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AAI RQ-7 Shadow

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Title: AAI RQ-7 Shadow  
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AAI RQ-7 Shadow

RQ-7 Shadow
Shadow UAV in Iraq
Role Tactical reconnaissance UAV for ground maneuver forces
Manufacturer AAI Corporation
First flight 1991
Introduction 2002[1]
Status Active, in production
Primary users United States Army
9 other users
Number built 100+ [2]
Unit cost
Per system: US$15.5 million (2011 dollars[3]
Per aircraft: US$750,000.00 (2011 dollars)[3]
Developed from RQ-2 Pioneer

The RQ-7 Shadow unmanned aerial vehicle (UAV) is used by the United States Army, Marine Corps, Australian Army and Swedish Army for reconnaissance, surveillance, target acquisition and battle damage assessment. Launched from a trailer-mounted pneumatic catapult, it is recovered with the aid of arresting gear similar to jets on an aircraft carrier. Its gimbal-mounted, digitally stabilized, liquid nitrogen-cooled electro-optical/infrared (EO/IR) camera relays video in real time via a C-band line-of-sight data link to the ground control station (GCS).

In the US, the Army's 2nd Battalion, 13th Aviation Regiment at Fort Huachuca, AZ, trains soldiers, Marines, and civilians in the operation and maintenance of the Shadow UAV. The training program is mainly undertaken by civilian instructors.


The RQ-7 Shadow 200 unmanned aerial vehicle is of a high-wing, constant chord pusher configuration with a twin-tailboom empennage and an inverted v-tail elerudder. The aircraft is powered by a 38 bhp (28 kW) AR741-1101 Wankel engine designed and manufactured by UAV Engines Ltd in the United Kingdom.[4][5] Onboard electrical systems are powered by a GEC/Plessey 28 volt, direct current, 2,000 watt generator.[4][5] Currently, the primary payload for the aircraft is the Israeli Aircraft Industries POP300 Plug-in Optical Payload which consists of a forward-looking Infrared camera, a daytime TV camera with a selectable near-infrared filter and a laser pointer.[5][6] The aircraft has fixed tricycle landing gear. Takeoffs are assisted by a trailer-mounted pneumatic launcher which can accelerate the 375 pound aircraft to 70 knots (130 km/h) in 50 feet (15 m).[5] Landings are guided by a Tactical Automatic Landing System, developed by the Sierra Nevada Corporation, which consists of a ground-based micro-millimeter wavelength radar and a transponder carried on the aircraft.[5][7] Once on the ground, a tailhook mounted on the aircraft catches an arresting wire connected to two disk brake drums which can stop the aircraft in less than 170 feet (52 m).[5]

The aircraft is part of a larger system which currently uses the M1152-series of Humvees for ground transport of all ground and air equipment. A Shadow 200 system consists of four aircraft, three of which are transported in the Air Vehicle Transporter (AVT). The fourth is transported in a specially designed storage container to be used as a spare. The AVT also tows the launcher. The AVT Support Vehicle and trailer contain extra equipment to launch and recover the aircraft, such as the Tactical Automatic Landing System. Maintenance equipment for the aircraft is stored in the Maintenance Section Multifunctional (MSM) vehicle and trailer as well as the M1165 MSM Support Vehicle and its associated trailer.

Two Humvee-mounted Ground Control Stations (GCS), also part of the Shadow 200 system, control the aircraft in flight. Each station has an associated Ground Data Terminal (GDT), which takes commands generated by the GCS and modulates them into radio waves received by the aircraft in flight. The GDT receives video imagery from the payload, as well as telemetry from the aircraft, and sends this information to the GCS. A trailer, towed by the M1165 GCS support vehicle, carries the GDT and houses a 10 kW Tactical Quiet Generator to provide power for its associated GCS. The Shadow 200 system also includes a Portable Ground Control Station (PGCS) and Portable Ground Data Terminal (PGDT), which are stripped-down versions of the GCS and GDT designed as a backup to the two GCSs.[5]

A fielded Shadow 200 system requires 22 soldiers to operate it. Army modelling indicates that crew workload is highest at takeoff, and second-highest at landing.[8]


