MK III, 26 mph. I think he improved his top end speed a bit also. Improvements at top and bottom has improved the overall STOL performance of the Mark 3. Kirk Do not archive ________________________________ Message 4 _____________________________________ Time: 06:19:24 AM PST US From: Bob Bean Subject: Kolb-List: changes --> Kolb-List message posted by: Bob Bean Kirk/others looking for drag reduction: one big hurdle in air flow improvement is the break at the rear of the doors, the breeze must have a tough time getting around there. I think brother Pike and maybe someone else put VG's there. The door bulge actually helps the transition. An easy fix, (if done BEFORE covering) would be to attach smoothing stringers to that area to reconform the fabric shape. I stuck a little diagonal at the bottom rear of the opening with a slight curve in the fabric. -That's the nice thing about "experimental", although if you want to go fast build a Sonex. -BB do not archive ________________________________ Message 5 _____________________________________ Time: 07:07:19 AM PST US From: "Richard & Martha Neilsen" Subject: Re: Kolb-List: Cleaning Up The FireFly Continues. --> Kolb-List message posted by: "Richard & Martha Neilsen" Larry You may want to check the archives. We beat this to death a few years ago and I don't need to see it again. My personal feeling is you should have modified the trailer. The longer rod socket gives you more leverage so you don't have to put as much weight on to counter balance the ailerons. Rick Neilsen Redrive VW powered MKIIIc ----- Original Message ----- From: "Larry Bourne" Subject: Re: Kolb-List: Cleaning Up The FireFly Continues. > --> Kolb-List message posted by: "Larry Bourne" > > Hokay..................with that thought in mind, what about this - to make > Vamoose fit in that trailer, I had to cut the aileron counterbalance rod > sockets about 4" to get clearance in the nose of the trailer. Do you think > I'll need longer counterbalance rods, or will the existing ones be heavy > enuf ?? Do you feel that the ailerons should balance "neutral" with the > rods, or just off-set some of the weight ?? I had trouble figuring just > where "neutral" was, cause of the weight of the flaps. > Puzzled Lar, camped at Carlsbad Caverns, NM tonight. (at Ronnie Wehba's > excellent suggestion, during our visit in Sweetwater, Texas today) > > Larry Bourne > Palm Springs, CA > Kolb Mk III - Vamoose N78LB > www.gogittum.com > ________________________________ Message 6 _____________________________________ Time: 07:15:40 AM PST US From: Richard Pike Subject: Re: Kolb-List: changes --> Kolb-List message posted by: Richard Pike I think John Hauck is right in his assessment that the MKIII is top end limited, so far 93 is about all I can coax out of it with 65 hp, mostly the various mods have resulted in being able to cruise at lower rpm's than previously. I am starting to be convinced that there is not much you can do to make it go faster, but there is a lot you can do to make it more efficient at the speeds where it likes to fly. And that translates to lower noise and lower fuel burn. Richard Pike MKIII N420P (420ldPoops) do not archive At 09:27 AM 8/28/03 -0400, you wrote: >--> Kolb-List message posted by: Bob Bean > >Kirk/others looking for drag reduction: one big hurdle in air flow >improvement >is the break at the rear of the doors, the breeze must have a tough time >getting around there. I think brother Pike and maybe someone else put >VG's there. The door bulge actually helps the transition. An easy fix, >(if done BEFORE covering) would be to attach smoothing stringers >to that area to reconform the fabric shape. I stuck a little diagonal at >the bottom rear of the opening with a slight curve in the fabric. > -That's the nice thing about >"experimental", although if you want to go fast build a Sonex. -BB >do not archive > > ________________________________ Message 7 _____________________________________ Time: 07:22:12 AM PST US From: Gherkins Tim-rp3420 Subject: Kolb-List: Dennis choice of prop --> Kolb-List message posted by: Gherkins Tim-rp3420 John and gang, Below is a "Prop" message I saved from Dennis S. posted on 1-17-01. Read on and enjoy. Tim G. Firestar II waiting for cool paint weather. ---The following is from Dennis S.