Original Posted By: Chad Johnson
Subject: Pietenpol-List: Re: Rigging advice>On Fri, 25 Jun 1999, Ted Brousseau wrote:>>> Hi,>>>> Just replaced the alieron cables and the crossed drag wires thatrun from>> the bottom of the fuselage up the struts to the wing.>>>> Question 1 - I heard that you can squeeze up to 10 knots byrigging the>> alierons either slightly up or down. Any truth to this? What isproper>> alignment of alierons. Just kidding about the 10 knots. But, evena 1/4>> extra mph would be nice for the OSH trip.>>Although it would not be reccomended on the ailerons, a lot of planesdo>this with the flaps. It will indeed reduce drag and increase speedbut it>may also bring with it some strange tip stall characteristics. Maybea>couple of degrees wouldn't hurt as long as you experimented with itfirst.>It may actually give you a better tip stall (developing later thanthe>inboard stall).>>Ken>>________________________________________________________________________________
Pietenpol-List: Rigging advice
Pietenpol-List: Rigging advice
Original Posted By: Randall Reihing
Hi,Just replaced the alieron cables and the crossed drag wires that run fromthe bottom of the fuselage up the struts to the wing.Question 1 - I heard that you can squeeze up to 10 knots by rigging thealierons either slightly up or down. Any truth to this? What is properalignment of alierons. Just kidding about the 10 knots. But, even a 1/4extra mph would be nice for the OSH trip.Question 2 - Is there a proper way to tighten the cross wires? My plansthat came with the plane are silent on both of these details.Thanks,Ted________________________________________________________________________________
Hi,Just replaced the alieron cables and the crossed drag wires that run fromthe bottom of the fuselage up the struts to the wing.Question 1 - I heard that you can squeeze up to 10 knots by rigging thealierons either slightly up or down. Any truth to this? What is properalignment of alierons. Just kidding about the 10 knots. But, even a 1/4extra mph would be nice for the OSH trip.Question 2 - Is there a proper way to tighten the cross wires? My plansthat came with the plane are silent on both of these details.Thanks,Ted________________________________________________________________________________
Pietenpol-List: Re: Rigging advice
Original Posted By: Michael D Cuy
On Fri, 25 Jun 1999, Ted Brousseau wrote:> Hi,> > Just replaced the alieron cables and the crossed drag wires that run from> the bottom of the fuselage up the struts to the wing.> > Question 1 - I heard that you can squeeze up to 10 knots by rigging the> alierons either slightly up or down. Any truth to this? What is proper> alignment of alierons. Just kidding about the 10 knots. But, even a 1/4> extra mph would be nice for the OSH trip.Although it would not be reccomended on the ailerons, a lot of planes dothis with the flaps. It will indeed reduce drag and increase speed but itmay also bring with it some strange tip stall characteristics. Maybe acouple of degrees wouldn't hurt as long as you experimented with it first.It may actually give you a better tip stall (developing later than theinboard stall). Ken________________________________________________________________________________
On Fri, 25 Jun 1999, Ted Brousseau wrote:> Hi,> > Just replaced the alieron cables and the crossed drag wires that run from> the bottom of the fuselage up the struts to the wing.> > Question 1 - I heard that you can squeeze up to 10 knots by rigging the> alierons either slightly up or down. Any truth to this? What is proper> alignment of alierons. Just kidding about the 10 knots. But, even a 1/4> extra mph would be nice for the OSH trip.Although it would not be reccomended on the ailerons, a lot of planes dothis with the flaps. It will indeed reduce drag and increase speed but itmay also bring with it some strange tip stall characteristics. Maybe acouple of degrees wouldn't hurt as long as you experimented with it first.It may actually give you a better tip stall (developing later than theinboard stall). Ken________________________________________________________________________________
Pietenpol-List: Re: Rigging advice
Original Posted By: Michael D Cuy
