The PA-44 is a development of the Piper Cherokee single-engined aircraft and is primarily used for multi-engined flight training.[2][3]
The Seminole was built in 1979–1982, in 1989–1990, and has been in production since 1995.
Design and development
The first production Seminoles are equipped with two 180hp (135kW) Lycoming O-360-E1A6D engines. The right-hand engine is a Lycoming LO-360-E1A6D variant, which turns in the opposite direction to the left-hand engine. This feature eliminates the critical engine and makes the aircraft more controllable in the event that an engine needs to be shut down or fails.[4][5]
The first prototype Seminole made its maiden flight in May 1976 and the type was publicly announced on February 21, 1978.[6] The Seminole was first certified on March 10, 1978, and introduced as a 1979 model year in late 1978. Gross weight is 3800lbs (1723kg).[5]
The PA-44-180T Turbo Seminole version was certified on November 29, 1979. It features two turbocharged 180hp (135kW) Lycoming TO-360-E1A6D engines, which offer a significant improvement in performance at high density altitude. The Turbo Seminole had its takeoff gross weight raised to 3925lb (1780kg), while the landing weight remained at 3800lbs (1723kg).[5]
The PA-44 features a high T-tail similar to the T-tailed Arrow IV. The Seminole is visually similar to the Beechcraft Duchess.[3]
Production of both versions of the Seminole was stopped in 1982, after 361 Seminoles and 87 Turbo Seminoles had been built. Production of the normally aspirated PA-44-180 restarted in 1988.[7] Changes were limited to modifications to the aircraft's electrical systems and instrumentation.[8] Production was stopped again in 1990 after 29 more aircraft had been delivered owing to Piper's financial problems.[9] Production restarted again in 1995.[10]
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