Helicopter power available to hover indicator

Details Helicopter power available to hover indicator Helicopter power available to hover indicator

1986-02-05

1988-04-05

Smith, Jerry

Boots, shoes, and leggings

73178H, G01C 2300

Patent

active

047363312

ABSTRACT:
The power required for a helicopter to hover is generated (14, 82) as the ratio of current operating power in forward flight (12, 77) determined (10, 73) from data relating operating power in forward flight to power required for hover for the aircraft. The power required to hover is compared (18, 83) with the maximum power available developed (16, FIG. 2; FIG. 3) by an engine model algorithm utilizing actual engine parameters. The comparison of maximum power to power required for hover is utilized to provide an indication (22) to the pilot. The viability of the indication is indicated by a "ready" indication (26).

REFERENCES:
patent: 3181353 (1965-05-01), Brahm et al.
patent: 3272004 (1966-09-01), Haverl
patent: 3287965 (1966-11-01), Brahm et al.
patent: 3616691 (1971-11-01), Brandau
patent: 3754440 (1973-08-01), Edgerton et al.
patent: 4034605 (1977-07-01), Green
patent: 4402054 (1983-08-01), Osborne et al.
European Patent Search Report No. 95,994 published Dec. 7, 1983, Based on Application No. 83630086.

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