John Newton
Well-Known Member
Hi all,
I have recently been looking into the design of swept flying wings and have built an R/C testbed model to test out my ideas. It flies well enough but is prone to tip stalling. I am retrofitting it with a NASA style drooped leading edge over the outer 1/3rd of the semispan in a bid to eliminate the tip stall without increading the overall drag too much. Since the NASA NTRS server is still down I am struggling to find any reports on Leading Edge droop. My question is how the Leading edge droop will affect the lift distribution and drag at various lift co-efficients and do I need to increase the width of the winglets any when adding the droop? My other question is which is better from a performance point of view, outboard slots as per the Northrop XB35 or outboard leading edge droop?
John
I have recently been looking into the design of swept flying wings and have built an R/C testbed model to test out my ideas. It flies well enough but is prone to tip stalling. I am retrofitting it with a NASA style drooped leading edge over the outer 1/3rd of the semispan in a bid to eliminate the tip stall without increading the overall drag too much. Since the NASA NTRS server is still down I am struggling to find any reports on Leading Edge droop. My question is how the Leading edge droop will affect the lift distribution and drag at various lift co-efficients and do I need to increase the width of the winglets any when adding the droop? My other question is which is better from a performance point of view, outboard slots as per the Northrop XB35 or outboard leading edge droop?
John
