The Rockwell Commander 685 or Aero Commander 685[1] 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.
| Aero Commander 685 / Rockwell 685 | |
|---|---|
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| |
| Rockwell Commander 685 | |
| Role | Business aircraft |
| National origin | United States |
| Manufacturer | Aero Commander/Rockwell International |
| First flight | 1971 |
| Developed from | Rockwell Commander 690 |
The predecessor model was the Aero Commander 690 and the next generation are Aero Commander JetProp series. The Aero Commander 685 had the ICAO aircraft code AC6L[2] The introduction was in 1971 and the retired in 1976; in this time are built 66 aircraft.[citation needed]
Design and development
editThe 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
editData from Jane's All the Worlds Aircraft 1976–77[3]
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
edit- ^ Collins, Richard L. (January 1973). "On Top: Aero Commander 685". Flying. Vol. 92, no. 1. pp. 100–101. ISSN 0015-4806.
- ^ 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.
- ^ 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
edit- Collins, Richard L. (August 1972). "On Top: Aero Commander 685". Flying. Vol. 91, no. 2. pp. 78, 80. ISSN 0015-4806.
External links
edit
Media related to Rockwell 685 Commander at Wikimedia Commons