HORTEN IV - DESIGN ESTIMATES


The Horten IV, at it's conception in 1940, was expected to be one of the highest performance sailplanes in the world.

Span

b = 66.6 ft

Wing Area

S = 203.3 ft2

Aspect Ratio

AR = 21.8

L.E. Sweep

20

Weight Empty

We = 551 lb

Flight Weight (max.)

W = 727 lb

Wing Loading

W/S =3.58 Ib/ft2

Max. Glide Ratio

L/Dmax = 37
@Vc = 45.3 mph

Min. Sink Rate

wmin = 98.4 ft/min
@Vc = 37 3 mph

Stall Speed

Vc = 34.1 mph

Max. Lift Coefficient

CLmax = 1.20

Img0003