Method and system for operating a rotorcraft engine
AssigneePratt & Whitney Canada Corp.
InventorsMartin Drolet, Sylvain Desnoyers
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Abstract
Systems and methods for operating a rotorcraft engine are described herein. Measurements indicative of at least one of current temperature and current pressure at an inlet of the engine are obtained from at least one sensor while the rotorcraft is in flight. At least one current inlet loss is determined from the measurements. Current available engine power of the rotorcraft engine is determined based on the at least one current inlet losses. A visual indication of the current available engine power is produced via a flight display.
Claims20
A method for operating a rotorcraft engine, the method comprising:
- obtaining at least one predetermined installation loss characteristic that depends on a configuration of an installation of the engine in the rotorcraft;
- obtaining measurements indicative of at least one of current temperature and current pressure at an inlet of the engine from at least one sensor while the rotorcraft is in flight;
- determining at least one current inlet loss from the measurements;
- adjusting the at least one predetermined installation loss characteristic based on the at least one current inlet loss to obtain an adjusted at least one predetermined inlet loss characteristic;
- determining current available engine power of the rotorcraft engine based on the adjusted at least one predetermined inlet loss characteristic;
- and
- producing, via a flight display, a visual indication of the current available engine power.
A system for operating a rotorcraft engine, the system comprising:
- at least one processing unit;
- and
- at least one non-transitory computer-readable memory having stored thereon program instructions executable by the at least one processing unit for:
- obtaining at least one predetermined installation loss characteristic that depends on a configuration of an installation of the engine in the rotorcraft;
- obtaining measurements indicative of at least one of current temperature and current pressure at an inlet of the engine from at least one sensor while the rotorcraft is in flight;
- determining at least one current inlet loss from the measurements;
- adjusting the at least one predetermined installation loss characteristic based on the at least one current inlet loss to obtain an adjusted at least one predetermined inlet loss characteristic;
- determining current available engine power of the rotorcraft engine based on the adjusted at least one predetermined inlet loss characteristic;
- and
- producing, via a flight display, a visual indication of the current available engine power.
Dependencies are inferred from the claim text.