Models

685

The 685 was certified on September 17, 1971 per CAR 3. The 685 has a gross weight of 9000 pounds and is basically the same as the 690 with the following exceptions: Continental engines GTSIO520-K, Slight change in wing structure at the engine attach area, the picture window was divided into two individual windows in the pressure cabin and structural changes to the fuselage. The 685 was the final iteration of piston powered Twin Commander designs.

Specification Performance Kit Finder
685

Specifications

Dimensions

Span46.66′14.22m
Length42.11′12.83m
Height14.11′4.30m
Tread15.50′4.72m
Cabin Entry Door3. 91’ x 2.21’1.19 x 0.67m
Cabin Height (Inside Interior)4.55'1.38m
Cabin Length14.41′4.39m
Cabin Width (Inside Interior)4.33′1.31m
Cabin Volume (incl cockpit)224 ft³68.27m³
Baggage compartment height3′0.91m
Baggage compartment width3.83′1.16m
Baggage compartment length4.83′1.47m
Baggage compartment volume43 ft³13.10 m³
Baggage door height2.60′0.79m
Baggage door width1.64′0.49m
Baggage compartment load limitxxx lbsxxx kg
685

Propellers

xx

Power Plant

Continental engines GTSIO520-K

Weights - Aircraft

Ramp Weight:xx,xxx lbs/x,xxx kg
Take-off Weight:xx,xxx lbs/x,xxx kg
Landing Weight:x,xxx lbs/x,xxx kg
Standard Empty Weight:x,xxx lbs/x,xxx kg
Useful Load:x,xxx lbs/x,xxx kg
Zero Fuel Weight:x,xxx lbs/x,xxx kg
Baggage:xxx lbs/xxx kg
685
685

Performance

Operating Speed

Maximum Cruise
(100% 12,000 ft.TAS@ 10,325 lbs/4,683 kg)xxxmph/xxxkts
Normal Cruise Speed
(96%20,000 ft.TAS@ 10,325 lbs/4,683 kg):xxxmph/xxxkts
Twin Engine Best Rate of Climb Speed (CAS):xxxmph/xxxkts
Twin Engine Best Angle of Climb Speed (CAS):xxxmph/xxxkts
Single Engine Best Rate of Climb Speed (CAS):xxxmph/xxxkts
Single Engine Best Angle of Climb Speed (CAS):xxxmph/xxxkts
Minimum Control Speed (CAS):xxmph/xxkts
Stall Speed, Clean (CAS):xxmph/xxkts
Stall Speed, Gear and Flaps Down (CAS):xxmph/xxkts

Cruising Ranges

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