Original Posted By: "Don Emch"
Rick H.,I didn't use the "horseshoe" plates on the 3/4"x 3/4" compression strutson my Pietenpol, but they could be employed there to help hold thestruts in position. I used the triangular (sort of) gussets as shown inthe plans and they seem to be satisfactory for this purpose.If you wish, I can send you (off list) a photo showing my Pietenpolunder construction with a view of the compression struts, etc. It is ablack and white photo and was taken, in 1969, by a friend who was theco-builder of a Pietenpol in 1931 (when he was only 16 and the other guywas just 17!).Graham Hansen Pietenpol CF-AUN________________________________________________________________________________Subject: Pietenpol-List: Tailskid Tailwheel
Pietenpol-List: Tailskid Tailwheel
Original Posted By: Rcaprd(at)aol.com
Hi Guys...This is my tailwheel that Chris was asking about. I thought I'd post a picture.It is basically just a wheel added to the plans skid. The wheel is a 4" unitfrom Wick's. The fork is welded up and has a vertical steel tube bushing intowhich an AN8 bolt is pressed (1/2" bolt). This is the vertical shaft of thefork. A welded up 'T' tops it off which is connected to the rudder cables.An AN3 bolt goes through the AN8 bolt in the fork and in the 'T' to lock everythingtogether. The shaft of the fork fits into a bushed tube that is weledto the A-frame. Plates are welded top and bottom of that. The spring is froma fork tube from the front of a wrecked motorcycle. $2.00 from the local junkyard.It started out about 2' long and had to be cut down. The cables connectto the rudder cables under the seat with #10 electrical wire connectors. The tubes tend to want to twist when turning left or right so I plan to help thatby welding a cross piece near where the tubes meet the fuselage. It probablyisn't the best idea out there, but seems to be working for now and is fairlylight in weight.Don EmchRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/dscn ... __________
Hi Guys...This is my tailwheel that Chris was asking about. I thought I'd post a picture.It is basically just a wheel added to the plans skid. The wheel is a 4" unitfrom Wick's. The fork is welded up and has a vertical steel tube bushing intowhich an AN8 bolt is pressed (1/2" bolt). This is the vertical shaft of thefork. A welded up 'T' tops it off which is connected to the rudder cables.An AN3 bolt goes through the AN8 bolt in the fork and in the 'T' to lock everythingtogether. The shaft of the fork fits into a bushed tube that is weledto the A-frame. Plates are welded top and bottom of that. The spring is froma fork tube from the front of a wrecked motorcycle. $2.00 from the local junkyard.It started out about 2' long and had to be cut down. The cables connectto the rudder cables under the seat with #10 electrical wire connectors. The tubes tend to want to twist when turning left or right so I plan to help thatby welding a cross piece near where the tubes meet the fuselage. It probablyisn't the best idea out there, but seems to be working for now and is fairlylight in weight.Don EmchRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/dscn ... __________
Pietenpol-List: Re: Tailskid Tailwheel
Original Posted By: "Don Emch"
Subject: Pietenpol-List: Turnbuckles - what holds up a projectIn a message dated 5/1/2006 6:01:52 AM Central Standard Time, harvey.rule(at)bell.ca writes:Actually if I had built this plane from scratch I would have put the turnbuckles at the other end where they would be outside the fusy and easier toget at.Any comments on this? I have two turnbuckles on the rudder horn, and four turnbuckles at the Flipper horns. Like you said, easy to get to, adjust, and inspect. Eventually,I'm going to change out the rudder cables, and instead of turnbuckles, I'm going to use two straps made from .060" 4130, which will be about 7/16" X 1 1/2"...similar to motorcycle master links. I have a local shop that will shear4130 for me. I can make a dozen of these things for the price of a single turnbuckle, and vary the length between the holes of each pair by a few thousandthsof an inch, then find the ones that take the slack out of the cables. List the length on the part, and keep the rest for future adjustment requirements. I'lluse #10 AN bolts, with locking castle nuts. I'll place them at the rudder bar, instead of back at the horn, to save a little weight on the tail. I haven't used this method yet, but I don't see any reason why they couldn't replaceall the turnbuckles in the control system, because None of the control surfacecables on the Pietenpol should be tight...just take the slack out, and that's it. Before doing this, It would be interesting to compare the tensile strength of these straps, with that of a turnbuckle.Chuck G.NX770CG________________________________________________________________________________Subject: Pietenpol-List: Re: Tailskid Tailwheel
