AGUSTAWESTLAND HELICOPTERS AgustaWestland Helicopters is the prime contractor for the British Army's AH Mk1 Attack Helicopter, built under licence from The Boeing Company. BOEING The world's largest manufacturer of both civil and defence aircraft, Boeing manufacture the AH64 Apache Attack Helicopter for the US Army and other forces around the world. THE BRITISH ARMY The Apache AH Mk1 Attack Helicopter provides the British Army with a major enhancement to its operational capabilities across a range of theatres.