815 Naval Air Squadron is a Royal Navy Fleet Air Arm squadron flying the AgustaWestland Wildcat HMA.2 helicopter and is the Navy's front line Wildcat Naval Air Squadron. The squadron is based at RNAS Yeovilton (HMS Heron) in Somerset. The squadron is capable of carrying out multiple roles such as: counter-narcotics, anti-piracy, Above Surface Warfare (ASW), search and rescue, disaster relief and flying and engineering training. In the early 2000s, the Navy said that the squadron was largest helicopter squadron in Europe.