105 to 155

Merlin Helicopter Light Gun Royal Artillery

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Merlin Helicopter Carrying 105mm Light Gun

A RAF Merlin helicopter carries a 105mm Light Gun during a training exercise for reservists.

Royal Air Force Benson 606 (Chiltern) Reserve Squadron instructors delivered training to British Army students during an Underslung Load Course at Benson airfield on 21st March 2013.

Students were assessed on their capability to perform drills associated with rigging a 105mm weapon system to a Royal Air Force Merlin helicopter.

AS90 155mm Self Propelled Gun
AS90 155mm Self Propelled Gun

An AS90 Self-Propelled Gun is pictured during an exercise in the North of England.

The AS90 is a 155mm self-propelled gun that equips six field regiments of the Royal Horse Artillery and Royal Artillery.

The AS90 is fitted with a 155mm, 39 or 52-calibre gun barrel. In trials, two AS90 guns were able to deliver a total payload of 261kg on to a single target in less than ten seconds.

An automated loading system enables the gun to fire with a burst rate of three rounds in fewer than ten seconds, an intense rate of six rounds a minute for three minutes and a sustained rate of two rounds a minute.

The gun is equipped with a recoil and hydrogas suspension system, which allows the turret to traverse and fire through a full 360°.

The range is 24.7km using conventional ammunition. The AS90 also fires assisted rounds, which provide an extended range to 30km. Fitting a 52-calibre barrel instead of the standard 39 calibre extends the range beyond 40km.

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