TY  - JOUR
AB  - A flying machine having stationary wings and rotating wing systems, said stationary wings having openings corresponding to a part of said rotating wing systems, said rotating wing systems being adapted to be in part retracted into said openings and to, in part, laterally protrude from said stationary wings when retracted and to supplement by that part which laterally protrudes from said stationary wings, the lift produced by said stationary wings.
VL  - 9
IS  - 1
SN  - 0002-2667
DO  - 10.1108/eb030145
UR  - https://doi.org/10.1108/eb030145
PY  - 1937
Y1  - 1937/01/01
TI  - U.S. Patent Specifications
T2  - Aircraft Engineering and Aerospace Technology
PB  - MCB UP Ltd
SP  - 26
EP  - 26
Y2  - 2024/09/20
ER  -