Experiments with Modified Tail Units.—Experiments have been performed with 1/15th scale models of the original single‐seater fighter and 1/20th scale models of the Bristol Fighter with a view to improving their spinning properties by redesigning the tail unit. The experiments with the fighter models were mainly directed at investigating the spinning characteristics of the original and deepened models to see whether the overall effects of the deepened fuselage and raised tail plane would bear out the encouraging conclusions drawn from the wind tunnel work. The scope of the experiments was somewhat limited, but all results indicated that slower and steeper spins and very much more rapid recoveries might be expected from the deepened fighter.
Irving, H.B. and Stephens, A.V. (1932), "Safety in Spinning: A Summary of Recent Investigations, Model and Full‐Scale, and General Deductions to be Drawn", Aircraft Engineering and Aerospace Technology, Vol. 4 No. 2, pp. 39-44. https://doi.org/10.1108/eb029510
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