The RQ-7 Shadow is the result of a continued US Army search for an effective battlefield UAV after the cancellation of the RQ-6 Outrider aircraft. AAI Corporation followed up their RQ-2 Pioneer with the Shadow 200, a similar, more refined UAV. In late 1999, the army selected the Shadow 200 to fill the tactical UAV requirement, redesignating it the RQ-7. Army requirements specified a UAV that used a gasoline engine, could carry an electro-optic/infrared imaging sensor turret, and had a minimum range of 31 miles (50 kilometers) with four-hour, on-station endurance. The Shadow 200 offered at least twice that range, powered by a 38 hp (28 kW) rotary engine. The specifications also dictated that UAV would be able to land in an athletic field.[9]

Operational history

By July 2007, the Shadow platform accumulated 200,000 flight hours, doubling its previous record of 100,000 hours in 13 months.[10][11] The system then surpassed 300,000 flight hours in April 2008,[12] and by May 2010, the Shadow system had accumulated over 500,000 flight hours. As of 2011, the Shadow had logged over 709,000 hours.[3] The Shadow platform has flown over 37,000 sorties in support of operations in Iraq and Afghanistan by US Army and Army National Guard units.[12] On 6 August 2012, AAI announced that the Shadow had achieved 750,000 flight hours during more than 173,000 missions.[13]

Shadow did not see service in the Afghanistan campaign of 2001–2002, but it did fly operational missions in support of Operation Iraqi Freedom. The operating conditions in Iraq proved hard on the UAVs, with heat and sand leading to engine failures, resulting in a high-priority effort to find fixes with changes in system technology and operating procedures. Shadow UAVs have since flown more than 600,000 combat hours in support of the Wars in Iraq and Afghanistan.[14]

In 2007, the United States Marine Corps began to transition from the RQ-2 Pioneer to the RQ-7 Shadow.[15] VMU-1, VMU-2 have completed their transition from the RQ-2 to the RQ-7 and ScanEagle while VMU-3 and VMU-4 have been activated as Shadow and ScanEagle elements.[16][17][18] VMU-3, was activated on 12 September 2008 and VMU-4 conducted its inaugural flight on 28 September 2010 in Yuma, Arizona.[18][19] In October 2007, VMU-1 became the first Marine Corps squadron to see combat in Iraq.[15] VMU-2 deployed a Shadow detachment to Afghanistan in 2009, with VMU-3 following in January 2010.[17][18]

The Navy provided personnel for four Shadow platoons in support of army brigades deployed in Iraq. The first two platoons returned from 6-month tours in Iraq in January and February 2008. The Navy personnel went through the Army's training program at Fort Huachuca, Arizona.[20]

The U.S. Army is considering a plan to reform its aerial scout capabilities by scrapping its fleet of OH-58 Kiowa helicopters from 2015-2019 and replacing them with AH-64 Apache attack helicopters teamed with Shadow and MQ-1C Grey Eagle UAVs. Using unmanned assets to scout ahead would put the pilots of manned aircraft out of reach of potential harm. Reformed combat aviation brigades (CAB) would consist of a battalion of 24 Apaches for attack missions and an armed reconnaissance squadron of another 24 Apaches teamed with three Shadow platoons totaling 12 RQ-7s overall. It would also include a Grey Eagle company. The manned-unmanned teaming of Apaches and UAVs can meet 80 percent of aerial scout requirements. The plan may be in jeopardy due to lack of funding for enhancements to the Shadow system. Budget cuts have reduced research and development funding for software modifications to interface the Shadow with the Apache. Upgrades needed include a datalink, which would allow the aircraft to work with high-definition cameras and other electronic systems, and the One System Remote Video Transceiver for soldiers to view video from multiple systems.[21]

In early July 2014, the U.S. Army sent RQ-7 Shadows to Baghdad as part of efforts to protect embassy personnel against Islamic State militant attacks. The Shadows were shipped along with Apache attack helicopters, which may be able to use them through manned/unmanned teaming to share information and designate targets.[22]

RQ-7 in civilian airspace

The Shadow system has also received a special airworthiness certificate (experimental) from the Federal Aviation Administration authorizing operations at Benson Municipal Airport, a general aviation facility in southeastern Arizona. This airworthiness certificate is the first issued by the FAA permitting an unmanned aircraft to operate at a public-use airport that serves general aviation, and the first FAA certificate covering the system's technologically sophisticated automated landing system. This is currently the only FAA certification category available to UAS manufacturers.


