Original Posted By: del magsam
Subject: Pietenpol-List: Tail weightPieters,Am beginning to get weight concious as Repiet progresses. I weighed my complete tailwheel and the two 1 1/2 inch flat springs (long one is front centerleaf from T model Ford) and it says 8 pounds. Kinda heavy huh?Give me some weights of yours.Corky in beautiful La sleeping under a blanket these last few nights with his yankee bride________________________________________________________________________________Date: Wed, 1 Oct 2003 19:38:07 -0700 (PDT)
Pietenpol-List: Tail weight
Re: Pietenpol-List: Tail weight
Original Posted By: "John Dilatush"
Subject: Re: Pietenpol-List: Tail weightGuy's, As a new Piet builder, is there a reason in the community why many don't use the plans design tail wheel spring method and rather go with the leaf and steerable tail wheel?Thanks, Greg Menoche________________________________________________________________________________
Subject: Re: Pietenpol-List: Tail weightGuy's, As a new Piet builder, is there a reason in the community why many don't use the plans design tail wheel spring method and rather go with the leaf and steerable tail wheel?Thanks, Greg Menoche________________________________________________________________________________
Re: Pietenpol-List: Tail weight
Original Posted By: Michael D Cuy
RE: Pietenpol-List: Tail weight
Original Posted By: JamesJboyer(at)aol.com
Del,I'll bite, how do you know the Sonex tailwheel is strong enough?Looked at the Sonex website, will he sell the Titanium tailwheel spring to anon-sonex builder?Skip>This is how I feel, people are making their tailwheels way too heavy, takea look at the >sonex tailwheel, and copy it, it is really good, light and strong, ask mehow I know. It >also handles way better than any other tailwheel airplane. Del________________________________________________________________________________
Del,I'll bite, how do you know the Sonex tailwheel is strong enough?Looked at the Sonex website, will he sell the Titanium tailwheel spring to anon-sonex builder?Skip>This is how I feel, people are making their tailwheels way too heavy, takea look at the >sonex tailwheel, and copy it, it is really good, light and strong, ask mehow I know. It >also handles way better than any other tailwheel airplane. Del________________________________________________________________________________
Re: Pietenpol-List: Tail weight
Original Posted By: Michael D Cuy
Subject: Re: Pietenpol-List: Tail weightHi Mike and Corky,Just weighed my tailwheel, two springs, two bolts (welded to small steel plate) and nuts for bolts. Total weighed 8.5 pounds.cheers, JimHi Mike and Corky,Just weighed my tailwheel, two springs, two bolts (welded to small steel plate)and nuts for bolts. Total weighed 8.5 pounds.cheers, Jim________________________________________________________________________________Date: Thu, 02 Oct 2003 14:52:56 -0400
Subject: Re: Pietenpol-List: Tail weightHi Mike and Corky,Just weighed my tailwheel, two springs, two bolts (welded to small steel plate) and nuts for bolts. Total weighed 8.5 pounds.cheers, JimHi Mike and Corky,Just weighed my tailwheel, two springs, two bolts (welded to small steel plate)and nuts for bolts. Total weighed 8.5 pounds.cheers, Jim________________________________________________________________________________Date: Thu, 02 Oct 2003 14:52:56 -0400
Re: Pietenpol-List: Tail weight
Original Posted By: "John Dilatush"
Subject: Re: Pietenpol-List: Tail weightIn a message dated 10/1/03 10:49:52 PM Central Daylight Time, Gnwac(at)cs.com writes:>I used the plans design triangle skid, (short fuse), coil spring, and recently put a steerable tailwheel to the aft end of it. I used a 3 1/2" wheelI bought at Harbor Freight, removed the ball bearings from it, and used 'Oilite Brass Bearings' in the wheel, as well as in the pivot point of the steering. Iused 1/16" cable all the way up to the inboard portion of the rudder bar. I ran these cables thru nylon tubing thru the back cockpit, about 1 1/2" from eachside of the torque tube. Everything is working very well.Chuck G.full fuel for a week and a half, waiting for the chance to burn some...________________________________________________________________________________
