An investigation was made in the Langley 300 MPH 7- by 10-foot tunnel to determine the development of lift on a wing during a simulated, constant-acceleration catapult take-off. The investigation included models of a two-dimensional wing, an unswept wing having an aspect ratio of 6, a 35° swept wing having an aspect ratio of 3.05, and a 60° delta wing having an aspect ratio of 2.31.nAll the wings investigated developed at least 90 percent of their steady-state lift in the first 7 chord lengths of travel. The develop¬ment of lift was essentially independent of the acceleration when based on chord lengths traveled, and was in qualitative agreement with theory.
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