A new trailing bomb-type instrument for photographically recording the flight-path angle and air speed of aircraft in unaccelerated flight is described. The instrument consists essentially of an inclinometer, air-speed meter and a film-drum case. The inclinometer carries an oil-damped pendulum which records optically the flight-path angle upon a rotating motor-driven film drum. The air-speed meter consists of a taut metal diaphragm of high natural frequency which is acted upon by the pressure difference of a Prandtl type Pitot-static tube. The inclinometer record and air-speed record are made optically on the same sensitive film. Two records taken by this instrument are shown.
NACA Flight-Path Angle and Air-Speed Recorder
1926-04-01
Miscellaneous
No indication
English
NACA flight path angle and air speed recorder
SLUB | 1926
|Engineering Index Backfile | 1951
|NTRS | 1951
|Engineering Index Backfile | 1951
|TIBKAT | 1951
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