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Research requirements for emergency power to permit hover-one-engine-inoperative helicopter operation
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Yost, J. H. |
| Copyright Year | 1976 |
| Description | The research and technology demonstration requirements to achieve emergency-power capability for a civil helicopter are documented. The goal for emergency power is the ability to hover with one engine inoperative, transition to minimum-power forward flight, and continue to a safe landing where emergency power may or may not be required. The best method to obtain emergency power is to augment the basic engine power by increasing the engine's speed and turbine-inlet temperature, combined with water-alcohol injection at the engine inlet. Other methods, including turbine boost power and flywheel energy, offer potential for obtaining emergency power for minimum time durations. Costs and schedules are estimated for a research and development program to bring emergency power through a hardware-demonstration test. Interaction of engine emergency-power capability with other helicopter systems is examined. |
| File Size | 1748065 |
| Page Count | 49 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770012115 |
| Archival Resource Key | ark:/13960/t8z941b44 |
| Language | English |
| Publisher Date | 1976-12-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Design, Testing And Performance Ch-47 Helicopter Hovering Stability Civil Aviation Helicopter Propeller Drive Emergencies Helicopter Engines Helicopter Performance Turbine Engines Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
