Difference between revisions of "AIM-9L Sidewinder"

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{{About
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| about = American air-to-air missile '''{{PAGENAME}}'''
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| usage = other versions
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| link = AIM-9 Sidewinder (Family)
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}}
 
== Description ==
 
== Description ==
 
<!-- ''Write an introduction to the article in 2-3 small paragraphs. Briefly tell us about the history of the development and combat using the weaponry and also about its features. Compile a list of air, ground, or naval vehicles that feature this weapon system in the game.'' -->
 
<!-- ''Write an introduction to the article in 2-3 small paragraphs. Briefly tell us about the history of the development and combat using the weaponry and also about its features. Compile a list of air, ground, or naval vehicles that feature this weapon system in the game.'' -->
 
[[File:WeaponImage AIM-9L Sidewinder.png|thumb|left|420px|The AIM-9L Sidewinder missile (scale is approximate)]]
 
[[File:WeaponImage AIM-9L Sidewinder.png|thumb|left|420px|The AIM-9L Sidewinder missile (scale is approximate)]]
 
{{Break}}
 
{{Break}}
The '''AIM-9L''' is an American [[Air-to-air_missiles#Infrared_homing_.28heat-seeking.29_missiles|infrared homing air-to-air missile]], it was introduced in [[Update 1.85 "Supersonic"]].
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The '''{{PAGENAME}}''' is an American [[Air-to-air_missiles#Infrared_homing_.28heat-seeking.29_missiles|infrared homing air-to-air missile]], it was introduced in [[Update 1.85 "Supersonic"]].
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The AIM-9L entered service in 1977 as the first Sidewinder with all-aspect capabilities. It was first used by a pair of F-14 Tomcats in 1981, successfully destroying two Libyan Su-22s. Its first large scale usage was by the United Kingdom during the Falklands War, with an 80% launch-to-kill ratio.  
  
 
=== Vehicles equipped with this weapon ===
 
=== Vehicles equipped with this weapon ===
 
<!-- ''List out vehicles that are equipped with the weapon.'' -->
 
<!-- ''List out vehicles that are equipped with the weapon.'' -->
  
* {{Specs-Link|ah_1z}}&nbsp;(Modification)
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{{Navigation-Start|Vehicles equipped with this weapon}}
* {{Specs-Link|ah_64a}}
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{{Navigation-First-Line|'''Jet fighters'''}}
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{{Navigation-Line|F-104}}{{Specs-Link|f-104s_asa}}
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{{Navigation-Line|F-4 Phantom II}}{{Specs-Link|f-4e_kurnass_2000}}{{-}}{{Specs-Link|f-4ej_kai}}
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{{Navigation-Line|F-16}}{{Specs-Link|f_16a_block_10}}{{-}}{{Specs-Link|f_16a_block_15_adf}}{{-}}{{Specs-Link|f_16a_block_15_adf_italy}}{{-}}{{Specs-Link|f_16a_block_20_mlu}}{{-}}{{Specs-Link|f_16aj}}{{-}}{{Specs-Link|f_16a_block_10_iaf}}
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{{Navigation-Line|Tornado}}{{Specs-Link|tornado_f3}}
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{{Navigation-Line|'''Strike aircraft'''}}{{Specs-Link|a_6e_tram}}{{-}}{{Specs-Link|a_7k}}
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{{Navigation-Line|A-10}}{{Specs-Link|a_10a_early}}{{-}}{{Specs-Link|a_10a_late}}
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{{Navigation-Line|Harrier}}{{Specs-Link|harrier_gr7}}{{-}}{{Specs-Link|harrier_frs1}}
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{{Navigation-Line|Tornado}}{{Specs-Link|tornado_gr1}}{{-}}{{Specs-Link|tornado_ids_de_mfg}}{{-}}{{Specs-Link|tornado_ids_de_assta1}}{{-}}{{Specs-Link|tornado_ids_it_mod95}}
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{{Navigation-Line|'''Attack helicopters'''}}{{Specs-Link|ah_1z}}
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{{Navigation-Line|AH-64}}{{Specs-Link|ah_64a}}{{-}}{{Specs-Link|ah_64a_greece_usa}}
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{{Navigation-End}}
  
 
== General info ==
 
== General info ==
<!--Tell us about the tactical and technical characteristics of the missile.-->
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<!-- ''Tell us about the tactical and technical characteristics of the missile.'' -->
; In-game stats
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The AIM-9L variant is the first Sidewinder since the AIM-9B to be jointly used by the USAF and the USN, and was jointly developed by the two branches as well. It is directly based on the USN AIM-9H, but features improvements utilized in the USAF AIM-9J, including a new radar-slavable uncaged seeker head. It features an intermediary payload between the two previous branches of Sidewinder, and an intermediary weight.
* Mass: 84 kg
 
* Guidance: IR
 
* Aspects: All-Aspects
 
* Weapon Lock range in rear-aspect: 6.50 km
 
* Weapon Lock range in all-aspect: 3.00 km
 
* Launch range: 18.00 km
 
* Maximum speed: 2.5 M
 
* Maximum overload: 30 G
 
* Explosive type: HBX
 
* Explosive mass: 3.54 kg
 
* TNT equivalent: 5.66 kg
 
  
; Other stats
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{| class="wikitable" style="text-align:center"
Length: 2.85m<br>
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! colspan="2" | Missile characteristics
Fin-span: .63m<br>
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|-
Propulsion: Hercules/Bermite MK36<br>
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| '''Mass''' || 84 kg
Guidance system: WGU-4/B, with better IRCCM, and all-aspect lock on
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|-
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| '''Guidance''' || IR
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|-
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| '''Aspect''' || All-Aspects
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|-
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| '''Lock range in rear-aspect''' || 11 km
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|-
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| '''Lock range in all-aspect''' || 3 km
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|-
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| '''Launch range''' || 18 km
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|-
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| '''Maximum speed''' || 2.5 M
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|-
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| '''Maximum overload''' || 30 G
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|-
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| '''Missile guidance time''' || 60 secs
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|-
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| '''Explosive mass''' || 4.06 kg TNTeq
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|-
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|}
  
