Audible glide speed indicator apparatus

Details Audible glide speed indicator apparatus Audible glide speed indicator apparatus

1991-04-09

1991-10-15

Yasich, Daniel M.

Communications: electrical

Aircraft alarm or indicating systems

Flight alarm

73180, 116 623, G08B 2300, G01P 500

Patent

active

050578324

ABSTRACT:
An audible indicator is arranged in combination with an electronic stall indicator, wherein the audible device includes a conical entrance and exit tube coaxially aligned with a central cylindrical tube, with a whistle member positioned within the tube, with the whistle member defined by an elongate body oriented parallel to the axis of the exit, entrance, and central tube structure to provide audible indication in a range of ten to fifteen knots in advance of stall indication by the electronic stall indicator device.

REFERENCES:
patent: 2110730 (1938-03-01), Holland, Jr.
patent: 2454587 (1948-11-01), Arnold
patent: 2519015 (1950-08-01), Bensen
patent: 4215646 (1980-08-01), Williams
patent: 4903630 (1990-02-01), Rezmer
patent: 4908619 (1990-03-01), Bala et al.

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