Measuring and testing – Navigation – Take-off and landing monitors
Patent
1997-04-11
1999-02-23
Felber, Joseph L.
Measuring and testing
Navigation
Take-off and landing monitors
7317002, 7317011, G01C 2112
Patent
active
058746730
ABSTRACT:
An airspeed and direction indicating system for an aircraft of the rotary wing type includes a vertical accelerometer for monitoring the up and down movement of an outer portion or tip of the rotary wing. The vertical accelerometer produces a generally sinusoidal signal in response to the up and down movement of the wing tip as it rotates about an axis. The amplitude of the signal corresponds to the airspeed and the phase angle indicates direction. Suitable readouts display the information for consideration by a pilot.
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Felber Joseph L.
Safe Flight Instrument Corporation
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