---- I didnt intend to sound like a commercial for Ivo; rest assured I have nothing to gain if Ivo sells another prop. Seems to me the question asked was pretty focused on choosing between Ivo and Warp. My comments were further restricted to FireStars and FireFlys. If I had extended the discussion to Mark-IIIs, SlingShots and Lasers, my prop preference would have largely (but not entirely) moved to the Warps for other valid reasons - but that was not the scope of my discussion. It is simply that for the FireStar and FireFly, I have come to appreciate the unique blend of qualities the Ivos possess. This is confirmed by many years of experience flying with all these propellers. Ivos have always felt smoother to me perhaps lots of self-canceling harmonics are going on as you suggest, perhaps the rougher running Warps are actually ... smoother? Perhaps we will never know. But I do know (1) the Ivo feels smoother than any other prop I have used and (2) parts arent cracking, breaking or otherwise coming apart - all this over many years of flying experience. I dont think it is stretching to conclude the Ivo is a smoother running prop. And there are reasons why I believe the Ivo is smoother than Warp, given a comparable degree of balance: I have taken considerable pains with many individual propellers to achieve what I would describe as a perfect static balance. I am very sensitive to vibration it drives me nuts and so I expended no small amount of time and energy over the years to achieve as smooth a running engine as possible. I have balanced, as described above, many wood propellers, Ivos and Warps. The best-balanced wood propellers I always felt were still relatively rough running not entirely across the rpm range, but in sufficient areas to be annoying. Ditto Warps (except for 3-blades which could run relatively smoothly). This is not to say that I havent felt I made improvements in smoothness with accurate balancing - but I never felt I could achieve as smooth running engine & prop combinations with wood and Warps as I would have liked. (I have only ever statically balanced propellers and I realize that it is possible to have a static balance but a dynamic imbalance. Undoubtedly this frustrates our mastery of the whole balance and smoothness issue.) I soon discovered that Ivos were in a class by themselves. Have I ever had a rough running Ivo? Yes, but this was the exception not the rule. I have used several balancing techniques and I could not discover much difference between the methods. The most common method was simply to apply extra paint to the lighter prop tip. This would take several days of repeated applications, because as the paint dries, the balance changes, so it is an iterative technique. With the composite props I would sand the end of the heavy tip to achieve balance. The other method involved drilling the prop hub and inserting weights into the hole, usually cut-off bolts. This was done between the prop flanges to capture the slugs. I would fine tune if necessary by adding additional washers under the bolt head. For the composites, I would use longer bolts, if necessary for extra washers. But the results were always the same, Warps and woods still had an edge of roughness, but not the Ivos. It was then that I formulated my hypothesis, that the Ivos flexibility was what made the critical difference in smoothness. Especially with pushers with the prop directly behind the wing, the air inflow is very turbulent. I believe the flexible Ivo dissipates some of the resultant vibrations before they get transmitted to the hub. An analogy would be comparing a flexible airplane wing and a very rigid airplane wing flying along in extreme turbulence. The rigid wing will transmit all the bumps and shock directly into the fuselage. The flexible wing will flex and bend along with the bumps and absorb some of the vibration before it gets to the fuselage. (With the larger reduction ratios, this flexiblity can become a problem, I feel the Ivo's are happiest spinng at the faster speeds with ratios at less than 3:1) For many years Kolb resisted Ivos simply because they appeared to be too flexible. But the first time the Ivo & spacer was used, the lower prop noise was immediately apparent. This was when it was discovered the magic of just adding an additional 2 of clearance between prop and wing. It does lessen the prop noise considerably a decibel meter is not needed to discern this. The main point of the spacer is not that its needed because of the Ivos flexibility but the extra distance this spacer creates for the prop behind the wing which reduces the noise. I do consider the Warps to be very difficult to adjust if done accurately. I had special jigs and fixtures made up to speed the process but it was still a lot of work. The Ivo is so easy and simple that it is practical to change the pitch for a single flight if desired, say a cross country flight is contemplated when most of your flying is around the patch. It only takes a couple minutes to change the pitch to a cruise setting. Back when Phil Lockwood was powering his Air-Cam with 582s I asked him why he was