stunthanger.com
Design => Stunt design => Topic started by: RogerGreene on November 18, 2014, 07:46:35 AM
-
What is the aerodynamic thought about having the leadouts over/under i.e. Bob Palmer's Thunderbird. Where up is on the bottom and down is on the top. I would make each adjustable, horizontally.
Any thought?
Roger
-
It seems like a good idea if your style involves hanging the plane from one line in extreme manovers. If you hang by one line it would be nice to have the lines come out together. But if you fly with tension on both lines I do not see any benefit from the up or down line being fore or aft.
I like to have the leadouts places so there is little or no bending and/or binding action on the leadout guides.
-
Thanks Paul.
-
It seems like a good idea if your style involves hanging the plane from one line in extreme manovers. If you hang by one line it would be nice to have the lines come out together. But if you fly with tension on both lines I do not see any benefit from the up or down line being fore or aft.\
You don't have to hang the airplane on one line. The same effect, to a lesser degree, happens any time you deflect the controls. Any time the controls are deflected, there is more tension on one line than the other, so the force applied to the leadout guide, it any, it higher on the "active" line.
Brett
-
A certain 11 time NATS (and 1 time World) Champion used over/under leadouts on at least his first 4-cycle "PW-51 Mustang". But nothing since. That tells me all I need to know. He does use individual leadout adjusters for front/back, and says that makes a difference. I have no hope of ever being able to tell, but would probably do it anyway. H^^ Steve
-
Thanks Steve, I will incorporate them on this winters build.
Roger