---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Tue 11/08/05: 25 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:33 AM - for sale (Ted Cowan) 2. 04:31 AM - Nose Cone - Duct Tape Time (Jack B. Hart) 3. 05:36 AM - Re: Building Kolb MK III XTRA !!! (James, Ken) 4. 06:19 AM - Mark III vs. Mark IIIx (kfackler) 5. 06:56 AM - Re: Kolb-List Digest: 6 Msgs - 11/07/05 (Cppjh@aol.com) 6. 07:06 AM - Re: Building Kolb MK III XTRA !!! (Richard Pike) 7. 07:34 AM - Mark III vs Mark III Xtra (Rex Rodebush) 8. 07:39 AM - Re: Building Kolb MK III XTRA !!! (woody) 9. 08:47 AM - Re: slow day - laugh a bit (ghaley@wt.net) 10. 08:59 AM - Re: Mark III vs Mark III Xtra (John Hauck) 11. 09:01 AM - Re: Mark III vs. Mark IIIx (John Hauck) 12. 09:07 AM - Re: Building Kolb MK III XTRA !!! (John Hauck) 13. 09:27 AM - Re: Mark III vs. Mark IIIx (Michael Bigelow) 14. 09:40 AM - Re: Mark III vs Mark III Xtra (Richard & Martha Neilsen) 15. 10:11 AM - Mark III vs Mark III Xtra (Rex Rodebush) 16. 10:42 AM - Re: Building Kolb MK III XTRA !!! (Richard Pike) 17. 12:21 PM - Re: Building Kolb MK III XTRA !!!/Difference in Performance of Two and Three Blad Props (John Hauck) 18. 01:30 PM - Re: Building Kolb MK III XTRA !!! (Jim Baker) 19. 03:24 PM - flaps (Paul Petty) 20. 03:32 PM - FS II Weight and Balance (Lanny Fetterman) 21. 04:40 PM - legs (robert bean) 22. 04:48 PM - Re: Building Kolb MK III XTRA !!!/Difference in Performance of Two and Three Blad Props (Richard & Martha Neilsen) 23. 05:47 PM - FLAPS ??? Kolb MK III XTRA .... (Michael Bigelow) 24. 08:33 PM - Noise Reduction (Richard & Martha Neilsen) 25. 11:47 PM - Re: FS II Weight and Balance (Silver Fern Microlights Ltd) ________________________________ Message 1 _____________________________________ Time: 03:33:52 AM PST US From: Ted Cowan Subject: Kolb-List: for sale --> Kolb-List message posted by: Ted Cowan Here is a great deal for someone that doesnt want to go thru the agony of building their own. The two guys who built this are true profectionists and it is a beautiful plane. For info go to: www.homestead.com/southernflyers and click on "for Sale". Ted Cowan. ________________________________ Message 2 _____________________________________ Time: 04:31:50 AM PST US From: "Jack B. Hart" Subject: Kolb-List: Nose Cone - Duct Tape Time --> Kolb-List message posted by: "Jack B. Hart" FireFlyers & Kolbers, At the beginning of its 26th flight, I nosed the FireFly over on my first attempt to takeoff from a grass strip on December 19, 1999. After flight # 573 today, I did it again. Landed in a direct cross wind with no problem, but as I tried to make a 180 on the runway I got off into long grass beside the runway. My first mistake was that I turned into the cross wind. Once the right main rolled into the grass and the wind struck the right side of the vertical fin and rudder there was not enough grip by the tail wheel to bring the FireFly the rest of the way around. My second mistake was that I tried to move on out into the grass to bring it around and I put it on its nose with too much throttle. The first nose over cracked the bottom of the nose cone but it was not noticeable. This episode left noticeable cracks and they will have to be repaired. So until it gets warm enough to work with fiber glass, the FireFly will have duct tape on its nose. The plus is that I nosed over a pusher, and so I do not have the added expense of new propeller blades. Jack B. Hart FF004 Winchester, IN ________________________________ Message 3 _____________________________________ Time: 05:36:58 AM PST US From: "James, Ken" Subject: RE: Kolb-List: Building Kolb MK III XTRA !!! --> Kolb-List message posted by: "James, Ken" Welcome to the group .. I'm currently building a Mk III X at much much slower pace (like watching paint dry )So any mods you make or problems you please put the info up for all too see, and remember take lots of pics we all like to see pics :-) Ken James -----Original Message----- From: Michael Bigelow [mailto:orcabonita@hotmail.com] Subject: Kolb-List: Building Kolb MK III XTRA !!! --> Kolb-List message posted by: "Michael Bigelow" Hi, My name is Mike Bigelow and I am finally getting back into ultralights after a long absence :) I had one of the first weight shift Quicksilvers back in high school with a single cylinder 12 HP engine and I had a blast flying it (my first solo). Ever since then I have always dreamed of getting another ultralight... After 24 years of flying other less fun airplanes I have finally ordered the kits for the MK III Xtra. I am having the guy by the factory help me build it at his shop, so that way its done in a couple months and all the building details are taken care of. I am putting