RQ-7A Shadow

The RQ-7A was the initial version of the Shadow 200 UAV developed by AAI. The first low-rate initial-production systems were delivered to the US Army in 2002 with the first full-scale production systems being delivered in September 2003.[9] The RQ-7A was 11 ft 2 in (3.40 m) long and had a wingspan of 12 ft 9 in (3.89 m) with a 327 lb (148 kg) max takeoff weight.[9] The aircraft's endurance ranged between 4 to 5.5 hours depending on mission. The "A" model aircraft also had the AR741-1100 engine which could use either 87 octane automotive gasoline or 100LL aviation fuel.[5] The "A" model also featured IAI's POP200 payload.[5][6]

RQ-7B Shadow

The RQ-7B leaves its launcher.

Production of Shadow aircraft shifted to a generally improved RQ-7B variant in the summer of 2004. The RQ-7B features new wings increased in length to 14 ft (4.3 m). The new wings are not only more aerodynamically efficient, they are "wet" to increase fuel storage up to 44 liters for an endurance of up to 6 hours.[5] The payload capability has been increased to 45 kilograms (99 pounds).[9] After reports from Iraq that engines were failing, in 2005, the Army's UAV project manager called for the use of 100LL, an aviation fuel, rather than the conventional 87 octane mogas. Avionics systems have been generally improved, and the new wing is designed to accommodate a communications relay package, which allows the aircraft to act as a relay station. This allows commanders or even the aircraft operators themselves to communicate via radio to the troops on ground in locations that would otherwise be "dead" to radio traffic.

Other incremental improvements to the system include replacing the AR741-1100 engine with the AR741-1101 which increases reliability through the use of dual spark plugs as well as limiting the fuel to 100LL. Also, the older POP200 payload was replaced with the newer POP300 system.[5]

In February 2010, AAI began a fleet update program to improve the Shadow system. The improvements include installing the wiring harnesses and software updates for IAI's POP300D payload which includes a designator for guiding laser-guided bombs. Other improvements in the program will include an electronic fuel injection engine and fuel system to replace the AR741-1101's carburetored engine. The most visible improvement to the system will be a wider wing of 20 feet (6.1 m) in span which is designed to increase fuel capacity and allow for mission endurance of almost 9 hours. The new wings will also include hardpoints for external munitions.[23]

Preliminary TCDL testing conducted at Dugway Proving Ground was a success. This led to an estimated fielding date of May 2010 for TCDL.[9]

A joint Army-Marine program is testing IED jamming on a Shadow at MCAS Yuma. Another joint effort is to view a 4x4km ground area from 12,000 feet.[24]

A test version called STTB has been flown in Summer 2011. AAI is developing a bigger version called M2 with a blended wing to include a 3-cylinder 60 hp Lycoming heavy fuel engine,[25][26] and began flight testing in August 2012.[27] The M2 Shadow is expected to be fielded in 2015. The M2 Shadow has 80 percent commonality with the Shadow 200 but has a different center fuselage giving it greater range and loiter-on-target time with a dual payload capability.[28]

The Army is now proposing the upgraded Shadow 152A, which includes Soldier Radio Waveform software, which allows both the command post and their troops to see the images that the UAV is projecting, as long as they are on the same frequency. It also increases the distance and area of communication.[29]

Armed Shadow

On 19 April 2010 the Army issued a "solicitation for sources sought" from defense contractors for a munition for the Shadow system with a deadline for proposals due no later than 10 May 2010.[30] Although no specific munition has been chosen yet, some possible munitions include the General Dynamics 81 mm 10-pound[31][32][33] air-dropped guided mortar, as well as the QuickMEDS system for delivering medical supplies to remote and stranded troops. The Army subsequently slowed work, and the Marine Corps then took the lead on arming the RQ-7 Shadow. Raytheon has conducted successful flight tests with the Small Tactical Munition,[34] and Lockheed Martin has tested the Shadow Hawk glide weapon from an RQ-7.[35] On 1 November 2012, General Dynamics successfully demonstrated their guided 81 mm Air Dropped Mortar, with three launches at 7,000 ft hitting within seven meters of the target grid.[36]

