Editing Lockheed CP-140 Aurora

{{Short description|Canadian maritime patrol aircraft}}
{{Distinguish|Aurora (aircraft)}}
{{Use Canadian English|date=March 2018}}
{{Use dmy dates|date=November 2021}}
{{Infobox aircraft 
  |name = CP-140 Aurora <br /> CP-140A Arcturus
  |image = File:Lockheed CP-140 Aurora, Canada - Air Force JP7645830.jpg
  |caption = CP-140 Aurora 140107 flying at [[John C. Munro Hamilton International Airport]] near [[Mount Hope, Hamilton, Ontario|Mount Hope, Ontario]]
  |type = [[Maritime patrol aircraft]] (CP-140) <br /> MPA [[trainer aircraft]] (CP-140A)
  |manufacturer = [[Lockheed Corporation]]
  |first_flight = 22 March 1979 (CP-140)
  |introduction = 1980
  |retired = 2011 (CP-140A only)
  |number_built = 21 (18 CP-140M + 3 CP-140A)
  |status = Active (CP-140M only)
  |primary_user = [[Royal Canadian Air Force]]
  |developed_from = [[Lockheed P-3 Orion]]
  |variants = 
}}

The '''Lockheed CP-140 Aurora''' is a [[patrol aircraft|maritime patrol aircraft]] operated by the [[Royal Canadian Air Force]]. The aircraft is based on the [[Lockheed P-3 Orion]] airframe, but mounts the electronics suite of the [[Lockheed S-3 Viking]]. [[Aurora (mythology)|"Aurora"]] refers to the Roman goddess of dawn who flies across the sky each morning ahead of the sun.<ref>[http://www.mythencyclopedia.com/Ar-Be/Aurora.html Myths Encyclopedia] Retrieved 26 May 2015</ref> Aurora also refers to the [[Aurora Borealis]], the "northern lights", that are prominent over northern Canada and the [[Arctic Ocean]].

The '''CP-140A Arcturus''' was a related variant used primarily for pilot training and coastal surface patrol missions.

==Design and development==
The CP-140 Aurora is very similar externally to the Lockheed P-3C Orion (Canadian ESM wingtip pods instead of the American ESM wing pod), but is different internally, using two sets of mission systems that were first installed in yet another Lockheed anti-submarine warfare aircraft, the carrier-based S-3A Viking. The aircraft's sensors are primarily intended for [[anti-submarine warfare]] (ASW) work but are also capable of maritime surveillance, counter-drug and search-and-rescue missions. The CP-140 is Canada's only strategic Intelligence Surveillance and Reconnaissance (ISR) aircraft, conducting long range missions over land, water and [[littoral]] areas. These missions are flown in support of [[Canadian Joint Operations Command]], the [[Royal Canadian Mounted Police|RCMP]], and several other federal government departments.

In 1991, [[Lockheed Corporation|Lockheed]] shut down its production lines in [[Burbank, California]], for the P-3 Orion, which shares the same airframe with the CP-140. Three surplus airframes on hand were purchased by the Air Command, but delivered without the anti-submarine fit. These three aircraft were designated the '''CP-140A Arcturus''' and were used primarily for pilot training and coastal surface patrol missions.<ref>[http://www.rcaf.com/Aircraft/aircraftDetail.php?AURORA-159 "Lockheed CP-140 Aurora."] ''rcaf.com.'' Retrieved: 30 June 2011.</ref>

===Aurora Incremental Modernization Project===
[[File:Lockheed CP-140 Aurora, Canada - Air Force AN0618827.jpg|thumb|CP-140 Aurora 140105 departing from [[London International Airport]] near [[London, Ontario]], in 2004]]
 
