High-speed wind-tunnel tests of a 1/14-scale model of a four-engine cargo airplane Page: 2 of 32
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NATIOT;AL ADYISORY COISiTTiT FOR AEETONAUTICS
MEMORA IO.DUMh REPORT
Air Matoreiel Command, U. S. Army Air Forces
C -I~ SPEEL WIND-'TUTEL TSTS OF A 1/14-SCALE
MODEL OF A FOU-EIGINIE C ARGO AIPIPTE
By Willi am T. i,.milton
This report presents results Cf tests on a 1/1-scle model -f
a four-o-ngine .rn a.ir~nlane, which :as tested in the 16-foot high-
speed wind tunnel. Theo hi -speed. ch.ar.ct stickss '__ this irp.n,
particularly the longitudin.l stability and control i2 dv Ts were
The test results indicated no important changes in longitudinal
stability or controllab ility until the speed. exceeded th predicted
maximum level-flight speed by more than 38 percent. Abv-e tL1i
speed, large changes occ-rreod in the stability and lift coefficient
At the request of the Army Air Forces, a. 1/14-scalo model of
a cargo airplane w cs tested in the 1$-foot ?igh-spee wind_ tunnel at
th e mes Aeronautica l Leboratory of the NI.tiona'l Adv sory Comm ittee
for Aeronautics. The airplane is a fur-engine 1ow-wing
The purpose of the tests was to investigate the high-speed
characteristics of this airplane, particularly the longitudinal
stability an. control in dives.
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Hamilton, William T. High-speed wind-tunnel tests of a 1/14-scale model of a four-engine cargo airplane, report, February 1943; (digital.library.unt.edu/ark:/67531/metadc61219/m1/2/: accessed September 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.