a Rotax 912-S on the plane, ballistic chute, dual controls, all the factory options, etc... I have been reading your list for months now and have gotten lots of good information, but I still have some questions. Is there anything else I should do on this plane that is not covered in the factory options ?? =20 I don't care to much for the mechanical trim system of the elevator and would like a electric aerodynamic trim tab instead, has anyone ever done this ? I would also like more than 10 gallons of fuel capacity, is there a bigger tank available for this plane ? I have also heard some good things about the Kiev Hot prop, so right now its a toss-up between that or the Warp Drive prop.... I would like to get this plane done perfect the first time, so any advice you guys have about any part of this project would be greatly appreciated. Thanks Michael A. Bigelow IMPORTANT/CONFIDENTIAL: This communication is intended solely for the use of the individual or entity to which it is addressed. This e-mail contains information from the Berks Career & Technology Center that may be privileged, confidential, and exempt from disclosure under applicable law. If the reader of this communication is not the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately and permanently delete this message including all attachments. Thank you. ________________________________ Message 4 _____________________________________ Time: 06:19:50 AM PST US From: "kfackler" Subject: Kolb-List: Mark III vs. Mark IIIx --> Kolb-List message posted by: "kfackler" I would like to seek some input from those of you who had the opportunity when selecting your airplane to choose between a Mark III and the Mark III Xtra. Which one did you choose, and why? I realize that it's probably not possible to answer in a sound byte. Having said that, what were the two or three most compelling reasons for your decision? -Ken Fackler Kolb Mark II / A722KWF Rochester MI ________________________________ Message 5 _____________________________________ Time: 06:56:32 AM PST US From: Cppjh@aol.com Subject: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 11/07/05 --> Kolb-List message posted by: Cppjh@aol.com I am just a lurker, but I enjoy all the tips and hope I remember if I ever get started on my own plane. Thanks Pete ________________________________ Message 6 _____________________________________ Time: 07:06:49 AM PST US From: Richard Pike Subject: Re: Kolb-List: Building Kolb MK III XTRA !!! --> Kolb-List message posted by: Richard Pike I have tried several props on my MKIII, Ivo 3-blade, 2-blade, Warp 3-blade, Kiev Hot Prop - I have found the best performance (on a 582, 2.58:1 B box) with an Ivo 2 blade 68" prop. I have not tried a Warp Drive Taper prop, but would love to try a 68" 2 blade and see how it stacks up performance wise against the Ivo. (Anybody want to loan me one for a week?) I tried a Kiev Hot Prop 3 blade 66" - which is the recommended size for this engine/gearbox, but it did not do as well as the Ivo, save your money. (I posted the results to this list, they ought to be in the archives) If your main priority is the best overall performance, go with a two blade prop. If your main priority is smoothness rather than performance, go with a three blade prop. If your main priority is a prop that survives parts of your airplane coming off and going through it, get a Warp Drive. Richard Pike MKIII N420P (420ldPoops) At 02:13 AM 11/8/05 -0500, you wrote: >--> Kolb-List message posted by: "Michael Bigelow" > >Hi, > >My name is Mike Bigelow and I am finally getting back into ultralights after >a long absence :) I had one of the first weight shift Quicksilvers back in >high school with a single cylinder 12 HP engine and I had a blast flying it >(my first solo). Ever since then I have always dreamed of getting another >ultralight... After 24 years of flying other less fun airplanes I have >finally ordered the kits for the MK III Xtra. I am having the guy by the >factory help me build it at his shop, so that way its done in a couple >months and all the building details are taken care of. I am putting a Rotax >912-S on the plane, ballistic chute, dual controls, all the factory options, >etc... I have been reading your list for months now and have gotten lots >of good information, but I still have some questions. Is there anything >else I should do on this plane that is not covered in the factory options ?? > I don't care to much for the mechanical trim system of the elevator and >would like a electric aerodynamic trim tab instead, has anyone ever done >this ? I would also like more than 10 gallons of fuel capacity, is there a >bigger tank available for this plane ? I have also heard