In article ,
(N329DF) wrote:

no, the flaps on the -17 were mostly drag devices, and did not help generate
lift.

Well, they help a little. Book shortfield procedure calls for 10-20
degrees of flap. Flaps do allow you to liftoff a little sooner/slower.

--
Dale L. Falk

There is nothing - absolutely nothing - half so much worth doing
as simply messing around with airplanes.

http://home.gci.net/~sncdfalk/flying.html