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CASC Rainbow

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CASC Rainbow (Cai Hong, abbreviated as CH) is the name of a series Chinese UAVs developed by China Academy of Aerospace Aerodynamics of China Aerospace Science and Technology Corporation (CASC), also known as the 11th Academy of CASC,[1] or 701st Research Institute. CH series UAVs has a maximum operational radius of 250 km and endurance ranging from an hour to thirty hours.[2]

CH-1

CH-1 is the first member of the Rainbow (CH) series UAV. The general designer was Mr. Shi Wen (石文), who is also the general designer of CH-2, the successor of CH-1, CASC PW-1, the derivative of CH-1, and CASC PW-2, the derivative of CH-2. CH-1 program first begun in 2000, and the success of CH-1 resulted in the establishment of UAV program which eventually led to other designs that followed. CH-1 is mainly intended for reconnaissance and surveillance missions.[2] Specification:[3]

  • Wingspan (m): 4.4
  • Length (m): 3.75
  • Height (m): 0.87
  • Weight (kg): 40
  • Payload (kg): 4.5
  • Fuel (kg): 26
  • Max speed (km/h): 170
  • Cruise speed (km/h): 120 – 150
  • Normal radius (km): > 100
  • Normal operating altitude (km): 1 – 3
  • Ceiling (km): 4.6
  • Max range (km): 740 @ 1 km altitude and 124 km/h speed
  • Endurance (h): 6
  • Rate of climb (m/s): 4.3
  • Turn radius (m): 290
  • g overload: - 1.5 to 3
  • Launch: rocket assisted + catapult mounted on vehicle
  • Recovery: parachute
  • Max wind scale allowed for operation: 5

CH-2

CH-2 is second member of Rainbow (CH) series UAV and it is a development of earlier CH-1, with identical twin-boom layout. As with its predecessor CH-1, propulsion of CH-2 is also provided by a two-blade propeller driven by a pusher engine mounted at the rear end of the fuselage, and the UAV is launched via vehicle mounted catapult with rocketed assisted take-off.[4][5] CH-2 is mainly intended for reconnaissance and surveillance missions.[2]

CH-3

CH-3 is a fixed wing UCAV of the Rainbow series. CH-3 adopts the unusual canard layout, similar to the Jetcruzer 450 and the Rutan VariEze. This means that the CH-3 lacks centrally located vertical tail, but has large winglets and canards. Propulsion is provided by a three-blade propeller driven by a pusher engine mounted on empennage. The main landing wheels of the tricycle landing gear has fairing to reduce drag.[6]

In January, 2015, a CH-3 drone was reported to be have crashed in the north of Nigeria.[7] It is believed the drone was involved in Nigeria's struggle against the Islamic militant group, Boko Haram.[8] China supplied the CH-3 to Nigeria government prior to 2014, along with YC-200 guided bombs and AR-1 air-to-ground missile.[9]

Specification:[6]

  • Wingspan (m): 8
  • Range (km): 960
  • Endurance (h): 12
  • Payload (kg): 60 – 80
  • Ceiling (km): 4

CH-3A

CH-3A is the development of CH-3 and share the identical layout. Improvement of CH-3A over CH-3 includes that the maximum payload is increased to more than 100 kg, and satellite data link is also incorporated.[6] Specification:[10]

  • Payload (kg): 180 maximum
  • Endurance (h): 6 with maximum payload
  • Ceiling (Km): 4
  • Max Range (km): 960

CH-4

File:Iraqi Air Force CH-4 Drone.jpg
Iraqi Air Force CH-4B Drone

CH-4 is the largest fixed wing UCAV of the Rainbow series (as of end of 2013).[2] Externally, CH-4 looks almost identical to General Atomics MQ-9 Reaper, and the only distinct visual difference between two UAVs is that the ventral fin below the V-tail on MQ-9 is absent on CH-4.[11][12] There are two versions, the CH-4A and CH-4B. The CH-4A is a reconnaissance drone (capable of a 3500–5000 km range and a 30-40 hour endurance) while the CH-4B is a mixed attack and reconnaissance system with provisions for 6 weapons and a payload of up to 250 to 345 kg.

