BKB-1 MAIN DESIGN DATA AND PERFORMANCE ESTIMATES


Span

b = 39

Wing Area

S = 155 ft2

Aspect Ratio

AR = 9.81

Wing Chord

c = 4 ft

Airfoil

NACA 8-H-12

L.E. Sweep

13o

Weight Empty

We = 370 lb

Flight Weight (max)

W = 573 lb

Wing Loading

W/S = 3.68 lb/ft2

Max. Glide Ratio

L/Dmax = 28
@ Vc = 51 mph

Min. Sink Rate

wmin = 150 ft/min
@ Vc = 43 mph

Stall Speed

Vc = 43 mph

Max. Lift Coefficient

CLmax = 1.24

Min Drag Coefficient

CDmin = 0.0125