Lockheed Model 10 Electra

Lockheed Model 10 Electra
Country	USA
Role	Light airliner
First flight	February 23, 1934
Built	149

The Lockheed Model 10 Electra is an American twin-engined, all-metal monoplane airliner developed by the Lockheed Aircraft Corporation in the 1930s to compete with the Boeing 247 and Douglas DC-2. The type gained considerable fame as one was flown by Amelia Earhart on her ill-fated around-the-world expedition in 1937.

Source: Lockheed Model 10 Electra on Wikipedia

Lockheed 10-A Electra Walk Around
Photographers	Mike Burton
Localisation	Western Aerospace Museum, Oakland CA
Photos	85

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Lockheed 10-A Electra 09

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General Characteristics (Model 10A)

The Lockheed Model 10 Electra was a revolutionary, twin-engine, all-metal monoplane airliner of the mid-1930s, designed to compete with the Boeing 247 and Douglas DC-2. It was Lockheed’s first all-metal design and the first project assigned to future “Skunk Works” leader Clarence “Kelly” Johnson, who famously suggested the aircraft’s distinctive twin tail configuration to fix stability issues.

Property	Typical Value (Model 10A)
Role	Light Airliner / VIP Transport
Manufacturer	Lockheed Aircraft Corporation
First Flight	February 23, 1934
Crew	2 pilots
Capacity	10 passengers
Wingspan	16.76 m (55 ft 0 in)
Length	11.76 m (38 ft 7 in)
Max Takeoff Weight	4,760 kg (10,500 lb)
Units Built	149 (All variants)

Design and Powerplant

Engines (10A): Two Pratt & Whitney R-985 Wasp Junior SB air-cooled radial engines.
Power Output (10A): 336 kW (450 hp) each.
Fuselage: All-metal monocoque construction, a departure from Lockheed’s earlier wooden designs.
Landing Gear: Fully retractable conventional (tailwheel) landing gear.
Tail Design: The iconic twin vertical stabilizers and rudders, which became a signature feature of many subsequent Lockheed aircraft, were incorporated after stability concerns were raised during wind tunnel testing.

Performance and Legacy

Maximum Speed: 325 km/h (202 mph) at 1,524 m (5,000 ft).
Cruise Speed: 306 km/h (190 mph).
Range: Approximately 1,150 km (713 miles).
Service Ceiling: 5,910 m (19,400 ft).
Key Role: The Electra was an ideal mid-range transport, popular with airlines like Northwest, Eastern, and Pan American for short to medium-haul routes.
Model 10E: This high-powered variant (using 600 hp Pratt & Whitney R-1340 engines) is most famous as the aircraft flown by Amelia Earhart on her ill-fated around-the-world flight attempt in 1937.
Military Service: Many Electras were impressed into military service during World War II, serving as light transports under designations like the C-36 and UC-36 with the USAAF.