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| Author | : Paul J. Carpenter |
| Publisher | : |
| Total Pages | : 642 |
| Release | : 1950 |
| Genre | : Helicopters |
| ISBN | : |
The rotor system investigated is a servocontrol type with blades fastened rigidly at the hub and twisted outboard by auxiliary airfoils called flaps to obtain pitch control.
| Author | : United States. National Advisory Committee for Aeronautics |
| Publisher | : |
| Total Pages | : 910 |
| Release | : 1950 |
| Genre | : Aeronautics |
| ISBN | : |
| Author | : Richard C. Dingeldein |
| Publisher | : |
| Total Pages | : 650 |
| Release | : 1954 |
| Genre | : Rotors (Helicopters) |
| ISBN | : |
The power requirements measured in static thrust and in level forward flight are presented for two helicopter rotor configurations. One is a coaxial rotor arrangement having the rotors spaced approximately 19 percent of the rotor radius; the other is a tandem configuration in which the rotor-shaft spacing is 3 percent greater than the rotor daimater and in which the rotors lie in the same plane. The experimental meausrements are compared with the results of calculations based on existing NACA single-rotor theory.
| Author | : United States. National Advisory Committee for Aeronautics |
| Publisher | : |
| Total Pages | : 498 |
| Release | : 1952 |
| Genre | : Aeronautics |
| ISBN | : |
| Author | : United States. Federal Energy Administration |
| Publisher | : |
| Total Pages | : 266 |
| Release | : 1974 |
| Genre | : Energy policy |
| ISBN | : |
| Author | : United States. Federal Energy Administration |
| Publisher | : |
| Total Pages | : 252 |
| Release | : 1974 |
| Genre | : Boston (Mass.) |
| ISBN | : |
