Home' Defence Technology Review : DTR APR 2015 Contents INNOVATIONS
DEFENCE TECHNOLOGY REVIEW | ISSUE 08 | APR 2015
40mm cased telescoped anti-air
airburst round on the way
The BAE Systems/Nexter joint venture CTA
International (CTAI) is continuing apace with
final development of its 40mm case telescoped
ammunition anti-air airburst round.
The company’s A3B- T (anti-air airburst –
tracer) will join the CTAI stable of 40mm cased
telescoped ammunition and is designed to engage
unmanned aerial vehicles (UAV), helicopters, low-
speed aircraft, rockets and missiles at extended
ranges and with higher hit-kill probability than 30-
35mm gun systems.
The A3B-T’s enhanced hit-kill probability is
generated by very high accuracy and the round’s
payload of 200 tungsten pellets, which destroy
or otherwise disable the target upon detonation
at a pre-programmed range. The pellets, each
measuring approximately 20mm long and 6mm in
diameter, form a lethal cloud in the flightpath of the
At a mass of 2.82kg and 255mm long overall,
the A3B-T exits the muzzle at a velocity of 900
metres per second. Maximum effective range,
according to CTAI, is 4,000m.
The 40mm cased telescoped ammunition is
mated to the CTAI 40mm Cased Telescoped
Armament System (40 CTAS).
The 40 CTAS forms the main armament
of the French Army’s new Jaguar 6x6 EBRC
reconnaissance vehicle, where it is housed in the
Nexter T40 turret.
In June 2014, the UK Ministry of Defence and
the French defence procurement agency (DGA)
qualified the 40 CTAS’s Cased Telescoped
Cannon and two ammunition natures: the Armour
Piercing Fin Stabilised Discarding Sabot - Tracer
(APFSDS-T) and Target Practice - Tracer rounds.
Should the Nexter VBCI be proposed to meet
Australia’s Land 400 Combat Reconnaissance
Vehicle (CRV) requirement, DTR understands the
Military-Off-The-Shelf (MOTS) Plus configuration
will feature the T40 turret-40 CTAS combination.
Whilst the Land 400 Operational Concept
Document details a requirement for the CRV
mission system to shoot down UAVs, there is no
such capability listed in the Key Requirements
Matrix component of the request for tender,
although respondents are free to offer such options
with their proposed solution.
Interestingly, one of the terminal effects tests
required of the CRV’s main armament is against
a target set-up that is representative of a utility
helicopter, whereby the target must be perforated
at a range not less than 3,000m.
– Ian Bostock
Cut-away of the CTA International A3B-T round showing the
payload of tungsten pellets. Image: CTAI
SOV-Cdo to receive new PDU
The new Special Operations Vehicle – Commando
(SOV-Cdo) for the Australian Army’s 2nd Commando
Regiment is set to receive new power distribution units
(PDU) to cater for increased power demands from onboard
communications systems and information technology.
To support Joint Project 2097 Special Operations Vehicle
proof of concept testing, the Land Engineering Agency
(LEA) – part of Land Systems Division, Defence Materiel
Organisation (DMO) – designed and built a PDU to ensure
the SOV-Cdo’s communications systems have reliable power,
even in harsh conditions.
The PDU design incorporates resettable circuit breakers to
handle overload situations and a selection of various military
standard output connectors. LEA also subjected the design
to a range of tests, including those for shock, vibration,
hot and cold. Based on Supacat’s Mk 2 High Mobility
Transporter Extenda, each SOV-Cdo will be fitted with up
to three PDUs manufactured by Sydney firm Rojone under a
AUD$2.45 million contract awarded in December 2014.
Of the 89 SOV-Cdo on order, the first 32 vehicles are to be
handed over to the DMO in the first quarter of 2016, with final
deliveries scheduled for the last quarter of 2016.
SOV-Cdo initial operating capability is planned for August
2016 and final operational capability in June 2018.
New power distribution units will be installed in the
SOV-Cdo fleet. Image: DTR
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