Subject: Re: Pietenpol-List: Tail weightIn a message dated 10/1/03 10:49:52 PM Central Daylight Time, Gnwac(at)cs.com writes:>I used the plans design triangle skid, (short fuse), coil spring, and recently put a steerable tailwheel to the aft end of it. I used a 3 1/2" wheelI bought at Harbor Freight, removed the ball bearings from it, and used 'Oilite Brass Bearings' in the wheel, as well as in the pivot point of the steering. Iused 1/16" cable all the way up to the inboard portion of the rudder bar. I ran these cables thru nylon tubing thru the back cockpit, about 1 1/2" from eachside of the torque tube. Everything is working very well.Chuck G.full fuel for a week and a half, waiting for the chance to burn some...________________________________________________________________________________
Re: Pietenpol-List: Tail weight
Original Posted By: "skellytown flyer"
Need the weight of each main when the airplane is level to figure w/b.Perry RhoadsN12939----- Original Message -----
Need the weight of each main when the airplane is level to figure w/b.Perry RhoadsN12939----- Original Message -----
RE: Pietenpol-List: Tail weight
Original Posted By:> skellytown flyer
Raymond,The tail weight(the scale under the tail wheel) is strictly a function ofthe placement of the main gear, nothing to do with the CG. My GN1 tailweight is 24 lbs level and about 55 lbs at 3 point attitude.Skip
Raymond,The tail weight(the scale under the tail wheel) is strictly a function ofthe placement of the main gear, nothing to do with the CG. My GN1 tailweight is 24 lbs level and about 55 lbs at 3 point attitude.Skip
Re: Pietenpol-List: Re: Tail weight
Original Posted By: "skellytown flyer"
Raymond,Using your weights and measurements, you're 37.20 aft of datum with that loading of 1231 gross. If you have a 60"chord, 34% is 20.40, or 38.40 aft of datum. You're in!These figures have been done out of boredom at work, so please don't go by anything I say.Perry RhoadsN12939----- Original Message -----
Raymond,Using your weights and measurements, you're 37.20 aft of datum with that loading of 1231 gross. If you have a 60"chord, 34% is 20.40, or 38.40 aft of datum. You're in!These figures have been done out of boredom at work, so please don't go by anything I say.Perry RhoadsN12939----- Original Message -----
Pietenpol-List: Re: Tail weight
Original Posted By: Jeff Boatright
Thanks Perry-that was my results too. I guess like the previous message indicateda lot of the reason for my light tail is the mains are father back in relationto the CG. I just hadn't thought of that.the biggest drawback i see thereis it will be easier to flip it on it's nose if I go to sleep and don't keep thestick back on the ground or get aggressive with the disc brakes. kinda wishI had a set of those weak band brakes myself.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 22 Jun 2010 19:18:49 -0400
Thanks Perry-that was my results too. I guess like the previous message indicateda lot of the reason for my light tail is the mains are father back in relationto the CG. I just hadn't thought of that.the biggest drawback i see thereis it will be easier to flip it on it's nose if I go to sleep and don't keep thestick back on the ground or get aggressive with the disc brakes. kinda wishI had a set of those weak band brakes myself.Read this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 22 Jun 2010 19:18:49 -0400
Original Posted By: shad bell
Raymond,Look in the archives you'll see discussions about the aft cg issues I had withmy GN-1. I had to make a motor mount 5" longer than the plans called for, ( afterthe C-85 was mounted on the J-3 mount and the cowling was in progress). One thing I did that helped, was to derive the correct pilot and passenger momentsby actual weighing and in my case they were shorter than the plans said.If you do the w&b correctly, the numbers don't lie. At some point you have todraw the line on the maximum allowable aft cg.Tom On Jun 22, 2010, at 4:51 PM, skellytown flyer wrote:> > OK help me guys- I have come to a point where I have about 99% of the airplaneis together. lacking a lot of screws and a few strips of gap seal. but had tosee where I was at with my weight and balance.and the talk about more aft CGgiving