running Ivos, he said he had tried all the major props on the Air Cam and the Ivo was the winner for making thrust. He said its easy to determine which engine is stronger as the aircraft will yawl one way or the other. This compares thrust, not just statically, but over a range of airspeeds. Hmm reason # 8? Dennis If I recall > correctly, Dennis of orig Kolb advised against the Warp on the smaller > engines, but great on the bigger ones. I still love the performance of > the Warp -- I doubt if it can be beat. There might be some question as > to whether the B gearbox will last as long with the Warp. > > -Ben Ransom Ben/All: If Dennis Souder is lurking, perhaps he will enlighten us on why he would advise not running the Warp two blade on smaller Rotax with B gearbox. Heck, I remember seeing folks running 3 blade warps on the B gearbox on 582's. Thanks for the info Ben. Waiting patiently for you to get back into the air. Good luck. john h ________________________________ Message 8 _____________________________________ Time: 08:03:53 AM PST US From: "Christopher J Armstrong" Subject: RE: Kolb-List: gear boxes --> Kolb-List message posted by: "Christopher J Armstrong" Could someone explain to me the differences and advantages of different gear ratios. For instance I have a 3:1 gear reduction on my 582. The reason for the question is that I sent in my "in flight adjustable motor to IVO in Long Beach Calif for repair. The guy wanted to know what my gear ratio was. When I told him he proceeded to try to sell me a medium blade rather than the "light" ones that I have. I didn't tell him if I was to actually change blades it would probably be a warp. :-) Anyway if anyone has a plain layman simple explanation of the differences between the different drives I would be grateful. Larry Think about riding a bike... when you want to go fast you shift to a gear that lets you spin the wheels real fast. When you want to go up a hill you can't push the big a gear anymore so you shift down to a gear that you can spin. In planes if you want to turn a real big prop that can make lots of thrust it takes lots of torque, and you get lots of torque by reducing rpm. To absorb the torque you need more prop, so wider blades (or a larger diameter or more blades, what ever fits) are useful. It you want to go fast then you need lots of pitch in the blades and if you spin them slow they will be at a high angle of attack, and they will probably be stalled and you will get very little thrust. If you spin them faster they will be a lower angle of attack and not stalled. In-flight adjustable pitch becomes really useful on planes with a big speed range, but you could also change gears to get a similar effect. You are setting the angle of attack to the props most efficient setting at each speed that you are flying. --- ________________________________ Message 9 _____________________________________ Time: 09:28:01 AM PST US From: "Christopher J Armstrong" Subject: RE: Kolb-List: gear boxes correction --> Kolb-List message posted by: "Christopher J Armstrong" -----Original Message----- From: owner-kolb-list-server@matronics.com [mailto:owner-kolb-list-server@matronics.com] On Behalf Of Christopher J Armstrong Subject: RE: Kolb-List: gear boxes --> Kolb-List message posted by: "Christopher J Armstrong" Could someone explain to me the differences and advantages of different gear ratios. For instance I have a 3:1 gear reduction on my 582. The reason for the question is that I sent in my "in flight adjustable motor to IVO in Long Beach Calif for repair. The guy wanted to know what my gear ratio was. When I told him he proceeded to try to sell me a medium blade rather than the "light" ones that I have. I didn't tell him if I was to actually change blades it would probably be a warp. :-) Anyway if anyone has a plain layman simple explanation of the differences between the different drives I would be grateful. Larry Think about riding a bike... when you want to go fast you shift to a gear that lets you spin the wheels real fast. When you want to go up a hill you can't push the big a gear anymore so you shift down to a gear that you can spin. In planes if you want to turn a real big prop that can make lots of thrust it takes lots of torque, and you get lots of torque by reducing rpm. To absorb the torque you need more prop, so wider blades (or a larger diameter or more blades, what ever fits) are useful. It you want to go fast then you need lots of pitch in the blades and if you spin them slow they will be at a high angle of attack, and they will probably be stalled and you will get very little thrust. If you spin them faster they will be a lower angle of attack and not stalled. In-flight adjustable