 
=== Effective damage ===
 
=== Effective damage ===
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=== Comparison with analogues ===
 
=== Comparison with analogues ===
''Give a comparative description of missiles that have firepower equal to this weapon.''
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<!-- ''Give a comparative description of missiles that have firepower equal to this weapon.'' -->
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Compared to every other Sidewinder in-game, it has a high maximum overload of 30 G, a motor burn time identical to the naval Sidewinders, a slightly longer rear-aspect lock range, and is the only Sidewinder to feature all-aspect IR lock, although front-aspect locks are very vulnerable to flares.
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{| class="wikitable"
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! Missile Characteristics !! AIM-9L !! AIM-9H !! AIM-9J
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|-
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| '''Mass''' || 84 kg || 88 kg || 76 kg
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|-
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| '''Guidance''' || IR || IR || IR
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|-
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| '''Aspect''' || All-Aspect || Rear || Rear
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|-
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| '''Seeker Head''' || Uncaged (radar slavable) || Uncaged (radar slavable) || Uncaged (radar slavable)
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|-
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| '''Lock range (rear-aspect)''' || 11 km || 5.5 km || 5.5 km
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|-
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| '''Lock range (all-aspect)''' || 3 km || N/A || N/A
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|-
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| '''Launch range''' || 18 km || 18 km || 18 km
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|-
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| '''Maximum speed''' || 2.5 M || 2.5 M || 2.5 M
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|-
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| '''Maximum overload''' || 30 G || 18 G || 20 G
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|-
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| '''Missile guidance time''' || 60 s || 60 s || 40 s
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|-
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| '''Explosive Mass''' || 4.06 kg TNTeq || 3.53 kg TNTeq || 7.62 kg TNTeq
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|-
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|}
  
 
== Usage in battles ==
 
== Usage in battles ==
''Describe situations when you would utilise this missile in-game (vehicle, pillbox, base, etc)''
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<!-- ''Describe situations when you would utilise this missile in-game (vehicle, pillbox, base, etc)'' -->
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The AIM-9L is best used in rear-aspect within a 3 km range from the target. It is best used against targets who are unaware, do not have flares, or have low energy.
  
 
=== Pros and cons ===
 
=== Pros and cons ===
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'''Pros:'''
 
'''Pros:'''
  
* Lock on Fire-And-Forget missle
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* Can pull hard with an overload limit of 30 G
* One of the best Air-To-Air Missles(AAM) in the game
 
* 30G Max overload
 
* 18 km maximum range if the hostile plane were to go in a straight line
 
 
* Up to 5 km in which the missile can turn (5.2 s of burn time)
 
* Up to 5 km in which the missile can turn (5.2 s of burn time)
* 6.5 km rear-aspect lock-on
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* Has longer range than the AIM-9D/G
* 3 km all-aspect lock on
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* Occasionally completely ignores flares
  
 
'''Cons:'''
 
'''Cons:'''
  
* Flares can distract the missile
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* Still fairly vulnerable to flares, especially when launched head-on
* Friendly or Enemy missile could distract the missile
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* Low track rate means it can be defeated by moderate manoeuvres
* Very high speed loss due to weak engine and high drag coefficient
 
* IRCM modules acts as a shield against the missile
 
  
 