As of August 2011, the Marine Corps has received official clearance to experiment with armed RQ-7s, and requires AAI to select a precision munition ready for deployment.[37] AAI was awarded $10 million for this in December 2011, and claims a weapon has already been fielded by the Shadow.[38][39] In 2014, Textron launched the Fury precision weapon from a Shadow 200.[40]

Shadow 600

AAI has also built a scaled-up Pioneer derivative known as the "Shadow 600". It also resembles a Pioneer, except that the outer panels of the wings are distinctively swept back, and it has a stronger [42]

SR/C Shadow

AAI intends to modify two Shadows with a Carter rotor on top for vertical take-off and landing, eliminating the need for the recovery and pneumatic launcher systems, while increasing payload and endurance. AAI is working with Textron sister company Bell Helicopter on the project.[43][44] It is expected to fly in 2012.[45] AAI also expected to use the SR/C technology for the Shadow Knight, a powered-rotor two-propeller surveillance aircraft for the US Navy MRMUAS program.[46][47] However, the program was cancelled in 2012 to save $1.5 billion.[48][49]

Incidents and accidents

On 15 August 2011 a US Air Force C-130 cargo plane collided with a RQ-7 while on approach to FOB Sharana in Paktika Province, Afghanistan. The C-130 made an emergency landing with damage to two engines and one wing, while the RQ-7 was destroyed completely.[50] The collision caused the cargo aircraft to be grounded for several months while being fixed, while the RQ-7 wreckage was never recovered. Early reports indicating that the mishap occurred when the C-130 took off without clearance were incorrect. The investigating board determined that the mishap was largely due to poor local air traffic control training and supervision.

On 3 April 2014 a Pennsylvania National Guard RQ-7 participating in training exercises at Fort Indiantown Gap crashed near an elementary school in Pennsylvania and was then hit by a civilian vehicle destroying the drone. No injuries were reported.[51][52]

Specifications (200 Family)

General characteristics

  • Length: 11.2 ft (3.4 m)
  • Wingspan: 14 ft (4.3 m)
  • Height: 3.3 ft (1.0 m)
  • Empty weight: 186 lb (84 kg)
  • Gross weight: 375 lb (170 kg)
  • Powerplant: 1 × Wankel UAV Engine 741 used only with Silkolene Synthetic Oil , 38 hp (28 kW)


  • Maximum speed: 127 mph; 204 km/h (110 kn)
  • Cruising speed: 81 mph; 130 km/h (70 kn)
  • Range: 68 mi (59 nmi; 109 km)
  • Endurance: 6 h/ 9 h Increased Endurance
  • Service ceiling: 15,000 ft (4,572 m) ELOS (Electronic Line Of Sight)

Note: When outfitted with IE (Increased Endurance) Wings, the CRP (Communications Relay Package) and the 1102 engine, endurance time is increased to 9 hours, wing span is increased to approx. 22 feet (6.7 m), and the service ceiling is 18,000 ft (only with authorization).


  • Australian Army; The Australian Government has bought 18 aircraft to supplement the current use of ScanEagles,[53] and began using them in Afghanistan in May 2012.[54]
  • In July 2010, the Italian army ordered four Shadow 200 systems.[55]
  • [42] a larger, fuel injected Shadow variant. Some of these Romanian machines have been used in support of Polish troops serving in Iraq..
  • Swedish Army; 8 aircraft (2 systems) have been ordered and have been delivered early in 2011. However these units will be modified by SAAB to create a system that is more suited for Swedish use. It will be a different version from the RQ-7 Shadow, named UAV03 Örnen[56]
 United States

