Original Posted By: John Kuhfahl
Subject: Pietenpol-List: Tail wheel assembly weight
Pietenpol-List: Tail wheel assembly weight
RE: Pietenpol-List: Tail wheel assembly weight
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Yep. My tailweheel with the entire spring assemby weighs only 5.5 lbs.Jack PhillipsNX899JPSmith Mountain Lake, Virginia _____
Yep. My tailweheel with the entire spring assemby weighs only 5.5 lbs.Jack PhillipsNX899JPSmith Mountain Lake, Virginia _____
Re: Pietenpol-List: Tail wheel assembly weight
Original Posted By: John Kuhfahl
Believe me, I searched the archives before asking, but it still isn't entirelyclear for me---I began cutting 4130 for the metal parts and have moved on to cutting for the cabaneand spar butt joint straps. I had always planned on building the 3-piecewing but hadn't deliberately studied the plan page until today. I was alwaysunder the assumption from the "Improved Design" that the spar for the forwardwing was 1" wide routed to 1/2" where indicated; the rear spar is a solid 1".This is how I had planned to do it.In reviewing the 3-piece center section plans, it says the center section sparis 3/4" and the wing panel spar is 3/4".In reviewing the archives, I see people have done it many ways--1" routed wingspars, 1" non-routed wing spars, 3/4" wing spars.My question, I suppose, would be this-- I'll plan on using the 1" routed frontwing spars and the 1" solid rear spars as plans indicate, but does this mean perthe 3-piece plans that the center section spar should still be 3/4" (and addplywood or spruce spacers to match the 1" dimensions of the outer wing spars)or would I make the center section spars 1" to match the left and right wingspars exactly? My ribs were built for the 1" spars.Any thoughts would be appreciated.TomRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Sun, 14 Aug 2011 20:24:57 -0500Subject: Re: Pietenpol-List: Tail wheel assembly weight
Believe me, I searched the archives before asking, but it still isn't entirelyclear for me---I began cutting 4130 for the metal parts and have moved on to cutting for the cabaneand spar butt joint straps. I had always planned on building the 3-piecewing but hadn't deliberately studied the plan page until today. I was alwaysunder the assumption from the "Improved Design" that the spar for the forwardwing was 1" wide routed to 1/2" where indicated; the rear spar is a solid 1".This is how I had planned to do it.In reviewing the 3-piece center section plans, it says the center section sparis 3/4" and the wing panel spar is 3/4".In reviewing the archives, I see people have done it many ways--1" routed wingspars, 1" non-routed wing spars, 3/4" wing spars.My question, I suppose, would be this-- I'll plan on using the 1" routed frontwing spars and the 1" solid rear spars as plans indicate, but does this mean perthe 3-piece plans that the center section spar should still be 3/4" (and addplywood or spruce spacers to match the 1" dimensions of the outer wing spars)or would I make the center section spars 1" to match the left and right wingspars exactly? My ribs were built for the 1" spars.Any thoughts would be appreciated.TomRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Sun, 14 Aug 2011 20:24:57 -0500Subject: Re: Pietenpol-List: Tail wheel assembly weight
RE: Pietenpol-List: Tail wheel assembly weight
Original Posted By: owner-pietenpol-list-server(at)matronics.com
If the shim was added to compensate for a heavy tail.that heavy tailwheelcould be part of the problem. Keep looking, though.Gary
If the shim was added to compensate for a heavy tail.that heavy tailwheelcould be part of the problem. Keep looking, though.Gary
Pietenpol-List: Re: Tail wheel assembly weight
Original Posted By: "K5YAC"
