T-42 / T-42AT Cochise
The T-42 is the military version of the Beechcraft B-55B Beech Baron. This four-place, fixed-wing, command transport, liaison, and trainer has a ceiling of 19,700 ft, cruises at 175 kts, and features a range of 800 nm with maximum payload. A development of "Travel Air", the "Baron" first flew on February 29, 1960. A total of over 4500 "Baron" were built.
- "Baron" B-55 - six-seat passenger aircraft, 255 hp engines, introduced in 1961
- "Baron" D-55 - four- or six-passenger aircraft, 285 hp engines
- "Turbo Baron" - D-55 with 375 hp turbocharged engines, first flight May 19, 1967
- "Baron" B-58 - longer fuselage, IO-520C 285 hp engines, introduced in 1979, in 1984 upgraded to IO-550C 300 hp engines
- "Baron" B-58P - pressurized cabin, TSIO-520-WB 325 hp engines
- "Baron" B-58TC - TSIO-520L 301 hp engines
- T-42 "Cochise" - instrument flight trainer for US Army
The Operation Support Airlift (OSA) Command was created in FY 92 and combined Active and Reserve Component OSA operations, began the retirement of non-standard aircraft (T-42, U-8, U-21), and started the modernization of the remaining fleet of C-12, C-20, C-21 and C-26 airplanes. In June 1993 the Chief of Staff Army gave the continental United States (CONUS) OSA mission to the ARNG.
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