AC 900 (690D) JetProp Commander
Specifications & Performance
The model 900, released in 1981, featured continued advancement of the engines and capabilities of the plane. Shaft horsepower increased to 748.3 per engine while landing weight increased almost 1,000 lbs. over previous models to 10,550 lbs. The most important advancement of the model 900 was the interior layout. Without extending the overall length of the fuselage, the cabin interior was lengthened by three feet increasing total cabin volume to 278 square feet. This change gave the model 900 one of the best cabin volume per passenger ratings in its segment. The model 900 and model 1000 were the only two models designed and released under Gulfstream ownership.
Specifications
Dimensions
| Wing span | 52.12′ | 15.89m |
| Length | 42.98′ | 13.10m |
| Height | 14.95′ | 4.56m |
| Tread | 15.42′ | 4.70m |
| Turning Radius | 43.88ft | 13.37m |
| Cabin Entry Door | 2. 21’ x 3.92’ | .67 x 1.19m |
| Cabin Height (Inside Interior) | 4.77′ | 1.45m |
| Cabin Length | 17.25′ | 5.26m |
| Cabin Width (Inside Interior) | 4.12′ | 1.25m |
| Cabin Volume | 278 ft³ | 7.87m³ |
| Baggage compartment height | 3.08′ | .94m |
| Baggage compartment width | 3.82′ | 1.25m |
| Baggage compartment length | 4.88′ | 1.16m |
| Baggage compartment volume | 45.8 ft³ | 1.30 m³ |
| Baggage door height | 2.58′ | .79m |
| Baggage door width | 1.83′ | .56m |
| Baggage compartment load limit | 600 lbs | 272 kg |
Propellers
Dowty Rotol, 3 bladed, full feathering and reversible
Power Plant
Honeywell TPE-331-5-254 K single-shaft turbo-prop with integral gearbox, two-stage centrifugal compressor, three-stage axial turbine and single annular combustion chamber.
Weights - Aircraft
| Ramp Weight: | 10,775 lbs/4,888 kg |
| Take-off Weight: | 10,700 lbs/4,854 kg |
| Landing Weight: | 10,550 lbs/4,785 kg |
| Standard Empty Weight: | 7,079 lbs/3,211 kg |
| Useful Load: | 3,696 lbs/1,677 kg |
| Zero Fuel Weight: | 9,000 lbs/4,082 kg |
| Baggage: | 100 lbs/45.45 kg |
Performance
Operating Speed
| Maximum Cruise | |
| (10,000 ft./3,048m average cruise weight, TAS@ MCP): | 333mph/286kts |
| Normal Cruise Speed | |
| (10,000 ft./3,048m average cruise weight, TAS@ MCP): | 329mph/287kts |
| Twin Engine Best Rate of Climb Speed (IAS) Sea Level: | 155mph/135kts |
| Twin Engine Best Angle of Climb Speed (IAS) Sea Level: | 107mph/93kts |
| Single Engine Best Rate of Climb Speed (IAS) Sea Level: | 129mph/112kts |
| Single Engine Best Angle of Climb Speed (IAS) Sea Level: | 112mph/97kts |
| Minimum Control Speed (IAS): | 104mph/90kts |
| Stall Speed, Clean (CAS): | 91mph/79kts |
| Stall Speed, Gear and Flaps Down (CAS): | 89mph/77kts |
Cruising Ranges
Long range cruise at 288mph/251kts/465kmh (TAS) average at 31,000 ft., 9,449 meters, LRCP with 45 min. fuel reserve:
Standard Fuel: 1,980 SM/ 1,721 NM, 3,189 KM
Optional Fuel: 2,262 SM/ 1,966 NM, 3,643 KM
High speed cruise range at 305mph/265kts/491kmh (TAS) average at 31,000 ft., 9,449 meters, MCP with 45 min. fuel reserve:
Standard Fuel: 1,940 SM/ 1,686 NM, 3,124 KM
Optional Fuel: 2,215 SM/ 1,925 NM, 3,567 KM