The Aurora Incremental Modernization Project (AIMP), initiated in 1998 to upgrade electronics of the Aurora fleet was halted by the government on 20 September 2007 to evaluate whether the aging fleet should continue to be upgraded or replaced by more modern aircraft.<ref>[https://www.cbc.ca/news/canada/ottawa-halts-1-6b-upgrade-of-patrol-aircraft-1.677693 "Ottawa halts $1.6B upgrade of patrol aircraft."] ''CBC.ca.'' Retrieved: 18 August 2010.</ref> On 18 December 2007 the [[Department of National Defence (Canada)|Department of National Defence]] rescinded this work suspension so that the project could continue. Work includes upgrading computer, navigation, communication and radar systems as well as making structural improvements to ten of eighteen aircraft. The intent of the modernization project is to "keep the aircraft safe and operationally viable until 2020".<ref>[http://naval.review.cfps.dal.ca/forum/view.php?topic=38 "CP-140 Aurora Modernization."] {{webarchive|url=https://web.archive.org/web/20090113222407/http://naval.review.cfps.dal.ca/forum/view.php?topic=38 |date=2009-01-13 }} ''Canadian Naval Review.'' Retrieved: 18 August 2010.</ref>

AIMP is currently divided into four "blocks". Block I is complete and concentrated on the replacement of unsupportable systems. Block II brought a glass cockpit with the Navigation and Flight Instruments (NFI) component provided by [[CMC Electronics]],<ref>[http://www.ic.gc.ca/eic/site/ad-ad.nsf/eng/ad03883.html "Current Major Crown Projects."] ''ic.gc.ca.'' Retrieved: 18 August 2010.</ref> and a complete replacement of the communications suite. Block III is a wholesale replacement of the aircraft's sensors and mission computer. Block IV consists of a large Wideband Global SATCOM radome on the upper fuselage, [[Directional Infrared Counter Measures|Directed Infrared Counter Measures]] system, Tactical Data Link 16 system, and a new anti-collision light on top of the vertical stabilizer.<ref>[https://www.canada.ca/en/department-national-defence/maple-leaf/defence/2021/11/cp-140-block-technical-airworthiness-certification.html "CP-140 Block IV moves one step closer to Technical Airworthiness certification"] ''canada.ca.'' Retrieved: 19 March 2025.</ref> Block IV reached Full Operational Capability in the summer of 2024.<ref>[https://www.canada.ca/en/department-national-defence/services/procurement/cp-140-aurora.html "CP-140 Aurora fleet modernization and life extension"] ''canada.ca.'' Retrieved: 19 March 2025.</ref>

Once AIMP was completed the CP-140 was designated as CP-140M.

===Aurora Structural Life Extension Program===
The Aurora Structural Life Extension Project (ASLEP) is proceeding with 14 of the 18 Auroras scheduled to receive new wings and the replacement of key structural components. The complete ASLEP solution replaces the aircraft's outer wings, centre wing lower section and horizontal stabilizers with new production components. All fatigue-life limiting structures on the aircraft are replaced with enhanced-design components and improved corrosion-resistant materials that will greatly reduce maintenance costs over the aircraft's service life. This program is expected to extend the CP140s' service life by 15,000 flight hours per airframe.<ref>[http://www.casr.ca/doc-acan-aurora-aslep.htm "Aurora."] ''casr.ca.'' Retrieved: 18 August 2010.</ref>

==Operational history==

===CP-140 Aurora===
[[File:Kaneohe ROK and Canadian P-3s.jpg|thumb|CP-140s and [[Republic of Korea Air Force|South Korean]] P-3s at [[Marine Corps Base Hawaii|Kaneohe Marine Corps Base]] in [[Hawaii]]]]

The Aurora was acquired in the early 1980s to replace the [[CP-107 Argus]] and to further support Canada's anti-submarine warfare mission obligations under [[NATO]] for the northwest Atlantic sector.<ref>Donald 1997, p. 118.</ref> Short deployments to Alaska (Adak), Hawaii (Kaneohe Bay), Iceland (Keflavik), the UK (St Mawgan and Kinloss), and Norway (Andoya) were the norm. However, since the end of the [[Cold War]], they have been used primarily in coastal surveillance and sovereignty patrols by providing an all-weather mission surveillance platform. Increasingly, as the CP-140 moves into the 21st century, it is employed for domestic and international surveillance by CANCOM for security, counter-terrorism and smuggling, as well as to monitor foreign fishing fleets off Canada's coasts. CP-140s have also been deployed on operations such as [[Operation Assistance]] and [[Operation Apollo]].

