The 40th Heli Squadron is a helicopter squadron of the Air Component based at Koksijde Air Base. It is dedicated to search and rescue, anti-submarine warfare and troop transportation operations. It operates four NH90 NFH helicopters.^[1] Before the arrival of the NH90 NFH the squadron operated Westland Sea King and Alouette III helicopters on behalf of the Maritime Component, the Squadron embarks a helicopter on F930 Leopold I and F931 Louise-Marie - Karel Doorman class frigates when sailing on deployment and has also have had helicopter embarked on Dutch frigates as well