Unlike the British, who fitted a small helicopter (Westland Wasp) on their frigates with only a minimum of redesign, the RCN decided to use the far more capable and sophisticated CH-124 Sea King.
However, on 25 April the Santa Fe was intercepted while sailing away and disabled by depth charges from Antrim's Wessex helicopter and subsequent attacks by task force Wasp and Lynx helicopters, which fired at least six AS-12 missiles on the submarine.
Previously before its retirement the SAAF operated the Westland Wasp for the SAN in the anti-submarine warfare role.
Although capable of landing a Westland Wasp helicopter on the quarterdeck the ship lacked a hangar and aviation facilities and thus had to rely on external air support.
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