== History ==
 
== History ==
''Examine the history of the creation and combat usage of the weapon in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Weapon-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>.''
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<!-- ''Examine the history of the creation and combat usage of the weapon in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Weapon-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>.'' -->
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===Development===
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The experience with the AIM-9 Sidewinders in the Vietnam War and Yom Kippur War showed that there were still many improvements that could be made to the Sidewinder's performance. Low-altitude performance was poor due to environmental interferences on the Sidewinder's IR seeker, and the IR seeker was only able to attack from the rear to lock onto the engine exhaust of an enemy aircraft. Improving the Sidewinder's seeker capabilities to solve these issues became the key improvement for the next Sidewinder generation.<ref name="Ausairpower_Sidewinder">Kopp 2014</ref>
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[[File:Cutaway_of_the_AIM-9L.png|x250px|right|thumb|none|An AIM-9L missile on display. The canard fin shape is the most distinctive external feature of the AIM-9L.]]
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The United States Navy had their own development team within China Lake that set to work improving their Sidewinders, which has so far culminated from the [[AIM-9B Sidewinder|AIM-9B]] to the [[AIM-9D Sidewinder|AIM-9D]], [[AIM-9G Sidewinder|AIM-9G]] and their latest [[AIM-9H Sidewinder|AIM-9H]]. The US Air Force had their own development of the Sidewinder splitting off from the US Navy's AIM-9B to the [[AIM-9E Sidewinder|AIM-9E]] and [[AIM-9J Sidewinder|AIM-9J]]. The US Navy and US Air Force's Sidewinder models were not compatible between the two service branches due to differences in seeker cooling methods. The United States Air Force desired to continue their own missile program named "CLAW", which called for the use of smaller, cheaper missiles so more could be fired at a time. William Perry, the Defense Department's deputy director of research and engineering, disapproved of this path and told the US Air Force to work with the US Navy to work together on a common IR missile for both service branches. The US Air Force, therefore, cooperated with the US Navy's China Lake team to share specifications and technology to produce the next missile. The US Navy would designate this program as the ''AIM-9H Product Improvement Package'' (PIP).<ref name="Westrum_Sidewinder9L">Westrum 2013, 191-193</ref>
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The package prioritized improving the seeker with an indium antimonide seeker, which could detect the longer-wavelength infrared radiation given out of warm surfaces of aircraft parts, allowing the missile to obtain all-aspect capability (ALASCA) in acquiring targets.<ref name="Westrum_Sidewinder9L" /> Other improvements with the AIM-9H PIP were the long-span pointed double-delta canards, a new MK 36 solid-fuel rocket motor, WDU-17/B warhead featuring double-layer continuous-rod scheme, and a DSU-15/B Active Optical Target Detector (AOTD) laser proximity fuse system <ref name="AirVector_Sidewinder">Goebel 2021</ref><ref name="Designation_Sidewinder">Parsch 2008</ref> The cooling system was improved to a TMU/72/B argon-gas cooling system that was contained within the missile's seeker, which allowed for use on both USAF and USN missile launchers.<ref name="Ausairpower_Sidewinder" /> The one feature that complicated the US Navy and US Air Force cooperation with the missile was the reticle seeker, with the US Navy desiring an amplitude-modulated (AM) seeker while the US Air Force desired a frequency-modulated (FM) seeker. An AM-FM system was developed by Raytheon,<ref name="Westrum_Sidewinder9L" />, which allowed the Sidewinder to use both traditional AM reticle that is effective in cloudy backgrounds with the benefit of the FM reticle reducing seeker error signal inputs from the target's increasing size as the seeker gets closer.<ref name="Ausairpower_Sidewinder" /><ref name="Westrum_AMSeeker">Westrum 2013, 137</ref>
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[[File:Breakout of the AIM-9L.png|x200px|left|none|thumb|An exploded diagram of the AIM-9L and its components.]]
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Another improvement Raytheon introduced in the AIM-9H PIP was a rate bias that caused the missile to aim slightly ahead of an aircraft's hot afterburner. Issues arose when the missiles' rate bias adjusts too far ahead and missed the aircraft from the front. Consultation with General Dynamics revealed similar issues had arose during the development of the [[AIM-92 Stinger|FIM-92 Stinger]] missile, and the proper adjustments were made to solve the issue.<ref name="Westrum_Sidewinder9L" /> Sometime prior to 1975, the AIM-9H PIP would be designated as the '''AIM-9L'''. By 1975, the AIM-9L was tested in a joint navy-air force evaluation. Satisfied with the results, the AIM-9L missile was put into production in 1976 with both Raytheon and Ford Aerospace for a missile that was now jointly serving the United States Air Force and Navy.<ref name="Westrum_9LAcceptance">Westrum 2013, 196</ref>
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Foreign users were also sought out for the AIM-9L. In one case, the AIM-9L was contested against the German company Bodensee Geratechnik (BGT), which had developed an ALASCA seeker for a proposed Viper missile. To resolve this and bring BGT to help produce AIM-9Ls to European allies, the US Navy and Raytheon waived license and R&D fees for the AIM-9L, causing the end of the Viper missile development and provided AIM-9Ls to Great Britain, Norway, and Germany. Japan were also given the license to produce AIM-9Ls, which was performed by Mitsubishi. Between Raytheon, Ford, BGT, and Mitsubishi, more than 16,000 AIM-9L Sidewinders have been built since their production started.<ref name="Designation_Sidewinder" />
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===Combat===
