Helicopter power available to hover indicator
US4736331A · kind A · utility
20Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1986 |
| Grant date | Apr 5, 1988 |
| Priority date | — |
| Expiry date | Feb 5, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/0055
- WIPO fieldMeasurement
- WIPO sectorInstruments
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).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.