
Unmanned Systems Roadmap 2007-2032
Appendix A. Unmanned Aircraft Systems (UASs)
Page 68
A.1.4. RQ-4 Global Hawk
User Service: Air Force
Manufacturer: Northrop Grumman Corporation
Inventory: 12 Delivered/61 Planned (7 ACTD +
54 production aircraft)
Status: POR
Background: The Air Force RQ-4 Global Hawk is a
high-altitude, long-endurance unmanned aircraft
designed to provide wide area coverage of up to
40,000 nm
2
per day. The size differences between
the RQ-4A (Block 10) and RQ-4B (Blocks 20, 30,
40) models are shown in the figure at right and the
table below. Global Hawk completed its first flight
in February 1998 and transitioned from an ACTD
into its Engineering and Manufacturing Development
(EMD) phase in March 2001. Its EO/IR and
SAR/MTI sensors allow day/night, all-weather
reconnaissance. Sensor data are relayed to its mission control element, which distributes imagery to up to seven
theater exploitation systems. The Air Force has restructured the program to procure 47 “B model” aircraft through
FY2013. The first B model, a Block 20, flew its maiden flight on March 1, 2007. The first multi-intelligence
payload, which includes an Advanced Signals Intelligence Program (ASIP) payload, began flight test in May 2007,
followed by the MP-RTIP payload in July 2007. The Air Force plans to add other sensor and communications
capabilities in a spiral development process as this fleet is procured. Ground stations in theaters equipped with the
Common Imagery Processor will eventually be able to receive Global Hawk imagery directly. The first operational
production aircraft, the Block 10 “A model,” deployed in January 2006 to U.S. Central Command (CENTCOM) and
replaced the prototype ACTD configuration, which had been deployed there for most of the time since 2001.
http://www.af.mil/factsheets/factsh
eet.asp?fsID=175
Characteristics:
RQ-4A
(Block 10)
RQ-4B
(Block 20, 30, 40)
RQ-4A
(Block 10)
RQ-4B
(Block 20, 30, 40)
Length 44.4 ft 47.6 ft Wing Span 116.2 ft 130.9 ft
Gross Weight 26,750 lb 32,250 lb Payload Capacity 1950 lb 3000 lb
Fuel Capacity 14,700 lb 16,320 lb Fuel Type JP-8 JP-8
Engine Make Rolls Royce
AE-3007H
Rolls Royce
AE-3007H
Power, SLS 7600 lb 7600 lb
Data Link(s) LOS LOS Frequency UHF UHF
LOS LOS X-band CDL X-band CDL
BLOS (SATCOM) BLOS (SATCOM) Ku-band
INMARSAT
Ku-band
INMARSAT
Performance:
Endurance 32 hr 28 hr Maximum/Loiter
Speeds
350/340 kt 340/310 kt
Ceiling 65,000 ft 60,000 ft Radius 5400 nm 5400 nm
Takeoff Means Runway Runway Landing Means Runway Runway
Sensor EO/IR EO/IR and
signals intelligence
Sensor Make Northrop
Grumman
Northrop Grumman
SAR/MTI SAR/MTI Raytheon Raytheon