John (kuhlcouper) wrote->I have this big old 10-pound tail wheel assembly. Probably too heavy right?Now John, I offered you that Matco tailwheel assembly and I don't think it weighs 10 lbs. ;o)It sure will help you get in the air quicker if you don't change too many thingsfrom the way the original builder had them, but sometimes the way that was maynot have been the best thing. Lighter on the tail is always better with theseairplanes, and the shim under the horizontal stabilizer is a warning flag thattheairplane flew with the stick held forward until the builder added the shim in anattempt to pull the tail up. It adds trim drag and doesn't improve stability.You may want to wait till you get the airplane back on the gear or even longer,and then do a trial W&B. Study the results that William Wynne and Ryan Muellercame up with when they weighed a bunch of different Piets and variants, payingspecial attention to the weight on the tail when the airplane is in the levelcondition. Go from there on deciding what to adjust.Sure miss you guys at San Geronimo every time I see a plane pass overhead. Mygood old Scout is within spitting distance of your shop, but a couple of time zonesaway from where I'm sitting typing this so go by and give 41CC a pat on the nosefor me... Oscar ZunigaAir Camper NX41CC "Scout"Flying Squirrel N2069Z "Rocket"Medford, ORwebsite at http://www.flysquirrel.net ________________________________________________________________________________Subject: Pietenpol-List: Re: Tail wheel assembly weight
John (kuhlcouper) wrote->I have this big old 10-pound tail wheel assembly. Probably too heavy right?Now John, I offered you that Matco tailwheel assembly and I don't think it weighs 10 lbs. ;o)It sure will help you get in the air quicker if you don't change too many thingsfrom the way the original builder had them, but sometimes the way that was maynot have been the best thing. Lighter on the tail is always better with theseairplanes, and the shim under the horizontal stabilizer is a warning flag thattheairplane flew with the stick held forward until the builder added the shim in anattempt to pull the tail up. It adds trim drag and doesn't improve stability.You may want to wait till you get the airplane back on the gear or even longer,and then do a trial W&B. Study the results that William Wynne and Ryan Muellercame up with when they weighed a bunch of different Piets and variants, payingspecial attention to the weight on the tail when the airplane is in the levelcondition. Go from there on deciding what to adjust.Sure miss you guys at San Geronimo every time I see a plane pass overhead. Mygood old Scout is within spitting distance of your shop, but a couple of time zonesaway from where I'm sitting typing this so go by and give 41CC a pat on the nosefor me... Oscar ZunigaAir Camper NX41CC "Scout"Flying Squirrel N2069Z "Rocket"Medford, ORwebsite at http://www.flysquirrel.net ________________________________________________________________________________Subject: Pietenpol-List: Re: Tail wheel assembly weight
Re: Pietenpol-List: Tail wheel assembly weight
Original Posted By: John Kuhfahl
The photo of the tailwheel weighs at least ten pounds.--------Mark ChouinardWings, Center Section and Empannage framed up - Working on FuselageRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 16 Aug 2011 09:52:27 -0500Subject: Re: Pietenpol-List: Tail wheel assembly weight
The photo of the tailwheel weighs at least ten pounds.--------Mark ChouinardWings, Center Section and Empannage framed up - Working on FuselageRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 16 Aug 2011 09:52:27 -0500Subject: Re: Pietenpol-List: Tail wheel assembly weight
Re: Pietenpol-List: Re: Tail wheel assembly weight
Original Posted By: John Kuhfahl
Subject: Re: Pietenpol-List: Re: Tail wheel assembly weight
Subject: Re: Pietenpol-List: Re: Tail wheel assembly weight
Re: Pietenpol-List: Re: Thrust test
Original Posted By: gboothe5(at)comcast.net
Yesterday was the First Annual Nor-Cal Truck Pull. With a record crowd,from as far as Texas and cheers from the horse stables, first time entrant,Gary Boothe's mighty Corvair powered AirCamper ran flawlessly. With260 lbs of thrust, it strained against the ropes trying to tame it. Withoutactually moving the truck, He was easily the winner!Upon post-run inspection, it was discovered, that Gary's pilot, Curt put hisweight into the pull. While holding the brakes to prevent the clip-wingedPiet from getting airborne, he pushed his dairy-air too hard into the backof the seat. Gary now has a Broke Back Piet. With some reinforcement, posting of pictures, detailed description and sketch-up drawings, he'll be ready for another run in less time that it takes Kevin to change a brokenspoke.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/past ... ___Subject: Re: Pietenpol-List: Re: Thrust test
