Flying qualities of a twin-engine patrol airplane as estimated from wind-tunnel tests Page: 2 of 90
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NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS
!MEMORANDUM REPORT
for the
Bureau of Aeronautics, Navy Department
FLYING QUALITIES OF A TWIN-ENGINE
PATROL AIRPLANE AS ESTIMATED
FROM WIND-TJUNNEL TESTS
By Victor I. Stevens, Jr. and George B. McCullough
SUMMARY
Flying qualities of a twin-engine patrol airplane have
been estimated from wind-tunnel test results for the purpose
of comparison rTith flight observations, and as a possible
guide in determining changes which would. be necessary to
improve these qualities.
The results indicate the air lane meets the
specifications given in the report "Requirements for
Satisfactory Flying Qualities of Airplanes,' by R. R. Gilruth,
except for the follow wing:
(a) Lack of adequate lonitudinal stability
in climb and approach conditions
(b) Inability of elevator to maintain the
airplane in a three-point attitude
near the ground
(c) High stick forces in landing and maneuvering
flight
(d) High wheel forces to obtain maximum rate
of roll at high speed
(e) Severe rudder-pedal-force reversals at
moderate angles of sideslip
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Stevens, Victor I., Jr. Flying qualities of a twin-engine patrol airplane as estimated from wind-tunnel tests, report, October 1943; (https://digital.library.unt.edu/ark:/67531/metadc61035/m1/2/: accessed April 23, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.