| Crew | 2 pilots, 1 flight engineer, 14 seats available for project participants (depending on equipment payload) |
|---|---|
| Length | 102 ft (31.1 M) |
| Wingspan | 136 ft (41.5 M) |
| Height | 39 ft (11.9 M) |
| Cabin Floor Area | 414 sq ft (38.5 sq M) |
| Gross Weight | 155,000 lb (70,455 kg), maximum |
| Engines | 4 Allison T56-A-423; 4,300 SHP each |
| Base | Jefferson County Airport Broomfield, Colorado |
| Altitude | 26,000 ft (7.925 kM), maximum operating |
|---|---|
| Range | 1,800 nmi (3,335 kM) @ 1,000 ft (304 M) altitude 2,500 nmi (4,633 kM) @ 10,000 ft (3.04 kM) altitude 3,100 nmi (5,744 kM) @ 20,000 ft (6.10 kM) altitude |
| Endurance | 10.0 hr, maximum with IFR reserve (single crew) |
| Speed | 290 KTAS (149 M/s) @ normal cruise altitude 250 KTAS (129 M/s) with instrument pods installed |
| Payload | 23,000 lb (10,400 kg), maximum 13,000 lb (5,900 kg) with full fuel |
| Electrical Power | 90kVA @ 115 Vac 400 Hz; 21kVA @ 115Vac 60 Hz; 400A @ 28Vdc |
| Acceleration Limit | +2.5 to 0 g (flight load) |