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Cessna 620

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Top speed
  
454 km/h

Wingspan
  
17 m

Cruise speed
  
378 km/h

Range
  
3,148 km

Length
  
14 m

Engine type
  
Opposed-piston engine

Cessna 620 1956 Cessna 620 Ginormous Quad 310 blog AirPigz

Unit cost
  
375,000–375,000 USD (1956)

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.

Contents

Cessna 620 Cessna 620

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

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.

Cessna 620 Cessna 620

Development

Cessna 620 Cessna 620

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.

Cessna 620 httpsuploadwikimediaorgwikipediacommonsthu

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. The airplane was eventually sold for scrap.

Specifications

Data from Phillips

General characteristics

Cessna 620 Cessna39s 620 the stillborn prodigy Air Facts Journal

  • 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)
  • Useful load: lb (kg)
  • Loaded weight: 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

    Cessna 620 Wikipedia