Yesterday was the First Annual Nor-Cal Truck Pull. With a record crowd,from as far as Texas and cheers from the horse stables, first time entrant,Gary Boothe's mighty Corvair powered AirCamper ran flawlessly. With260 lbs of thrust, it strained against the ropes trying to tame it. Withoutactually moving the truck, He was easily the winner!Upon post-run inspection, it was discovered, that Gary's pilot, Curt put hisweight into the pull. While holding the brakes to prevent the clip-wingedPiet from getting airborne, he pushed his dairy-air too hard into the backof the seat. Gary now has a Broke Back Piet. With some reinforcement, posting of pictures, detailed description and sketch-up drawings, he'll be ready for another run in less time that it takes Kevin to change a brokenspoke.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/past ... ___Subject: Re: Pietenpol-List: Re: Thrust test
Original Posted By: Piet2112
Ha! What would I do without friends?!Curt is right. It was all he could do to hold back the screaming mass with heelbrakes. Doing so demonstrated a weak point in a x-member midway behind the pilotseat...well, that's what such events are for.Nevertheless, I have decided to put some effort into re-pitching my prop.Gary------Original Message------
Ha! What would I do without friends?!Curt is right. It was all he could do to hold back the screaming mass with heelbrakes. Doing so demonstrated a weak point in a x-member midway behind the pilotseat...well, that's what such events are for.Nevertheless, I have decided to put some effort into re-pitching my prop.Gary------Original Message------
Re: Pietenpol-List: Industrial fish scale
Original Posted By: gboothe5(at)comcast.net
Gary Boothe,Please keep that fish scale so you can measure your thrust again after the re-pitch.Dan HelsperPuryear, TN________________________________________________________________________________Subject: Re: Pietenpol-List: Industrial fish scale
Gary Boothe,Please keep that fish scale so you can measure your thrust again after the re-pitch.Dan HelsperPuryear, TN________________________________________________________________________________Subject: Re: Pietenpol-List: Industrial fish scale
Original Posted By: "Gboothe5"
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Re: Pietenpol-List: Re: Tail wheel assembly weight
Original Posted By: John Kuhfahl
Hi John - I use two leaf springs to good effect.Another subject: came by san geronimo a few weekends ago for the eaa breakfast.Not a soul to be found. Guess I should've called before making the trip.--------Kevin "Axel" PurteeNX899KPAustin/Georgetown, TXRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 17 Aug 2011 05:46:54 -0500Subject: Re: Pietenpol-List: Re: Tail wheel assembly weight
Hi John - I use two leaf springs to good effect.Another subject: came by san geronimo a few weekends ago for the eaa breakfast.Not a soul to be found. Guess I should've called before making the trip.--------Kevin "Axel" PurteeNX899KPAustin/Georgetown, TXRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Wed, 17 Aug 2011 05:46:54 -0500Subject: Re: Pietenpol-List: Re: Tail wheel assembly weight
> * *Pietenpol-List: Tail wheel assembly weight
Original Posted By: "Jack Phillips"
> *To: *> *ReplyTo: * pietenpol-list(at)matronics.com> *Subject: *Pietenpol-List: Tail wheel assembly weight>> OK thanks to all who responded on the horizontal spacer I found. I> suspected it was a fix for an underlying problem. I have this big old> 10-pound tail wheel assembly. Probably too heavy right?>> --> John Kuhfahl, Lt Col USAF (Ret),> President, KUHLCOUPER LLC>-- John Kuhfahl, Lt Col USAF (Ret),President, KUHLCOUPER LLC________________________________________________________________________________
> *To: *> *ReplyTo: * pietenpol-list(at)matronics.com> *Subject: *Pietenpol-List: Tail wheel assembly weight>> OK thanks to all who responded on the horizontal spacer I found. I> suspected it was a fix for an underlying problem. I have this big old> 10-pound tail wheel assembly. Probably too heavy right?>> --> John Kuhfahl, Lt Col USAF (Ret),> President, KUHLCOUPER LLC>-- John Kuhfahl, Lt Col USAF (Ret),President, KUHLCOUPER LLC________________________________________________________________________________