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The Four-Engined Cessna and Its Corporate Mission

Cessna’s predecessor to the Fanjet 500, the Cessna 620, never made it to market, but it proved a point.

At 15,000 pounds with a wingspan of 55 feet, the 620 dwarfed the company’s existing offerings. [Credit: Textron Aviation, Inc, all rights reserved]
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Key Takeaways:

  • In the late 1950s, Cessna developed the ambitious four-engine 620 for the corporate travel market, driven by extensive market research to meet executive demands for safety, comfort, all-weather capability, and speed.
  • The Cessna 620 was the company's largest civilian aircraft, featuring a unique four-piston engine design, a pressurized cabin, and a spacious interior for executive comfort.
  • Despite its innovative design and successful test flights, the 620 program was canceled due to rising costs and the impending market shift towards more advanced, jet-powered corporate aircraft.
  • The cancellation of the 620 ultimately proved beneficial, freeing up resources that would later lead to the development of Cessna's highly successful Citation series of business jets.
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The late 1950s were an exciting time for Cessna. Demand for general aviation aircraft was robust, and thus, the company invested significant resources into identifying and pursuing emerging markets. One such market during that time was corporate travel.

Corporate aviation had existed for decades, but the post-war environment rekindled the segment. A handful of companies converted larger, former military types into executive aircraft, but most new models under development—such as the Aero Commander 500 series and Beechcraft Queen Air—had relatively small cabins. Others, like the Twin Beech, were relatively slow and lacked pressurization. Cessna saw an opportunity.

Jason McDowell

Jason McDowell is a private pilot and Cessna 170 owner based in Madison, Wisconsin. He enjoys researching obscure aviation history and serves as a judge for the National Intercollegiate Flying Association. He can be found on Instagram as @cessnateur.

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