Reconnaissance1962 experimental surveillance aircraft model by Lockheed
Lockheed XV-4 Hummingbird

The Lockheed XV-4 Hummingbird (originally designated VZ-10) was a U.S. Army project to demonstrate the feasibility of using VTOL for a surveillance aircraft carrying target-acquisition and sensory equipment. It was designed and built by the Lockheed Corporation in the 1960s, as one of many attempts to produce a V/STOL (vertical take-off/landing) jet. Both prototype aircraft were destroyed in accidents.
Summary from Wikipedia, photo via Wikimedia Commons, licensed under CC BY-SA.
- Manufacturer
- Lockheed Corporation
- Category
- Reconnaissance
- Country of origin
- United States
- First flight
- 1962-07-07
Specifications
- Cruise speed
- 295 kt
- Max speed
- 450 kt
- Range
- 521 nm
- Service ceiling
- 10,000 ft
- Rate of climb
- 12,000 ft/min
- Max takeoff weight
- 7,200 lb
- Empty weight
- 4,995 lb
- Powerplant
- 2 × Pratt & Whitney JT12A-3LH turbojet
- Engines
- 2
- Seats
- 2
- Length
- 32.7 ft
- Wingspan
- 25.7 ft
- Height
- 11.8 ft
- Number built
- 2
Specifications are approximate and may vary by variant. Compiled from Wikipedia (CC BY-SA).
Reference and training only. Specifications vary by variant — consult the manufacturer and the official documents.