pitch becomes really useful on planes with a big speed range, but you could also change gears to get a similar effect. You are setting the angle of attack to the props most efficient setting at each speed that you are flying. Sorry, The part about aoa is backwards... if you spin it slower the aoa is reduced and if you spin it faster the aoa is increased. Anyway the point is you are matching a forward airspeed with a rotation speed to get the prop you want in its optimum aoa range --- --- Incoming mail is certified Virus Free. --- ________________________________ Message 10 ____________________________________ Time: 04:08:13 PM PST US From: John Hauck Subject: Re: Kolb-List: changes --> Kolb-List message posted by: John Hauck > I think John Hauck is right in his assessment > that the MKIII is top end limited, so far 93 is > about all I can coax out of it with 65 hp, > mostly the various mods have resulted in being > able to cruise at lower rpm's than previously. > Richard Pike MKIII N420P (420ldPoops) Richard/All: Our numbers track together consistently. I think it is the wing that keeps us in that 90 to 100 mph top speed area. 80 to 90 for cruise is fine for me. If I need to go faster, better get another airplane. However, I don't know what I could get and afford that would perform the way Miss P'fer does. She satisfies all my aviating desires and requirements. That is why I am still flying her after all this time. Just got back from 3+ hours of very enjoyable flight. Big ole puffy white cumulus clouds, blue shy, no wind, and 58F at 7,000 feet. Cloud dancing at its best. So good it is almost like cheating................ Take care, john h ________________________________ Message 11 ____________________________________ Time: 04:17:47 PM PST US From: John Hauck Subject: Re: Kolb-List: Dennis choice of prop --> Kolb-List message posted by: John Hauck > Below is a "Prop" message I saved from Dennis S. posted on 1-17-01. > Read on and enjoy. > > Tim G. Tim G/All: Thanks for the message Tim. I read Dennis' msg and he talks a lot about the ease of balancing and setting pitch on the IVO. I think I mentioned in a recent post I set and forget, once I get the Warp dialed in where I want it. This process usually takes three adjustments if I am starting from zero experience with a prop, engine, and airplane. Ease of balance??? I have never had to balance a Warp blade. I don't know of anyone that has. Us Warpers just don't discuss prop balance. Warps come from the factory balanced, have good hubs, so balancing and "frequent" pitch adjustments are not necessary. Again, I frequently fly more than 500 hours without touching the Warp (and that includes retorque of prop bolts). Warp is set and forget. I think Dennis' flight experience in Kolbs is primarily local area flying. I never heard him discuss doing a long XC in one. There is a lot of difference playing in the local area and what one can discover after sitting in the seat for 8 to 10 hours a day. If you have a prop problem, I can assure you you will know it in those conditions. I am not slamming Dennis for his type flying or his props. Just stating what I have discovered flying Warps for many many hours, day after day. Take care, john h ________________________________ Message 12 ____________________________________ Time: 05:28:44 PM PST US From: Jack & Louise Hart Subject: Re: Kolb-List: Cleaning Up The FireFly Continues. --> Kolb-List message posted by: Jack & Louise Hart At 11:17 PM 8/25/03 -0400, you wrote: >--> Kolb-List message posted by: Richard Pike > >One thought - Having read a bit on flutter, there is a possibility that >taking the trailing edges on the ailerons to a knife edge may make them >more flutter prone. Plus, you will inevitably be adding a tad more weight >to the aileron trailing edges. > Richard, I researched this a little. I searched the Web using Google and the words "knife edge" and "aileron flutter". There were many references to RC model aircraft, but I found none relative to actual aircraft. Also, I took a walk about K02 and checked out the various GA planes that are hangared there. Many had knife edges on the ailerons and the tail feathers. I searched the Kolb Archives, and I found that Jimmy Hankinson, a FireFly owner, asked the list if anyone had experienced aileron flutter on a FireFly. None was reported. Using the Web, Google, and the words "FireFly" and "aileron flutter", the only site listed was the Kolb email list archive. With the early FireFlys using 15 inch chord ailerons one would expect that if it was going to happen, aileron flutter would have been reported by now. Jack B. Hart FF004 Jackson, MO Jack & Louise Hart jbhart@ldd.net ________________________________ Message 13 ____________________________________ Time: 05:28:44 PM PST US From: Jack & Louise Hart Subject: Re: Kolb-List: Cleaning Up The FireFly Continues. --> Kolb-List message posted by: Jack & Louise Hart At 11:17 PM 8/25/03 -0400, you wrote: >--> Kolb-List message posted by: Richard Pike > > >One thought - Having read a bit on flutter, there is a possibility that >taking the trailing edges on the ailerons to a knife edge may make them >more flutter prone. Plus, you will inevitably be adding a tad more weight >to the aileron trailing edges. Richard, I have researched this a little. I searched the web with Google using the words, "knife edge" and "aileron flutter". I discovered many sites that describe the phenomena relative to RC model planes but none relative to actual aircraft. I searched the Kolb Archives and found that Jimmy Hankinson, a FireFly owner, actually asked if anyone had experienced aileron flutter on a FireFly. There has been no reported case of aileron flutter on a FireFly to this list, and I did not find any on the Web using Google and the words "FireFly" and "aileron flutter". I took a walk around at K02 and looked at trailing edges of wings, rudders, and elevators on GA planes. Many come to a knife edge. The early FireFlys had 15 inch chord ailerons, so if they were going to flutter, it seems reasonable that we would have heard about it by now. Jack B. Hart FF004 Jackson, MO Jack & Louise Hart jbhart@ldd.net ________________________________ Message 14 ____________________________________ Time: 06:10:30 PM PST US From: "Larry Bourne" Subject: Re: Kolb-List: Tailwheel --> Kolb-List message posted by: "Larry Bourne" Big Lar B.S. - Do not Archive. I've been convinced to change the tailwheel, and will do so, forthwith. Anyone want a good deal on a "very slightly used" tailwheel ??? The trip has been great - wonderful, in fact, and I had hoped to be home by tomorrow night, to avoid Labor Day traffic in the Colorado River strip/Phoenix areas, which is a mess on any weekend. My timing for the whole trip worked out almost perfectly, after nearly 8 weeks/14,000+ miles on the road. Yesterday, 30 miles after leaving Carlsbad Caverns, New Mexico (a "must see") the fuel transfer pump quit on the truck, and that big Cummins came to an immediate halt, 100 miles east of El Paso, Texas. Absolutely barren country. No cell phone service. One time, just try flagging down other drivers way out in the middle of no-where. What Fun ! ! ! The real pain is that I'd installed a fuel pressure gauge well before leaving on this trip - on advice of members of the Dodge-Diesel.com forum - specifically for this reason. Coming south thru Georgia, fuel pressure started fluctuating, on a Friday evening, so on the following Monday while at John Hauck's place I had the pump changed in Clanton, AL. The new pump lasted just about 1,000 miles and quit cold - no fluctuating about it. I'll be back on the road tomorrow, and will enjoy the western AZ/eastern CA transit - immensely, I'm sure. Lar. Do not Archive. Larry Bourne Palm Springs, CA Kolb Mk III - Vamoose N78LB www.gogittum.com ----- Original Message ----- From: "kuffel" Subject: Re: Kolb-List: Tailwheel > --> Kolb-List message posted by: kuffel > > Big Lar, > > < rudder and just let the tailwheel caster .. I have the heel brakes, so > differential braking will give me control in turns>> > > Strongly agree with all the negative comments. In a taildragger you > will sooner or later need every ounce of yaw control you can muster. > Attach the wheel, then for the rare times you need to turn sharper than > the wheel will allow after you have started the engine, just add power > (gently), full "down" elevator and perhaps inside brake. The tail will > easily skid the wheel sideways. > > Hope your Grand Tour was as much fun as it looked from here. > > Tom Kuffel > Whitefish, MT > Building Original FireStar > > ________________________________ Message 15 ____________________________________ Time: 06:10:30 PM PST US From: "Larry Bourne" Subject: Kolb-List: Trip --> Kolb-List message posted by: "Larry Bourne" More Lar B.S. Do not Archive. Since I spent that last message whining about my broken truck. let me say some of the good things..............and all about Kolb-ers. After a very nice 2 day visit with John Hauck in Alabama, I spent a day with Paul Petty in Mississippi and enjoyed watching his Hawg engine/redrive run. (and helping hold it down - it wants to GO) It's a-gonna be a dandy. Then, to Bill Herren in Lousy-ana and another good visit with nice folks, and even sampled a bit of deep fried Alligator. Richard Harris in Arkansas was next, and after checking out his very nice Mk III on his "sorta private" airstrip