Gulfstream Commander 900
Gulfstream American Commander Division announced it will build a lower-powered version of its large-cabin 1000 model. The new airplane will be called the Commander 900. By moving the floor and the pressure bulkhead and by changing the windows, Gulfstream has been able to come up with a great deal more cabin space inside the old Commander fuselage.
First built in 1982.
Engines: 2 x Garrett TPE-331-5-254K, 748 shp.
Props: Dowty Rotol 3-blade, 106-in.
Length: 42.9 ft.
Height: 14.9 ft.
Wingspan: 52.1 ft.
Wing area: 279 sq.ft.
Wing aspect ratio: 9.8.
Maximum ramp weight: 10,775 lbs.
Maximum takeoff weight: 10,700 lbs.
Standard empty weight: 7000 lbs.
Maximum useful load: 3775 lbs.
Zero-fuel weight: 9000 lbs.
Maximum landing weight: 10,550 lbs.
Wing loading: 38.3 lbs/sq.ft.
Power loading: 7.2 lbs/hp.
Maximum usable fuel: 2848 lbs.
Best rate of climb: 2779 fpm.
Service ceiling: 32,325 ft.
Max pressurisation differential: 6.7 psi.
8000 ft cabin alt @: 31,000 ft.
Maximum single-engine rate of climb: 924 fpm @ 112 kts.
Single-engine climb gradient: 480 ft/nm.
Single-engine ceiling: 18,140 ft.
Maximum speed: 289 kts.
Normal cruise @ 18,000ft: 286 kts.
Fuel flow @ normal cruise: 648 pph.
Endurance at normal cruise: 3.9 hrs:
Stalling speed clean: 79 kts.
Stalling speed gear/flaps down: 77 kts.
Turbulent-air penetration speed: 188 kts.