some good things >about the Kiev Hot prop, so right now its a toss-up between that or the Warp >Drive prop.... I would like to get this plane done perfect the first time, >so any advice you guys have about any part of this project would be greatly >appreciated. > >Thanks >Michael A. Bigelow > > ________________________________ Message 7 _____________________________________ Time: 07:34:58 AM PST US Subject: Kolb-List: Mark III vs Mark III Xtra From: "Rex Rodebush" --> Kolb-List message posted by: "Rex Rodebush" Main reason for me is that I can sit with my feet straight in the Xtra. Sitting angled in is hard on the old lower back. --> Kolb-List message posted by: "kfackler" > I would like to seek some input from those of you who had the opportunity when selecting your airplane to choose between a Mark III and the Mark III Xtra ________________________________ Message 8 _____________________________________ Time: 07:39:17 AM PST US From: "woody" Subject: Re: Kolb-List: Building Kolb MK III XTRA !!! --> Kolb-List message posted by: "woody" Check the archives for Padre Pikes aileron control rod mod and for my tail wire mod. The original Twinstar had an aerodynamic trim system built onto the elevator in the form of a small flap that was cable activated. Works good.. ----- Original Message ----- From: "Michael Bigelow" Subject: Kolb-List: Building Kolb MK III XTRA !!! > --> Kolb-List message posted by: "Michael Bigelow" > > Hi, > > My name is Mike Bigelow and I am finally getting back into ultralights after > a long absence :) I had one of the first weight shift Quicksilvers back in > high school with a single cylinder 12 HP engine and I had a blast flying it > (my first solo). Ever since then I have always dreamed of getting another > ultralight... After 24 years of flying other less fun airplanes I have > finally ordered the kits for the MK III Xtra. I am having the guy by the > factory help me build it at his shop, so that way its done in a couple > months and all the building details are taken care of. I am putting a Rotax > 912-S on the plane, ballistic chute, dual controls, all the factory options, > etc... I have been reading your list for months now and have gotten lots > of good information, but I still have some questions. Is there anything > else I should do on this plane that is not covered in the factory options ?? > I don't care to much for the mechanical trim system of the elevator and > would like a electric aerodynamic trim tab instead, has anyone ever done > this ? I would also like more than 10 gallons of fuel capacity, is there a > bigger tank available for this plane ? I have also heard some good things > about the Kiev Hot prop, so right now its a toss-up between that or the Warp > Drive prop.... I would like to get this plane done perfect the first time, > so any advice you guys have about any part of this project would be greatly > appreciated. > > Thanks > Michael A. Bigelow > > > -- > > ________________________________ Message 9 _____________________________________ Time: 08:47:16 AM PST US From: ghaley@wt.net Subject: Re: Kolb-List: slow day - laugh a bit --> Kolb-List message posted by: ghaley@wt.net Woody, I forwarded this to my wife and this is her response: "AND...the airplanes don't mind sleeping in the cold hanger with their pilots." Quoting woody : > --> Kolb-List message posted by: "woody" > > The list is kind of slow so I thought it would be a good time to add some > humour. This was recentley sent to me and I found it quite funny. > Unfortunately the girlfriend didn't. Guess its a pilot thing. > > > Airplanes usually kill you quickly; a woman takes her time. > >Airplanes can be turned on by a flick of a switch. > >Airplanes don't get mad if you do a "touch and go." > >Airplanes don't object to a pre-flight inspection. > >Airplanes come with a manual to explain their operation. > >Airplanes have strict weight and balance limitations. > >Airplanes can be flown at any time of the month. > >Airplanes don't come with in-laws. > >Airplanes don't care about how many other airplanes you've flown > >before. > >Airplanes and pilots both arrive at the same time. > >Airplanes don't mind if you look at other airplanes. > >Airplanes don't mind if you buy airplane magazines. > >Airplanes expect to be tied down. > >Airplanes don't comment on your piloting skills. > >Airplanes don't whine unless something is really wrong. > >However, when airplanes go quiet, just like women, it's usually not > >good. > > > > > > > ________________________________ Message 10 ____________________________________ Time: 08:59:59 AM PST US From: "John Hauck" Subject: Re: Kolb-List: Mark III vs Mark III Xtra --> Kolb-List message posted by: "John Hauck" Xtra. | Sitting angled in is hard on the old lower back. | "Rex Rodebush" Rex/Gang: Been flying my MKIII and several others since 1992. Have accumulated more than 2,400 hours on my airframe alone. The only time I think about where my legs are pointing is when someone makes comments about sitting angled. I am sure I am sitting angled, but never has bothered me. I prefer the MKIIIc over the Xtra, based on limited flight experience in several iterations of the newer model. Maybe I am a little prejudice because I have spent so much time and flown so many places in my old MKIIIc. I do prefer my 20 and 40 degree flaps over none at all or flaperons. I consider them to be a major safety factor, enabling me to make more survivable landings in much smaller spaces. These flaps are used on most all landings and have been proven to be very beneficial during actual engine out/emergency situations, requiring landing in spaces not meant for MKIIIc's to land in. I think the smaller nose cone is more aerodynamic than the broad flat nose on the Xtra. Guess I am happy with what I have. My MKIIIc provides me with all my aviating needs and desires. Would like to climb and cruise right up there with John W and his 912S powered Kolbra, but for now and the near future will be happy hauling my stuff a little slower in the comfort of the side by side two place over the tandem seating in the Kolbra. May be possible to get cruise up another 10 mph in my MKIIIc, but would take a lot of work cleaning up several areas that are now creating a lot of drag. Miss P'fer has always cruised at 80 to 85 mph powered with the 582, 912UL, and 912ULS. Take care, john h MKIIIc/912ULS Titus, Alabama ________________________________ Message 11 ____________________________________ Time: 09:01:07 AM PST US From: "John Hauck" Subject: Re: Kolb-List: Mark III vs. Mark IIIx --> Kolb-List message posted by: "John Hauck" | -Ken Fackler Ken F/Gang: It was the only two place aircraft Kolb produced in 1991. ;-) john h DO NOT ARCHIVE ________________________________ Message 12 ____________________________________ Time: 09:07:46 AM PST US From: "John Hauck" Subject: Re: Kolb-List: Building Kolb MK III XTRA !!! --> Kolb-List message posted by: "John Hauck" two blade | prop. If your main priority is smoothness rather than performance, go with | a three blade prop. If your main priority is a prop that survives parts of | your airplane coming off and going through it, get a Warp Drive. | | Richard Pike Richard P/Gang: Does the above mean I have been flying all these hours enjoying smoothness of my Warp Drive 3 blade taper tip 72" prop, rather than performance? Or does it mean that those props and combos work the way you describe on your own particular Kolb MKIIIc which has been changes somewhat in the center section/cabin area? I haven't tried experiementing between the two and three blade Warp Drive props on my airplane. Only the three blade. Many years ago I did do a lot of testing for Warp Drive using my original Firestar. Was quite obvious during testing that the two blade Culver wooden prop outperformed the Warp. However, later on the MKIII I tested the square tip and taper tip three blade Warp. The taper tip blades performed better in cruise speed. Both were about equal in climb. Take care, john h ________________________________ Message 13 ____________________________________ Time: 09:27:36 AM PST US From: "Michael Bigelow" Subject: RE: Kolb-List: Mark III vs. Mark IIIx --> Kolb-List message posted by: "Michael Bigelow" The MK III XTRA is faster, with more room inside, better visibility out the front (more glass), and it is a much nicer looking airplane. It seems to me that the XTRA is better in every way with no downside... Mike ________________________________ Message 14 ____________________________________ Time: 09:40:43 AM PST US From: "Richard & Martha Neilsen" Subject: Re: Kolb-List: Mark III vs Mark III Xtra --> Kolb-List message posted by: "Richard & Martha Neilsen" I have a MKIIIc and bought it because that was the only one available at the time. My thoughts on the differences are the Extra is faster and gives you more room for your feet, the potential for a larger instrument panel, and the panel is closer. The down side of the Extra is they don't come standard with flaps but can be ordered and there are some who believe that there isn't enough horizontal stabilizer area because of the wide flat nose. The classic is 10 MPH slower and the instrument panel is too far away to reach when strapped in. I also don't notice the foot angle except that I have better forward and down visibility. If I were to choose now I would likely pick the Extra but get the flap option (no