438 "City of Montreal" Tactical Helicopter Squadron is a unit of the Canadian Forces under Royal Canadian Air Force. The squadron operates the CH-146 Griffon tactical helicopter from CFB St. Hubert in Quebec, Canada. Its tasks include transport, reconnaissance, search and rescue, and support to local law enforcement. The motto Going Down was adopted during the Second World War when operating on Hawker Typhoons over occupied Europe. This was the flight leader's instruction to begin diving attacks with bombs and/or cannons.