The Lockheed Corporation (originally Loughead Aircraft Manufacturing Company) was an American aerospace company. Lockheed was founded in 1912 and later merged with Martin Marietta to form Lockheed Martin in 1995.
- CL-475, rigid-rotor helicopter
- XH-51A/B (Lockheed CL-595/Model 286), compound helicopter testbed
- AH-56 Cheyenne, prototype attack compound helicopter
Lockheed AH-56A Cheyenne
The Lockheed C-840 (AH-56 Cheyenne) won the competition of the US Army’s AAFSS (Advanced Aerial Fire Support System) programme in 1965. Until 1968, 10 pre-production models were delivered and 375 orders were placed. But in the meantime the US Army had already acquired the Bell AH-G HueyCobra. When the Cobras were available in Vietnam in 1969, the order for the AH-56 Cheyenne was cancelled.
In order to accelerate the speed of that helicopter, an additional pusher propeller was built in.
Type Attack and attack support helicopter
First flight 21.09.1967
|Main rotor diameter||m||15,36|
|Tail rotor diameter||m|
|Max. take-off mass||kg||13600|
|Turbines||1x General Electric T64-GE-16|
|Turbine power||KW||1x 3435 shp|
|Flight performance and limits|
|Max. cruise speed||km/h||370|
|Max. climb rate||m/s||16,7|
|Hover ceiling (IGE)||m|
|Max. hover ceiling (OGE)||m|
Text aus Wikipedia, der freien Enzyklopädie