Position errors of the service airspeed installations of 10 airplanes /
by William Gracey.
Description
- Language(s)
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English
- Published
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Washington, D.C. : National Advisory Committee for Aeronautics, 1949.
- Summary
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Calibrations of the static-pressure or "position" errors of the service airspeed installations of 10 present-day airplanes are presented. The installations are representative of most of the systems in use at the present time and include static-pressure vents on the nose and the rear section of the fuselage and pitot-static tubes mounted on the wing, the vertical tail, and the nose of the fuselage. Each of the installations was calibrated under steady flight conditions by means of a trailing static-pressure tube. The tests were conducted from speeds near the stall to maximum indicated speeds not exceeding 260 miles per hour. Calibrations of representative flight conditions (climb, glide, Wave-off, and landing) were obtained in order to show the variation of static-pressure error with engine power and flap setting. The position errors for the various flight conditions are presented as static-pressure errors and as airspeed and altitude errors. Analysis of the data presented showed that the static-pressure error for static vents on the rear section of the fuselage remained approximately constant with angle of attack and became more negative with flap deflection. The static-pressure errors for the wing, fuselage-nose, and vertical-tail installations became more negative with increasing angle of attack and more positive with flap deflection; the effect of engine power for these installations followed no consistent trend.
- Note
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"June 1949."
- Physical Description
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48 p. :
ill. ;
27 cm.
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