Synonyms were used for:
Hubschrauber
Search without synonyms:
keywords:("Hubschrauber")
Model tests on the economy and effectiveness of helicopter propellers
Aerodynamic analysis of gyroplane rotating-wing system
Wind-tunnel tests of 10-foot-diameter gyroplane rotor
Gyroplane -- Its principles and its possibilities
Dynamic stability of helicopter with hinged rotor blades
Contribution to aerodynamics of rotating wing aircraft
Static-thrust tests of six rotor-blade designs on helicopter in Langley full-scale tunnel
Charts for helicopter-performance estimation
Evaluation of induced-velocity field of idealized helicopter rotor