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An Analysis of the Transition of a Helicopter From Hovering to Steady Autorotative Vertical Descent
"This report is the second phase of a broad program of study of the transient motions of helicopters in autorotative flight. The first phase (reference 1) dealt with the steady-state condition of autorotative vertical descent. This report is concerned with the the transition from the steady condition of hovering to the steady autorotative descent" (p. 1).
Date:
June 1949
Creator:
Nikolsky, A. A. & Seckel, Edward
System:
The UNT Digital Library
An analytical investigation of airplane spin-recovery motion by use of rotary-balance aerodynamic data
From Introduction: "Many investigations have been made in the Langley 20-foot free-spinning tunnel in which the natures of airplane spins and recoveries have been determined experimentally with dynamically scaled-down models. The results of some of these investigations are presented in references 1 to 5."
Date:
June 1954
Creator:
Scher, Stanley H.
System:
The UNT Digital Library
An Analysis of the Variation With Altitude of Effective Gust Velocity in Convective-Type Clouds
From Introduction: "In the present paper, the variation of effective gust velocity in convective-type clouds with altitude is investigated. Data obtained during 1941 and 1942 at altitudes up to 34,000 feet and data obtained more recently from the Thunderstorm Project (reference 5) at altitudes up to 26,000 feet are utilized for this purpose. Consideration is given in analyzing the results both to data for the range
Date:
June 1948
Creator:
Tolefson, H. B.
System:
The UNT Digital Library