Józef Kass of Warszawa built in France a “self-stable” monoplane, the Kass Ery I, though there are no conclusive information about its flights;
Span: 32’8″
Length: 29’6″
Kass 1911 Ery I
Józef Kass of Warszawa built in France a “self-stable” monoplane, the Kass Ery I, though there are no conclusive information about its flights;
Span: 32’8″
Length: 29’6″
All Aero 