CH-4 is capable of firing air-to-ground missile from altitude of 5,000 meters, therefore the aircraft can stay outside of effective range of most anti-aircraft guns. It also allow CH-4 to be able to fire from a position that provides wider viewing area.[13]

Vasiliy Kashin, a China specialist at Moscow's Centre for Analysis of Strategies and Technologies, said that The CH-4B UCAV has been exported to Egypt, Saudi Arabia and Iraq. [14]

CH-5

Latest UCAV of the Rainbow series, with a payload of over 900 kg, a maximum takeoff weight of over 3 tons, and an endurance of over 30 hours. It conducted its maiden flight in August 2015.[15]

CH-91

CH-91 is a fixed-wing UAV in twin-boom layout with inverted v-tail and a pair of skids as landing gear. Propulsion is provided by a two-blade propeller driven by a pusher engine mounted at the rear end of the fuselage.[16][17] CH-91 is mainly intended for reconnaissance and surveillance missions.[2]

CH-92

CH-92 is a fixed-wing UAV in conventional layout with V-tail and tricycle landing gear. Propulsion is provided by a propeller driven by a pusher engine mounted at the empennage. CH-92 is mainly intended for reconnaissance and surveillance missions.[2]Cite error: A <ref> tag is missing the closing </ref> (see the help page). CH-803 is mainly intended for reconnaissance and surveillance missions.[2] CH-802 program begun in 2007 and was completed in 2008. Specification:[18][19]

  • Wingspan (m): 3
  • Length (m): 1.8
  • Weight (kg): 6.5
  • Payload (kg): 1
  • Radius (km): 30
  • Normal operating altitude (km): 0.3 – 1
  • Normal radius (km): 30 – 50
  • Cruise speed (km/h): 60
  • Endurance (h): 2.5
  • Ceiling (km): 4
  • Launch: by hand

CH-803

CH-803 is a fixed-wing UAV with a cylindrical fuselage and canards, but without tailplane. Propulsion is provided by two-blade propeller driven by a tractor engine mounted in the nose. Another unique feature of CH-803 is that it adopts forward-swept wing.[18] CH-803 is mainly intended for reconnaissance and surveillance missions.[2] CH-803 program begun in 2008 and was completed in 2011. Specification:[19]

  • Wingspan (m): 3
  • Length (m): 1.8
  • Weight (kg): 18
  • Payload (kg): 3.5
  • Radius (km): 30
  • Normal operating altitude (km): 0.5 – 1.5
  • Normal radius (km): 50 – 80
  • Cruise speed (km/h): 80 – 110
  • Endurance (h): 5
  • Ceiling (km): 3.5
  • Launch: catapult
  • Recovery: parachute

CH-901

CH-901 is a fixed-wing UAV in conventional layout with cylindrical fuselage and high-wing configuration. Propulsion is provided by a two-blade propeller driven by a pusher engine mounted at the end of empennage.[20] CH-901 is designed as an UCAV.[2][21]

Operators

 Egypt
 Iraq
 Nigeria

See also

List of unmanned aerial vehicles of the People's Republic of China

References

  1. ^ http://today.hit.edu.cn/uploadfiles/2013/7-11/%E4%B8%AD%E5%9B%BD%E8%88%AA%E5%A4%A9%E7%A7%91%E6%8A%80%E9%9B%86%E5%9B%A2%E5%85%AC%E5%8F%B8%E7%AC%AC%E5%8D%81%E4%B8%80%E7%A0%94%E7%A9%B6%E9%99%A2.pdf
  2. ^ a b c d e f g h i "Rainbow (CH) UAVs". Retrieved 2012-11-12.
  3. ^ CH-1
  4. ^ CH-2
  5. ^ CH-2 UAV
  6. ^ a b c "CH 3 & 3A". Retrieved 2008-11-08.
  7. ^ a b "It Seems a Chinese Missile Drone Just Crashed in Nigeria". Medium. 28 January 2015.
  8. ^ a b "Did An Armed Chinese-Made Drone Just Crash in Nigeria?". Popular Science. 28 January 2015.
  9. ^ a b "CH-3 fighting in Nigeria". Retrieved 2014-12-29.
  10. ^ CH-3A
  11. ^ [1]
  12. ^ "Red dawn: Communist China stepping up drone deployment,"The Washington Times, March 26, 2013
  13. ^ "CH-4 firing from high altitude". AirForceWorld.com. Retrieved 2015-05-06.
  14. ^ a b "China Again Tries To Pierce Gulf Defense Market". defensenews.com. 6 November 2015.
  15. ^ http://news.ifeng.com/a/20150830/44550011_0.shtml
  16. ^ CH-97
  17. ^ http://news.xinhuanet.com/photo/2012-11/15/c_123955248_5.htm
  18. ^ a b "CH-802 & 803". Retrieved 2010-11-06.
  19. ^ a b "CH-802 and 803". Retrieved 2013-11-21.
  20. ^ CH-901
  21. ^ http://news.xinhuanet.com/photo/2012-11/15/c_123955248_8.htm
  22. ^ http://www.janes.com/article/55240/iraq-unveils-ch-4-uavs. {{cite web}}: Missing or empty |title= (help)
  23. ^ "Rainbow UAV gives Iraq new spectrum abilities". Flight International: 21. 20 October 2015.
  24. ^ "CH-4 drone in Iraq".
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