Complex sentence: A dedicated search and rescue (SAR) version, the "Sea King HAR3", was developed for the RAF Search and Rescue Force, the type entered service in 1978 to replace the Westland Whirlwind HAR.10.
Split into simpler sentences: A dedicated search and rescue (SAR) version, the "Sea King HAR3", was developed for the RAF Search and Rescue Force. The type entered service in 1978 to replace the Westland Whirlwind HAR.10.