Deployments have included OP SHARPGUARD (Yugoslavia blockade), OP SIRIUS (Mediterranean Patrols), OP APOLLO (Persian Gulf region), and counter-narcotics patrols in the Gulf of Mexico and Pacific.<ref name="CP-140 Aurora">[http://www.airforce.forces.gc.ca/en/aircraft-current/cp-140.page "CP-140 Aurora."] ''airforce.forces.gc.ca.'' Retrieved: 18 August 2010.</ref>  Through all this, patrols of the Canadian Arctic continue to take advantage of the airframe's unique abilities.<ref>[http://www.airforce.forces.gc.ca/v2/page-eng.asp?id=13 "What we do: In Canada."] {{webarchive|url=https://web.archive.org/web/20101205180702/http://www.airforce.forces.gc.ca/v2/page-eng.asp?id=13 |date=2010-12-05 }} ''airforce.forces.gc.ca.'' Retrieved: 18 August 2010.</ref>

In 2011 and 2012, CP-140 aircraft performed maritime patrol missions in the Libyan waters to help in the enforcement of the no-fly zone over Libya under [[Operation Odyssey Dawn]] and [[Operation Unified Protector]].<ref>[http://www.forces.gc.ca/site/news-nouvelles/news-nouvelles-eng.asp?cat=00&id=3758 "Canadian Forces Deploy Maritime Patrol Aircraft In Response To Situation In Libya."] {{webarchive|url=https://web.archive.org/web/20120922024407/http://www.forces.gc.ca/site/news-nouvelles/news-nouvelles-eng.asp?cat=00&id=3758 |date=2012-09-22 }} ''Canadian Forces website'', 25 March 2011.</ref>

As of January 2017, two CP-140s were conducting overland surveillance missions against ISIL as part of [[Operation Impact]]. However one aircraft was withdrawn in May 2017.<ref>[http://www.forces.gc.ca/en/operations-abroad-current/op-impact.page] {{Webarchive|url=https://web.archive.org/web/20181021003736/http://www.forces.gc.ca/en/operations-abroad-current/op-impact.page |date=21 October 2018 }} "Operation IMPACT" Retrieved:  08 Jan 2017</ref>

From October 2018, due to support the implementation of United Nations Security Council sanctions imposed against North Korea, Canadian Armed Forces deploy periodically a Canadian frigate and/or a CP-140 Aurora on Operation Neon.<ref>[https://www.canada.ca/en/department-national-defence/services/operations/military-operations/current-operations/operation-neon.html] "Operation NEON" Retrieved :07 Aug 2019</ref> In June 2022 it was reported that Chinese jets had repeatedly intercepted the Aurora in a manner which the Canada military said failed to adhere to international air safety norms.<ref>{{cite news |title=Canada alarmed as Chinese fighter pilots 'buzz' Canadian planes over international waters |url=https://globalnews.ca/news/8885980/canada-china-pilots-buzz-planes-asia |agency=Global News}}</ref><ref>{{cite news |title=Canada says Chinese warplanes harassed its patrol aircraft on N.Korea sanctions mission |url=https://www.reuters.com/business/aerospace-defense/canada-says-chinese-warplanes-harassed-its-patrol-aircraft-nkorea-sanctions-2022-06-02 |work=Reuters |date=June 2, 2022}}</ref> Some of these intercepts forced the Aurora to change its flight path to avoid collision with the intercepting aircraft.<ref>{{cite news |title=Canada says Chinese warplanes harassed its patrol aircraft on N.Korea sanctions mission |url=https://www.reuters.com/business/aerospace-defense/canada-says-chinese-warplanes-harassed-its-patrol-aircraft-nkorea-sanctions-2022-06-02 |work=Reuters |date=June 2, 2022}}</ref> Canadian government officials said the incidents were happening with increasing frequency and that they had lodged protests on multiple occasions with their Chinese counterparts, although an article by Global News said that China is not believed to have responded to the reprimands as the interceptions had not stopped continuing.<ref>{{cite news |title=Canada alarmed as Chinese fighter pilots 'buzz' Canadian planes over international waters |url=https://globalnews.ca/news/8885980/canada-china-pilots-buzz-planes-asia |agency=Global News}}</ref> On October 16, 2023, during a Canadian reconnaissance flight over international waters as part of a United Nations resolution to stop illegal oil shipments to North Korea, Chinese fighter jets intercepted the Aurora for multiple hours over the course of the Aurora's flight. One of the fighter jets behaved in an "aggressive manner" by flying back and forth in close proximity and flying with the Canadian plane within its blind spot, and firing off flares from near the front of the plane.<ref>{{Cite web |title=Chinese military jet intercepts Canadian Forces plane in 'aggressive manner' - National {{!}} Globalnews.ca |url=https://globalnews.ca/news/10027324/chinese-military-aircraft-intercept-canadian-forces/ |access-date=2023-10-16 |website=Global News |language=en-US}}</ref>

