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Beechcraft Model 99 ✕ Rockwell 685 ✕
Manufacturer Beechcraft Rockwell International
Description The Beechcraft Model 99 is a civilian aircraft produced by American manufacturer Beechcraft. The Rockwell Commander 685 or Aero Commander 685 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.
First Flight 1966-07-01 1971-01-01
Entry Into service 1968-01-01
Production End 1987-01-01
Designer Beechcraft Rockwell International
Type Twin-engined utility monoplane
Length (m) 13.4112 12.8016
Height (m) 4.2672 4.2672
Cockpit Crew 1 1
Max Seating 15 8
Max Speed (km/h) 449.007
Cruise Speed (km/h) 379.6597 411.1436
Min Speed (km/h) 138.8999
Max Ceiling (m) 7985.76 8382
Rate of Climb (m/s) 8.636 7.5692
Capacity Description Normally 15 passengers (8-seat 'Business Executive' model available) / Up to 3600 lb depending upon fuel requirements; some aircraft have a belly pod for additional baggage or cargo 7–8 passengers
National Origin United States of America United States of America
Powerplant Description 2 × Pratt & Whitney Canada PT6A-20 (also -27 /-36) turboprop engines, 410 kW (550 hp) each 2 × Continental GTSIO-520-F air-cooled flat-six, 324 kW (435 hp) each
Status In service
Wikipedia Article (URL) en.wikipedia.org/wiki/Beechcraft_Model_99 en.wikipedia.org/wiki/Rockwell_685
Flat Wing Span (m) 13.716 14.0208
Flat Wing Area (m²) 25.985 24.7122
Aircraft Engine Continental IO-520
Number of Engines 2 2