Original Posted By: EmchAir(at)aol.com
Subject: Pietenpol-List: RiggingPieters,I hope I open a big can with this pending problem. For the last week and a couple of days I'm buried in body and mind trying to rig a smoooooooth and even feel to my elevators. I must have the geometry reversed, up side down, backward or something.The drag and friction on the stick would make it unflyable, in my opinion. Have any of you had this trouble when rigging? Rudders OK, Aelirons OK but those elevators won't get Corky to the coast let alone across the pond no matter how many tanks and floatation.Seriously, if someone has conqured this little hill won't you share the secret with this ole dumd bunny.Corky in La building up his muscles so he can move his stick.________________________________________________________________________________
Pietenpol-List: Rigging
Re: Pietenpol-List: Rigging
Original Posted By: Kip & Beth Gardner
Subject: Re: Pietenpol-List: RiggingIn a message dated 1/15/02 4:48:31 PM Pacific Standard Time, Isablcorky(at)aol.com writes:> Pieters,> I hope I open a big can with this pending problem. For the last week and a > couple of days I'm buried in body and mind trying to rig a smoooooooth and > even feel to my elevators. I must have the geometry reversed, up side down, > > backward or something.The drag and friction on the stick would make it > unflyable, in my opinion. Have any of you had this trouble when rigging? > Rudders OK, Aelirons OK but those elevators won't get Corky to the coast > let > alone across the pond no matter how many tanks and floatation.> Seriously, if someone has conqured this little hill won't you share the > secret with this ole dumd bunny.> Corky in La building up his muscles so he can move his stick.> > > Corky,Haven't had or heard of that problem. Find the part of the elevator system that has the friction and give more detail. Doug Bryant Wichita Ks________________________________________________________________________________Date: Tue, 15 Jan 2002 21:57:01 -0500
Subject: Re: Pietenpol-List: RiggingIn a message dated 1/15/02 4:48:31 PM Pacific Standard Time, Isablcorky(at)aol.com writes:> Pieters,> I hope I open a big can with this pending problem. For the last week and a > couple of days I'm buried in body and mind trying to rig a smoooooooth and > even feel to my elevators. I must have the geometry reversed, up side down, > > backward or something.The drag and friction on the stick would make it > unflyable, in my opinion. Have any of you had this trouble when rigging? > Rudders OK, Aelirons OK but those elevators won't get Corky to the coast > let > alone across the pond no matter how many tanks and floatation.> Seriously, if someone has conqured this little hill won't you share the > secret with this ole dumd bunny.> Corky in La building up his muscles so he can move his stick.> > > Corky,Haven't had or heard of that problem. Find the part of the elevator system that has the friction and give more detail. Doug Bryant Wichita Ks________________________________________________________________________________Date: Tue, 15 Jan 2002 21:57:01 -0500
RE: Pietenpol-List: Rigging
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Corky, one thing I found on my control system was that it was easy for thecables to slip past the pulleys on the torque tube, wedging in between thepulley and the pulley bracket. It would produce the kind of friction youare describing. I installed cable guards on all the pulleys so the cablescannot slip off and jam. Maybe this could be your problem.Jack in NC wishing he was so far along to be rigging the plane. -----Original Message-----
Corky, one thing I found on my control system was that it was easy for thecables to slip past the pulleys on the torque tube, wedging in between thepulley and the pulley bracket. It would produce the kind of friction youare describing. I installed cable guards on all the pulleys so the cablescannot slip off and jam. Maybe this could be your problem.Jack in NC wishing he was so far along to be rigging the plane. -----Original Message-----
Re: Pietenpol-List: Rigging
Original Posted By: Isablcorky(at)aol.com
Subject: Re: Pietenpol-List: RiggingThanks Doug,Been hunting for that part for 2 weeksCorky________________________________________________________________________________
Subject: Re: Pietenpol-List: RiggingThanks Doug,Been hunting for that part for 2 weeksCorky________________________________________________________________________________
Re: Pietenpol-List: Rigging
Original Posted By: "Tom & Michelle Brant"
Subject: Re: Pietenpol-List: RiggingThanks Jack,I have guards etc on all pulleys. I might try packing them with cup grease like I do on my Model T bearings. Corky in La________________________________________________________________________________Date: Tue, 15 Jan 2002 22:49:20 -0800
Subject: Re: Pietenpol-List: RiggingThanks Jack,I have guards etc on all pulleys. I might try packing them with cup grease like I do on my Model T bearings. Corky in La________________________________________________________________________________Date: Tue, 15 Jan 2002 22:49:20 -0800
Re: Pietenpol-List: Rigging
Original Posted By: Doug413(at)aol.com
