Cessna 620

Cessna 620
Role	Corporate aircraft
National origin	United States
Manufacturer	Cessna Aircraft
First flight	11 August 1956
Status	Project cancelled
Number built	1

The Cessna Model 620 was a prototype American pressurized eight to 10 seat business airplane powered by four piston engines and built by Cessna. First flight was on 11 August 1956. Only one example (c/n 620, N620E) was built.^[1]

The airplane's model number is an inside joke, as it indicates the 620 is twice the airplane that a Cessna 310 is.^[2]

A promotional film titled Eye to the Sky was produced as a recruiting tool for new engineers. The 620 was canceled the day after it was first shown to students at Wichita State University.^[2]

Development

The Cessna 620 was conceived as an executive transport with design goals that included all-weather capabilities, a pressurized and air-conditioned cabin, a multi-engine layout for safety, a reasonable price and 8 to 10 seats. The project commenced in September 1953, with first flight of the prototype, registered N620E (construction number 620) on 11 August 1956, the test pilots reporting that the aircraft had met its goals.^[3]

With the airlines set to re-equip with the then-new jet airliners, Cessna management identified that surplus propeller-driven airliners would soon flood the used aircraft market, driving prices down. A cost analysis indicated that the model 620 would be smaller and cost more than the surplus airliners and thus was not economically viable. The project was cancelled in October 1957, one aircraft having been completed.^[3]

Specifications

Data from Phillips^[1]

General characteristics

• Crew: 2
• Capacity: 8
• Length: ft in (m)
• Wingspan: 55 ft 0 in (m)
• Height: ft in (m)
• Wing area: 340 ft² (m²)
• Empty weight: lb (kg)
• Loaded weight: lb (kg)
• Useful load: lb (kg)
• Max takeoff weight: 13,500 lb (kg)
• Powerplant: 4 × Continental GSO-526-A, 350 hp (kW) each

Performance

• Never exceed speed: knots (mph, km/h)
• Maximum speed: knots (282 mph, km/h)
• Cruise speed: knots (mph, km/h)
• Stall speed: knots (mph, km/h)
• Range: nm (mi, km)
• Service ceiling: 27,500 ft (m)
• Rate of climb: ft/min (m/s)
• Wing loading: lb/ft² (kg/m²)
• Power/mass: hp/lb (W/kg)

References

1. ^ ^{a b} Phillips, Edward H: Wings of Cessna, Model 120 to the Citation III, Flying Books, 1986. ISBN 0-911139-05-2
2. ^ ^{a b} Rodengen, Jeffery L: The Legend of Cessna, Wright Stuff Enterprise, Inc., 1997. ISBN 0-945903-30-8
3. ^ ^{a b} Dupas, Ron. "Cessna 620." 1000aircraftphotos.com. Retrieved: July 15, 2011.|

External links

• Photo of the 620