The Effects of a Highly Cambered Low-Drag Wing and of Auxiliary Flaps on the High-Speed Aerodynamic Characteristics of a Twin-Engine Pursuit Airplane Model Page: 3 of 64
[63] p. : ill.View a full description of this report.
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2
Tests of a similar a airplane model at high cpeed indicated
that auxiliary control fla a rwvere effective in producing forces
and moments tending to null the airplane out of high-speed
dives (reference 2). It was desired to determine if such
euxiliary control flaps would be effective on the model reported
on herein and, if so, the optimum location of the flaps.
The specific purposes of the present investigation were
as follow-'s:
1. To compare the high-speed aerodynamic character-
istics of the model having an NACA 230-series wring with those
of a model having a highly cambered NACA 66-series wring
2. To determine the effectiveness, in nroducing'pull-
out forces and moments, of auxiliary control flaps in combin-
ation with the 230-series wing
3. To determine the effectiveness, in producing pull-
out forces and moments, of auxiliary control .flaps it =ombi
ation with the highly cambered 66-series ding
4. To determine the variation of elevator effectiveness e
Tprith Mach number form)the model equipped 'rith the highly cem-
bered 66-series ving
The investigation was conducted in the.Ames 16-foot high-
speed wind tunnel at the request of the Air Material Command,
U. S. Army Air Forces.
APPARATUS
A description of the model ,ith the NACA 230-series Tring
and. the large booms may be found in reference 1. The large
booms ,were used in all of the present tests. aA three-view
drawing.of the.model is shown in figure 1 and a photograph of
the wind-tunnel setup in figure 2. Some of the pertinent
dimensions are -.iven in the follo}ins table:
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Ganzer, Victor M. The Effects of a Highly Cambered Low-Drag Wing and of Auxiliary Flaps on the High-Speed Aerodynamic Characteristics of a Twin-Engine Pursuit Airplane Model, report, February 19, 1944; (https://digital.library.unt.edu/ark:/67531/metadc61228/m1/3/: accessed July 18, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.