In February 2023, as a result of [[2018–2023 Haitian crisis|recent violence and unrest]], a CP-140 was deployed to [[Haiti]] to help "disrupt the activities of gangs" by providing surveillance and intelligence.<ref>{{Cite web |date=5 February 2023 |title=Canada sends military aircraft into Haiti's skies as gang violence escalates |url=https://www.ctvnews.ca/politics/canada-sends-military-aircraft-into-haiti-s-skies-as-gang-violence-escalates-1.6260765 |access-date=6 February 2023 |website=CTV News}}</ref> Separately, a CP-140 collaborated with USAF F-22 Raptors to intercept and down an unidentified object over Yukon Territory.<ref>{{Cite web |date=12 February 2023 |title=US stealth fighter shoots down unidentified object over Canada |url=https://news.sky.com/story/trudeau-orders-take-down-of-unidentified-object-in-canadian-airspace-12809002 |access-date=12 February 2023 |website=Sky News}}</ref>

===CP-140A Arcturus===
[[File:CP-140A Arcturus.jpg|thumb|A CP-140A Arcturus 140120 at [[Downsview Airport]] in [[Toronto, Ontario]], [[Canada]] in 2008]]

Lacking the expensive, heavy and sensitive anti-submarine warfare as well as the anti-surface warfare fittings of the CP-140 Aurora, the Arcturus was more fuel efficient and was used for crew training duties (such as ''touch-and-go'' landing practice), general maritime surface reconnaissance (detecting drug operations, smuggling of illegal immigrants, fisheries protection patrols, pollution monitoring, etc.), [[search-and-rescue]] assistance and Arctic sovereignty patrols.  The Arcturus did possess a superior AN/APS-507 surface search radar, incorporating modern functions such as [[track-while-scan]] that the Aurora's AN/APS-506 radar lacks but the Arcturus did not have an integrated mission computer, or mission systems. It did, however, maintain the same military communications suite as the CP-140 Aurora.{{Citation needed|date=March 2007}}

All three aircraft were based at 14 Wing. Upon retirement from flying operations, one was used for technician training with [[No. 404 Squadron RCAF|404 Long Range Patrol and Training Squadron]] on base [[CFB Greenwood]], [[Nova Scotia]], before being moved to the [[Greenwood Military Aviation Museum]] on base.  The last two of the CP-140As were retired in 2011 when they were delivered to the [[309th Aerospace Maintenance and Regeneration Group|Aerospace Maintenance and Regeneration Group (AMARG)]] in [[Tucson]], [[Arizona]].<ref>Nicholson, Pete (Sergeant). [http://www.aviation.ca/content/view/9662/117/ "The Final Flight of CP140/A AC120 to Tucson, Arizona."] {{webarchive|url=https://web.archive.org/web/20110317033143/http://www.aviation.ca/content/view/9662/117/ |date=2011-03-17 }} ''aviation.ca,'' 12 March 2011. Retrieved: 20 March 2011.</ref>

