Serial/Series Title
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Calculation of Aerodynamic Forces on an Inclined Dual-Rotating Propeller
Report presenting a method for calculating the aerodynamic forces on the blades of a dual-rotating propeller with its thrust axis inclined to the air stream. Comparison of the fluctuating aerodynamic forces due to pitched or yawed operation of a dual-rotating propeller show that the fluctuation in forces on the front component tend to be greater than those on the rear component.
Date:
June 19, 1953
Creator:
Crigler, John L. & Gilman, Jean, Jr.
System:
The UNT Digital Library
An experimental investigation of the effect of various parameters including tip Mach number on the flutter of some model helicopter rotor blades
Report presenting studies of some of the effects of parameters such as Mach number, blade angle, and structural damping on the flutter of model helicopter rotor blades in the hovering condition. Forward movement of the blade chordwise center-of-gravity location tended to raise the flutter speeds at low pitch angles, but had no effect at high pitch angles. The significant flutter data for the tests along with detailed descriptions of the models are included to facilitate more detailed analyses.
Date:
June 19, 1953
Creator:
Brooks, George W. & Baker, John E.
System:
The UNT Digital Library