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The AIM-9L would see action in separate theaters by different users in the 1980s.
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[[File:F-14A_VF-143_with_Sidewinder_and_Sparrow_missiles.jpg|left|x250px|thumb|none|A [[F-14A Early|F-14A]] equipped with a complement of AIM-9L Sidewinders and AIM-7 Sparrows.]]
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On 19 August 1981, two US Navy's [[F-14A Early|F-14A Tomcats]] from VF-41 were engaged by two Libyan [[Su-22M3|Su-22]] in an event that would be known as the Gulf of Sidra incident.<ref name="GuardiaF14Variant">Guardia 2019, 20</ref><ref name="Westrum_F14Combat">Westrum 2013, 1-2</ref> As the Su-22s closed in, the lead plane fired a [[R-3S|AA-2 "Atoll]] missile at the F-14s, but missed.<ref name="GuardiaSidra">Guardia 2019, 30-35</ref> After evading the missile, the F-14s manoeuvred behind the Su-22s and, equipped with AIM-9L Sidewinders, each destroyed a Su-22 with the Sidewinders. The combat was concluded within 45 seconds.<ref name="Westrum_F14Combat" />
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In 1982, the British would extensively use AIM-9L during the Falkland War on Sea Harriers. Procuring and using the AIM-9L were difficult as when the British carrier task force set sail to the Falklands in 05 April 1982, only 19 AIM-9L were in inventory. Moreover, the new canards on the AIM-9L did not fit the Sea Harrier's launch rails below the wings, though this was solved by filing down the launch rails for the AIM-9L to fit.<ref name="White_AIM9L">White 2020</ref> Sea Harriers equipped with AIM-9L fought in engagements against Argentine [[A-4B|A-4 Skyhawks]], Super Etendards, and [[Mirage IIIE|Mirage III]]s.<ref name="YoungSidewinder">Young 2021</ref> By the end of the conflict, a total of 27 AIM-9Ls were launched which scored 24 hits on Argentine aircraft, which translates to an 88% success rate for the AIM-9L missile.<ref name="Herbert_1982wars">Herbert 2007</ref>
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Another conflict in 1982 that saw AIM-9Ls being used was the Israeli-Lebanon war. The Israelis launched Operation Mole Cricket 19 on 09 June 1982 to eliminate a Syrian air defense network set up in Lebanon's Bekaa Valley. The success of the Israeli operation forced the Syrians to commit their [[MiG-21bis|MiG-21s]] and [[MiG-23MLD|MiG-23s]] to prevent the Israeli Air Force (IAF) from achieving aerial superiority. The IAF, consisting of F-15 and F-16 fighter jets, retained control of the sky as Airborne Warning And Control System (AWACS) aircraft informed Israeli pilots of the presence of Syrian jets, which were then intercepted and destroyed at visual range with AIM-9Ls, [[Shafrir]], or Python missiles. The AIM-9L reportedly earned a kill rate of 85% during this conflict and contributed to the Israeli claim of destroying more than 80 Syrian aircraft, which only had [[R-13M|K-13 missiles]] to fight back against the IAF aircraft.<ref name="YoungSidewinder" /><ref name="Herbert_1982wars" />
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===Future Sidewinder variants===
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[[File:AH-1W_VX-5_launching_AIM-9L_1987.jpg|right|thumb|none|An AH-1W SuperCobra fires a AIM-9L from a wing-mounted missile launcher at China Lake.]]
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Though AIM-9L was a successful Sidewinder variant, there were still more features and improvements to be introduced into the model. Infrared Counter-Countermeasure (IRCCM) capability, a smaller smoke signature from the motor, and an improved WGU-4/B guidance system were implemented into the AIM-9L PIP that became the ''AIM-9M'', which saw use during the Gulf War.<ref name="Designation_Sidewinder" /> The next significant AIM-9 variant to be developed was the ''AIM-9R'', which attempted to evolve the AIM-9 design with the use of a charge-coupled device (CCD) detector, allowing the missile to use an imaging system to track the target. However, cost overruns, staff mismanagement, use of expensive and complicated components, and the fact the imaging system could not work in the night caused the backers of the program to lose faith and the missile was cancelled by the US Navy in December 1991.<ref name="Westrum_9R">Westrum 2013, 198-203</ref>
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The AIM-9L and future variants introduced many radical features that the United States deemed too sensitive for all allies, and export variants were produced that lacked some of the newer features. These export variants were labeled as ''AIM-9N'', ''[[AIM-9P Sidewinder|AIM-9P]]'', and ''AIM-9S''.<ref name="Designation_Sidewinder" />
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[[File:AIM-9X_F-15C_2002.jpg|x200px|left|thumb|none|An AIM-9X Sidewinder on an F-15C.]]
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The most recent Sidewinder variant to see use is the ''AIM-9X'', which uses the Mk 36 motor and WDU-17/B warhead from the AIM-9M, but the airframe had been redesigned with smaller fins and canards for lower drag and better flight performance. Rollerons have been removed from the Sidewinder's design as the flight control system was sophisticated enough to no longer need them. The WPU-17/B propulsion section uses a jet-vane steering system to steer the Sidewinder with thrust-vectoring. The result was a more compact missile that could fit within a fighter's internal bay, such as the F-22 and F-35.<ref name="Designation_Sidewinder" /> The biggest improvement of the AIM-9X over the predecessors was the guidance, using a seeker that was developed for the AIM-132 {{Annotation|ASRAAM|Advanced Short-Range Anti-Air Missile}} with an imaging infrared array, cooled by a Stirling-cycle cryocooler.<ref name="AirVector_Sidewinder" /> The AIM-9X also introduced an "Off-Boresight" capability, allowing the missile to be used with the Joint Helmet-Mounted Cueing System (JHMCS) to acquire target with the pilot's helmet.<ref name="AirVector_Sidewinder" /><ref name="Designation_Sidewinder" /> Continually seeing development as late as 2019,<ref name="Drive_AIM9X">Rogoway et al. 2019</ref> the AIM-9X looks to be the main Sidewinder model for the 21st century aerospace.
  