question here), make a larger horizontal stabilizer and likely the larger panel. Check with Jim Clayton he is building one with these changes and I think 1-3 axis electric trim. Rick Neilsen Redrive VW powered MKIIIc ----- Original Message ----- From: "John Hauck" Subject: Re: Kolb-List: Mark III vs Mark III Xtra > --> Kolb-List message posted by: "John Hauck" > > Xtra. ________________________________ Message 15 ____________________________________ Time: 10:11:10 AM PST US Subject: Kolb-List: Mark III vs Mark III Xtra From: "Rex Rodebush" --> Kolb-List message posted by: "Rex Rodebush" I agree with John about the flaps. My Xtra was one of the first and the standard flaps and ailerons were included. I think they still might be available as an option and should be considered if they are. ________________________________ Message 16 ____________________________________ Time: 10:42:29 AM PST US From: Richard Pike Subject: Re: Kolb-List: Building Kolb MK III XTRA !!! --> Kolb-List message posted by: Richard Pike This is a topic that several friends and I have kicked around in our EAA chapter. Some of those friends have experimented with two vs. three blade props on their Skylanes, etc, and their consensus is that two blades give better overall performance, and here is the rationale: For a given amount of horsepower - let's say we have 80 HP, that is a good compromise between several of the motors we usually use - then we have to decide how we are going to apply it, or in this case, divide it up. If we have a prop of any given diameter, if it is a two blade prop, then we will end up with a certain pitch. If we have a three blade prop of the same diameter, then it will have to have less pitch, because now we are dividing the available power by three blades instead of two. Which means that we will have to use less pitch so that the engine can still reach it's power peak. Now we have a three blade prop that at max cruise speed will have a lower pitch than the two blade prop of the same diameter. Now we throw in a variable - if you always fly at your max cruise speed, then you won't notice much difference in anything. But if you sometimes want to fly at speeds less than max cruise, then the lesser pitch of the three blade prop will not allow you to fly at rpm's substantially lower than max cruise, the prop still needs a bunch of rpm's because it has no "spread" it is a shallow pitch prop, optimized for one target speed. With a three blade prop, throttling back brings your airspeed down at a faster rate than a two blade prop does per rpm. Or to look at it another way, flying slowly still requires a lot of rpm's. If you pitch either a two or three blade prop for full throttle level flight just touching the tach red line, - let's say you max out at 90 - when you slow down to 60, the two blade prop/engine combo will be turning slower than the three blade prop/engine combo. You can't slow down the three blade engine/prop combo as much. So while it might not have much effect when optimized for max cruise, it gives up a lot of efficiency (unnecessarily high rpm's) at anything less than max cruise. On the other hand, you usually get better acceleration out of the hole with a three blade prop, because it is lower pitched, like a climb prop. Example: Yesterday I took the FSII up for a while, it was smooth as glass out, and I was not going anywhere, just looking at fall colors. With the 582 swinging a 68" two blade prop, I could easily maintain altitude and 55mph at 4350 rpm, and I found it a very mellow and delightful experience. Since at that rpm, the 582 was burning less than three GPH, and was comparatively very quiet, it's performance was ideal. With a two blade prop, which is using more pitch than a same diameter three blade for a given rpm, the prop has more "spread," or effective useful range, not only does it have more pitch at full throttle flight, it still has more pitch at all speeds, which is sort of like keeping your car in high gear at all rpm's, while a three blade is like being in second gear all the time. Fortunately, our Kolb's accelerate and climb good enough that even a two blade prop (high gear) doesn't hurt us much. So I guess that in your case John, since you apparently typically run at high cruise - from what I glean from your posts - it probably is six of one, half a dozen of another. Of course, if you have the tip clearance to give it a try, a two blade Warp Drive prop a couple inches longer than your three blade might give even more climb. (Like you need it! ) But for those of us not going anywhere in particular, but just going up to poot around - like us Old Poops do - then a two blade gives better overall performance. Obviously