Cessna 310I

The Cessna 310I is a twin‑engine, low‑wing utility aircraft that entered production in 1961 as part of Cessna’s long‑standing 310 series. Developed from the earlier 310B, the I model incorporated a strengthened wing spar, a larger 310‑cubic‑inch (5.1 L) Continental IO-470‑D engine on each side, and an increased maximum take‑off weight of 5,500 lb, giving it superior payload and climb performance. Over its 13‑year production run, more than 1,800 examples of the 310 family were built, and the 310I became the most popular variant, widely used by corporate operators, air‑ambulance services, and military training units worldwide. Notable features include all‑metal construction, a spacious 47‑inch cabin with side‑by‑side seating for four, retractable landing gear, and optional de‑icing boots for all three wing panels. Its relatively high cruise speed of 190 kt and a range of 800 nm made it a versatile platform for both short‑haul business trips and longer cross‑country flights. The 310I’s reliability and forgiving handling helped cement Cessna’s reputation in the twin‑engine market and paved the way for later models such as the 340 and 400 series, leaving a lasting legacy in general aviation.