Same result, higher camber than intended. Camber is 'height' of wing
curvature from the base as a percent of the chord running PARALLEL to
the direction of flight. If you take that simplex air foil at 4% and
angle it to the flight direction its still taller than it would be if
you oriented the rib along the flight direction.
Note, no opinion on whether that's good or bad, as another poster said,
I think camber within a reasonable range has a very small effect on
flight duration. So, unless you are scrabbling for that last percent
or so there are many more important things to worry about.
Jeff Anderson
Livonia, MI
--- In Indoor_Construction_at_yahoogroups.com, Neil Dennis <wombatt@...>
wrote:
>
> FWIW, I use a "simplex" airfoil for the warped ribs we used in SO
(have
> a set of forms from 4% to12% camber). It's a parabolic shape that
gives
> the same camber whatever length the rib, got a neat program that
draws a
> template. Wonder how that would work on geodetic ?
>
> We did a bit of a test with different cambers on the SO planes, I did
> notice the higher camber flew slower, never got time to really prove
much.
>
>
> wombat
>
Received on Mon Oct 29 2007 - 11:38:59 CET
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:45 CET