40CT cannon

40CTC
40CTC of a British Ajax armoured fighting vehicle
Type	Cased telescoped autocannon
Place of origin	France United Kingdom
Service history
In service	2022–present
Used by	British Army French Armed Forces
Production history
Designer	CTA International
Designed	1997–2022
Manufacturer	CTA International
Specifications
Mass	340 kg (750 lb)
Length	3,428 mm (11 ft 3.0 in)
Barrel  length	2,800 mm (110 in)
Cartridge	40×255 mm
Caliber	40 mm (1.6 in)
Action	Recoil-operated, rotating breech
Rate of fire	200 rpm
Effective firing range	2,500 m (8,200 ft) (4,000 m (13,000 ft) for the Thales RapidFire naval CIWS)
Maximum firing range	8,500 m (27,900 ft) [1]
Feed system	Automatic Ammunition Handling System (AHS)

The 40CTC (40 mm Cased Telescoped Cannon) is a 40 mm autocannon and the central component of the Franco-British 40CTAS (40 mm Cased Telescoped Armament System) developed by CTA International. It is designed to fire 40mm telescoped ammunition. ^[2] This format provides significant benefit within vehicles in the space envelope required for the gun and the ammunition storage. ^[3] However, the selection of the unfielded, thus unproven, new design for major French and British programmes was controversial. ^{[4] [5]}

The 40CTAS has been ordered by the French Army for use on its future EBRC Jaguar armoured reconnaissance vehicle. The latter entered service in February 2022. It has also been mandated for the UK Ajax (formerly FRES SV) and (cancelled) Warrior Capability Sustainment Programme (WCSP) programmes.

In February 2010, CTA International signed a £11m contract with the French and British defence ministries to qualify the 40CT; this included environmental testing and the firing of 15,000 rounds. ^[6] The company has confirmed that the ammunition for the British weapons will be assembled by BAE Systems at the ROF Glascoed facility. ^[7]

Design

The 40CTAS consists of the following modules:

• The 40 CT autocannon
• The AHS (Ammunition Handling System), a linkless carousel-type feeding system that can be adapted to any turret configuration in terms of shape and capacity. The Ammunition handling system isn't the same on French systems and the British systems:
  • French AHS: developed by Nexter and used on all its system.
  • British AHS: Lockheed Martin in collaboration with the British Army offered an alternative solution, aiming to separate the ammunition storage from the crew. Lockheed Martin subcontracted Meggitt to develop and produce the AHS for the Ajax, and the Warrior CSP (later cancelled). ^[8]
• The GCE (Gun Control Equipment), an advanced pointing and stabilization system that ensures high site and bearing performance when firing on the move.
• The Gun Mount, the mechanical interface between the gun and the turret; it is adaptable to integration needs.
• The CTAS-C (CTAS-Controller) is the control and command box for the weapon and power supply system. Depending on requirements, it can also integrate fire control, including the "coincidence firing" function to maximize precision performance.

Variants

Nexter/Thales Naval RapidFire

The Naval RapidFire is a naval platform based on the 40CTC. Intended as close-in defense capability for surface vessels against air and land threats, it can fire the A3B round. ^[9] The A3B rounds releases 660 grams (23 oz) of tungsten pellets that form a cloud of sub-projectiles in front of a target. The suggested method for aerial engagements is to fire at 80 rounds per minute, shooting a 4-round burst at 4,000 m (13,000 ft), then waiting a few seconds for damage assessment before firing another burst. ^[10] The RapidFire was selected for integration on the 4 Bâtiment ravitailleur de forces (BRF) of the French Navy as well as the upcoming class of 10 Patrouilleurs Hauturiers (PH) offshore patrol vessels. The first system was installed on the lead ship of the BRF, FS Jacques Chevallier, in February 2023. ^[11]

Nexter/Thales Land RapidFire

It is the land-based variant of the RapidFire and is meant for integration on military vehicles. ^[9] The turret can store between 70 and 140 rounds, with additional rounds stored in the turret structure's compartment. Rate of fire is 200 rpm with a range against aerial and surface targets of 4,000 and 2,500 metres (13,100 and 8,200 ft) respectively. The truck-based RapidFire can be mounted on a 6×6 and 8×8 chassis, the latter of which is able to de-mount the system onto the ground for it to operate independently. ^{[12] [13]}

Ammunition

The 40CTAS's proprietary 40 mm telescoped ammunition is manufactured for various applications, including anti-infantry and anti-materiel. The variants differ in weight, effective range, and payload depending on the intended target.

Type	Projectile weight (g)/(oz)	Muzzle velocity (m/s)/(ft/s)	Penetration	Effective range (m)/(ft)	Targets	Notes
APFSDS-T Armour Piercing Fin Stabilised Discarding Sabot - Tracer	550 grams (19 oz) [1]	1,500 m/s (4,900 ft/s) [1]	140 mm (5.5 in) RHA at 1,500 m (4,900 ft) [1]	2,500 m (8,200 ft) [1]	Medium armoured vehicles [1]
GPR-T General Purpose Round - Tracer	980 grams (35 oz)	1,000 m/s (3,300 ft/s)	210 mm (8.3 in) concrete or 15 mm (0.59 in) RHA at 1,000 m (3,300 ft)	<8,500 m (27,900 ft)	Infantry, light armoured vehicles, defensive fortifications	Available as point detonating (GPE-PD-T) or airburst munition (GPE-AB-T) AB version can spread fragments over a 125 m² area [10]
A3B-T Anti Aerial Airburst - Tracer	1,400 grams (49 oz)	900 m/s (3,000 ft/s)	-	4,000 m (13,000 ft)	Unmanned aerial vehicles, light aircraft, helicopters
TP-T Target Practice - Tracer	980 grams (35 oz)	1,000 m/s (3,300 ft/s)	-	8,500 m (27,900 ft)	-
TPRR-T Target Practice Reduced Range - Tracer	730 grams (26 oz)	1,000 m/s (3,300 ft/s)	-	6,500 m (21,300 ft)	-	Reduced range variant of TP-T

