The Bensen B-12, variously dubbed the Sky-Way or Sky-Mat was an unconventional multirotor developed by Igor Bensen in the United States in the late 1950s. Extremely unorthodox, the design sprang from Bensen's thinking about the engine redundancy necessary to ensure the safe operation of small, personal rotorcraft operating at low altitudes and slow speeds.

The Martin B-10 was the first all-metal monoplane bomber to be regularly used by the United States Army Air Corps, having entered service in June 1934. [1] It was also the first mass-produced bomber whose performance was superior to that of the Army's pursuit aircraft of the time. [2]The B-10 served as the airframe for the B-12, B-13, B-14, A-15 and O-45 designations using Pratt & Whitney ...

2022年2月25日 · The B-10 served as the airframe for the B-12, B-13, B-14, A-15 and O-45 models using Pratt and Whitney engines instead of Wright Cyclones. The design consists of fully enclosed cockpits, rotating turrets, retractable landing gear, internal bomb bay and efficient cooling for the engines.

The B-12 was a development of the Martin Model 123 and the B-10. The Model 123 was a private venture by the Glenn L. Martin first flying in February 1932. It offered several innovative design features including all metal airframe, enclosed crew positions, deep fuselage, and a retractable undercarriage. ...

Already in 1934, the command of the Air Corps formed requirements for a new bomber, which was supposed to replace the B-10 and B-12. The number of engines was not specified, so Douglas proposed a twin-engine DB-1, Boeing - a four-engined model 299, Martin presented a new Martin-146 bomber, which was an improvement on model 139.

The additional power provided by the Hornet engines gave the YB-12 a speed advantange of about 5 mph over the B-10B. Despite their new model number, the B-12s were otherwise quite similar to the B-10. They could be externally distinguished from the B-10 version by the presence of oil cooler intakes on the port side of the engine nacelles.

Martin B-10 / B-12 / B-14 - bomber, photo, technical data, development history. Jenn, e-mail, 13.11.2016 16:35. There was a story on CBS Sunday Morning today about a group of people in Kansas who found and restored a B-12 that was found in an aircraft boneyard in California.

The B-12 version was powered by R-1690 radials, the early and late varieties differed by the style of the top cowling air intakes. Our model kit brings both of these. The schemes in the kit cover four machines, three in blue and yellow, the fourth in aluminium dope. The aircraft portrayed differ by the bomber unit insignias.

1935 USAAC Martin B-12A crash in the High Sierra. (Photo courtesy of Mr. Ray Murry)775 h.p. R-1690-11 Hornet radial engine surrounded by molten remains of 33-165. (Photo courtesy of Mr. Ray Murry)Civil Conservation Corps fire fighters and one military officer view of the B-12 tail section with fabric burned off the elevators and rudder.

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