this does not factor in having an in-flight adjustable prop, that is outside my experience. No comments or opinions there. Might change everything...? Richard Pike MKIII N420P (420ldPoops) At 11:08 AM 11/8/05 -0600, you wrote: >--> Kolb-List message posted by: "John Hauck" > > | If your main priority is the best overall performance, go with a >two blade >| prop. If your main priority is smoothness rather than performance, >go with >| a three blade prop. If your main priority is a prop that survives >parts of >| your airplane coming off and going through it, get a Warp Drive. >| >| Richard Pike > >Richard P/Gang: > >Does the above mean I have been flying all these hours enjoying >smoothness of my Warp Drive 3 blade taper tip 72" prop, rather than >performance? > >Or does it mean that those props and combos work the way you describe >on your own particular Kolb MKIIIc which has been changes somewhat in >the center section/cabin area? > >I haven't tried experiementing between the two and three blade Warp >Drive props on my airplane. Only the three blade. > >Many years ago I did do a lot of testing for Warp Drive using my >original Firestar. Was quite obvious during testing that the two >blade Culver wooden prop outperformed the Warp. However, later on the >MKIII I tested the square tip and taper tip three blade Warp. The >taper tip blades performed better in cruise speed. Both were about >equal in climb. > >Take care, > >john h > > ________________________________ Message 17 ____________________________________ Time: 12:21:21 PM PST US From: "John Hauck" Subject: Re: Kolb-List: Building Kolb MK III XTRA !!!/Difference in Performance of Two and Three Blad Props --> Kolb-List message posted by: "John Hauck" run at | high cruise - from what I glean from your posts - it probably is six of | one, half a dozen of another. | | | | Richard Pike Richard P/Gang: I cruise the MKIII/912ULS at what I would call normal cruise for the 912UL and 912ULS, 5,000 rpm, which is about 75% power. Gives me 80 to 85 mph. High cruise for either model 912 is max continuous, or 5,500 rpm. I prop the airplane to just bump the red line of 5,500 rpm WOT, straight and level flight. Gives me the best of both climb and cruise. Recently I have made some long cross country flights at 4,000 rpm and 65 mph. My fuel burn was 3.5 instead of 5.0 gph. Can't keep CHT and eng oil temps in the green at low power settings. I don't understand your explanation of the difference in a two or three blad prop, but that is ok. I am happy with the set up I have. I haven't experimented with a two blade Warp, so have nothing to compare my present performance with. Maybe one of these days Warp will let me do some two blade testing. I might be surprised, and maybe I won't be. john h ________________________________ Message 18 ____________________________________ Time: 01:30:22 PM PST US From: "Jim Baker" Subject: Re: Kolb-List: Building Kolb MK III XTRA !!! --> Kolb-List message posted by: "Jim Baker" > their consensus is that > two blades give better overall performance Borrowed from Hartzell.... A two-blade propeller is capable of achieving a higher efficiency than a three-blade propeller , but at the same time it uses less power and produces less thrust. If you were to operate a propeller at a lower power setting than that for which the efficiency is at its peak, you would have a lower thrust and also a lower efficiency. Likewise if you operate at a higher power setting, the thrust will be higher but the efficiency is lower there also. There is therefore an optimum power setting for each propeller where its efficiency will be highest. If conditions require more thrust than is available from this optimum power setting, then the power must be increased and prop efficiency begins to fall off from its peak value. There reaches a point where a propeller operating at a power higher than that which results in peak efficiency has the same efficiency as a prop with more blades operating at less-than- optimum power. Further increases in power favor the performance of the propeller with more blades. This is because the propeller with fewer blades is no longer operating at its peak efficiency. Jim Baker 580.788.2779 '71 SV, 492TC Elmore City, OK ________________________________ Message 19 ____________________________________ Time: 03:24:30 PM PST US From: "Paul Petty" Subject: Kolb-List: flaps required 4.6, BAYES_44 -0.00, HTML_60_70 0.11, HTML_MESSAGE 0.25) --> Kolb-List message posted by: "Paul Petty" Hey gang, Getting her done! Enjoy http://www.c-gate.net/~ppetty/photos/PB060007.JPG http://www.c-gate.net/~ppetty/photos/PB060011.JPG http://www.c-gate.net/~ppetty/photos/PB060012.JPG