---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Mon 06/22/09: 12 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:42 AM - Re: Father's Day Flight (Jack B. Hart) 2. 08:06 AM - Re: Thank you (JetPilot) 3. 08:19 AM - Re: Cayuna 430 and Pterodactyl (Ron @ KFHU) 4. 12:27 PM - Re: Cayuna 430 and Pterodactyl (JetPilot) 5. 01:04 PM - Re: Cayuna 430 and Pterodactyl (lucien) 6. 02:53 PM - Re: Re: Cayuna 430 and Pterodactyl (possums) 7. 04:07 PM - Re: Re: Thank you (John Hauck) 8. 05:42 PM - Re: Thank you (planecrazzzy) 9. 06:19 PM - Re: Re: Thank you (elleryweld@aol.com) 10. 08:25 PM - Re: Re: Thank you (Richard & Martha Neilsen) 11. 08:49 PM - Re: Re: Cayuna 430 and Pterodactyl (Ron @ KFHU) 12. 08:49 PM - Re: Re: Thank you (John Hauck) ________________________________ Message 1 _____________________________________ Time: 02:42:11 AM PST US From: "Jack B. Hart" Subject: Re: Kolb-List: Father's Day Flight At 09:59 PM 6/21/09 -0400, you wrote: > >Jack, Is that 26.8 gallon per minute, or gallon per mile? > You got it figured out. I must have hit an inversion. Jack B. Hart FF004 Winchester, IN ________________________________ Message 2 _____________________________________ Time: 08:06:53 AM PST US Subject: Kolb-List: Re: Thank you From: "JetPilot" Dale, Your accident would not have happened if you had VG's on your Firestar. The difference VG's make on a Kolb are nothing short of miraculous, especially in the conditions you describe. On my MK III Xtra, I get a full 10 MPH reduction on stall, but that is not the best part. Low speed handling and response is just amazing. I used to feel like the plane was mushing and that I was on the edge of control if I got much below 60 MPH in the pattern, now I can do turns at 40 MPH, and it feels perfect. At a weight of 1000 pounds I can do power off approaches holding 50 MPH and get a greaser landing out of it, never touching the power. None of this was possible before my plane had VG's. Your practicing for engine failures is a good thing, you will be ready and know how to react properly when the time comes. Having a plane that is much more capable of flying well and landing at slower speeds will also improve your safety by a large margin if your engine ever quits. Mike -------- "NO FEAR" - If you have no fear you did not go as fast as you could have !!! Kolb MK-III Xtra, 912-S Read this topic online here: http://forums.matronics.com/viewtopic.php?p=249527#249527 ________________________________ Message 3 _____________________________________ Time: 08:19:16 AM PST US From: "Ron @ KFHU" Subject: Re: Kolb-List: Cayuna 430 and Pterodactyl Sorry that was a Rotax, 447 first time ever with one of them, I flew a buddy's 2 seater MX with a 582 (?) and it too was pretty loud, most likely its the muffler design, I would guess. Its okay with a helmet and ear plugs. ---- chris davis wrote: ============ Is that noisy engine a 440 Kawsaki or a Rotax 447? chris ________________________________ From: "Ron @ KFHU" Sent: Sunday, June 21, 2009 10:28:26 PM Subject: Re: Kolb-List: Cayuna 430 and Pterodactyl thanks The one I have is basically a loaner. It was in pieces in a shop got it assembled and the Cuyuna fired up after some tugging on the cord. It must have been inop for about 5 years or more. Yesterday I test flew a Rotax 440 on an Eipper MX. What a racket it makes. I can fly on the Cuyuna at low power without ear plugs, not so with the Rotax. That alone is enough for me to favor the Cuyuna motor. Any other advice for flying the duck? ======================== ---- Denny Rowe wrote: ============ > Can anyone give me the estimated or actual fuel burn with a Cuyuna 430, > and the usual cruise speed for a Pterodactyl the one with the canard in > front of it. > > Same thing with a Rotax 440 and Eipper MX the single surface old vintage > type? > > Thanks Ron, The Dac Ascender with the 430 Cuyuna burns 2 to 2.5 gph max, likes to cruise from 40 to 50 mph. I sold my old Pterodactyl to a friend that still flies it with a J-bird supplied 440 Kawasaki and belt drive, he burns about 1.5 gph at 55mph+ but he clipped three feet off each wing. The MX will burn quite a bit more and go a lot s -Matt Dralle, L======= -- kugelair.com ________________________________ Message 4 _____________________________________ Time: 12:27:05 PM PST US Subject: Kolb-List: Re: Cayuna 430 and Pterodactyl From: "JetPilot" captainron1(at)cox.net wrote: > Yesterday I test flew a Rotax 440 on an Eipper MX. What a racket it makes. I can fly on the Cuyuna at low power without ear plugs, not so with the Rotax. That alone is enough for me to favor the Cuyuna motor. > > Any other advice for flying the duck? > > The Rotax 447 is a far Superior motor to the Cuyuna. I like quiet motors, but I am not convinced that the cuyuna is quieter than the Rotax 447. You tried a Rotax on a Qucksilver, a