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The Posnansky-Fronius PF-1 White Knight is a Swiss-American FAI Standard Class high-wing T-tailed single-seat glider that was designed and constructed by Herman Posnansky and later greatly redesigned by Posnansky and Robert L. Fronius.

Empty Weight Lb
431
Designer
Herman Posnansky
Robert L. Fronius
Herman Posnansky and Robert L. Fronius
Wing Loading Note
4
Lists
* List of gliders
Aspect Ratio
16
Introduced
1963
Status
sole example still operational
Glide Ratio
34
Gross Weight Lb
660
Airfoil
NACA 64-415
Number Built
one
Crew
one
Span M
15
Sink Rate Ftmin
120
Origin
Switzerland
United States
National Origin
Switzerland
United States
Wing Area Sqft
153
Prime Units
imp
Similar Aircraft
*FFA Diamant
Category
Homebuilt aircraft
Swiss sailplanes 1960-1969
United States sailplanes 1960-1969

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