===Replacement===
Several options had been suggested for a CP-140M replacement. These included the [[Boeing P-8 Poseidon]] and the [[Raytheon Sentinel]],<ref>
{{cite web
 | url         = http://www.casr.ca/bg-cp140-replacement-p8.htm 
 | title       = Background – Aurora Alternatives – Boeing P-8A Poseidon Project
 | website     = Canadian American Strategic Review
 | date        = 29 April 2009
 | access-date  = 23 April 2011
 | archive-url  = https://web.archive.org/web/20100524005715/http://www.casr.ca/bg-cp140-replacement-p8.htm  
 | archive-date = 24 May 2010
 | url-status  = dead
}}
</ref><ref>
{{cite web
 | url         = http://www.casr.ca/bg-cp140-replacement-sentinel.htm
 | title       = Background – Aurora Alternatives — Global Express / R1 Sentinel
 | website     = Canadian American Strategic Review
 | date        = 29 April 2009
 | access-date  = 23 April 2011
 | archive-url  = https://web.archive.org/web/20110610152254/http://www.casr.ca/bg-cp140-replacement-sentinel.htm 
 | archive-date = 10 June 2011
 | url-status  = dead
}}
</ref> based on the [[Bombardier Global Express]]-6500, as well as late entrant [[PAL Aerospace]] Global Express 6500-based P-6.<ref>{{cite web | url=https://www.ainonline.com/aviation-news/defense/2023-02-28/pals-global-6500-based-maritime-patroller-emerges | title=PAL's Global 6500-based Maritime Patroller Emerges &#124; AIN }}</ref>

The RCAF had planned to downsize the fleet from eighteen to fourteen aircraft, with three already being withdrawn and a fourth test aircraft to be retired in the near future. The retirement of the CP-140 was originally expected around 2030, and could have resulted in a capability gap as the RCAF did not anticipate replacements to be delivered until 2032 to 2038.<ref>{{cite web | url=http://dgpaapp.forces.gc.ca/en/defence-capabilities-blueprint/project-details.asp?id=975 | title=Canadian Multi-Mission Aircraft - Defence Capabilities Blueprint | date=30 May 2018 }}</ref> The RCAF's Weapon System Manager (WSM) had prepared plans to have the CP-140M operational until 2035 to 2040.<ref>{{cite web | url=http://www.journal.forces.gc.ca/vol21/no2/page26-eng.asp | title=The Lockheed CP-140M 'Aurora', Canada's Current Long Range Patrol Fleet | date=23 February 2021 }}</ref>

On March 28, 2023, the Government of Canada sent a Letter of Request to the US's [[Foreign Military Sales]] program to approve the purchase sixteen P-8A to replace the current CP-140 fleet, but it did not indicate any timeline for delivery.<ref>{{cite web | url=https://www.australiandefence.com.au/news/canada-selects-poseidon-as-cp-140-replacement#:~:text=The%20Canadian%20Government%20has%20selected,been%20in%20service%20since%201980 | title=Canada selects Poseidon as CP-140 replacement - Australian Defence Magazine }}</ref> On June 27, 2023, the US Congress approved the LOR for the Canada to acquire the P-8.<ref>{{cite web | url=https://www.dsca.mil/press-media/major-arms-sales/canada-p-8a-aircraft | title=Canada – P-8A Aircraft &#124; Defense Security Cooperation Agency }}</ref>

On November 30, 2023, Minister of National Defence Bill Blair announced the acquisition of sixteen P-8A Poseidon aircraft for the Royal Canadian Air Force. This acquisition is initially set for fourteen aircraft, with an option of two additional aircraft. It is anticipated by the Department of National Defence that the first aircraft will be delivered in 2026, with full operational capacity by 2033.<ref>{{Cite web |last=Defence |first=National |date=2023-11-30 |title=Canada purchasing up to 16 P-8A Poseidon Multi Mission Aircraft for the Royal Canadian Air Force |url=https://www.canada.ca/en/department-national-defence/news/2023/11/canada-purchasing-up-to-16-p-8a-poseidon-multi-mission-aircraft-for-the-royal-canadian-air-force.html |access-date=2023-11-30 |website=www.canada.ca}}</ref>

==Operators==
;{{CAN}}
* [[Royal Canadian Air Force]]
** [[No. 404 Squadron RCAF|404 Long Range Patrol and Training Squadron]], [[CFB Greenwood]], [[Nova Scotia]]
*** 4 × CP-140M ''Aurora''
** [[No. 405 Squadron RCAF|405 Long Range Patrol Squadron]], [[CFB Greenwood]], [[Nova Scotia]]
*** 11 × CP-140M ''Aurora'' and 1 × CP-140 ''Aurora'' to be retained as a test aircraft until retirement in the near future.
** [[No. 415 Squadron RCAF|415 Long Range Patrol Force Development Squadron]], [[CFB Greenwood]], [[Nova Scotia]]
** [[No. 407 Squadron RCAF|407 Long Range Patrol Squadron]], [[CFB Comox]], [[British Columbia]]
*** 3 × CP-140M ''Aurora''

