It is indeed TC! (Sorry LM!)
During the twelve years of research that culminated in the construction of the XV-11A Marvel, the Mississippi State University used a number of aircraft to research and prove Boundary Layer Control principles. One of those aircraft was the MSU-Piper YL-21. The aircraft used was one of the two YL-21s built (serial 51-6496). This aircraft had a BLC system that sucked air used in the wing system via a double-windscreen and around the cowl to keep the engine cool, hence the deep nature of the cowl. The intakes of the cowl were sealed. Full BLC was available at high RPM at take off but not for landing. This system gave a 42 percent reduced take off roll and a stall speed of 28 mph. It had a TAS of 35 mph. The MSU fitted a sprung tri-cycle landing gear.
I don't know how you do it mate! I'll flatter you by saying that you have a canny knack of getting these challenges. Your head must be like an encyclopedia of aviation given that you don't have time aside from your short tea breaks!!! I had been wondering if you were a syndicate of collective knowledge!!!
Well, over to you . YOUR CONTROL
Last edited by Ridge Runner; 14th Jul 2010 at 09:37.