Background: Boeing's Heliwing VTOL UAV took off and landed vertically from a tail-sitting position, but transitioned from hover into fixed-wing forward flight by nosing over. One demonstrator was built, which crashed while attempting its first retransition from forward flight to landing hover on its sixth flight on 13 Jun 95.
Characteristics:
| Length, ft | 8.1 | Wing Span, ft | 16.6 (7 ft diameter rotors) |
| Gross Weight, lbs | 837 | Payload Weight, lbs | 40 |
| Fuel Capacity, lbs | 400 | Fuel Type | JP-5 |
| Engine Make | 1xWilliams WTS-117 | Power, hp | 130 |
| Structure | Aluminum | ||
| Guidance | MIAG | Navigation | |
| Data Link(s) | Data Rate(s) | ||
| Endurance, hrs | 1.0 | Radius, nm | |
| Max Speed, kts | 142 | Stall Speed, kts | Hover |
| Altitude, ft | 12,500 | ||
| Takeoff Means | Vertical | ||
| Navigation | Preprogrammed
(points)/ autonomous/direct control |
||
| Landing Means | Vertical | ||
Sensor(s):