Subject: Re: Pietenpol-List: RiggingIn a message dated 1/15/02 7:40:49 PM Pacific Standard Time, Isablcorky(at)aol.com writes:> Thanks Doug,> Been hunting for that part for 2 weeks> Corky> > > Corky,I can think of a few probable causes for the tight elevator. Could be too tight at the control stick hinge point, although not likely. Elevator bellcrank bearing surfaces could be too tight and binding the pivet shaft. The control cables from the stick thru the pulleys to the elevator bellcrank could be rigged too tightly. Elevator cables could be too tight. Rigging should be just tight enough to not bind anywhere in the complete travel. Could be an accumulation of all this plus the weight of the elevator may make it appear tight. Doug Bryant Wichita Ks________________________________________________________________________________
Subject: Re: Pietenpol-List: RiggingIn a message dated 1/15/02 7:40:49 PM Pacific Standard Time, Isablcorky(at)aol.com writes:> Thanks Doug,> Been hunting for that part for 2 weeks> Corky> > > Corky,I can think of a few probable causes for the tight elevator. Could be too tight at the control stick hinge point, although not likely. Elevator bellcrank bearing surfaces could be too tight and binding the pivet shaft. The control cables from the stick thru the pulleys to the elevator bellcrank could be rigged too tightly. Elevator cables could be too tight. Rigging should be just tight enough to not bind anywhere in the complete travel. Could be an accumulation of all this plus the weight of the elevator may make it appear tight. Doug Bryant Wichita Ks________________________________________________________________________________
Re: Pietenpol-List: Plywood gussets
Original Posted By: "Christian Bobka"
Subject: Re: Pietenpol-List: Plywood gussetsIn a message dated 1/15/02 8:56:08 PM Pacific Standard Time, tmbrant(at)uswest.net writes:> Something I forgot to get opinions on... I need to purchase some> plywood for gusset material. I have a source that sells the same Okume> plywood as Aircraft Spruce sells for about half the price. It is in> metric sizes that are slightly larger or smaller substitutes for the> imperial equivalent. Would this be an acceptable subsitute for gussets,> and fuse side material etc.??? Or what type is recommended for use in> the gussets and fuse side? It seems to me that somewhere on the plans> it called out birch or mahogony but I haven't found it tonight.> > Any comments would be appreciated. Thanks.> > Tom Brant> MLPS> > > Tom,Three MM birch or mahagany plywood will do fine for gussets and sides. Not too sure I like the idea of the 7/8x 1 longerons. I don't believe I would do that and if I did, I would use fir and place the 1 inch dinension flat so the width for the cabane attachments and engine mount plates would be full to print and the landing gear lug would bear across a full inch. Doug Bryant Wichita Ks ________________________________________________________________________________
Subject: Re: Pietenpol-List: Plywood gussetsIn a message dated 1/15/02 8:56:08 PM Pacific Standard Time, tmbrant(at)uswest.net writes:> Something I forgot to get opinions on... I need to purchase some> plywood for gusset material. I have a source that sells the same Okume> plywood as Aircraft Spruce sells for about half the price. It is in> metric sizes that are slightly larger or smaller substitutes for the> imperial equivalent. Would this be an acceptable subsitute for gussets,> and fuse side material etc.??? Or what type is recommended for use in> the gussets and fuse side? It seems to me that somewhere on the plans> it called out birch or mahogony but I haven't found it tonight.> > Any comments would be appreciated. Thanks.> > Tom Brant> MLPS> > > Tom,Three MM birch or mahagany plywood will do fine for gussets and sides. Not too sure I like the idea of the 7/8x 1 longerons. I don't believe I would do that and if I did, I would use fir and place the 1 inch dinension flat so the width for the cabane attachments and engine mount plates would be full to print and the landing gear lug would bear across a full inch. Doug Bryant Wichita Ks ________________________________________________________________________________
Re: Pietenpol-List: Rigging
Original Posted By:
Corky,I would not pack any grease into the pulley gards because the grease willattract dirt and dust and this could ultimately jam a pulley. The dirt willalso work into the cable and begin to wear the metal down to the point offailure. Do what doug says and find the offender and fix it.As your mother said, "If you can not find the time to do it right the firsttime, how will you ever find the time to do it again?"Chris Bobka----- Original Message -----
Corky,I would not pack any grease into the pulley gards because the grease willattract dirt and dust and this could ultimately jam a pulley. The dirt willalso work into the cable and begin to wear the metal down to the point offailure. Do what doug says and find the offender and fix it.As your mother said, "If you can not find the time to do it right the firsttime, how will you ever find the time to do it again?"Chris Bobka----- Original Message -----
Re: Pietenpol-List: Plywood gussets
Original Posted By: "Tom & Michelle Brant"
Tom,The okume that Wayne Meier sells is right on the money. The "plywood" of1930 is a bit different from what is out there today. It was much lowerquality in regards to glue. The okume is good stuff, just different.Chris Bobka----- Original Message -----
