847 Naval Air Squadron is a squadron of the Royal Navy Fleet Air Arm. It operates the Westland Lynx AH7 helicopter and provides armed reconnaissance and light assault support to 3 Commando Brigade Royal Marines. The squadron was previously known as 3 Commando Brigade Air Squadron, from which it re-formed on 1 September 1995. The squadron is based at RNAS Yeovilton in Somerset, a Royal Naval establishment, with helicopters drawn from an Army Air Corps pool and flown by Royal Marines and Royal Navy pilots.