| Advanced Attack Helicopter (AAH) | |
|---|---|
 A YAH-64A during a demonstration flight in 1982 | |
| General information | |
| Project for | Attack helicopter |
| Issued by | United States Army |
| Prototypes | Bell YAH-63 Hughes YAH-64 |
| History | |
| Outcome | YAH-64 selected for production as AH-64 Apache |
| Predecessors | Advanced Aerial Fire Support System |
| Successors | Light Helicopter Experimental |
The Advanced Attack Helicopter (AAH) was a United States Army program to develop an advanced ground attack helicopter beginning in 1972. The Advanced Attack Helicopter program followed cancellation of the Lockheed AH-56 Cheyenne. After evaluating industry proposals, the AAH competition was reduced to offerings from Bell and Hughes. Following a flight test evaluation of prototypes, Hughes' YAH-64 was selected in December 1976.[1]