Airplane safe take-off rotation indicator

Details Airplane safe take-off rotation indicator Airplane safe take-off rotation indicator

1984-01-09

1986-06-10

Caldwell, Sr., John W.

Communications: electrical

Aircraft alarm or indicating systems

Takeoff indicator

73178T, 340963, 340968, 340969, 364427, G08B 2100, G08B 2300, G08G 500, G06F 1548

Patent

active

045945926

ABSTRACT:
A device for indicating that an airplane has reached a safe speed for take-off rotation. The device indicates when both the airspeed equals or exceeds a preselected minimum airspeed and the ground speed equals or exceeds the preselected minimum airspeed less a preselected margin.

REFERENCES:
patent: 2922982 (1960-01-01), Hoekstra
patent: 3077110 (1963-02-01), Gold
patent: 3086394 (1963-04-01), Peck
patent: 3174710 (1965-03-01), Hoekstra
patent: 3176264 (1965-03-01), Wail
patent: 3241362 (1966-03-01), Scott
patent: 3691356 (1972-09-01), Miller
patent: 4021010 (1977-05-01), Bliss
patent: 4130015 (1978-12-01), Grover
`Takeoff Monitors Compete for Market`, 7/28/58, p. 77, Aviation Week.
`Takeoff Progress Indicator`, Jack Andresen et al., 4/8-11/58, p. 2, Society of Automotive Eng.

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