At 85 kts?Also as the angle of attack increases, the fuselage would be producing an increasing percentage of the total lift. With an ever increasing angle-of-attack wouldn't the center of pressure of the lifting body also move forward. Potentially even forward of the center of gravity.
In all fairness, it looks like the aileron gap might be sealed by a piano hinge on the upper surface and the flap appears to have a bit of a Fowler style that seals while retracted.Well, this old washed up glider pilot can see about 5-7 knots of forfeited cruise speed just by watching the first video.
A "legendary" designer who took the time to build a nice smooth composite wing certainly ought to understand the value of aileron gap seals.
Yes I did see that it was a Fowler/slotted flap, and I did see the dark shadow in the aileron gap that could have been an upper seal or a piano hinge.In all fairness, it looks like the aileron gap might be sealed by a piano hinge on the upper surface and the flap appears to have a bit of a Fowler style that seals while retracted.
Yes, Mr. Cohen's Spaceship 2 reminds us of Thomas H. Purcell's Flightsail VII which first flew in October 1970. The biggest difference was that Flightsail floated on two separate pontoons, one under each fuselage side ... sort of like conventional dual pontoons found under many bushplanes. A few other designers tried Brunelli-type seaplanes, but none got very far. I suspect that their bellies slammed into waves. ?????I like it....first serious lifting fuselage in years.