Subject: Pietenpol-List: Turnbuckles - what holds up a projectIn a message dated 5/1/2006 6:01:52 AM Central Standard Time, harvey.rule(at)bell.ca writes:Actually if I had built this plane from scratch I would have put the turnbuckles at the other end where they would be outside the fusy and easier toget at.Any comments on this? I have two turnbuckles on the rudder horn, and four turnbuckles at the Flipper horns. Like you said, easy to get to, adjust, and inspect. Eventually,I'm going to change out the rudder cables, and instead of turnbuckles, I'm going to use two straps made from .060" 4130, which will be about 7/16" X 1 1/2"...similar to motorcycle master links. I have a local shop that will shear4130 for me. I can make a dozen of these things for the price of a single turnbuckle, and vary the length between the holes of each pair by a few thousandthsof an inch, then find the ones that take the slack out of the cables. List the length on the part, and keep the rest for future adjustment requirements. I'lluse #10 AN bolts, with locking castle nuts. I'll place them at the rudder bar, instead of back at the horn, to save a little weight on the tail. I haven't used this method yet, but I don't see any reason why they couldn't replaceall the turnbuckles in the control system, because None of the control surfacecables on the Pietenpol should be tight...just take the slack out, and that's it. Before doing this, It would be interesting to compare the tensile strength of these straps, with that of a turnbuckle.Chuck G.NX770CG________________________________________________________________________________Subject: Pietenpol-List: Re: Tailskid Tailwheel
Original Posted By: Rcaprd(at)aol.com
Here is another shot. After looking at the picture I realize I see Frank Pavliga'sPiet in the background. He has the original tailskid. Those tail skid guysare a special breed! About 23 years and who knows how many hours on thatthing!Don EmchRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/dscn ... __________
Here is another shot. After looking at the picture I realize I see Frank Pavliga'sPiet in the background. He has the original tailskid. Those tail skid guysare a special breed! About 23 years and who knows how many hours on thatthing!Don EmchRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/dscn ... __________
RE: Pietenpol-List: Re: Tailskid Tailwheel
Original Posted By: "Jack T. Textor"
Subject: Re: Pietenpol-List: Tailskid TailwheelIn a message dated 5/1/2006 9:50:12 PM Central Standard Time, EmchAir(at)aol.com writes:Hi Guys...This is my tailwheel that Chris was asking about. I thought I'd post a picture. It is basically just a wheel added to the plans skid. The wheel is a4" unit from Wick's. The fork is welded up and has a vertical steel tube bushinginto which an AN8 bolt is pressed (1/2" bolt). This is the vertical shaft of the fork. A welded up 'T' tops it off which is connected to the rudder cables. An AN3 bolt goes through the AN8 bolt in the fork and in the 'T' to lockeverything together. The shaft of the fork fits into a bushed tube that is weled to the A-frame. Plates are welded top and bottom of that. The spring isfrom a fork tube from the front of a wrecked motorcycle. $2.00 from the localjunkyard. It started out about 2' long and had to be cut down. The cables connect to the rudder cables under the seat with #10 electrical wire connectors. The tubes tend to want to twist when turning left or right so I plan to help that by welding a cross piece near where the tubes me!et the fuselage. It probably isn't the best idea out there, but seems to be working for now and is fairly light in weight.Don EmchI also added a tailwheel to the plans type tailskid, after about 35 hours of operation. When making changes, Nothing is free, everything is a tradeoff. In this area, the tradeoff is the deck angle (static laden) of the three pointattitude. With the skid, the tail was lower, and I was able to do