 
== Media ==
 
== Media ==
 
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
 
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
[[File:AIM-9L.png|thumb|none|none|A AIM-9L Sidwinder hangs off a F-14 Tomcat.]]
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[[File:AIM-9L.png|thumb|none|none|An AIM-9L Sidwinder hangs off a F-14 Tomcat.]]
  
 
;Videos
 
;Videos
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* ''references to approximate analogues by other nations and research trees.'' -->
 
* ''references to approximate analogues by other nations and research trees.'' -->
  
* [[AIM-9B]]
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;Related development
* [[AIM-9E]]
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* [[AIM-9 Sidewinder (Family)]]
  
 
== External links ==
 
== External links ==
''Paste links to sources and external resources, such as:''
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<!-- ''Paste links to sources and external resources, such as:''
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* ''topic on the official game forum;''
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* ''other literature.'' -->
  
* ''topic on the official game forum;''
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=== References ===
* ''encyclopedia page on the weapon;''
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* ''other literature.''
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;Citations
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<references />
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;Bibliography
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* Goebel, Greg. 2021. "The Falcon & Sidewinder Air-To-Air Missiles." Air Vectors. Last modified July 01, 2021. [https://www.airvectors.net/avusaam_1.html#m6 Website] ([https://web.archive.org/web/20220107173258/https://www.airvectors.net/avusaam_1.html Archive]).
 +
* Guardia, Mike. 2019. ''Tomcat Fury: A Combat History of the F-14''. Maple Grove, MN: Magnum Books.
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* Herbert, Adam J. 2007. "The Wars of Eighty-Two". Air Force Magazine. Last modified April 01, 2007. [https://www.airforcemag.com/article/0407eightytwo/ Website] ([https://web.archive.org/web/20220107183859/https://www.airforcemag.com/article/0407eightytwo/ Archive]).
 +
* Kopp, Carlo. 2014. "The Sidewinder Story: The Evolution of the AIM-9 Missile." Air Power Australia. Last modified January 27, 2014. [http://www.ausairpower.net/TE-Sidewinder-94.html Website] ([https://web.archive.org/web/20220107173023/http://www.ausairpower.net/TE-Sidewinder-94.html Archive])
 +
* Parsch, Andreas. 2008. "AIM-9." Directory of U.S. Military Rockets and Missiles. Last modified July 09, 2008. [http://www.designation-systems.info/dusrm/m-9.html Website] ([https://web.archive.org/web/20220107172850/http://www.designation-systems.info/dusrm/m-9.html Archive])
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* Rogoway, Tyler and Josephy Trevithick. 2019. "The AIM-9X Sidewinder May Finally Evolve Into A Completely New And Longer-Range Missile". The Drive. Last modified September 03, 2019. [https://www.thedrive.com/the-war-zone/29158/the-aim-9x-sidewinder-may-finally-evolve-into-a-completely-new-and-longer-range-missile Website] ([https://web.archive.org/web/20211123183940/https://www.thedrive.com/the-war-zone/29158/the-aim-9x-sidewinder-may-finally-evolve-into-a-completely-new-and-longer-range-missile Archive]).
 +
* Westrum, Ron. 2013. ''Sidewinder; Creative Missile Development at China Lake''. Annapolis, MD: Naval Institute Press.
 +
* White, Roland. 2020. "Her Majesty's Death Ray: How The AIM-9L Sidewinder Vanquished The Argentine Air Force." The Drive. Last modified October 07, 2020. [https://www.thedrive.com/the-war-zone/36949/her-majestys-death-ray-how-the-aim-9l-sidewinder-vanquished-argentine-air-force Website]. ([https://web.archive.org/web/20220107182645/https://www.thedrive.com/the-war-zone/36949/her-majestys-death-ray-how-the-aim-9l-sidewinder-vanquished-argentine-air-force Archive])
 +
* Young, James. 2021. "Freedom's "Flying Snake": The AIM-9 Sidewinder in the Cold War". Marine Corps University. Accessed January 07, 2022. [https://www.usmcu.edu/Outreach/Marine-Corps-University-Press/Expeditions-with-MCUP-digital-journal/Freedoms-Flying-Snake/ Website] ([https://web.archive.org/web/20220107192115/https://www.usmcu.edu/Outreach/Marine-Corps-University-Press/Expeditions-with-MCUP-digital-journal/Freedoms-Flying-Snake/ Archive]).
  
 
{{Missiles}}
 
{{Missiles}}
  
 
[[Category:Suspended armaments]]
 
[[Category:Suspended armaments]]

Revision as of 17:28, 15 April 2023

This page is about the American air-to-air missile AIM-9L Sidewinder. For other versions, see AIM-9 Sidewinder (Family).

Description

The AIM-9L Sidewinder missile (scale is approximate)


The AIM-9L Sidewinder is an American infrared homing air-to-air missile, it was introduced in Update 1.85 "Supersonic".

The AIM-9L entered service in 1977 as the first Sidewinder with all-aspect capabilities. It was first used by a pair of F-14 Tomcats in 1981, successfully destroying two Libyan Su-22s. Its first large scale usage was by the United Kingdom during the Falklands War, with an 80% launch-to-kill ratio.

Vehicles equipped with this weapon

Vehicles equipped with this weapon
Jet fighters 
F-104  F-104S.ASA
F-4 Phantom II  Kurnass 2000 · F-4EJ Kai Phantom II
F-16  F-16A · F-16A ADF · ▄F-16A ADF · ␗F-16A MLU · F-16AJ · Netz
Tornado  Tornado F.3
Strike aircraft  A-6E TRAM · A-7K
A-10  A-10A · A-10A Late
Harrier  Harrier GR.7 · Sea Harrier FRS.1
Tornado  Tornado GR.1 · ◄Tornado IDS MFG · ◄Tornado IDS ASSTA1 · ▄Tornado IDS (1995)
Attack helicopters  AH-1Z
AH-64  AH-64A · AH-64A (GR)

General info

The AIM-9L variant is the first Sidewinder since the AIM-9B to be jointly used by the USAF and the USN, and was jointly developed by the two branches as well. It is directly based on the USN AIM-9H, but features improvements utilized in the USAF AIM-9J, including a new radar-slavable uncaged seeker head. It features an intermediary payload between the two previous branches of Sidewinder, and an intermediary weight.

Missile characteristics
Mass 84 kg
Guidance IR
Aspect All-Aspects
Lock range in rear-aspect 11 km
Lock range in all-aspect 3 km
Launch range 18 km
Maximum speed 2.5 M
Maximum overload 30 G
Missile guidance time 60 secs
Explosive mass 4.06 kg TNTeq

Effective damage

Describe the type of damage produced by this type of missile (high explosive, splash damage, etc)

Comparison with analogues

Compared to every other Sidewinder in-game, it has a high maximum overload of 30 G, a motor burn time identical to the naval Sidewinders, a slightly longer rear-aspect lock range, and is the only Sidewinder to feature all-aspect IR lock, although front-aspect locks are very vulnerable to flares.

