1. Global Observer, USA
High Altitude Long Endurance UAV

3. Introduction
 Global Observer (GO) is a high-altitude long-endurance unmanned aerial vehicle
designed and built by Aero Vironment principally for the US Defense and homeland
security forces.
 The UAV will perform intelligence, surveillance and reconnaissance operations without
latitude restrictions.
 The GO is the first UAV to be fitted with a liquid hydrogen fuelled propulsion system. It
can be transported by a C-130 aircraft.
 Flying at a maximum altitude of 65,000ft (19,812m), the GO can provide its operators
with real time intelligence data by executing surveillance and reconnaissance
operations over a large area.

5. Features
 Global Observer has been designed to execute maritime patrol, hurricane or storm
tracking, detection and location of electromagnetic interference, and agriculture
optimization operations.
 The UAV will also perform aerial imaging and mapping, environmental monitoring,
disaster relief, wildfire sensing, GPS augmentation and weather monitoring missions.
 It has been designed to execute significantly longer operations than the Global Hawk
UAV.
 The GO can render communication relay when cell towers, microwave relays and
satellite downlinks are damaged. The UAV will manoeuvre automatically even under
adverse weather conditions.

7. Navigation & GCS
 The automatic launch and recovery (ALR) system fitted in the GO will allow the aircraft
to land safely in case of communication failure between the UAV and the GCS.
 The UAV will be equipped with electro optic and infrared sensors.
 The GCS is a small, lightweight system which will display real-time videos or images
captured by Global Observer.
 The data provided by the UAV can be processed, retrieved and stored at the GCS. It
can also playback videos for target identification and allows for retransmission of
videos and information to the operations network.
 The GCS can be operated as a remote video terminal (RVT) when implanted at remote
location.

9. Statistics
 Endurance: 5–7 days
 Payload: Up to 400 lbs (180 kg)
 Operating altitude: 55,000 to 65,000 feet (17,000 to 20,000 m)
 Propulsion system: Liquid hydrogen-powered internal
combustion power plant driving four high
efficiency electric motors. The aircraft does
not produce carbon emissions.
 Wing Span: 175 feet (53 m)
 Length: 70 feet (21 m)
 Launch/Recovery Method: Operate from conventional 150 ft (46 m) W
X 6,000 ft (1,800 m) long paved runways
(<4,200 ft takeoff and landing distance)

10. References
http://en.wikipedia.org/wiki/AeroVironment_Globa
l_Observer
http://www.airforce-
technology.com/projects/globalobserverunmann/
https://www.avinc.com/globalobserver/about/

11. Thank You