better speed with less down elevator required.or at least that is whatI think I heard. and I hear of a lot of birds flying with 30 to 50 pounds onthe tail.I ran my numbers several times and every way I figured it fits withinthe limits of 22% to 34% of chord but close to the back. I am waiting till aboutthe last thing to permanently install the battery because by my thinking itis easier to shift it than add needless weight.anyway- I'll admit it-I am at13 pounds tail weight empty and that sounds extremely low to me.I have done everythingI can to level the plane and repeat weigh it and use different scalesbut the tail wheel is that light. maybe due to the distance from the wing tothe tail being a GN-1 and altered some by DJ it would!> be different.I was even lighter and I removed the nose tank and made and installeda center section tank and it is just bugging me that maybe I'm missingsomething here.but if anyone is willing to e-mail me and check my figures I wouldappreciate a second opinion.for what it's worth- they are as follows. datumfirewall. leading edge 18" back. main wheels 24 1/4" back tail-wheel 185 1/2"back. passenger arm 37 1/2" pilot arm 71" fuel arm 42 1/2" it will hold 15 gallons.Iweigh 210 and figured a 180# passenger for full load and most rear CGwith full fuel. thanks for any help. Raymond> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 078#302078> > > > > > > > > > ________________________________________________________________________________Date: Tue, 22 Jun 2010 17:16:15 -0700 (PDT)
Raymond,Look in the archives you'll see discussions about the aft cg issues I had withmy GN-1. I had to make a motor mount 5" longer than the plans called for, ( afterthe C-85 was mounted on the J-3 mount and the cowling was in progress). One thing I did that helped, was to derive the correct pilot and passenger momentsby actual weighing and in my case they were shorter than the plans said.If you do the w&b correctly, the numbers don't lie. At some point you have todraw the line on the maximum allowable aft cg.Tom On Jun 22, 2010, at 4:51 PM, skellytown flyer wrote:> > OK help me guys- I have come to a point where I have about 99% of the airplaneis together. lacking a lot of screws and a few strips of gap seal. but had tosee where I was at with my weight and balance.and the talk about more aft CGgiving better speed with less down elevator required.or at least that is whatI think I heard. and I hear of a lot of birds flying with 30 to 50 pounds onthe tail.I ran my numbers several times and every way I figured it fits withinthe limits of 22% to 34% of chord but close to the back. I am waiting till aboutthe last thing to permanently install the battery because by my thinking itis easier to shift it than add needless weight.anyway- I'll admit it-I am at13 pounds tail weight empty and that sounds extremely low to me.I have done everythingI can to level the plane and repeat weigh it and use different scalesbut the tail wheel is that light. maybe due to the distance from the wing tothe tail being a GN-1 and altered some by DJ it would!> be different.I was even lighter and I removed the nose tank and made and installeda center section tank and it is just bugging me that maybe I'm missingsomething here.but if anyone is willing to e-mail me and check my figures I wouldappreciate a second opinion.for what it's worth- they are as follows. datumfirewall. leading edge 18" back. main wheels 24 1/4" back tail-wheel 185 1/2"back. passenger arm 37 1/2" pilot arm 71" fuel arm 42 1/2" it will hold 15 gallons.Iweigh 210 and figured a 180# passenger for full load and most rear CGwith full fuel. thanks for any help. Raymond> > > > > Read this topic online here:> > http://forums.matronics.com/viewtopic.p ... 078#302078> > > > > > > > > > ________________________________________________________________________________Date: Tue, 22 Jun 2010 17:16:15 -0700 (PDT)
Re: Pietenpol-List: Tail weight
Original Posted By: Thomas Bernie
http://asociacionaviacionexperimental.c ... ___Subject: Re: Pietenpol-List: Tail weight
http://asociacionaviacionexperimental.c ... ___Subject: Re: Pietenpol-List: Tail weight
Pietenpol-List: Re: Tail weight
Original Posted By: "skellytown flyer"
