Drop and flight tests on NY-2 landing gears including measurements of vertical velocities at landing

von Peck, W. C.
Veröffentlicht 1931

Limitations of the pilot in applying forces to airplane controls

von Gough, M. N.
Veröffentlicht 1936

Air conditions close to the ground and the effect on airplane landings

von Thompson, F. L.
Veröffentlicht 1934