Tom,The okume that Wayne Meier sells is right on the money. The "plywood" of1930 is a bit different from what is out there today. It was much lowerquality in regards to glue. The okume is good stuff, just different.Chris Bobka----- Original Message -----
Re: Pietenpol-List: Rigging
Original Posted By: "Greg Cardinal"
Re: Pietenpol-List: Rigging
Original Posted By: "Jim Kinsella"
Subject: Re: Pietenpol-List: RiggingGreg,That tube idea hit me about 3 this morning as I was designing instead of sleeping. If you could get me a few measurements and descriptions I would sure like to try it as nothing is better than a solid control link.Corky in La accepting all these good ideas and help with lots of appreciation.________________________________________________________________________________
Subject: Re: Pietenpol-List: RiggingGreg,That tube idea hit me about 3 this morning as I was designing instead of sleeping. If you could get me a few measurements and descriptions I would sure like to try it as nothing is better than a solid control link.Corky in La accepting all these good ideas and help with lots of appreciation.________________________________________________________________________________
> Re: Pietenpol-List: Rigging
Original Posted By: "Jim Kinsella"
Corky:Sounds like you have your cables too tight. One of them (stick to walking beam) will actually become slack as they approach the extreams of stick movement. The same is true for the cables from the walking beam to the elevator horns. Not to worry! Yes, new aircraft designs eleminate this, and yes, you can change Bernies design to eliminate it, but it works fine just the way it is!!PS If it still does not operate smooth and easily, there must be another problem.Jim NX799JK>From: "Greg Cardinal" >Reply-To: pietenpol-list(at)matronics.com>To: >Subject: Re: Pietenpol-List: Rigging>Date: Wed, 16 Jan 2002 07:45:46 -0600>>>>Corky,>Dale and I had a lot of friction in the ailerons. We investigated and found >that a lot of the friction was caused by the pulleys rubbing against their >respective fittings. After some "adjusting" with a hammer and wedge the >ailerons are much better.>We eliminated pulleys in our elevator control by using a push-pull tube >from the aft stick to the walking beam. That moves very smoothly.>>Greg Cardinal in Minneapolis>> >>> Isablcorky(at)aol.com 01/15 6:46 PM >>>>>Pieters,>I hope I open a big can with this pending problem. For the last week and a>couple of days I'm buried in body and mind trying to rig a smoooooooth and>even feel to my elevators. I must have the geometry reversed, up side down,>backward or something.The drag and friction on the stick would make it>unflyable, in my opinion. Have any of you had this trouble when rigging?>Rudders OK, Aelirons OK but those elevators won't get Corky to the coast >let>alone across the pond no matter how many tanks and floatation.>Seriously, if someone has conqured this little hill won't you share the>secret with this ole dumd bunny.>Corky in La building up his muscles so he can move his stick.>>Send and receive Hotmail on your mobile device: http://mobile.msn.com________________________________________________________________________________
Corky:Sounds like you have your cables too tight. One of them (stick to walking beam) will actually become slack as they approach the extreams of stick movement. The same is true for the cables from the walking beam to the elevator horns. Not to worry! Yes, new aircraft designs eleminate this, and yes, you can change Bernies design to eliminate it, but it works fine just the way it is!!PS If it still does not operate smooth and easily, there must be another problem.Jim NX799JK>From: "Greg Cardinal" >Reply-To: pietenpol-list(at)matronics.com>To: >Subject: Re: Pietenpol-List: Rigging>Date: Wed, 16 Jan 2002 07:45:46 -0600>>>>Corky,>Dale and I had a lot of friction in the ailerons. We investigated and found >that a lot of the friction was caused by the pulleys rubbing against their >respective fittings. After some "adjusting" with a hammer and wedge the >ailerons are much better.>We eliminated pulleys in our elevator control by using a push-pull tube >from the aft stick to the walking beam. That moves very smoothly.>>Greg Cardinal in Minneapolis>> >>> Isablcorky(at)aol.com 01/15 6:46 PM >>>>>Pieters,>I hope I open a big can with this pending problem. For the last week and a>couple of days I'm buried in body and mind trying to rig a smoooooooth and>even feel to my elevators. I must have the geometry reversed, up side down,>backward or something.The drag and friction on the stick would make it>unflyable, in my opinion. Have any of you had this trouble when rigging?>Rudders OK, Aelirons OK but those elevators won't get Corky to the coast >let>alone across the pond no matter how many tanks and floatation.>Seriously, if someone has conqured this little hill won't you share the>secret with this ole dumd bunny.>Corky in La building up his muscles so he can move his stick.>>Send and receive Hotmail on your mobile device: http://mobile.msn.com________________________________________________________________________________
Re: Pietenpol-List: Rigging
Original Posted By: "Gary McNeel, Jr."
> RE: Pietenpol-List: Landing gear question...
Original Posted By: "Gary McNeel, Jr."