Editing Bell AH-1 Cobra (section)

===Single-engine===
;Bell 209: Original AH-1G prototype with retractable skid landing gear. This model number is also used by the FAA for the civilian registration of former U.S. Army AH-1s used in firefighting service.

;AH-1G HueyCobra: Initial 1966 production model gunship for the US Army, with one {{convert|1400|shp|kW|abbr=on|lk=on}} Avco Lycoming T53-13 turboshaft.
;JAH-1G HueyCobra: One helicopter for armament testing including Hellfire missiles and multi-barrel cannon.<ref name=Encyl_aircr>Donald 1997, p. 112.</ref>
;TH-1G HueyCobra: Two-seat dual-control trainer.<ref name=Encyl_aircr/>
;Z.14 HueyCobra: The Spanish Navy purchased eight new-build AH-1Gs, designating the type the "Z-14". These were equipped with the M35 20&nbsp;mm cannon system, and were used to support coastal patrol boats. Four of these were lost in accidents. The remaining helicopters were retired in 1985 with three sent back to the US, and one kept in storage in Spain.<ref name=Encyl_aircr/><ref>Goebel, Greg. {{usurped|1=[https://web.archive.org/web/20091130110859/http://www.vectorsite.net/avcobra_2.html#m6 International Cobra Sales]}}. Vectorsite.net, 1 December 2008.</ref>
;YAH-1Q: Eight AH-1Gs with XM26 Telescopic Sight Unit (TSU) and two M56 TOW 4-pack launchers.<ref name=Huey_Cobra/>
;AH-1Q HueyCobra: Equipped with the M65 [[BGM-71 TOW|TOW]]/Cobra missile subsystem, M65 Telescopic Sight Unit (TSU), and M73 Reflex sight. All future versions will be equipped with the TSU and be equipped to fire the TOW missile subsystem.
;YAH-1R: AH-1G powered by a T53-L-703 engine without TOW system.<ref name=Huey_Cobra/>

;YAH-1S: AH-1Q upgrade and TOW system.<ref name=Huey_Cobra/>
;AH-1S: The baseline AH-1S is an AH-1Q upgraded with a {{convert|1800|shp|kW|abbr=on}} T53-L-703 turboshaft engine. The AH-1S is also referred to as the "Improved AH-1S", "AH-1S Modified", or "AH-1S(MOD)" prior to 1988. (Prior to 1988, all upgraded aircraft were referred to as variants of the AH-1S.)<ref name=Huey_Cobra/>
;{{anchor|QAH-1S}}QAH-1S: A target drone conversion of the AH-1S by Bell-Bristol Aerospace under a joint US and [[Canada]] development program started in 1994.  Honeywell further modified the QAH-1S into the ''Hokum-X'' by installing systems and hardware to allow it to simulate the [[Russia]]n [[Kamov Ka-50]] attack helicopter.  Three Hokum-Xs were completed from 1998 to 2001.<ref>"Bristol Aerospace Hokum-X". ''Jane's Unmanned Aerial Vehicles and Targets'', Jane's Information Group, 2006. [http://search.janes.com/Search/documentView.do?docId=/content1/janesdata/binder/juav/juav0993.htm@current&pageSelected=allJanes&backPath=http://search.janes.com/Search&Prod_Name=JUAV& (subscription article dated 14 December 2006)]{{dead link|date=March 2018 |bot=InternetArchiveBot |fix-attempted=yes}}</ref><ref>"Honeywell QAH-1S". ''Jane's Unmanned Aerial Vehicles and Targets'', Jane's Information Group, 2006. [https://archive.today/20120713150433/http://search.janes.com/Search/documentView.do?docId=/content1/janesdata/binder/juav/juav9143.htm@current&pageSelected=allJanes&backPath=http://search.janes.com/Search&Prod_Name=JUAV&keyword= (subscription article dated 3 February 2006)]</ref>
;AH-1P: 100 production aircraft with composite rotors, flat plate glass cockpit, and improved cockpit layout for nap-of-earth (NOE) flight. The AH-1P is also referred to as the "Production AH-1S", or "AH-1S(PROD)" prior to 1988. These improvements are considered Step 1 of the AH-1S upgrade program.<ref name=Huey_Cobra/>
;AH-1E: 98 production aircraft with the Enhanced Cobra Armament System (ECAS) featuring the M97A1 armament subsystem with a three-barreled M197 20&nbsp;mm cannon. The AH-1E is also referred to as the "Upgunned AH-1S", or "AH-1S(ECAS)" prior to 1988. These improvements are considered Step 2 of the AH-1S upgrade program.<ref name=Huey_Cobra/> AH-1E aircraft included the M147 Rocket Management Subsystem (RMS) to fire {{convert|2.75|in|mm|adj=on}} rockets.<ref name= "McGowen 159">McGowen 2005, p. 159.</ref>
;AH-1F: 143 production aircraft and 387 converted AH-1G Cobras. The AH-1F incorporates all Step 1 and 2 upgrades to the AH-1S.  It also featured Step 3 upgrades: a head-up display, a laser rangefinder, an infrared jammer mounted above the engine exhaust, and an infrared suppressing engine exhaust system, and the M143 Air Data Subsystem (ADS). The AH-1F is also referred to as the "Modernized AH-1S", "AH-1S Modernized Cobra", or "AH-1S(MC)" prior to 1988.<ref>Bishop 2006, p. 11.</ref>
;Model 249: Experimental demonstrator version fitted with the four-blade rotor system from [[Bell 412]], an uprated engine, and experimental equipment, including Hellfire missiles.<ref>Verier 1990, pp. 72–76.</ref>
;[[Bell 309 KingCobra]]: Experimental all-weather version based on the AH-1G single-engine and AH-1J twin-engine designs.<ref>Verier 1990, p. 57.</ref> Two Bell 309s were produced; the first was powered by a [[Pratt & Whitney Canada PT6T|PW&C T400-CP-400]] Twin-Pac engine set and the second was powered by a [[Lycoming T55|Lycoming T55-L-7C]] engine.<ref>Richardson 1987, pp. 8–9.</ref>
; AH-1FB
: AH-1F modernized by [[Turkish Aerospace Industries]] for the [[Royal Bahraini Air Force]].<ref>{{Cite web|url=https://www.timesaerospace.aero/news/events/bias-upgraded-cobras-bare-their-teeth|title=BIAS: Upgraded Cobras bare their teeth &#124; Times Aerospace|website=www.timesaerospace.aero}}</ref>