See also

Related lists


  • This article contains material that originally came from the web article Unmanned Aerial Vehicles by Greg Goebel, which exists in the Public Domain.
  1. ^ "RQ-7 Shadow UAV". Olive-Drab. Retrieved 15 May 2012. 
  2. ^ a b Pakistan gets U.S. drones United Press International, 26 January 2010.
  3. ^ a b c Joakim Kasper Oestergaard (September 30, 2013). "About the RQ-7 Shadow". Aeroweb. Retrieved April 4, 2014. 
  4. ^ a b "AR741 - 38 BHP Engine for surveillance uavs". UAV Engines Ltd. Retrieved April 4, 2014. 
  5. ^ a b c d e f g h i j k US Army Technical Manual 9-5895-YYY-10 Shadow 200 TUAV System, 22 October 2004.
  6. ^ a b "Pop Family". Israeli Aircraft Industries. Retrieved April 4, 2014. 
  7. ^ Sierra Nevada Corporation Web Site
  8. ^ Hunn & Heuckeroth. A Shadow Unmanned Aerial Vehicle (UAV) Improved Performance Research Integration Tool (IMPRINT) Model Supporting Future Combat Systems pp12+14 Army Research Laboratory, February 2006. Retrieved 26 November 2011.
  9. ^ a b c d e Goebel, Greg. "Unmanned Aerial Vehicles: [8.1] US ARMY RQ-7A SHADOW 200 / SHADOW 600" Greg Goebel / In The Public Domain. 1 January 2009. [1]
  10. ^ Child, Jeff. "Small UAVs Step Up to Advanced Comms Capabilities". COTS Journal. Retrieved 6 June 2012. 
  11. ^ Miller, Mollie. "Cutting edge UAS technology launches at Fort Rucker". Army Flier. US Army TRADOC. Retrieved 6 June 2012. 
  12. ^ a b "AAI Shadow 200 Tactical Unmanned Aerial Vehicle". Military Aircraft. Military Factory. Retrieved 6 June 2012. 
  13. ^ Shadow achieves 750,000 hours -, 6 August 2012
  14. ^ Cole, William (25 May 2011). "Hawaii Guard gets flock of Shadow UAVs.". Star Advertiser. Retrieved 14 May 2012. 
  15. ^ a b Talton, Trista. "U.S. Marines’ Shadow UAV Sees First Combat". Retrieved 18 November 2007. 
  16. ^ "Marine Unmanned Aerial Vehicle Squadron 1 History". 3D Marine Aircraft Wing. Retrieved 10 June 2012. 
  17. ^ a b "Marine Unmanned Aerial Vehicle Squadron Two (VMU-2) History". 2nd Marine Aircraft Wing. Retrieved 10 June 2012. 
  18. ^ a b c "Marine Unmanned Aerial Vehicle Squadron 3 History". 3D Marine Aircraft Wing. Retrieved 10 June 2012. 
  19. ^ Jennings, Gareth (31 July 2008). "USMC prepares to stand up third UAV squadron". IHS Jane's. Retrieved 10 June 2012. 
  20. ^ DC Military: A month later, VC-6 unit’s homecoming just as sweet
  21. ^ Scout mission compromised by funding cut -, 1 February 2014
  22. ^ Army Apache helos used in strikes against Islamic State -, 5 October 2014
  23. ^ "AAI’s Shadow Unmanned Aircraft takes flight with new extended wing design" Unmanned Vehicles Magazine Online, 19 April 2010.
  24. ^ Warwick, Graham. Shadow punches above its weight Aviation Week, 4 February 2011. Retrieved 4 February 2011.
  25. ^ AAI flies testbed for next-generation Shadow UAV developments, 2 August 2011. Retrieved 9 September 2011.
  26. ^ AAI flys heavily modified Shadow M2 STTB UAV’s, 6 August 2011. Retrieved 9 September 2011.
  27. ^ Gourley, Scott. "AAI Textron begins Shadow M2 flight tests" Shephard Media, 9 August 2012. Retrieved 11 August 2012.
  28. ^ Apache-UAV teaming combines 'best capabilities of man, machine' -, 8 May 2014
  29. ^ Upgrades to the UAV Shadow in evaluation stage -, 3 November 2012
