Add to ORKGThe average velocity of helicopter blades relative to the air is greater than that of airplane wings. The helicopter may turn out to be more economical than the airplane wing for extreme velocities of horizontal flight, the airplane then requiring a very great speed range
Aerodynamic tests were made of seven full-scale 10-foot-diameter propellers of recent design compris...
The article presents results of simulations concerning possibilities of rotorcraft performance enhan...
This report, prepared at the request of the NACA, describes tests of three metal model propellers, i...
The empirical relation between the induced velocity, thrust, and rate of vertical descent of a helic...
The empirical relation between the induced velocity, thrust, and rate of vertical descent of a helic...
Rough conventional, smooth conventional, and laminar-flow or low-drag sections were tested. The item...
An adjustable blade metal propeller was tested at five different angle settings, forming a series va...
This report describes the tests of five adjustable blade metal model propellers both in a free wind ...
The tests on these model propellers were undertaken for the purpose of determining the performance c...
This report gives the full-scale aerodynamic characteristics of five different aluminum alloy propel...
Theoretical studies have predicted that operation of helicopter rotor beyond certain combinations of...
This report contains a description of a new and useful method suitable for the design of propellers ...
This report contains the results of tests to determine the thrust (pull) and torque characteristics ...
Hovering characteristics of rotor having airfoil section designed for utility type helicopte
Wind tunnel testing of helicopters, and test program for Polish helicopter industr
Aerodynamic tests were made of seven full-scale 10-foot-diameter propellers of recent design compris...
The article presents results of simulations concerning possibilities of rotorcraft performance enhan...
This report, prepared at the request of the NACA, describes tests of three metal model propellers, i...
The empirical relation between the induced velocity, thrust, and rate of vertical descent of a helic...
The empirical relation between the induced velocity, thrust, and rate of vertical descent of a helic...
Rough conventional, smooth conventional, and laminar-flow or low-drag sections were tested. The item...
An adjustable blade metal propeller was tested at five different angle settings, forming a series va...
This report describes the tests of five adjustable blade metal model propellers both in a free wind ...
The tests on these model propellers were undertaken for the purpose of determining the performance c...
This report gives the full-scale aerodynamic characteristics of five different aluminum alloy propel...
Theoretical studies have predicted that operation of helicopter rotor beyond certain combinations of...
This report contains a description of a new and useful method suitable for the design of propellers ...
This report contains the results of tests to determine the thrust (pull) and torque characteristics ...
Hovering characteristics of rotor having airfoil section designed for utility type helicopte
Wind tunnel testing of helicopters, and test program for Polish helicopter industr
Aerodynamic tests were made of seven full-scale 10-foot-diameter propellers of recent design compris...
The article presents results of simulations concerning possibilities of rotorcraft performance enhan...
This report, prepared at the request of the NACA, describes tests of three metal model propellers, i...