Bell XV-15
| XV-15 | |
|---|---|
| XV-15 in a hover | |
| General information | |
| Type | Experimental VTOL aircraft | 
| National origin | United States | 
| Manufacturer | Bell Helicopter Textron | 
| Status | Prototype | 
| Primary user | NASA | 
| Number built | 2 | 
| History | |
| First flight | 3 May 1977 | 
| Retired | 2003 | 
| Developed into | V-22 Osprey AgustaWestland AW609 | 
The Bell XV-15 is an American tiltrotor VTOL aircraft. It was the second successful experimental tiltrotor aircraft and the first to demonstrate the concept's high speed performance relative to conventional helicopters.