Ted- Upon the recommendation of our local IA, I rigged myailerons to be about 1/4" to 3/8" droop and in flight they arein perfect alignment w/ the wing. These older guys are priceless.Mike C. ________________________________________________________________________________
Ted- Upon the recommendation of our local IA, I rigged myailerons to be about 1/4" to 3/8" droop and in flight they arein perfect alignment w/ the wing. These older guys are priceless.Mike C. ________________________________________________________________________________
-- Re: Rigging advice
Original Posted By: Randall Reihing
--Subject: Re: Rigging advice>Ted- Upon the recommendation of our local IA, I rigged my>ailerons to be about 1/4" to 3/8" droop and in flight they are>in perfect alignment w/ the wing. These older guys are priceless.>>Mike C. I did that & got the same results as Mike C. Mike B - Piet N687MB ( Mr Sam )________________________________________________________________________________
--Subject: Re: Rigging advice>Ted- Upon the recommendation of our local IA, I rigged my>ailerons to be about 1/4" to 3/8" droop and in flight they are>in perfect alignment w/ the wing. These older guys are priceless.>>Mike C. I did that & got the same results as Mike C. Mike B - Piet N687MB ( Mr Sam )________________________________________________________________________________
Pietenpol-List: Re: Rigging advice
Original Posted By: Ken Beanlands
Ken: Molt Taylor did the reflex thing on a few of his designs.... theone that comes to mind is the Mini Imp which uses full span flaperonswhich may be reflexed slightly upward to increase cruise speed. Ibelieve the aileron function of these is up only. The net effect is avariable camber airfoil. Flaps deployed of course increases effectivecamber, and flaps reflexed decreases camber. there is little doubt inmy mind that reflexing the ailerons (normal ailerons) would increasestall in that area which is not where you want your wing to stallfirst. I personally don't feel that any increase in performance atcruise from doing this would offset the nasty side effect of prematuretip stall. I don't know about you, but I don't particularly likerapid wing drop during stalls. There are enough planes out there withnasty stall habits without modifying the Piet to make it one of them.Now if full span flaperons were used the complexion of things would beconsiderably different, but the advantages for an aircraft such as thePiet would probably be minimal. Those interested in high speed cruiseshould probably be in the Lancair club, not the Pietenpol club ;-)H.W.-----Original Message-----
Ken: Molt Taylor did the reflex thing on a few of his designs.... theone that comes to mind is the Mini Imp which uses full span flaperonswhich may be reflexed slightly upward to increase cruise speed. Ibelieve the aileron function of these is up only. The net effect is avariable camber airfoil. Flaps deployed of course increases effectivecamber, and flaps reflexed decreases camber. there is little doubt inmy mind that reflexing the ailerons (normal ailerons) would increasestall in that area which is not where you want your wing to stallfirst. I personally don't feel that any increase in performance atcruise from doing this would offset the nasty side effect of prematuretip stall. I don't know about you, but I don't particularly likerapid wing drop during stalls. There are enough planes out there withnasty stall habits without modifying the Piet to make it one of them.Now if full span flaperons were used the complexion of things would beconsiderably different, but the advantages for an aircraft such as thePiet would probably be minimal. Those interested in high speed cruiseshould probably be in the Lancair club, not the Pietenpol club ;-)H.W.-----Original Message-----
Pietenpol-List: Re: Rigging advice
Original Posted By: Gary Gower
>Ted- Upon the recommendation of our local IA, I rigged my>ailerons to be about 1/4" to 3/8" droop and in flight they are>in perfect alignment w/ the wing. These older guys are priceless.>>Mike C. >Amen.________________________________________________________________________________
