in some cases the aerodynamic reasons for forward sweep are
to simultaneously reduce tip stall and achieve a lift
distribution closer to elliptical. Try it on Liftroll.xls.
The practical problem with forward sweep is that, under load,
wing bending makes the tip's angle of attack increase so t
Dave wrote:
> .so that the trim would remain the same if flown by a single
> pilot in the forward seat. The rear seat is on, or almost on, the CG.
That's right, but the reason for the sweep is to get the wing spar, or carry through
structure from going through the rear seat
pilot. A J-3
I was always told that the swept forward wings on two place full-size
sailplanes was so that the trim would remain the same if flown by a single
pilot in the forward seat. The rear seat is on, or almost on, the CG.
Dave Darling
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