White Knight PF-1 Posnansky   

General Details
Manufacturer: Posnansky
Plane Name:

White Knight PF-1

Classified as: Unclassified
Country Of Origin: U S A
Designer: Hernan Posnansky
No. of Seats 1
No. Built 1
L/DMax: 34
MinSink: 0.61 m/s / 2.0 fps / 1.18 kt


Span Area Empty Weight Payload Gross Weight Wing Load Water Ballast
m ft sq.m sq.ft kg lb. kg lb. kg lb. kg
kg lb.
15 49.2 14.21 153 195 431 104 229 300 660 21.11 4.3 0 0
Aspect ratio: 15.9
Airfoil: NACA 64-415
Structure: glass/ foam sandwich fuselage, spruce spars, birch ply ribs, fabric cover.

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.


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