At 06:57 PM 5/4/2004 +0200, you wrote: >Larry, The glider boys have found that if you matt your wing the drag is >appreciably less, hence before a contest you see all these fellows flatting >there wings with water paper. >No one has explained this to me satisfactorily, has anyone heard a >plausible explanation
Slow is not fast. To go slow, the best propeller is a long 1 bladed one, with a counter weight on the other side, turning at a slow rate. Parasite drag is not a significant factor at slow speeds, but air flow separation is because it can reduce lift. The matted wet paper creates the effect of mini vortex generators that help reduce the lift destroying air flow separation. Gliders GO SLOW! You, on the other hand want to go fast! Larry Severson Fountain Valley, CA 92708 (714) 968-9852 lar...@socal.rr.com
