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MQ-1C Gray Eagle ER/MP Unmanned Aircraft System (UAS), United States of America




Key Data


MQ-1C Gray Eagle ER/MP Unmanned Aircraft System (UAS)

MQ-1C Gray Eagle is an extended range / multipurpose (ER/MP) unmanned aircraft system (UAS) developed by General Atomics Aeronautical Systems for the US Army. It is an improved variant of the combat-proven Predator unmanned aerial vehicle.

"Gray Eagle can carry an internal payload of 261kg and external payload of 227kg. It is capable of carrying multiple payloads."

Gray Eagle performs reconnaissance, surveillance, target acquisition, command and control, communications relay, signals intelligence (SIGINT), electronic warfare (EW), attack, improvised explosive device (IED) and battle damage assessment missions.

Gray Eagle aircraft accomplished more than 1,700 flight hours during a total of 238 flights during the initial seven-month training and evaluation period.

The first full company of Gray Eagle UAS, F/227 was deployed in June 2012. The army plans to acquire 11 Warrior units, each unit with 12 UAVs and five ground control stations.

To date, 61 Gray Eagle aircraft have been handed over to the US Army, with additional 44 aircraft currently on order.

MQ-1C Gray Eagle development

The competition for the extended range multipurpose UAV to replace the RQ-5 Hunter was initiated by the US Army in 2002. An upgraded version of the RQ-5 Hunter and the General Atomics Warrior were also contenders for the competition.

"The first full company of Gray Eagle UAS, F/227 was deployed in June 2012. The army plans to acquire 11 Warrior units."

The Warrior UAS was announced as winner in August 2005 and General Atomics was awarded a $214m contract for system development and demonstration. Under the $1bn programme, the first aircraft was operational by 2009. Low-tate initial production (LRIP) of the aircraft was approved in March 2010.

The Warrior was designated MQ-1C by the US Department of Defence (DoD). The MQ-1C was officially assigned the name Gray Eagle in August 2010. The Gray Eagle quick reaction capability (QRC) units were deployed to Iraq and Afghanistan, for introducing the aircraft to combat.

The Gray Eagle was successfully integrated with the AGM-114 Hellfire missile in December 2009. The testing of the Hellfire missile aboard the Gray Eagle was concluded by August 2010. The armed systems are primarily intended for the deployment in Afghanistan.

The Defence Acquisition Board (DAB) review in June 2012 authorised the third LRIP purchase of 29 aircraft and associated equipment. The formal initial operational test and evaluation (IOT&E) is planned for August 2012. During the IOT&E, Gray Eagle will officially showcase its capabilities, while operating along with the AH-64D Apache Block III attack helicopter.

Design and playload of the unmanned aircraft system


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Based on the Predator airframe design, the Gray Eagle features a fault-tolerant control system. The aircraft incorporates triple-redundant avionics system architecture.

The UAS has an increased wingspan compared to that of Predator. The modular architecture of Gray Eagle allows integration and operation of multiple payloads. Gray Eagle has a length of nine metres, wingspan of 17m and height of 2.1m.

Gray Eagle can carry an internal payload of 261kg and external payload of 227kg. It is capable of carrying multiple payloads, including electro-optical / infrared (EO/IR) with laser designation, STARLite Synthetic Aperture Radar (SAR) / ground moving target indicator (GMTI) sensor, communications relay and four Hellfire missiles.

The wing hardpoints can be fitted with external payloads such as expendable sensors and weapons. The AGM-114 Hellfire air-to-ground missiles fitted to the aircraft can engage ground-based moving and stationary targets within the range of 500m to eight kilometres.

Engine of the US Army's ER/MP UAS

Gray Eagle is powered by Thielert heavy-fuel engine. The engine develops a power output of 165hp. It supports the 'single fuel in the battlefield' concept of the US Army. The engine delivers improved fuel efficiency, while burning either jet or diesel fuel.

MQ-1C Gray Eagle ground control station

Gray Eagle is operated from the one system ground control stations (OSGCS). The OSGCS includes flight critical hardware and software in a modular configuration, mounted on the standard five-ton medium tactical vehicle.

The operator consoles are used to perform command and control, payload control and weapon launch operations.

Gray Eagle can fly at a maximum altitude of 29,000ft. It has an endurance of more than 30 hours. The maximum gross take-off weight of the UAS is 1,633kg. The aircraft has a maximum speed of 150KTAS.


The Global Unmanned Aerial Vehicles (UAV) Market 2011-2021

This project forms part of our recent analysis and forecasts of the global Unmanned Aerial Vehicles (UAV) market available from our business information platform Strategic Defence Intelligence. For more information click here or contact us: EMEA: +44 20 7936 6783; Americas: +1 415 439 4914; Asia Pacific: +61 2 9947 9709 or via email.

MQ-1C Gray Eagle is an extended range / multipurpose unmanned aircraft system.
MQ-1C Gray Eagle UAS is a technologically advanced derivative of the Predator UAV.
The Gray Eagle UAS waits for its mission during Operation Enduring Freedom in Afghanistan.
MQ-1C Gray Eagle UAS is armed with four AGM-114 Hellfire air-to-ground missiles.
A Gray Eagle sits on the tarmac along with 'Apache and Kiowa' at Dugway Proving Ground.