we went out on his boat, on his lake, and spotted Alligators and BIG Alligator Snapping Turtles. On to Ronnie Wehba in Sweetwater, Texas (yes, it really IS West Texas) and met so many people, I wonder how he keeps track. His UltraStar is a dandy - 1st one I've seen up close and I like it, then today while the truck was (and still is) in the shop in El Paso, Texas, Dave Rains took me on a flight out into the surrounding area and is more thoroughly knowledgeable about his area than almost anybody I've ever met. Good Trip ! ! ! This'll be the last, and it'll be a power run to home base now, and an ETA of Saturday afternoon. Thanks so much to everybody I've met and visited with over the last 2 months. The only bad thing about the trip (besides a broken truck) is that it wasn't long enuf. Couldn't do even a fraction of what was there to do, all the way around. Sorry-It's-Over Lar. Do not Archive. Larry Bourne Palm Springs, CA Kolb Mk III - Vamoose N78LB www.gogittum.com ________________________________ Message 16 ____________________________________ Time: 06:10:30 PM PST US From: "Larry Bourne" Subject: Re: Kolb-List: Tailwheel --> Kolb-List message posted by: "Larry Bourne" OK, that's what I was lookin' for................I'll get the tailwheel. See how good I am at saving money ?? :-) Muchas Grassy A................... Lar. Larry Bourne Palm Springs, CA Kolb Mk III - Vamoose N78LB www.gogittum.com ----- Original Message ----- From: "possums" Subject: Re: Kolb-List: Tailwheel > --> Kolb-List message posted by: possums > > At 06:47 PM 8/26/2003 -0700, you wrote: > > I did that once - off St. Simon's Island. Lost a spring while landing on a > sand > bar (on a stock Firestar wheel). > Just happened to notice it before I took off. Couldn't find the missing one > - so it seemed > only reasonable to take the other one off and let it caster, rather than > leave on just the one. > My next landing was on Jekyll Island and I lost almost complete control as > soon as my rear > wheel touched down - YEEFRIGGINHAAA. > Did a nice 45 degree turn across the grass and taxie/parking area. > If there had been any planes there I would have hit them. > My friend - sitting on the ground thought I was doing it on purpose and > thought it was hilarious. > Got one of them real $250 wheels now. > > > >--> Kolb-List message posted by: "Larry Bourne" > > > >I'm sure this has been gone over in the past, but can't remember > >specifics. I replaced my stock issue Kolb tailwheel with a "real" > >tailwheel. Don't remember which flavor, but it's the $140.00 one in the > >new Aircraft Spruce catalog. This is a dandy unit, but lacks the > >"breakaway" feature which would let it pivot all the way around. Being a > >cheapskate, I hate to spend another $250.00 on a proper one, so, here's my > >question..................can I get away with just eliminating the springs > >and chains from the rudder and just let the tailwheel caster on its' own > >back there ?? I have the heel brakes, so differential braking will give > >me control in turns, etc. Seems to me that airflow would keep it aligned > >properly while in flight, so it wouldn't veer when touching > >down. (??) I've asked several people during this trip, and got several > >answers/opinions. Whadda you guys think ?? Big Lar, > >expecting to be in El Paso, Texas by tomorrow (Wed) night. > > > >Larry Bourne > > ________________________________ Message 17 ____________________________________ Time: 06:10:30 PM PST US From: "Larry Bourne" Subject: Re: Kolb-List: Tailwheel --> Kolb-List message posted by: "Larry Bourne" OK, I hear your words, but what is the reasoning behind them ?? I got my tailwheel springs at Ace Hardware & Aircraft Supply................they're screendoor springs. The ones that came with my tailwheel belong on a Russian Antonov biplane - you could pick up the front of my truck with 'em. Pore ol' Lar..............broke down in El Paso, Texas. Larry Bourne Palm Springs, CA Kolb Mk III - Vamoose N78LB www.gogittum.com ----- Original Message ----- From: "Bob Bean" Subject: Re: Kolb-List: Tailwheel > --> Kolb-List message posted by: Bob Bean > > Lar, we'd all like to have the video cam rolling for that landing :) > -nice stiff springs are the route to go....I must check into the compression > method some on the list are using, where do I buy them? -BB do not archive > > Larry Bourne wrote: > > >--> Kolb-List message posted by: "Larry Bourne" > > > >I'm sure this has been gone over in the past, but can't remember specifics. I replaced my stock issue Kolb tailwheel with a "real" tailwheel. Don't remember which flavor, but it's the $140.00 one in the new Aircraft Spruce catalog. This is a dandy unit, but lacks the "breakaway" feature