Lockheed Electra
Lockheed Electra refers to two distinct aircraft designs: * Lockheed Model 10 Electra, a ten-passenger piston engine aircraft of the 1930s, which had two immediate variants: ** Lockheed Model 12 Electra Junior, a six-passenger scaled-down version of the Model 10 Electra ** Lockheed Model 14 Super Electra, a twelve-passenger scaled-up version of the Model 10 Electra * Lockheed L-188 Electra The Lockheed L-188 Electra is an American turboprop airliner built by Lockheed. First flown in 1957, it was the first large turboprop airliner built in the United States. Initial sales were good, but after two fatal crashes that led to expensiv ...

Lockheed Model 10 Electra
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. Design and development Some of Lockheed's wooden designs, such as the Orion, had been built by Detroit Aircraft Corporation with metal fuselages. However, the Electra was Lockheed's first all-metal and twin-engined design by Lloyd Stearman and Hall Hibbard. The name Electra came from a star in the Pleiades. The prototype made its first flight on February 23, 1934, with Marshall Headle at the controls. Wind-tunnel work on the Electra was undertaken at the University of Michigan. Much of the work was performed by a student assistant, Clarence Johnson. He suggested two changes be made to the design: changing the single tail to double tails (later a Lockheed trade ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Lockheed Model 12 Electra Junior
The Lockheed Model 12 Electra Junior, more commonly known as the Lockheed 12 or L-12, is an eight-seat, six-passenger all-metal twin-engine transport aircraft of the late 1930s designed for use by small airlines, companies, and wealthy private individuals. A smaller version of the Lockheed Model 10 Electra, the Lockheed 12 was not popular as an airliner but was widely used as a corporate and government transport. Several were also used for testing new aviation technologies. Design and development After Lockheed had introduced its 10-passenger Model 10 Electra, the company decided to develop a smaller version which would be better suited as a " feeder airliner" or a corporate executive transport.O'Leary 2001, p. 1. At the same time, the U.S. Bureau of Air Commerce had also sensed the need for a small feeder airliner and announced a design competition for one. In order for a candidate to qualify for the competition, a prototype had to fly by June 30, 1936.O'Leary 2001, p. 3. Lockhe ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Lockheed Model 14 Super Electra
The Lockheed Model 14 Super Electra was an American civil passenger and cargo aircraft built by the Lockheed Aircraft Corporation during the late 1930s. An outgrowth of the earlier Model 10 Electra, the Model 14 was also developed into larger, more capable civil and military versions. Design and development The design, developed by a team led by Don Palmer, was a scaled-up version of the original Model 10 Electra, with passenger seating increased from 10 to 14. It was intended to compete commercially with the contemporary Douglas DC-2 and the Boeing 247. The first Model 14 flew on July 29, 1937, piloted by Marshall Headle. Early 14's used the Pratt & Whitney R-1690 Hornet engine; later the Wright R-1820 Cyclone 9 was offered as an option. Lockheed built a total of 114 Model 14s; another 119 were built under license in Japan by the Tachikawa Aircraft Company under the designation Tachikawa Type LO Transport Aircraft ''Thelma''. Another 121 were built by Kawasaki Aircraft Compa ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]