==Aircraft on display==

* CP-140102 [[National Air Force Museum of Canada]].<ref>{{cite web
|title=Aurora
|url= http://airforcemuseum.ca/eng/?page_id=4811 |website=National Air Force Museum of Canada |access-date=30 January 2025}}</ref>
* CP-140107 [[Comox Air Force Museum]].<ref>{{cite web | url=http://airforcemuseum.ca/eng/?page_id=4811 | title=Aurora – National Air Force Museum of Canada }}</ref>
* CP-140119<ref>{{cite web | url=http://www.gmam.ca/arcturus.html | title=Arcturus }}</ref> [[Greenwood Military Aviation Museum]] (This airframe is the sole CP-140A Arcturus on display).<ref>{{cite web | url=http://www.gmam.ca/arcturus.html | title=Arcturus }}</ref>

==Specifications (CP-140)==

{{Aircraft specs
|ref=Jane's All the World's Aircraft 1981-82<ref name=JAWA1981-82>{{cite book |title=Jane's All the World's Aircraft 1981-82 |editor1-last=Taylor |editor1-first=John W.R. |edition=72nd |year=1981 |publisher=Jane's Publishing Co. |location=London |isbn=978-0710607294 |pages=390–393}}</ref>
|prime units?=kts
<!--
        General characteristics
-->
|crew= Mission minimum 8, typically 12 to 15
|length ft=116
|length in=10
|length note=
|span ft=99
|span in=8
|span note=
|height ft=33
|height in=8.5
|height note=
|wing area sqft=1300
|wing area note=
|aspect ratio=7.5
|airfoil='''root:''' [[NACA airfoil|NACA 0014 (modified)]]; '''tip:''' [[NACA airfoil|NACA 0012 (modified)]]
|empty weight lb=
|empty weight note=
|gross weight lb=61362
|gross weight note={{citation needed|date=May 2020}}
|max takeoff weight lb=
|max takeoff weight note=
|fuel capacity={{cvt|7661|impgal|USgal l|0}} usable fuel in one fuselage tank and four wing integral tanks
|more general=
<!--
        Powerplant
-->
|eng1 number=4
|eng1 name=[[Allison T56-A-14-LFE]]
|eng1 type=[[turboprop]] engines
|eng1 kw=3661
|eng1 note=

|prop blade number=4
|prop name=[[Hamilton Standard]] 54H60
|prop dia m=4.11
|prop dia note=constant-speed fully-feathering reversible-pitch propellers
<!--
        Performance
-->
|max speed kts=375
|max speed note=below cruise ceiling
*'''Maximum transit speed:''' {{cvt|395|kn|mph km/h|0}} at optimum altitude
|cruise speed kts=
|cruise speed note=
|stall speed kts=
|stall speed note=
|never exceed speed kts=
|never exceed speed note=
|minimum control speed kts=
|minimum control speed note=
|range nmi=5000
|range note={{citation needed|date=May 2020}}
|combat range nmi=
|combat range note=
|ferry range nmi=
|ferry range note=
|endurance=8 hours 12 minutes on station at {{cvt|1000|nmi|mi km|0}} radius
|ceiling ft=35100
|ceiling note={{citation needed|date=May 2020}}
|g limits=<!-- aerobatic -->
|roll rate=<!-- aerobatic -->
|glide ratio=<!-- sailplanes -->
|climb rate ftmin=
|climb rate note=
|time to altitude=
|sink rate ftmin=<!-- sailplanes -->
|sink rate note=
|lift to drag=
|wing loading lb/sqft=
|wing loading note=
|disk loading lb/sqft=
|disk loading note=
|fuel consumption lb/mi=
|power/mass=
|thrust/weight=