Plans ordered from Roman Burkolt.--------JohnRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Tail weight
Plans ordered from Roman Burkolt.--------JohnRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Tail weight
Original Posted By: Dan Yocum
Tom I got a great fix for you-I'll swap you this Corvair engine and prop for that85 Continental even up and you can mount it in closer and have a starter toboot. and I'll prop that old Continental. now how can you turn down a deal likethat! RaymondRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Tom I got a great fix for you-I'll swap you this Corvair engine and prop for that85 Continental even up and you can mount it in closer and have a starter toboot. and I'll prop that old Continental. now how can you turn down a deal likethat! RaymondRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
> Pietenpol-List: Tail weight
Original Posted By: "Perry Rhoads"
> Subject: Pietenpol-List: Tail weight>>> OK help me guys- I have come to a point where I have about 99% of theairplane is together. lacking a lot of screws and a few strips of gap seal.but had to see where I was at with my weight and balance.and the talk aboutmore aft CG giving better speed with less down elevator required.or atleast that is what I think I heard. and I hear of a lot of birds flyingwith 30 to 50 pounds on the tail.I ran my numbers several times and everyway I figured it fits within the limits of 22% to 34% of chord but close tothe back. I am waiting till about the last thing to permanently install thebattery because by my thinking it is easier to shift it than add needlessweight.anyway- I'll admit it-I am at 13 pounds tail weight empty and thatsounds extremely low to me.I have done everything I can to level the planeand repeat weigh it and use different scales but the tail wheel is thatlight. maybe due to the distance from the wing to the tail being a GN-1 andaltered some by DJ it would!> be different.I was even lighter and I removed the nose tank and madeand installed a center section tank and it is just bugging me that maybeI'm missing something here.but if anyone is willing to e-mail me and checkmy figures I would appreciate a second opinion.for what it's worth- theyare as follows. datum firewall. leading edge 18" back. main wheels 24 1/4"back tail-wheel 185 1/2" back. passenger arm 37 1/2" pilot arm 71" fuel arm42 1/2" it will hold 15 gallons.I weigh 210 and figured a 180# passengerfor full load and most rear CG with full fuel. thanks for any help. Raymond________________________________________________________________________________
> Subject: Pietenpol-List: Tail weight>>> OK help me guys- I have come to a point where I have about 99% of theairplane is together. lacking a lot of screws and a few strips of gap seal.but had to see where I was at with my weight and balance.and the talk aboutmore aft CG giving better speed with less down elevator required.or atleast that is what I think I heard. and I hear of a lot of birds flyingwith 30 to 50 pounds on the tail.I ran my numbers several times and everyway I figured it fits within the limits of 22% to 34% of chord but close tothe back. I am waiting till about the last thing to permanently install thebattery because by my thinking it is easier to shift it than add needlessweight.anyway- I'll admit it-I am at 13 pounds tail weight empty and thatsounds extremely low to me.I have done everything I can to level the planeand repeat weigh it and use different scales but the tail wheel is thatlight. maybe due to the distance from the wing to the tail being a GN-1 andaltered some by DJ it would!> be different.I was even lighter and I removed the nose tank and madeand installed a center section tank and it is just bugging me that maybeI'm missing something here.but if anyone is willing to e-mail me and checkmy figures I would appreciate a second opinion.for what it's worth- theyare as follows. datum firewall. leading edge 18" back. main wheels 24 1/4"back tail-wheel 185 1/2" back. passenger arm 37 1/2" pilot arm 71" fuel arm42 1/2" it will hold 15 gallons.I weigh 210 and figured a 180# passengerfor full load and most rear CG with full fuel. thanks for any help. Raymond________________________________________________________________________________