Rockwell 685

From Wikipedia, the free encyclopedia
Aero Commander 685 /
Rockwell 685
Aero Commander (5730084844).jpg
Rockwell Commander 685
Role Business aircraft
National origin United States
Manufacturer Aero Commander/Rockwell International
First flight 1971
Produced 1972-1976[1][verification needed]
Number built 66[1][verification needed]
Developed from Rockwell Commander 690

The Rockwell Commander 685 or Aero Commander 685[2] is a light-twin piston-engined aircraft with a pressurized cabin originally built by the Aero Commander company, a division of Rockwell International from 1965.

The predecessor model was the Aero Commander 690 and the next generation are . The Aero Commander 685 had the ICAO AC6L[3] The introduction was in 1971 and the retired in 1976.[1] In this time are built 66 aircraft.[1]

Design and development[]

The Commander 685 was a piston-engined variant of the turboprop-powered Rockwell Commander 690, with two wing-mounted 435 hp Continental GTSIO-520K piston engines in tractor configuration with three-bladed Hartzell feathering propellers. It is a high-wing cantilever monoplane with an enclosed nine-seat cabin and a retractable nose-wheel landing gear. The Model 685 was type certified by the Federal Aviation Administration on 17 September 1971.

Specifications[]

Data from Jane's All the Worlds Aircraft 1976–77[4]

General characteristics

  • Crew: 1–2
  • Capacity: 7–8 passengers
  • Length: 42 ft 11+3⁄4 in (13.10 m)
  • Wingspan: 46 ft 6.6 in (14.19 m)
  • Height: 14 ft 11+1⁄2 in (4.56 m)
  • Wing area: 266 sq ft (24.7 m2)
  • Empty weight: 6,021 lb (2,731 kg)
  • Max takeoff weight: 9,000 lb (4,082 kg)
  • Fuel capacity: 256 US gal (213 imp gal; 970 L) standard, 322 US gal (268 imp gal; 1,220 L) with auxiliary tanks
  • Powerplant: 2 × Continental GTSIO-520-F air-cooled flat-six, 435 hp (324 kW) each
  • Propellers: 3-bladed Hartzell, 7 ft 4 in (2.24 m) diameter

Performance

  • Maximum speed: 279 mph (449 km/h, 242 kn) at 20,000 ft (6,100 m) (TAS)
  • Cruise speed: 255 mph (411 km/h, 222 kn) at 24,000 ft (7,300 m), (max cruise) (TAS)
  • Stall speed: 86 mph (139 km/h, 75 kn) (wheels and flaps down), (CAS)
  • Range: 1,920 mi (3,090 km, 1,670 nmi) (econ cruise at 20,000 ft (6,100 m), no reserves)
  • Service ceiling: 27,500 ft (8,400 m)
  • Rate of climb: 1,490 ft/min (7.6 m/s)

References[]

  1. ^ a b c d Stemp, P.D. (2016). Rockwell Aero Commander 680 to 690 (Kites, Birds & Stuff - Aircraft of the United States of America ed.). New York: Lulu com. p. 206. ISBN 978-1-326-82815-8.
  2. ^ Collins, Richard L. (January 1973). "On Top: Aero Commander 685". Flying. Vol. 92, no. 1. pp. 100–101. ISSN 0015-4806.
  3. ^ Anderson, Lionel K. (2010). ICAO Aircraft Codes (ACARS - A Users Guide for the Aviation Enthusiast ed.). Las Antalayas Publishing. p. 115. ISBN 978-1-4457-8847-0.
  4. ^ Taylor 1976, pp. 377–378
  • Taylor, John W. R., ed. (1976). Jane's All the World's Aircraft 1976–77. London: Jane's Yearbooks. ISBN 0-354-00538-3.

Further reading[]

External links[]

Media related to Rockwell 685 Commander at Wikimedia Commons

Stub icon

This article on an aircraft of the 1970s is a stub. You can help Wikipedia by .

  • v
  • t
Retrieved from ""