Missile Characteristics AIM-9L AIM-9H AIM-9J
Mass 84 kg 88 kg 76 kg
Guidance IR IR IR
Aspect All-Aspect Rear Rear
Seeker Head Uncaged (radar slavable) Uncaged (radar slavable) Uncaged (radar slavable)
Lock range (rear-aspect) 11 km 5.5 km 5.5 km
Lock range (all-aspect) 3 km N/A N/A
Launch range 18 km 18 km 18 km
Maximum speed 2.5 M 2.5 M 2.5 M
Maximum overload 30 G 18 G 20 G
Missile guidance time 60 s 60 s 40 s
Explosive Mass 4.06 kg TNTeq 3.53 kg TNTeq 7.62 kg TNTeq

Usage in battles

The AIM-9L is best used in rear-aspect within a 3 km range from the target. It is best used against targets who are unaware, do not have flares, or have low energy.

Pros and cons

Pros:

  • Can pull hard with an overload limit of 30 G
  • Up to 5 km in which the missile can turn (5.2 s of burn time)
  • Has longer range than the AIM-9D/G
  • Occasionally completely ignores flares

Cons:

  • Still fairly vulnerable to flares, especially when launched head-on
  • Low track rate means it can be defeated by moderate manoeuvres

History

Development

The experience with the AIM-9 Sidewinders in the Vietnam War and Yom Kippur War showed that there were still many improvements that could be made to the Sidewinder's performance. Low-altitude performance was poor due to environmental interferences on the Sidewinder's IR seeker, and the IR seeker was only able to attack from the rear to lock onto the engine exhaust of an enemy aircraft. Improving the Sidewinder's seeker capabilities to solve these issues became the key improvement for the next Sidewinder generation.[1]

An AIM-9L missile on display. The canard fin shape is the most distinctive external feature of the AIM-9L.

The United States Navy had their own development team within China Lake that set to work improving their Sidewinders, which has so far culminated from the AIM-9B to the AIM-9D, AIM-9G and their latest AIM-9H. The US Air Force had their own development of the Sidewinder splitting off from the US Navy's AIM-9B to the AIM-9E and AIM-9J. The US Navy and US Air Force's Sidewinder models were not compatible between the two service branches due to differences in seeker cooling methods. The United States Air Force desired to continue their own missile program named "CLAW", which called for the use of smaller, cheaper missiles so more could be fired at a time. William Perry, the Defense Department's deputy director of research and engineering, disapproved of this path and told the US Air Force to work with the US Navy to work together on a common IR missile for both service branches. The US Air Force, therefore, cooperated with the US Navy's China Lake team to share specifications and technology to produce the next missile. The US Navy would designate this program as the AIM-9H Product Improvement Package (PIP).[2]

The package prioritized improving the seeker with an indium antimonide seeker, which could detect the longer-wavelength infrared radiation given out of warm surfaces of aircraft parts, allowing the missile to obtain all-aspect capability (ALASCA) in acquiring targets.[2] Other improvements with the AIM-9H PIP were the long-span pointed double-delta canards, a new MK 36 solid-fuel rocket motor, WDU-17/B warhead featuring double-layer continuous-rod scheme, and a DSU-15/B Active Optical Target Detector (AOTD) laser proximity fuse system [3][4] The cooling system was improved to a TMU/72/B argon-gas cooling system that was contained within the missile's seeker, which allowed for use on both USAF and USN missile launchers.[1] The one feature that complicated the US Navy and US Air Force cooperation with the missile was the reticle seeker, with the US Navy desiring an amplitude-modulated (AM) seeker while the US Air Force desired a frequency-modulated (FM) seeker. An AM-FM system was developed by Raytheon,[2], which allowed the Sidewinder to use both traditional AM reticle that is effective in cloudy backgrounds with the benefit of the FM reticle reducing seeker error signal inputs from the target's increasing size as the seeker gets closer.[1][5]

An exploded diagram of the AIM-9L and its components.

Another improvement Raytheon introduced in the AIM-9H PIP was a rate bias that caused the missile to aim slightly ahead of an aircraft's hot afterburner. Issues arose when the missiles' rate bias adjusts too far ahead and missed the aircraft from the front. Consultation with General Dynamics revealed similar issues had arose during the development of the FIM-92 Stinger missile, and the proper adjustments were made to solve the issue.[2] Sometime prior to 1975, the AIM-9H PIP would be designated as the AIM-9L. By 1975, the AIM-9L was tested in a joint navy-air force evaluation. Satisfied with the results, the AIM-9L missile was put into production in 1976 with both Raytheon and Ford Aerospace for a missile that was now jointly serving the United States Air Force and Navy.[6]

Foreign users were also sought out for the AIM-9L. In one case, the AIM-9L was contested against the German company Bodensee Geratechnik (BGT), which had developed an ALASCA seeker for a proposed Viper missile. To resolve this and bring BGT to help produce AIM-9Ls to European allies, the US Navy and Raytheon waived license and R&D fees for the AIM-9L, causing the end of the Viper missile development and provided AIM-9Ls to Great Britain, Norway, and Germany. Japan were also given the license to produce AIM-9Ls, which was performed by Mitsubishi. Between Raytheon, Ford, BGT, and Mitsubishi, more than 16,000 AIM-9L Sidewinders have been built since their production started.[4]

Combat

The AIM-9L would see action in separate theaters by different users in the 1980s.

A F-14A equipped with a complement of AIM-9L Sidewinders and AIM-7 Sparrows.

