Gulfstream-1 Research Aircraft
The G-1 is a large twin turboprop with performance characteristics of contemporary production aircraft. It is capable of measurements to altitudes approaching 30,000 feet over ranges of 1500 nautical miles, and can be operated at speeds that enable both relatively slow sampling and rapid deployment to field sites throughout the world. The aircraft is configured for versatile research applications. It accommodates a variety of external probes for aerosol, radiation, and turbulence measurements and internal sampling systems for a wide range of measurements. The G-1 has sufficient cabin volume, electrical power and payload capabilities, and flight characteristics to accommodate a variety of instrument systems and experimental equipment configurations. Internal instrumentation is mounted in removable racks to enable rapid reconfiguration as necessary. Data from most systems are acquired on a central computer that is tailored to airborne research data acquisition. In addition to acquiring the various analog and digital input signals, it can be configured to communicate with and/or control other systems onboard, and to provide time synchronization to other computers.
Technical Information
- Aircraft length: 63.75 ft (19.44 m)
- Aircraft wingspan: 78.33 ft (23.88 m)
- Aircraft height: 23.33 ft (7.11 m )
- Maximum gross weight: 36,000 lb (16,330 kg)
- Nominal operating altitude: 1,000 ft AGL to 25,000 ft (7.5 km) MSL
- Maximum operating altitude: 30,000 ft (9 km) MSL
- Nominal cruise speed: 160 - 290 knots (80 - 150 m s-1)
- Nominal sampling speed: 195 knots (100 m s-1)
- Nominal rate of climb: 500-1000 ft min-1 (2.5-5 m sec-1)
- Endurance with maximum fuel: 6 hours
- Crew capacity: 2 pilots and 1 to 5 scientists and engineers
- Cabin payload at maximum gross weight, with full fuel: 2,500 lb (1,134 kg) including scientific crew and instruments
- Cabin dimensions: 21 ft (6.4 m) long; 7 ft (2.13 m) wide; 6 ft (1.83 m) high
- Cabin floor space: 165 ft2 (15.3 m2)
- Entrance door dimensions: 29 in. (74 cm) wide; 58 in. (147 cm) high
- Interior cabin passage way dimensions: 29 in. (74 cm) wide; 68 in. (173 cm) high
- Standard 19" equipment rack dimensions: 17 & 24 in. (43 & 61 cm) deep; 22 & 42.5 in. (56 & 108 cm) wide; 42 in. (107 cm) high
- Floor mounting track width: 12 in. (30.48 cm)
- Supplemental air conditioning: 3 heat-exchangers in cabin rated at ~6000 Btu/hr each
- Electrical power: 300 A @ 28 VDC provides 4,000 V-A at 115 VAC 60 Hz and 4,000 V-A at 230 VAC 60 Hz