horrible and draggy airplane that takes a huge amount of power to keep it in the air. It may be that the airplane and its installation has as much an impact on the noise as the motor itself. Either way, I would not fly with an such unreliable and touchy motor as the Cuyuna , noise or not... Not having in flight engine failures is far more important than noise, and I have my doubts as to weather this is even the case or not. Mike -------- "NO FEAR" - If you have no fear you did not go as fast as you could have !!! Kolb MK-III Xtra, 912-S Read this topic online here: http://forums.matronics.com/viewtopic.php?p=249571#249571 ________________________________ Message 5 _____________________________________ Time: 01:04:46 PM PST US Subject: Kolb-List: Re: Cayuna 430 and Pterodactyl From: "lucien" JetPilot wrote: > > captainron1(at)cox.net wrote: > > > > > > > The Rotax 447 is a far Superior motor to the Cuyuna. I like quiet motors, but I am not convinced that the cuyuna is quieter than the Rotax 447. You tried a Rotax on a Qucksilver, a horrible and draggy airplane that takes a huge amount of power to keep it in the air. It may be that the airplane and its installation has as much an impact on the noise as the motor itself. > > Either way, I would not fly with an such unreliable and touchy motor as the Cuyuna , noise or not... Not having in flight engine failures is far more important than noise, and I have my doubts as to weather this is even the case or not. > > Mike One of the problems with the Cuyuna, according to a guy who's flown it a bunch, is the axial cooling. The cooling air for the rear cylinder goes through the fins of the front one first, making the rear cylinder tend to run hot. He said in continuous high power operation this could shorten the life of the rear cylinder quite a bit or even lead to overheating. The Rotax aircooled motors of course don't suffer from this as they use well-designed shrouds that cool the cylinders more or less equally (ironically, it tends to be the PTO cylinder that runs cooler). The 447 is my other favorite 2-stroke besides the 503, as it's the simplest of the lot and still runs reliably (long as you wire it right like I didn't do one time). It's only problem is it tends to run hotter than the 503, being a suped-up 377 with not a whole lot of cooling fin area. But it can still do continuous high power..... just runs a little warm doing it up in the 350F range..... LS -------- LS Titan II SS Read this topic online here: http://forums.matronics.com/viewtopic.php?p=249576#249576 ________________________________ Message 6 _____________________________________ Time: 02:53:56 PM PST US From: possums Subject: Re: Kolb-List: Re: Cayuna 430 and Pterodactyl At 04:04 PM 6/22/2009, you wrote: > > >One of the problems with the Cuyuna, according to a guy who's flown >it a bunch, is the axial cooling. The cooling air for the rear >cylinder goes through the fins of the front one first, making the >rear cylinder tend to run hot. He said in continuous high power >operation this could shorten the life of the rear cylinder quite a >bit or even lead to overheating. We used to cut a couple of the fins off the front cylinder to fix the problem. ________________________________ Message 7 _____________________________________ Time: 04:07:45 PM PST US From: "John Hauck" Subject: Re: Kolb-List: Re: Thank you > Your accident would not have happened if you had VG's on your Firestar. The difference VG's make on a Kolb are nothing short of miraculous, especially in the conditions you describe. > > Mike No kidding! How did you come up with this profound statement? john h mkIII ________________________________ Message 8 _____________________________________ Time: 05:42:48 PM PST US Subject: Kolb-List: Re: Thank you From: "planecrazzzy" Probably pulled it out of that "Dark" place ... He pulls alot of answers and comments out of there... .. .. Gotta Fly... Mike & "Jaz" the Flying Dog .. .. .. -------- .. .. .. .. .. Do Not Archive Read this topic online here: http://forums.matronics.com/viewtopic.php?p=249600#249600 ________________________________ Message 9 _____________________________________ Time: 06:19:42 PM PST US Subject: Re: Kolb-List: Re: Thank you From: elleryweld@aol.com you two guys must be reading my mind a properly built Kolb with a qualified pilot doesnt need VG's Ellery in Maine -----Original Message----- From: planecrazzzy Sent: Mon, Jun 22, 2009 8:41 pm Subject: Kolb-List: Re: Thank you Probably pulled it out of that "Dark" place ... He pulls alot of answers and comments out of there... .. .. Gotta Fly... Mike & "Jaz" the Flying Dog .. .. .. -------- .. .. .. .. .. Do Not Archive Read this topic online here: http://forums.matronics.com/viewtopic.php?p=249600#249600 ________________________________ Message 10 ____________________________________ Time: 