On 19 August 1981, two US Navy's F-14A Tomcats from VF-41 were engaged by two Libyan Su-22 in an event that would be known as the Gulf of Sidra incident.[7][8] As the Su-22s closed in, the lead plane fired a AA-2 "Atoll missile at the F-14s, but missed.[9] After evading the missile, the F-14s manoeuvred behind the Su-22s and, equipped with AIM-9L Sidewinders, each destroyed a Su-22 with the Sidewinders. The combat was concluded within 45 seconds.[8]

In 1982, the British would extensively use AIM-9L during the Falkland War on Sea Harriers. Procuring and using the AIM-9L were difficult as when the British carrier task force set sail to the Falklands in 05 April 1982, only 19 AIM-9L were in inventory. Moreover, the new canards on the AIM-9L did not fit the Sea Harrier's launch rails below the wings, though this was solved by filing down the launch rails for the AIM-9L to fit.[10] Sea Harriers equipped with AIM-9L fought in engagements against Argentine A-4 Skyhawks, Super Etendards, and Mirage IIIs.[11] By the end of the conflict, a total of 27 AIM-9Ls were launched which scored 24 hits on Argentine aircraft, which translates to an 88% success rate for the AIM-9L missile.[12]

Another conflict in 1982 that saw AIM-9Ls being used was the Israeli-Lebanon war. The Israelis launched Operation Mole Cricket 19 on 09 June 1982 to eliminate a Syrian air defense network set up in Lebanon's Bekaa Valley. The success of the Israeli operation forced the Syrians to commit their MiG-21s and MiG-23s to prevent the Israeli Air Force (IAF) from achieving aerial superiority. The IAF, consisting of F-15 and F-16 fighter jets, retained control of the sky as Airborne Warning And Control System (AWACS) aircraft informed Israeli pilots of the presence of Syrian jets, which were then intercepted and destroyed at visual range with AIM-9Ls, Shafrir, or Python missiles. The AIM-9L reportedly earned a kill rate of 85% during this conflict and contributed to the Israeli claim of destroying more than 80 Syrian aircraft, which only had K-13 missiles to fight back against the IAF aircraft.[11][12]

Future Sidewinder variants

An AH-1W SuperCobra fires a AIM-9L from a wing-mounted missile launcher at China Lake.

Though AIM-9L was a successful Sidewinder variant, there were still more features and improvements to be introduced into the model. Infrared Counter-Countermeasure (IRCCM) capability, a smaller smoke signature from the motor, and an improved WGU-4/B guidance system were implemented into the AIM-9L PIP that became the AIM-9M, which saw use during the Gulf War.[4] The next significant AIM-9 variant to be developed was the AIM-9R, which attempted to evolve the AIM-9 design with the use of a charge-coupled device (CCD) detector, allowing the missile to use an imaging system to track the target. However, cost overruns, staff mismanagement, use of expensive and complicated components, and the fact the imaging system could not work in the night caused the backers of the program to lose faith and the missile was cancelled by the US Navy in December 1991.[13]

The AIM-9L and future variants introduced many radical features that the United States deemed too sensitive for all allies, and export variants were produced that lacked some of the newer features. These export variants were labeled as AIM-9N, AIM-9P, and AIM-9S.[4]

An AIM-9X Sidewinder on an F-15C.

The most recent Sidewinder variant to see use is the AIM-9X, which uses the Mk 36 motor and WDU-17/B warhead from the AIM-9M, but the airframe had been redesigned with smaller fins and canards for lower drag and better flight performance. Rollerons have been removed from the Sidewinder's design as the flight control system was sophisticated enough to no longer need them. The WPU-17/B propulsion section uses a jet-vane steering system to steer the Sidewinder with thrust-vectoring. The result was a more compact missile that could fit within a fighter's internal bay, such as the F-22 and F-35.[4] The biggest improvement of the AIM-9X over the predecessors was the guidance, using a seeker that was developed for the AIM-132 ASRAAM with an imaging infrared array, cooled by a Stirling-cycle cryocooler.[3] The AIM-9X also introduced an "Off-Boresight" capability, allowing the missile to be used with the Joint Helmet-Mounted Cueing System (JHMCS) to acquire target with the pilot's helmet.[3][4] Continually seeing development as late as 2019,[14] the AIM-9X looks to be the main Sidewinder model for the 21st century aerospace.

