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Charts for Estimating Performance of High-Performance Helicopters
"Theoretically derived charts showing the profile-drag-thrust ratio are presented for helicopter rotors operating in forward flight and having hinged rectangular blades with a linear twist of 0 degree, 8 degrees, and 16 degrees. The charts, showing the profile-drag characteristics of the rotor for various combinations of pitch angle, ratio of thrust coefficient to solidity, and a parameter representing shaft power input, are presented for tip-speed ratios ranging from 0.05 to 0.50. Also presented in chart form are the ratio of thrust coefficient to solidity as a function of angles of attack, as a function of inflow ratio and collective pitch, and as a function of power and thrust coefficients" (p. 1).
Date:
November 23, 1955
Creator:
Gessow, Alfred & Tapscott, Robert J.
System:
The UNT Digital Library
QUARTERLY SUMMARY RESEARCH REPORT IN ENGINEERING FOR APRIL, MAY, JUNE 1955
None
Date:
November 23, 1955
Creator:
unknown
System:
The UNT Digital Library
[Sugarland State Bank, Cash Position, November 23, 1955]
Report of the daily cash position for Sugarland State Bank.
Date:
November 23, 1955
Creator:
Sugarland State Bank
System:
The Portal to Texas History