Complex sentence: On Jan 73 it was renamed 660 Squadron AAC and was the first unit to receive the Westland Gazelle AH.1 for operational service in May 1974 whilst at Salamanca Barracks.
Split into simpler sentences: On Jan 73 it was renamed 660 Squadron AAC. It was the first unit to receive the Westland Gazelle AH.1 for operational service in May 1974 at Salamanca Barracks.