Lynx HAS.2 / Mk.2(FN)
Initial production version for the Royal Navy (HAS.2) and the French Navy (Mk.2(FN)), powered by Gem 2 engines and with wheeled undercarriage, folding rotors and tail and deck lock.
HAS.2 equipped with British Sea Spray radar, with Mk.2(FN) having French radar and dipping sonar.
When it used in the anti-submarine role, it can carry two torpedoes or depth charges.
For anti-surface warfare, it is equipped with either four Sea Skua missiles (Royal Navy) or four AS.12 missiles (French Navy).
60 built for Royal Navy, and 26 for France.

Lynx HAS.2.5
An interim HAS 3 equipped with the improved Gem 42 series engines but the original HAS 2 gearbox.
Only used by 702 NAS in 1985/86 before all were converted to full HAS 3 standard.

Lynx HAS.3
Improved version of HAS.2 powered by Gem 42-1 engines and with upgraded gearbox.
Thirty built from new, with deliveries starting in March 1982 and all remaining HAS.2s (53 aircraft) converted to HAS.3 standards.

Lynx HAS.3GM
Modified HAS.3 helicopters for the Royal Navy, for service in the Persian Gulf, with improved electronic warfare equipment, revised IFF and provision for Forward looking infrared (FLIR) under fuselage.
Originally deployed for the 1990–91 Gulf War.
Designated HAS.3S/GM when fitted with secure radios. (
GM denotes Gulf Modification).

Lynx HAS.3S
Improved version of the HAS.3 for the Royal Navy fitted with secure radio systems.

Lynx HAS.3SGM
An improved HAS.3GM with integrated Secure V/UHF communications, Mode 4 IFF, Loral Challenger ALQ 157 Infra Red Countermeasures turrets (fitted on the fuselage side high up just behind the Plot's/Observer's doors), M130 Chaff/Flare dispensers and provision for Sandpiper Forward looking infrared (FLIR) mounted under the port side inboard weapon carrier.
First aircraft converted was XZ733, which deployed with the Type 22 frigate HMS Brave in January 1991 for Operation Granby (Gulf War).

Lynx HAS.3ICE
HAS.3 modified for Antarctic service aboard ice patrol ships HMS Endurance.
Designated HAS.3SICE when fitted with secure radios.

Lynx HAS.3CTS
HAS.3 upgraded with avionics system proposed for HMA.8.
Seven converted as test beds.

Lynx Mk.4(FN)
Upgraded version for the Aéronavale, with Gem 42-1 engines.
Fourteen built.

Lynx HMA.8
Upgraded maritime attack version based on Super Lynx 100.
Gem 42-200 engines, BERP type main rotors and larger tail rotor of AH.7.
Fitted with FLIR in turret above nose, with radar moved to radome below nose.

Lynx HMA.8(DSP)
DSP from digital signal processor.

Lynx HMA.8(DAS)
DSP aircraft were modified with "Defensive Aids Subsystem".

Lynx HMA.8(SRU)
DAS aircraft modified with SATURN ("Second-generation Anti-jam Tactical UHF Radio for NATO") Radio Upgrade.
Incorporates SIFF ("Successor to IFF").

Lynx HMA.8(CMP)
Combined Mods Programme.
SRU aircraft modified with improved communications and defensive systems.

With all HMA.8 aircraft upgraded to CMP standard, HMA.8(CMP) aircraft were re-designated back to HMA.8(SRU).
The Lynx HAS.8 fleet is currently undergoing further modifications, by the Lynx Operational Support Team, to improve self-defence, mission execution and survivability.
These modifications will not affect the SRU designation.
Lynx HAS.2 / Mk.2(FN)
Initial production version for the Royal Navy (HAS.2) and the French Navy (Mk.2(FN)), powered by Gem 2 engines and with wheeled undercarriage, folding rotors and tail and deck lock. HAS.2 equipped with British Sea Spray radar, with Mk.2(FN) having French radar and dipping sonar. When it used in the anti-submarine role, it can carry two torpedoes or depth charges. For anti-surface warfare, it is equipped with either four Sea Skua missiles (Royal Navy) or four AS.12 missiles (French Navy). 60 built for Royal Navy, and 26 for France.
Lynx HAS.2.5
An interim HAS 3 equipped with the improved Gem 42 series engines but the original HAS 2 gearbox. Only used by 702 NAS in 1985/86 before all were converted to full HAS 3 standard.
Lynx HAS.3
Improved version of HAS.2 powered by Gem 42-1 engines and with upgraded gearbox. Thirty built from new, with deliveries starting in March 1982 and all remaining HAS.2s (53 aircraft) converted to HAS.3 standards.
Lynx HAS.3GM
Modified HAS.3 helicopters for the Royal Navy, for service in the Persian Gulf, with improved electronic warfare equipment, revised IFF and provision for Forward looking infrared (FLIR) under fuselage. Originally deployed for the 1990–91 Gulf War. Designated HAS.3S/GM when fitted with secure radios. (GM denotes Gulf Modification).
Lynx HAS.3S
Improved version of the HAS.3 for the Royal Navy fitted with secure radio systems.
Lynx HAS.3SGM
An improved HAS.3GM with integrated Secure V/UHF communications, Mode 4 IFF, Loral Challenger ALQ 157 Infra Red Countermeasures turrets (fitted on the fuselage side high up just behind the Plot's/Observer's doors), M130 Chaff/Flare dispensers and provision for Sandpiper Forward looking infrared (FLIR) mounted under the port side inboard weapon carrier. First aircraft converted was XZ733, which deployed with the Type 22 frigate HMS Brave in January 1991 for Operation Granby (Gulf War).
Lynx HAS.3ICE
HAS.3 modified for Antarctic service aboard ice patrol ships HMS Endurance. Designated HAS.3SICE when fitted with secure radios.
Lynx HAS.3CTS
HAS.3 upgraded with avionics system proposed for HMA.8. Seven converted as test beds.
Lynx Mk.4(FN)
Upgraded version for the Aéronavale, with Gem 42-1 engines. Fourteen built.
Lynx HMA.8
Upgraded maritime attack version based on Super Lynx 100. Gem 42-200 engines, BERP type main rotors and larger tail rotor of AH.7. Fitted with FLIR in turret above nose, with radar moved to radome below nose.
Lynx HMA.8(DSP)
DSP from digital signal processor.
Lynx HMA.8(DAS)
DSP aircraft were modified with "Defensive Aids Subsystem".
Lynx HMA.8(SRU)
DAS aircraft modified with SATURN ("Second-generation Anti-jam Tactical UHF Radio for NATO") Radio Upgrade. Incorporates SIFF ("Successor to IFF").
Lynx HMA.8(CMP)
Combined Mods Programme. SRU aircraft modified with improved communications and defensive systems.
With all HMA.8 aircraft upgraded to CMP standard, HMA.8(CMP) aircraft were re-designated back to HMA.8(SRU). The Lynx HAS.8 fleet is currently undergoing further modifications, by the Lynx Operational Support Team, to improve self-defence, mission execution and survivability. These modifications will not affect the SRU designation.
Westland Lynx