full stall landings much easier than now. With the wheel back there, the tail is higher,and at 3 point touchdown attitude she hasn't yet reached the 'Critical Angle of Attack', and the wing is not yet done flying, and a bounce sometimes occurs. This is the reason I located the tail wheel Behind the skid plate, asopposed to under it - to get the tail as low as possible. On the grass, 3 outof 4 landings are greasers when I touch tail first, but Every time I have tried full stall on the hard surface, she bounces, even when I touch tail first. Forthis reason, I have to wheel it on the hard surface, and put up with the long roll out. I much prefer full stall landings. Those few seconds during touchdown are the juiciest part of the flight for me !!Chuck G.NX770CGwith little pieces of toilet paper hanging all over the plane !! he he he !!________________________________________________________________________________Subject: RE: Pietenpol-List: Re: Tailskid TailwheelDate: Tue, 2 May 2006 05:20:33 -0500
Subject: Re: Pietenpol-List: Tailskid TailwheelIn a message dated 5/1/2006 9:50:12 PM Central Standard Time, EmchAir(at)aol.com writes:Hi Guys...This is my tailwheel that Chris was asking about. I thought I'd post a picture. It is basically just a wheel added to the plans skid. The wheel is a4" unit from Wick's. The fork is welded up and has a vertical steel tube bushinginto which an AN8 bolt is pressed (1/2" bolt). This is the vertical shaft of the fork. A welded up 'T' tops it off which is connected to the rudder cables. An AN3 bolt goes through the AN8 bolt in the fork and in the 'T' to lockeverything together. The shaft of the fork fits into a bushed tube that is weled to the A-frame. Plates are welded top and bottom of that. The spring isfrom a fork tube from the front of a wrecked motorcycle. $2.00 from the localjunkyard. It started out about 2' long and had to be cut down. The cables connect to the rudder cables under the seat with #10 electrical wire connectors. The tubes tend to want to twist when turning left or right so I plan to help that by welding a cross piece near where the tubes me!et the fuselage. It probably isn't the best idea out there, but seems to be working for now and is fairly light in weight.Don EmchI also added a tailwheel to the plans type tailskid, after about 35 hours of operation. When making changes, Nothing is free, everything is a tradeoff. In this area, the tradeoff is the deck angle (static laden) of the three pointattitude. With the skid, the tail was lower, and I was able to do full stall landings much easier than now. With the wheel back there, the tail is higher,and at 3 point touchdown attitude she hasn't yet reached the 'Critical Angle of Attack', and the wing is not yet done flying, and a bounce sometimes occurs. This is the reason I located the tail wheel Behind the skid plate, asopposed to under it - to get the tail as low as possible. On the grass, 3 outof 4 landings are greasers when I touch tail first, but Every time I have tried full stall on the hard surface, she bounces, even when I touch tail first. Forthis reason, I have to wheel it on the hard surface, and put up with the long roll out. I much prefer full stall landings. Those few seconds during touchdown are the juiciest part of the flight for me !!Chuck G.NX770CGwith little pieces of toilet paper hanging all over the plane !! he he he !!________________________________________________________________________________Subject: RE: Pietenpol-List: Re: Tailskid TailwheelDate: Tue, 2 May 2006 05:20:33 -0500
Pietenpol-List: Re: Tailskid Tailwheel
Original Posted By: "Don Emch"
Subject: Re: Pietenpol-List: (no subject)Carl,Forgive me for losing your identity.Received news yesterday that out mutual friend Leon LeSueur passed away Sunday.Corky________________________________________________________________________________Subject: Pietenpol-List: Re: Tailskid Tailwheel
Subject: Re: Pietenpol-List: (no subject)Carl,Forgive me for losing your identity.Received news yesterday that out mutual friend Leon LeSueur passed away Sunday.Corky________________________________________________________________________________Subject: Pietenpol-List: Re: Tailskid Tailwheel
Original Posted By: Rcaprd(at)aol.com