Media

An AIM-9L Sidwinder hangs off a F-14 Tomcat.
Videos

See also

Related development

External links

References

Citations
  1. 1.0 1.1 1.2 Kopp 2014
  2. 2.0 2.1 2.2 2.3 Westrum 2013, 191-193
  3. 3.0 3.1 3.2 Goebel 2021
  4. 4.0 4.1 4.2 4.3 4.4 4.5 Parsch 2008
  5. Westrum 2013, 137
  6. Westrum 2013, 196
  7. Guardia 2019, 20
  8. 8.0 8.1 Westrum 2013, 1-2
  9. Guardia 2019, 30-35
  10. White 2020
  11. 11.0 11.1 Young 2021
  12. 12.0 12.1 Herbert 2007
  13. Westrum 2013, 198-203
  14. Rogoway et al. 2019
Bibliography
  • Goebel, Greg. 2021. "The Falcon & Sidewinder Air-To-Air Missiles." Air Vectors. Last modified July 01, 2021. Website (Archive).
  • Guardia, Mike. 2019. Tomcat Fury: A Combat History of the F-14. Maple Grove, MN: Magnum Books.
  • Herbert, Adam J. 2007. "The Wars of Eighty-Two". Air Force Magazine. Last modified April 01, 2007. Website (Archive).
  • Kopp, Carlo. 2014. "The Sidewinder Story: The Evolution of the AIM-9 Missile." Air Power Australia. Last modified January 27, 2014. Website (Archive)
  • Parsch, Andreas. 2008. "AIM-9." Directory of U.S. Military Rockets and Missiles. Last modified July 09, 2008. Website (Archive)
  • Rogoway, Tyler and Josephy Trevithick. 2019. "The AIM-9X Sidewinder May Finally Evolve Into A Completely New And Longer-Range Missile". The Drive. Last modified September 03, 2019. Website (Archive).
  • Westrum, Ron. 2013. Sidewinder; Creative Missile Development at China Lake. Annapolis, MD: Naval Institute Press.
  • White, Roland. 2020. "Her Majesty's Death Ray: How The AIM-9L Sidewinder Vanquished The Argentine Air Force." The Drive. Last modified October 07, 2020. Website. (Archive)
  • Young, James. 2021. "Freedom's "Flying Snake": The AIM-9 Sidewinder in the Cold War". Marine Corps University. Accessed January 07, 2022. Website (Archive).


Missiles
USA 
AAM  AIM-54A Phoenix · AIM-54C Phoenix · ATAS (AIM-92)
Sparrow  AIM-7C · AIM-7D · AIM-7E · AIM-7E-2 · AIM-7F · AIM-7M
Sidewinder  AIM-9B · AIM-9C · AIM-9D · AIM-9E · AIM-9G · AIM-9H · AIM-9J · AIM-9L · AIM-9M · AIM-9P
AGM  AGM-22 · APKWS II (M151) · APKWS II (M282) · BGM-71D TOW-2
Bullpup  AGM-12B Bullpup · AGM-12C Bullpup
Hellfire  AGM-114B Hellfire · AGM-114K Hellfire II
Maverick  AGM-65A · AGM-65B · AGM-65D
ATGM  LOSAT/MGM-166A
TOW  BGM-71 · BGM-71A · BGM-71B · BGM-71C
SAM  FIM-92 Stinger · MIM-72 · MIM146
Naval SAM  RIM-24A
Germany 
AAM  AIM-9B FGW.2 Sidewinder · Flz Lwf 63/80
AGM  9M14M Malyutka · Flz Lwf LB 82 · HOT-1 · HOT-2 TOW · HOT-3 · PARS 3 LR
AShM  AS.34 Kormoran
ATGM  HOT-K3S
SAM  Roland
USSR 
AAM  9M39 Igla · R-3R · R-3S · R-13M1 · R-23R · R-23T · R-24R · R-24T · R-27ER(1) · R-27ET(1) · R-27R(1) · R-27T(1) · R-60 · R-60M · R-60MK · R-73(E)
AGM  9K127 Vikhr · 9M17M Falanga · 9M120 Ataka · 9M120-1 Ataka
  Kh-23M · Kh-25 · Kh-25ML · Kh-29L · Kh-29T · Kh-29TE · Kh-29TD · Kh-66 · S-25L
ATGM  3M7 · 9M14 · 9M113 Konkurs · 9M114 Shturm · 9M123 Khrizantema · 9M133 · 9M133FM3 · 9M133M-2
SAM  95Ya6 · 9M311 · 9M311-1M · 9M331 · 9M37M
Naval SAM  Volna-M
Britain 
AAM  Fireflash · Firestreak · Red Top · Skyflash · Skyflash SuperTEMP · SRAAM
AGM  AS.12 · ZT-6 Mokopa
AShM  AJ.168
ATGM  BAe Swingfire · MILAN · MILAN 2 · ZT3
SAM  Starstreak
Japan 
AAM  AAM-3
AGM  Ki-148 I-Go Model 1B
ATGM  Type 64 MAT · Type 79 Jyu-MAT
SAM  Type 81 SAM-1C · Type 91
China 
AAM  PL-2 · PL-5B · PL-5C · PL-7 · PL-8 · TY-90
AGM  AKD-9 · AKD-10 · HJ-8A · HJ-8C · HJ-8E · HJ-8H
ATGM  302 · HJ-73 · HJ-73E · HJ-9 · QN201DD · QN502CDD
SAM  HN-6
Italy 
AAM  Aspide-1A
AGM  CIRIT · L-UMTAS · Spike ER
ATGM  Spike-LR2MR
Naval AShM  Nettuno
SAM  Mistral SATCP
France 
AAM  AA-20 Nord · Matra R511 · Matra R530 · Matra R530E · Matra Super 530D · Matra Super 530F · Matra R550 Magic 1 · Matra R550 Magic 2 · Mistral
AGM  9M14-2 Malyutka-2 · AS-20 Nord · AS-30 Nord · AS-30L Nord · HOT-1 · HOT-2 TOW · HOT-3 · Spike ER
ATGM  HOT · SS.11
SAM  Roland · VT1
Sweden 
AAM  RB24 · RB24J · RB71 · RB 74 · RB 74(M)
AGM  Rb05A · RB 53 Bantam · RB 55B Heli TOW · RB 55C Heli TOW · RB 75
ATGM  Rbs 55 · Rbs 56
SAM  Rbs 70
Israel 
AAM  Shafrir · Shafrir 2 · Python 3
ATGM  Spike-MR
  AAM = Air-to-Air Missile   AGM = Air-to-Ground Missile   AShM = Anti-Ship Missile   ATGM = Anti-Tank Guided Missile (Ground mounts)   SAM = Surface-to-Air Missile