which would let it pivot all the way around. Being a cheapskate, I hate to spend another $250.00 on a proper one, so, here's my question..................can I get away with just eliminating the springs and chains from the rudder and just let the tailwheel caster on its' own back there ?? I have the heel brakes, so differential braking will give me control in turns, etc. Seems to me that airflow would keep it aligned properly while in flight, so it wouldn't veer when touching down. (??) I've asked several people during this trip, and got several answers/opinions. Whadda you guys think ?? Big Lar, expecting to be in El Paso, Texas by tomorrow (Wed) night. > > > >Larry Bourne > >Palm Springs, CA > >Kolb Mk III - Vamoose N78LB > >www.gogittum.com > > > > > > > > > > ________________________________ Message 18 ____________________________________ Time: 06:11:26 PM PST US From: Jack & Louise Hart Subject: Re: Kolb-List: Cleaning Up The FireFly Continues. --> Kolb-List message posted by: Jack & Louise Hart At 07:04 PM 8/28/03 -0500, you wrote: >--> Kolb-List message posted by: Jack & Louise Hart > List, I apologize for the double message. I thought I had lost the first one so I worked it up again, and then when I sent the second the first one I could not find went too. I live close to a University, and the students have come back and classes started this week. They have brought their computers, and viruses with them. I have had to install filters to shunt the unwanted messages to a "Virus Box". The box score follows: Tuesday - 47 mail undeliverable messages - 10 worms isolated. Wednesday - 43 mail undeliverable messages - 6 worms isolated. Today so far - 36 mail undeliverable messages 3 worms isolated. So life goes on the web. I will be gone for the weekend, and may be all will be quiet relative to worms and unwanted emails. Jack B. Hart FF004 Jackson, MO do not archive Jack & Louise Hart jbhart@ldd.net ________________________________ Message 19 ____________________________________ Time: 06:44:19 PM PST US From: "Larry Bourne" Subject: Re: Kolb-List: sprockets --> Kolb-List message posted by: "Larry Bourne" Yah, Bearings Inc. is good, and if they can't help, try Kaman Bearing. They've bailed me out many times. Lar. Larry Bourne Palm Springs, CA Kolb Mk III - Vamoose N78LB www.gogittum.com ----- Original Message ----- From: "Bob Bean" Subject: Re: Kolb-List: sprockets > --> Kolb-List message posted by: Bob Bean > > Paul, I have a Bearings Inc. catalog and they show 40 and 42 but no 41. > They sell Bruening, Dixie and King. There is type B (slip on) , QD and > taper-lock. -BB > > Paul Petty wrote: > > >--> Kolb-List message posted by: "Paul Petty" > > > >Kolbers, > >Anyone know where I might find a 41 tooth #40 Double stran sprocket besides WW Grainger? > > > >pp > >do not archive > > > > > > > > > > ________________________________ Message 20 ____________________________________ Time: 06:58:40 PM PST US From: "Larry Bourne" Subject: Re: Kolb-List: changes --> Kolb-List message posted by: "Larry Bourne" Yah, Sonex is neat, but have you tried to sit in one ?? I have - and I'll pass, thanks. Lar. Do not Archive. Larry Bourne Palm Springs, CA Kolb Mk III - Vamoose N78LB www.gogittum.com ----- Original Message ----- From: "Bob Bean" Subject: Kolb-List: changes > --> Kolb-List message posted by: Bob Bean > > Kirk/others looking for drag reduction: one big hurdle in air flow > improvement > is the break at the rear of the doors, the breeze must have a tough time > getting around there. I think brother Pike and maybe someone else put > VG's there. The door bulge actually helps the transition. An easy fix, > (if done BEFORE covering) would be to attach smoothing stringers > to that area to reconform the fabric shape. I stuck a little diagonal at > the bottom rear of the opening with a slight curve in the fabric. > -That's the nice thing about > "experimental", although if you want to go fast build a Sonex. -BB > do not archive > > ________________________________ Message 21 ____________________________________ Time: 07:17:18 PM PST US From: John Hauck Subject: Kolb-List: Break Down? --> Kolb-List message posted by: John Hauck > Pore ol' Lar..............broke down > in El Paso, Texas. Larry/All: Well, at least you made it to El Paso before you broke down???? What happened? Let me know bc please. Take care, john h DO NOT ARCHIVE ________________________________ Message 22 ____________________________________ Time: 08:03:36 PM PST US From: "Don Gherardini" Subject: Re: Kolb-List: changes --> Kolb-List message posted by: "Don Gherardini" you lay in em dont ya??..LOL do not archive http://www.geocities.com/dagger369th/my_firefly.htm Don Gherardini- FireFly 098