|more performance=<br />
*'''FAR balanced field length:''' {{cvt|7900|ft|0}}
*'''Take-off distance to {{cvt|50|ft|0}}:''' {{cvt|6000|ft|0}}
*'''Landing distance from {{cvt|50|ft|0}}:''' {{cvt|3200|ft|0}} at {{cvt|114000|lb|0}} landing weight
<!--
        Armament
-->
|guns= 
|bombs=[[Mark 46 torpedo|Mk 46 Mod V]] torpedoes, [[Gravity bomb|conventional bombs]]
|rockets= air-to-surface rockets can be fitted after a minor retrofit.
|missiles= 
|hardpoints=8 in weapons bay; 10 under-wing from {{cvt|611|to|2450|lb|0}} capacity
|hardpoint capacity={{cvt|4800|lb|0}} total in weapons bay 
|hardpoint rockets=
|hardpoint missiles=
|hardpoint bombs=
|hardpoint other=signal chargers, [[Smoke grenade|smoke markers]], [[Flare (countermeasure)|illumination flares]]
|avionics=
:*Univac AN/AYK-502 nav/attack computer
:*Digital magnetic tape units and video recorders
:*AN/APS-116 search radar
:*OR-5004/AA (modified) FLIR
:*AN/ASN505 dual INS
:*AN/APN-510 Doppler
:*AN/ARN-511 Omega nav system
:*HF/UHF/VHF comms
:*Airways nav aids
:*AN/ASW-502 AFCS
:*AN/ASQ-502 MAD
:*KA-501A day/night camera with night illuminator
:*[[Sonobuoy]]s
:*Wescam MX-20 Electro-Optical/Infrared (EO/IR) suite
:*[[Electronic Support Measures]] (ESM)
:*Applanix DSS-439 Digital Mapping Camera (DSS)
:*hand-held digital camera
:*gyro-stabilized binoculars
:*3 [[AN/ARC-210]] V/UHF Radios
:*1 [[AN/ARC-234]] V/UHF SATCOM Radio.
}}

==See also==
{{Portal|Aviation|Canada}}
{{aircontent
|related =
* [[Lockheed L-188 Electra]]
* [[Lockheed P-3 Orion]]
|similar aircraft= 
* [[Avro Shackleton]]
* [[Breguet Atlantique]]
* [[Canadair CP-107 Argus]]
* [[Hawker-Siddeley Nimrod]]
* [[Ilyushin Il-38]]
* [[Tupolev Tu-95]]
|lists= 
* [[List of active Canadian military aircraft]]
* [[List of Lockheed aircraft]]
|see also=
}}

==References==
;Notes
{{Reflist}}
;Bibliography
{{Refbegin}}
* Donald, David. ''The Encyclopedia of World Aircraft''.  Etobicoke, Ontario: Prospero Books, 1997. {{ISBN|1-85605-375-X}}.
* Pickler, Ron and [[Larry Milberry|Milberry, Larry]]. ''Canadair: The First 50 Years''. Toronto: CANAV Books, 1995. {{ISBN|0-921022-07-7}}.
* Winchester, Jim, ed. "Lockheed CP-140 Aurora." ''Modern Military Aircraft (Aviation Factfile)''. Rochester, Kent, UK: Grange Books plc, 2004. {{ISBN|1-84013-640-5}}.
{{Refend}}

==External links==
{{Commons category|Lockheed CP-140 Aurora/CP-140A Arcturus}}
* [https://web.archive.org/web/20101205104909/http://www.airforce.forces.gc.ca/v2/equip/cp140/index-eng.asp Canada's Air Force: CP-140 Aurora]
* [https://web.archive.org/web/20101205105128/http://www.airforce.forces.gc.ca/v2/equip/cp140a/index-eng.asp Canada's Air Force: CP-140A Arcturus]

{{Lockheed}}
{{CF aircraft}}
{{Authority control}}

{{DEFAULTSORT:Lockheed Cp-140 Aurora}}
[[Category:Lockheed aircraft|CP-140 Aurora]]
[[Category:1970s United States patrol aircraft]]
[[Category:Canadian patrol aircraft]]
[[Category:Four-engined tractor aircraft]]
[[Category:Low-wing aircraft]]
[[Category:Four-engined turboprop aircraft]]
[[Category:Signals intelligence]]
[[Category:Lockheed P-3 Orion|CP-140]]
[[Category:Aircraft first flown in 1979]]
[[Category:Aircraft with retractable tricycle landing gear]]

[[it:Lockheed P-3 Orion#Utilizzatori]]