My deck angle is already a little high, I think around 15 or 16 degrees, but notsure I'd have to measure again. The plans split axle gear is taller than thewood straight axle gear. The wood gear usually is used with the spoke wheels.I decided to used the spoke wheels on the split axle gear. So... this makesit kinda tall. I've seen Piets go from one extreme to the other in the deckangle. I seem to get close to full stall 3-points. Just another area wherelittle changes lead to unique airplanes!Don EmchRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
My deck angle is already a little high, I think around 15 or 16 degrees, but notsure I'd have to measure again. The plans split axle gear is taller than thewood straight axle gear. The wood gear usually is used with the spoke wheels.I decided to used the spoke wheels on the split axle gear. So... this makesit kinda tall. I've seen Piets go from one extreme to the other in the deckangle. I seem to get close to full stall 3-points. Just another area wherelittle changes lead to unique airplanes!Don EmchRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Pietenpol-List: Re: Tailskid Tailwheel
Original Posted By: "Don Emch"
Subject: Re: Pietenpol-List: Re: Tailskid TailwheelIn a message dated 5/2/2006 5:50:29 AM Central Standard Time, jtextor(at)thepalmergroup.com writes:Has anyone raised the maingear to help with the problem?That's just what Don E., and others, did with the wire wheels. I have the 8.00 - 6 tires, making it a lower deck angle of about 11 degrees. I don't really see it as a problem, just more of a challenge to get a full stall landing- and on the plus side, I can step right in, without damaging the family jewels...Chuck G.NX770CG________________________________________________________________________________Subject: Pietenpol-List: Re: Tailskid Tailwheel
Subject: Re: Pietenpol-List: Re: Tailskid TailwheelIn a message dated 5/2/2006 5:50:29 AM Central Standard Time, jtextor(at)thepalmergroup.com writes:Has anyone raised the maingear to help with the problem?That's just what Don E., and others, did with the wire wheels. I have the 8.00 - 6 tires, making it a lower deck angle of about 11 degrees. I don't really see it as a problem, just more of a challenge to get a full stall landing- and on the plus side, I can step right in, without damaging the family jewels...Chuck G.NX770CG________________________________________________________________________________Subject: Pietenpol-List: Re: Tailskid Tailwheel
RE: Pietenpol-List: Re: Tailskid Tailwheel
Original Posted By: "Phillips, Jack"
Hi GuysSaw this tab on a Minimax site. Looks like it is pretty small and thin. Food for thought.Best regardsSteve G>From: "Don Emch" >Reply-To: pietenpol-list(at)matronics.com>To: pietenpol-list(at)matronics.com>Subject: Pietenpol-List: Interesting trim>Date: Tue, 2 May 2006 18:43:17 -0700>>>Hi Guys...>I figured out something really cool the other morning while flying. Others >I'm sure have figured this out too. I don't have any kind of pitch trim. >I have a nose tank that holds about 14.5 gallons. While somewhere around 8 >gallons it is pretty much in trim in pitch with my weight. If I let go of >the stick and leaned back it slowly pitches up. If I leaned forward it >slowly pitches down. I know it only makes sense but I don't think I've >ever flown anything that is so easily affected by weight movement!>Don Emch>>>Read this topic online here:>>http://forums.matronics.com/viewtopic.p ... ___Subject: RE: Pietenpol-List: Re: Tailskid TailwheelDate: Tue, 2 May 2006 23:23:47 -0400
Hi GuysSaw this tab on a Minimax site. Looks like it is pretty small and thin. Food for thought.Best regardsSteve G>From: "Don Emch" >Reply-To: pietenpol-list(at)matronics.com>To: pietenpol-list(at)matronics.com>Subject: Pietenpol-List: Interesting trim>Date: Tue, 2 May 2006 18:43:17 -0700>>>Hi Guys...>I figured out something really cool the other morning while flying. Others >I'm sure have figured this out too. I don't have any kind of pitch trim. >I have a nose tank that holds about 14.5 gallons. While somewhere around 8 >gallons it is pretty much in trim in pitch with my weight. If I let go of >the stick and leaned back it slowly pitches up. If I leaned forward it >slowly pitches down. I know it only makes sense but I don't think I've >ever flown anything that is so easily affected by weight movement!>Don Emch>>>Read this topic online here:>>http://forums.matronics.com/viewtopic.p ... ___Subject: RE: Pietenpol-List: Re: Tailskid TailwheelDate: Tue, 2 May 2006 23:23:47 -0400
Pietenpol-List: Re: Tailskid Tailwheel
Original Posted By: Ken