Cessna 310 / 320

The Cessna 310 series, launched in 1954, marked the American manufacturer’s first foray into twin‑engine, all‑metal light aircraft. Developed from the successful single‑engine 1950 model, the 310 featured a low‑wing layout, retractable landing gear, and two horizontally opposed Continental engines delivering up to 300 hp. Its sleek design, a top speed of 220 knots and a range exceeding 1,000 nautical miles quickly made it a favorite for business travel, air‑taxi operations, and advanced flight training. In 1956 Cessna introduced the 320, an enlarged variant with a longer fuselage, higher‑capacity cabin, and more powerful engines, boosting cruise speed and payload. Both models incorporated innovations such as counter‑rotating propellers on later versions, improved fuel‑efficient engines, and optional pressurization in the 320. Over 5,000 units were built before production ceased in 1980, and the airframes remain in service worldwide. The 310/320 series demonstrated the viability of reliable, twin‑engine general‑aviation aircraft, influencing subsequent designs and establishing Cessna’s reputation for versatile, high‑performance twins that bridged the gap between piston trainers and larger corporate jets. Today many are maintained by private owners and flight schools, and the type retains a strong support network, underscoring its lasting impact on twin‑engine pilot proficiency.