http://www.c-gate.net/~ppetty/photos/PB060016.JPG http://www.c-gate.net/~ppetty/photos/PB060017.JPG Back to work! Paul Petty Building Ms. Dixie Kolbra/912UL/Warp do not archive ________________________________ Message 20 ____________________________________ Time: 03:32:32 PM PST US From: Lanny Fetterman Subject: Kolb-List: FS II Weight and Balance --> Kolb-List message posted by: Lanny Fetterman Hi All, I am working on the W&B form for my FS II. Since the leading edge of the wing is the datum, and the pilot sits in front of the leading edge, is the arm a negative number? Thanks for the help. Lanny Fetterman N598LF Do not archive ________________________________ Message 21 ____________________________________ Time: 04:40:03 PM PST US From: robert bean Subject: Kolb-List: legs --> Kolb-List message posted by: robert bean If anyone has a set of TNK's optional steel legs installed on their MkIIIc I would appreciate a close up photo or two. -Thanks, BB do not archive ________________________________ Message 22 ____________________________________ Time: 04:48:59 PM PST US From: "Richard & Martha Neilsen" Subject: Re: Kolb-List: Building Kolb MK III XTRA !!!/Difference in Performance of Two and Three Blad Props --> Kolb-List message posted by: "Richard & Martha Neilsen" John It must be nice. I asked Power Fin to sponsor a test of their two bladed hub on my airplane. They said sure send me $150 I will send you a two bladed prop hub and you can keep it as long as you want. I wasn't at all happy with the rough running two bladed prop and it perform as well. I probably need to run a larger two blade prop to get more performance. Rick Neilsen Redrive VW powered MKIIIc ----- Original Message ----- From: "John Hauck"> Maybe one of these days Warp > will let me do some two blade testing. I might be surprised, and > maybe I won't be. > > john h > > ________________________________ Message 23 ____________________________________ Time: 05:47:29 PM PST US From: "Michael Bigelow" Subject: Kolb-List: FLAPS ??? Kolb MK III XTRA .... --> Kolb-List message posted by: "Michael Bigelow" Thanks for everyones input on my MK III XTRA project. One very important thing that someone mentioned is flaps... Which options are available on the XTRA and which is the best one ? I definately want flaps if possible, but are the flaperons better on the kolb than the normal flaps on the inside and ailerons on the outside setup ? MIKE... ________________________________ Message 24 ____________________________________ Time: 08:33:42 PM PST US From: "Richard & Martha Neilsen" Subject: Kolb-List: Noise Reduction --> Kolb-List message posted by: "Richard & Martha Neilsen" I have been dealing with a noisy airplane since I lowered the thrust line with my new engine mount. For most of the summer I have been flying with ear plugs under my headphones. This has cut the noise but caused communication problems. I have had some success in reducing the noise but not enough. I have been considering updated noise canceling headphones but they are expensive. Yesterday I bought some cheep noise reduction in you ear phones ($20). They work! They cut the noise and boy can I hear the radio. I bought Radio Shack ear phones they are really Koss "sparkplugs" they aren't that great but they prove that the concept works. The only problem I'm having is only one earphone works. I need to find a mono to stereo adapter plug. If you have a good headset but they don't reduce the noise enough you might want to consider these ear bud style ear phones for use under the headphone. They are designed to reduce the out side noise level so that you can hear music. Some of them have noise canceling cercuittry. Sony makes a line of reasonable priced units that I'm going to try next. The Sony MDR-NC11 units are $50-150 depending on where you buy them and have noise canceling, Sony MDR-51LP or MDR-EX71SL are in the $30-40 range. If you want to spend more you can pay $400 plus. Richard Neilsen Redrive VW powered MKIIIc ________________________________ Message 25 ____________________________________ Time: 11:47:51 PM PST US From: "Silver Fern Microlights Ltd" Subject: Re: Kolb-List: FS II Weight and Balance --> Kolb-List message posted by: "Silver Fern Microlights Ltd" Hi Lanny, Yes the value needs to be a negative one. Mike Xtra/Jab 2200 110 hrs ----- Original Message ----- From: "Lanny Fetterman" Subject: Kolb-List: FS II Weight and Balance > --> Kolb-List message posted by: Lanny Fetterman > > Hi All, I am working on the W&B form for my FS II. Since the leading edge > of the wing is the datum, and the pilot sits in front of the leading edge, > is the arm a negative number? Thanks for the help. Lanny Fetterman > N598LF Do not archive > > >