Posnansky White Knight PF-1

The White Knight was designed in 1963 while Posnansky was a student in Switzerland, but later has been substantially modified. It has a faired fixed landing gear and speed limiting dive brakes on both upper and lower surfaces, a center of gravity tow hook and a side-mounted control stick. The ship’s similarity in looks to the Swiss FFA Diamant is evident: it was designed during the same period when the predecessor to the Diamant was under development in Switzerland, and while that aircraft first flew with Schleicher Ka-6 wings, the White Knight used Schleicher Ka-8 wings.

Wing span: 15m / 49.2ft
Wing area: 14.21sq.m  / 153sq.ft
Aspect ratio: 15.9
Empty Weight: 195kg / 431lb
Payload: 104kg  / 229lb
Gross Weight: 300kg / 660lb
Wing Load:21.11kg/sq.m / 4.3lb/sq.ft
L/DMax: 34
Airfoil: NACA 64-415
Seats: 1
MinSink:0.61 m/s / 2.0 fps / 1.18 kt
No. Built: 1
Structure: glass/ foam sandwich fuselage, spruce spars, birch ply ribs, fabric cover.