David Megginson wrote:
I've added support for wing twist to YASim. The twist allows you toDavid,
model washout during a stall, so that every stall doesn't result in a
violent spin. YASim also has an undocumented "incidence" property for
wings (in non-aerobatic planes, wings are not usually perfectly level
with the fuselage), which I've taken advantage of. Give the J3 Cub a
spin with the latest CVS code and base package, and you should find
its low-speed characteristics much more docile (as an added bonus, it
swerves less when the nose comes up on the takeoff roll, but I'm not
sure why).
The J3 Cub now has a steerable tailwheel as well.
fgfs --aircraft=j3cub
I just took the j3 for a spin. The stall characteristics are significantly improved. The response to rudder when a wing drops still seems less than in a real aircraft. This could be the range of my pedals.
I also noticed that the climb was very laborous and when I cut power, it did not glide far. Did you increase the drag, or is it that it defaults to the door open? The real cub has a rather shallow glide.
On another note. About the time that version 8.0 was released, I had submitted a change to the j3cub.xml animation for the ailerons that used interpolation to leave the bottom of the ailerons parallel with the bottom of the wing with the stick in neutral. At the same time the interpolation made up a larger angle than the down (differential as with the real cub). I know this does not affect the flight model, but it bugs me to look to the left or right and see both ailerons up several degrees. Also, if one views the plane from the rear and zooms in a little, the fact that both ailerons don't match the incidence of the wing is quite obvious. Was there a good reason to remove the interpolation?
Just had to ask,
Dave
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