Original Posted By: John Greenlee
Subject: Pietenpol-List: Toe in, toe out ?? alignment>I'm in the process of welding in the axles on my super ace, and amwondering>about the toe in/out alignment. I've think that I have decided on atoe out,>but how many degrees from datum should the axles be toed?>>OCB>>>________________________________________________________________________________
Pietenpol-List: Toe in, toe out ?? alignment
Pietenpol-List: Toe in, toe out ?? alignment
Original Posted By: Earl Myers
Subject: Pietenpol-List: Toe in, toe out ?? alignment>I'm in the process of welding in the axles on my super ace, and amwondering>about the toe in/out alignment. I've think that I have decided on atoe out,>but how many degrees from datum should the axles be toed?>>OCB>>>________________________________________________________________________________
Subject: Pietenpol-List: Toe in, toe out ?? alignment>I'm in the process of welding in the axles on my super ace, and amwondering>about the toe in/out alignment. I've think that I have decided on atoe out,>but how many degrees from datum should the axles be toed?>>OCB>>>________________________________________________________________________________
> Re: Toe in, toe out ?? alignment
Original Posted By:> oil can
Good explanation, and I concur. I run 0 degrees on my piet. At such slowlanding speeds there isn't a problem.Steve Eldredge> -----Original Message-----> Howard Wilkinson> Sent: Sunday, June 13, 1999 8:54 AM> To: Pietenpol Discussion> Subject: Re: Toe in, toe out ?? alignment>>> Bob:> As nobody has yet responded to this post let me give my two cents> worth. In an article by Marvin Hoppelworth in an old edition of Sport> Aviation discussing this matter Marvin recommends 1-2 degrees toe out.> The theory (and it holds true in application) is that when you turn to> the right on the ground the ground pressure on the left wheel> increases. If this wheel is toed in it will be pointing slightly in> the direction of the turn (to the right). This wheel now has more> traction and thus more directional influence and will tend to point> you tighter into your turn. The result is what is called oversteer in> the automotive world, and makes something difficult to control. If on> the other hand the wheel is toed out it will tend to pull you back> toward straight which results in a positive stability.> This applies only to tail draggers. On nose draggers the> situation is reversed just as steering in a vehicle with rear steering> is reversed....> I hope this helps understand the matter. I personally would use> very little toe out... just enough to be sure that toe in did not>> -----Original Message-----
Good explanation, and I concur. I run 0 degrees on my piet. At such slowlanding speeds there isn't a problem.Steve Eldredge> -----Original Message-----> Howard Wilkinson> Sent: Sunday, June 13, 1999 8:54 AM> To: Pietenpol Discussion> Subject: Re: Toe in, toe out ?? alignment>>> Bob:> As nobody has yet responded to this post let me give my two cents> worth. In an article by Marvin Hoppelworth in an old edition of Sport> Aviation discussing this matter Marvin recommends 1-2 degrees toe out.> The theory (and it holds true in application) is that when you turn to> the right on the ground the ground pressure on the left wheel> increases. If this wheel is toed in it will be pointing slightly in> the direction of the turn (to the right). This wheel now has more> traction and thus more directional influence and will tend to point> you tighter into your turn. The result is what is called oversteer in> the automotive world, and makes something difficult to control. If on> the other hand the wheel is toed out it will tend to pull you back> toward straight which results in a positive stability.> This applies only to tail draggers. On nose draggers the> situation is reversed just as steering in a vehicle with rear steering> is reversed....> I hope this helps understand the matter. I personally would use> very little toe out... just enough to be sure that toe in did not>> -----Original Message-----
Pietenpol-List: Re: Toe in, toe out ?? alignment
Original Posted By: oil can