Users

Current operators

France (300 + 8)

The French Army plans to order a total of 300 EBRC Jaguar, 150 have been ordered at the moment: ^{[14] [15]}

• 20 Jaguar ordered in 2017 ^{[16] [17]}
• 42 Jaguar ordered in 2020 ^[18]
• 88 Jaguar ordered in 2022 ^[15]

The French Navy is using the cannon on one ship family, and is planning to order other ones:

• 4 Bâtiment ravitailleur de forces ordered in 2019, each ship is equipped with 2 RAPIDFire. ^{[19] [20]}

United Kingdom (245)

The British Army ordered 245 Ajax equipped with the 40CTC. ^[21]

Future operators

Belgium (60)

The Belgian Land Component ordered 60 EBRC Jaguar in 2018 as part of the CaMo cooperation with the French Army. It will succeed to the Piranha III DF30 & DF90. ^[22]

France (7 + 3 in option)

The French Navy ordered 7 OPV Patrouilleurs Hauturiers and plans to order 3 additional ones, each to be equipped with one RAPIDFire. ^[23]

Potential operators

France

Several French Army programmes might lead to the introduction of the 40CTC cannon within the forces beyond the EBRC Jaguar:

• France is in discussion with Greece regarding the sale of 120 second-hand VBCI IFV as a quick solution for Greece. ^[24] It is highly likely that France would replace those vehicles with the VBCI-2 and the T40 turret equipped with the 40CTC cannon.
• A report from French elected official demonstrated a need for a cost-effective SHORAD capability in the French Army. The answer given is the Land RapidFire. ^[25]

Greece (200)

KNDS and Hellenic Defence Systems partnered in 2022 to offer the VBCI Philoctetes to the Hellenic Army. ^[26] In 2024, more details regarding the potential sale of VBCI were revealed: ^{[27] [24]}

• 200 VBCI-2 that would be equipped with the T40 turret (40CTC and the Akeron MP ATGM)
• 50 VBCI-2 in support configurations (sanitary, artillery observation, command)
• 120 VBCI, second-hand from the French Army for rapid implementation

Kuwait

KNDS and the UK is offering the ARTEC Boxer to the Kuwait Army and the 40CTC with the T40 turret is being offered as a potential weapon. ^[28]

Luxembourg (38)

The Luxembourg Army plans to order 38 EBRC Jaguar. ^[29]

Qatar

KNDS and the UK is offering the ARTEC Boxer to the Qatar Army equipped with the T40 (turret with 40CTC cannon). ^[28]

KNDS France also proposed the VBCI-2 equipped with the T40 turret to Qatar. ^[30] In April 2024, discussions for a first batch of 120 VBCI-2 were ongoing. ^[27]

Cancelled orders

United Kingdom

The British Army cancelled the modernisation of the Warrior in 2021. A surplus worth £70 million of 40CTC cannons was revealed by the UK MoD following this cancellation. ^[31] A total of 515 cannon had been ordered by the MoD in 2015. The consequence is that some of those cannons were available for sale, or for other programme. ^[31] It is unknown whether these were used to supply Belgian and Luxembourg EBRC, or if the MoD kept them for future potential programmes.

Lost bids

Australia

The Australian Army opened a tender process in the Land 400 Phase 2 programme. Nexter offered the VBCI-2 equipped with the T40 turret and 40CTC cannon. The Australian Army shortlisted two of its competitors, the Boxer equipped with the LANCE 30 turret and the Patria AMV equipped with the BAE E35 turret. ^[32] The Boxer won the programme, 133 in the CRV variant equipped with a LANCE 30 turret using the MK 30-2  [ de ] cannon. ^[33]

Bulgaria

Nexter pitched the VBCI-2 with the T40 turret and the Nexter Titus as future vehicles for the Bulgarian Army in 2019. ^[34] The Stryker won the competition and a contract was signed in 2024. The IFV variant is the M1296 Dragoon which is equipped with the ATK Orbital MK.44S Bushmaster II cannon. ^[35]

Lithuania

In 2015, Nexter offered the VBCI-2 with the T40 turret or the Leonardo Hitfist to the Lithuanian Army. ^[36] The Boxer won the competition in 2016 with the sale of 91 "Vilkas" equped with the Samson Mk II RCT turret using the ATK Orbital MK.44S Bushmaster II cannon. ^{[37] [38]}

Spain

In 2015, Nexter offered the VBCI-2 with the T40 turret for the new infantry fighting vehicle of the Spanish Army. ^[39] The Piranha V won the tender process and it is equipped with the Guardian 30 turret with the ATK Orbital MK.44S Bushmaster II cannon. ^[40]

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