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Limited Measurements of Static Longitudinal Stability in Flight of Douglas D-558-1 Airplane (buaero No. 37971)

Walter C Williams

Abstract

Contains a few measurements of the variation of elevator angle and elevator force with Mach number at 30,000 feet altitude up to a Mach number of 0.85. These data show that the airplane possessed positive static longitudinal stability up to a Mach number of 0.80. A trim change in the nose-down direction occurred for Mach numbers above 0.82.

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Available abstract

Key concepts: Mach number, Longitudinal static stability, Elevator, Airplane, Aerospace engineering, Altitude (triangle), Stability (learning theory), Drag divergence Mach number