  30. ^, Solicitation# W31P4Q-10-R-0142, 19 April 2010
  31. ^ "Arming RQ-7 UAVs: The Shadow Knows..." Defense Industry Daily, 3 May 2012. Retrieved 10 June 2012.
  32. ^ "81mm Mortar Ammunition And Fuzes" Gary's U.S. Infantry Weapons Reference Guide, 10 May 2006. Retrieved 10 June 2012.
  33. ^ "General Dynamics demonstrates precision strike capability for Tactical UAVs with 81 mm air-dropped guided mortar" Unmanned Vehicles Magazine Online, 6 April 2010.
  34. ^ "USMC seeks to arm Shadow, fast and without US Army help". Retrieved 19 December 2010. 
  35. ^ "Lockheed Martin's Shadow Hawk Munition Launched from Shadow UAS for the First Time" Defense Unmanned, 1 May 2012. Retrieved 10 June 2012.
  36. ^ ADM test -, 1 November 2012
  37. ^ Trimble, Stephen. AUVSI: Marine Corps experiments with armed Shadow Flight International, 17 August 2011
  38. ^ Trimble, Stephen. Missed Targets Prompted US Marine Corps to Arm Shadows Flight International, 12 January 2012. Retrieved 2 February 2012.
  39. ^ AAI Gets $66M Contracts for Weapons and Laser Designators on Shadow UAS Vision, 5 January 2012. Retrieved 2 February 2012.
  40. ^ Kesselman, Scott. "Textron Fury Missile Successfully Fired from Tactical UAS" AUVSI, 24 September 2014. Accessed: 27 September 2014.
  41. ^ Shadow 600 – Specifications & Data Sheet 9 May 2011. Retrieved 6 June 2012.
  42. ^ a b "Romania takes delivery of Shadow 600s. US Army tries again with brigage-level UAV. US Navy selects UCAV contractors". Retrieved 4 June 2013. 
  43. ^ Warwick, Graham. AAI adds unpowered rotor to Shadow UAV for VTOL Aviation Week, 12 November 2010. Retrieved 27 January 2011.
  44. ^ Warwick, Graham. Carter flies VTOL hybrid Aviation Week, 26 January 2011. Retrieved 27 January 2011.
  45. ^ Warwick, Graham. AAI Flies Precursor To Advanced Shadow UAVs Aviation Week, 1 August 2011. Retrieved 2 September 2011.
  46. ^ Warwick, Graham. AAI Unveils Shadow Knight UAV For MRMUAS Aviation Week, 24 January 2012. Retrieved 30 January 2012.
  47. ^ Warwick, Graham. Introducing AAI's Shadow Knight Aviation Week, 24 January 2012. Retrieved 4 February 2012.
  48. ^ "PE 0305237N: Medium Range Maritime UAS", February 2012. Retrieved 11 August 2012.
  49. ^ Mortimer, Gary. "MRMUAS to be cancelled" SUAS news, 13 February 2012. Retrieved 11 August 2012.
  50. ^ Hodge, Nathan, "U.S. Says Drone, Cargo Plane Collide Over Afghanistan", Wall Street Journal, 17 August 2011, p. 11.
  51. ^
  52. ^
  53. ^ Army buys 18 Shadow UAVs Australian Aviation (magazine), 2 August 2010.
  54. ^ "Shadow Tactical Unmanned Aerial System Commences Afghan Operations" Defense Unmanned / Department of Defence (Australia), 4 May 2012. Retrieved 10 June 2012.
  55. ^ "Italy Upgrades its Army with Shadow UAVs". Archived from the original on 7 August 2010. Retrieved 3 August 2010. 
  56. ^ "Sweden to acquire AAI's Shadow 200" Flight International, 21 May 2010.
  57. ^ a b UAV Growth Continues -, 30 October 2012
  58. ^ More RQ-7s for US Army -, 5 November 2012

External links

  • RQ-7 Shadow 200 Tactical UAV
  • Shadow TUAV update
  • UAV payloads
  • Iran Protests U.S. Aerial Drones (RQ-7 crashes in Iran), Washington Post, 8 November 2005
  • AAI Corporation (development/manufacturing)
  • Shadow 200 Brochure
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