Keith,

Mine is 34.5lbs dry. The throws suggested would give only about 25 degrees landing flap. At that level they would be providing much more lift than drag, and this plane really doesn't need any more lift as it does want to float a bit. Extending the flaps down to 40 adds more drag and allows you to use the throttle more effectively on final. The plane is a real baby to land, not "heavy metal" in any way.

I'm headin out for work now, but will get back with you later today.

David S
Team Jet Central