08:25:06 PM PST US From: "Richard & Martha Neilsen" Subject: Re: Kolb-List: Re: Thank you John We had some yahoo ranting for seemed like for ever, like he knew more than any of the engineers at Rotax and you hardly gave him any of your wisdom. Yea I hope I don't get him started again. Then Mike makes a comment that might be a good safety suggestion and you zing him. I was talking to a retired commercial pilot last week with 20,000+ hours that flies a firestar II. He said learning to land the Firestar was about the most difficult thing he ever had to learn. Transitioning from a Lear Jet would seem to be a big change. Adding VGs helped a bunch. Now there is nothing wrong with the stock Kolb design but if VGs helps some people why not? I got a ride in a MKIIIC last winter with VGs and it did seemed to land slower. I might even try a set of VGs on my airplane. Also starting to think about flying to Oshkosh are you going? Is anyone else planning to fly? Sure would be fun to have a big group of Kolb flyers in the camp ground. Oh please do not archive Rick Neilsen Redrive VW powered MKIIIC ----- Original Message ----- From: "John Hauck" Sent: Monday, June 22, 2009 7:06 PM Subject: Re: Kolb-List: Re: Thank you > > > > Your accident would not have happened if you had VG's on your Firestar. > The difference VG's make on a Kolb are nothing short of miraculous, > especially in the conditions you describe. >> >> Mike > > > No kidding! > > How did you come up with this profound statement? > > john h > mkIII > > > ________________________________ Message 11 ____________________________________ Time: 08:49:18 PM PST US From: "Ron @ KFHU" Subject: Re: Kolb-List: Re: Cayuna 430 and Pterodactyl :-) I have no idea, some of you guys spent way more time than me in those contraptions. So if you say a Rotax is preferable to a Cuyana ( have you ever noticed how both of them have weird and unusual names) I go along with it. All I can say I gotta fly the contraption I have as its the only one readily available for the job. I wish I had some late model super gizmo with the latest things, but alas ..... ===================================== ---- JetPilot wrote: ============ captainron1(at)cox.net wrote: > Yesterday I test flew a Rotax 440 on an Eipper MX. What a racket it makes. I can fly on the Cuyuna at low power without ear plugs, not so with the Rotax. That alone is enough for me to favor the Cuyuna motor. > > Any other advice for flying the duck? > > The Rotax 447 is a far Superior motor to the Cuyuna. I like quiet motors, but I am not convinced that the cuyuna is quieter than the Rotax 447. You tried a Rotax on a Qucksilver, a horrible and draggy airplane that takes a huge amount of power to keep it in the air. It may be that the airplane and its installation has as much an impact on the noise as the motor itself. Either way, I would not fly with an such unreliable and touchy motor as the Cuyuna , noise or not... Not having in flight engine failures is far more important than noise, and I have my doubts as to weather this is even the case or not. Mike -------- "NO FEAR" - If you have no fear you did not go as fast as you could have !!! Kolb MK-III Xtra, 912-S Read this topic online here: http://forums.matronics.com/viewtopic.php?p=249571#249571 -- kugelair.com ________________________________ Message 12 ____________________________________ Time: 08:49:22 PM PST US From: "John Hauck" Subject: Re: Kolb-List: Re: Thank you > We had some yahoo ranting for seemed like for ever, like he knew more than > any of the engineers at Rotax and you hardly gave him any of your wisdom. > Yea I hope I don't get him started again. Then Mike makes a comment that > might be a good safety suggestion and you zing him. Rick: I quoted what I was responding to: > > Your accident would not have happened if you had VG's on your Firestar. > The difference VG's make on a Kolb are nothing short of miraculous, > especially in the conditions you describe. >> >> Mike Still curious how Mike B knew VG's would have saved the ship. Still waiting for someone to demonstrate to me how "miraculous VGs are". Sorry your experienced friend has difficulty flying a FS. If VGs helped him keep from breaking his FS, great. I haven't found a situation where I could not live without them. You are not reading what I was writing. I have never, nor will I ever bad mouth VGs. I have flown a FS with them. I don't need them. Please don't make me out as a bad guy. I do all right flying my airplanes the way I prefer to. I doubt I will fly to OSH. Thanks, john h mkIII ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kolb-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Kolb-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/kolb-list Browse Digests http://www.matronics.com/digest/kolb-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.