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Preliminary flight tests of the N.A.C.A. Roots type aircraft engine supercharger

"An investigation of the suitability of the N.A.C.A. Roots type aircraft engine supercharger to flight-operating conditions, as determined the effects of the use of the supercharger upon engine operation and airplane performance, is described in this report. Attention was concentrated on the operation of the engine-supercharger unit and on the improvement of climbing ability; some information concerning high speeds at altitude was obtained. The supercharger was found to be satisfactory under fl… more

Date: December 29, 1926

Creator: Gardiner, Arthur W. & Reid, Elliott G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Air force and moment for N-20 wing with certain cut-outs

From Introduction: "The airplane designer often finds it necessary, in meeting the requirements of visibility, to remove area or to otherwise locally distort the plan or section of an airplane wing. This report, prepared for the Bureau of Aeronautics January 15, 1925, contains the experimental results of tests on six 5 by 30 inch N-20 wing models, cut out or distorted in different ways, which were conducted in the 8 by 8 foot wind tunnel of the Navy Aerodynamical Laboratory in Washington in 192… more

Date: November 29, 1926

Creator: Smith, R. H.