Howard is correct with regards to toe in/out. With the Super Ace however,you need to be concerned with the camber angle. When built to the plans, theoutrigger gear has a tremendous amount of camber when unloaded and if youtouch down with a wing low, you can get into a situation where the the wheelgets tucked under and drags the side of your wheel rather than rolling. Ispeak from experience, I messed up my Super Ace pretty bad a couple of weeksago because of this quirk.-----Original Message-----Sent: Sunday, June 13, 1999 7:54 AMSubject: Pietenpol-List: Re: Toe in, toe out ?? alignmentBob: As nobody has yet responded to this post let me give my two centsworth. In an article by Marvin Hoppelworth in an old edition of SportAviation discussing this matter Marvin recommends 1-2 degrees toe out.The theory (and it holds true in application) is that when you turn tothe right on the ground the ground pressure on the left wheelincreases. If this wheel is toed in it will be pointing slightly inthe direction of the turn (to the right). This wheel now has moretraction and thus more directional influence and will tend to pointyou tighter into your turn. The result is what is called oversteer inthe automotive world, and makes something difficult to control. If onthe other hand the wheel is toed out it will tend to pull you backtoward straight which results in a positive stability. This applies only to tail draggers. On nose draggers thesituation is reversed just as steering in a vehicle with rear steeringis reversed.... I hope this helps understand the matter. I personally would usevery little toe out... just enough to be sure that toe in did not-----Original Message-----
Howard is correct with regards to toe in/out. With the Super Ace however,you need to be concerned with the camber angle. When built to the plans, theoutrigger gear has a tremendous amount of camber when unloaded and if youtouch down with a wing low, you can get into a situation where the the wheelgets tucked under and drags the side of your wheel rather than rolling. Ispeak from experience, I messed up my Super Ace pretty bad a couple of weeksago because of this quirk.-----Original Message-----Sent: Sunday, June 13, 1999 7:54 AMSubject: Pietenpol-List: Re: Toe in, toe out ?? alignmentBob: As nobody has yet responded to this post let me give my two centsworth. In an article by Marvin Hoppelworth in an old edition of SportAviation discussing this matter Marvin recommends 1-2 degrees toe out.The theory (and it holds true in application) is that when you turn tothe right on the ground the ground pressure on the left wheelincreases. If this wheel is toed in it will be pointing slightly inthe direction of the turn (to the right). This wheel now has moretraction and thus more directional influence and will tend to pointyou tighter into your turn. The result is what is called oversteer inthe automotive world, and makes something difficult to control. If onthe other hand the wheel is toed out it will tend to pull you backtoward straight which results in a positive stability. This applies only to tail draggers. On nose draggers thesituation is reversed just as steering in a vehicle with rear steeringis reversed.... I hope this helps understand the matter. I personally would usevery little toe out... just enough to be sure that toe in did not-----Original Message-----
Pietenpol-List: Re: Toe in, toe out ?? alignment
Original Posted By: Lightsey, Mark - TP2MAL
Yes, the Corben Super Ace. If you're interested in seeing "before" pictures,go to:http://members.tripod.com/Mark_Lightsey ... --Original Message-----Sent: Friday, June 11, 1999 8:54 AMSubject: Pietenpol-List: Re: Toe in, toe out ?? alignmentGuys, is this a CORBIN Super Ace you are talking about?Earl Myers-----Original Message-----
Yes, the Corben Super Ace. If you're interested in seeing "before" pictures,go to:http://members.tripod.com/Mark_Lightsey ... --Original Message-----Sent: Friday, June 11, 1999 8:54 AMSubject: Pietenpol-List: Re: Toe in, toe out ?? alignmentGuys, is this a CORBIN Super Ace you are talking about?Earl Myers-----Original Message-----
> Toe in, toe out ?? alignment
Original Posted By: steve(at)byu.edu
> Subject: Toe in, toe out ?? alignment>>> >I'm in the process of welding in the axles on my super ace, and am> wondering> >about the toe in/out alignment. I've think that I have decided on a> toe out,> >but how many degrees from datum should the axles be toed?> >> >OCB> >> >> >>>________________________________________________________________________________
> Subject: Toe in, toe out ?? alignment>>> >I'm in the process of welding in the axles on my super ace, and am> wondering> >about the toe in/out alignment. I've think that I have decided on a> toe out,> >but how many degrees from datum should the axles be toed?> >> >OCB> >> >> >>>________________________________________________________________________________