Lockheed Altair

The Lockheed Altair was a development of the Lockheed Sirius. The Altair was one of the first aircraft designs with a fully rectractable undercarriage.

The first five Altairs were converted Siriuses. Another six Altairs were built from scratch: three by Lockheed, two by Detroit Aircraft, and one by AiRover. The AiRover Altair, dubbed The Flying Testbed, was powered by a Unitwin engine, which used two engines to drive a single shaft. The Unitwin was used in the Vega Starliner, which never went into production.

Specifications

General characteristics

• Crew: 1
• Length: 28 ft 4 in (8.64 m)
• Wingspan: 42 ft 9 in (13.03 m)
• Height: 9 ft 6 in (2.90 m)
• Wing area: 293 ft (27.238 m)
• Empty weight: 3,235 lb (1,468 kg)
• Loaded weight: 4,895 lb (2,220 kg)
• Max takeoff weight: lb (kg)
• Powerplant: 1× , ()

Performance

• Maximum speed: 207 mph (333 km/h)
• Range: 580 mi (935 km)
• Service ceiling: 23,800 ft (23,800 m)