I have a ready to Fly /wet Biplane at 26lbs......Using the fish-o meter I am getting 24lbs of pull (thrust) from my engine....But my vertical ( assuming from drag) is very very limited.......What effect does the extra wing and such play into this drag factor......I knoweven if I had 30lbs of thrust ...I don't think the vert would be great.......I've heard that there is no such thing as an overpowered Biplane.....I'm believing it......But I'm trying to figure the Max limit to get best performance from the airframe.....Oh yea...wing area is about 2000sq in