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height-velocity diagram
- Sinônimos
- dead man's curve
- deadman's curve
- Definição1
- It defines an envelope of airspeed and height above the ground from which a safe power-off or one engine inoperative landing cannot be made.
- Fonte1
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Manual of aircraft accident and incident investigation. Part III: investigation. Montreal, 2011. (Doc. 9756 AN/965).
- Nota adicional1
- Prior to January 31, 1983, the height-velocity diagram was an operating limitation. It restricted operating helicopters in various utility applications. Now, the height-velocity diagram is performance information for Category B helicopters with 9 or fewer passenger seats but remains a limitation for Category A helicopters and Category B helicopters with 10 or more passenger seats. Height-velocity diagrams are based on a one-second delay in the pilot taking appropriate action.
- Contexto
- Helipads on buildings and oilrigs may require that the helicopter operate within the avoid areas of the height-velocity diagram during takeoffs and landings. Additionally, such operations may also limit the gross weight of the helicopter compared with operations from ground level.
- Subárea
- Aircraft
- Spanish
- diagrama de altura-velocidad