>Ted- Upon the recommendation of our local IA, I rigged my>ailerons to be about 1/4" to 3/8" droop and in flight they are>in perfect alignment w/ the wing. These older guys are priceless.>>Mike C. >Amen.________________________________________________________________________________
Pietenpol-List: Re: Rigging advice
Original Posted By: Steve W
Thanks Gary, Mike, Mike and Ken. The ailerons will be done in the morning.Now, the question about the cross wires. Just tune them equally like a sailboat? I assume the wings and struts do all the aligning and the wires justput tension on it? Or can they change any angles if done wrong?TedThis annual was started on April 1st. I hope even the Pietenpol puristswill like this GN-1 after all the work we've done on it.>>Ted- Upon the recommendation of our local IA, I rigged my>>ailerons to be about 1/4" to 3/8" droop and in flight they are>>in perfect alignment w/ the wing. These older guys are priceless.>>>>Mike C. >>>>Amen.>>________________________________________________________________________________
Thanks Gary, Mike, Mike and Ken. The ailerons will be done in the morning.Now, the question about the cross wires. Just tune them equally like a sailboat? I assume the wings and struts do all the aligning and the wires justput tension on it? Or can they change any angles if done wrong?TedThis annual was started on April 1st. I hope even the Pietenpol puristswill like this GN-1 after all the work we've done on it.>>Ted- Upon the recommendation of our local IA, I rigged my>>ailerons to be about 1/4" to 3/8" droop and in flight they are>>in perfect alignment w/ the wing. These older guys are priceless.>>>>Mike C. >>>>Amen.>>________________________________________________________________________________
Pietenpol-List: Re: Rigging advice
Original Posted By: Earl Myers
Ted Brousseau wrote:> > Thanks Gary, Mike, Mike and Ken. The ailerons will be done in the morning.> > Now, the question about the cross wires. Just tune them equally like a sail> boat? I assume the wings and struts do all the aligning and the wires just> put tension on it? Or can they change any angles if done wrong?> > Ted> > This annual was started on April 1st. I hope even the Pietenpol purists> will like this GN-1 after all the work we've done on it.> > >>Ted- Upon the recommendation of our local IA, I rigged my> >>ailerons to be about 1/4" to 3/8" droop and in flight they are> >>in perfect alignment w/ the wing. These older guys are priceless.> >>> >>Mike C.> >>> >> >Amen.> >> >> >Hi Guys!Any of you GN-1 guys interested in putting together a list of GN-1builders? I've got a lot of server space and will be glad to compile alist... and pictures, if my space doesn't run out.For you Piet drivers, I'll try to post a few more pictures of PoplarPiet this weekend. If you aren't aware, that is the Piet driven by a2.5 L Chevy engine. Doing great, flies great, now has a Scout brotheron the way...Have a Great weekend, all.Bert Conolyhttp://www.bwmproductions.com/GN1 (note caps)bwm(at)planttel.net________________________________________________________________________________
Ted Brousseau wrote:> > Thanks Gary, Mike, Mike and Ken. The ailerons will be done in the morning.> > Now, the question about the cross wires. Just tune them equally like a sail> boat? I assume the wings and struts do all the aligning and the wires just> put tension on it? Or can they change any angles if done wrong?> > Ted> > This annual was started on April 1st. I hope even the Pietenpol purists> will like this GN-1 after all the work we've done on it.> > >>Ted- Upon the recommendation of our local IA, I rigged my> >>ailerons to be about 1/4" to 3/8" droop and in flight they are> >>in perfect alignment w/ the wing. These older guys are priceless.> >>> >>Mike C.> >>> >> >Amen.> >> >> >Hi Guys!Any of you GN-1 guys interested in putting together a list of GN-1builders? I've got a lot of server space and will be glad to compile alist... and pictures, if my space doesn't run out.For you Piet drivers, I'll try to post a few more pictures of PoplarPiet this weekend. If you aren't aware, that is the Piet driven by a2.5 L Chevy engine. Doing great, flies great, now has a Scout brotheron the way...Have a Great weekend, all.Bert Conolyhttp://www.bwmproductions.com/GN1 (note caps)bwm(at)planttel.net________________________________________________________________________________