| C/N | Built | In this Organisation | In other Org |
| 61-393 | 1966 | XV370: Built as SH-3D. Shipped to Avonmouth (UK), reassembled and flown to Yeovil as G-ATYU on 11 Oct 1966. Became XV370.
|  XV370: wfu Aug 1989 to Instructional Airframe A2771. Became A2682 to AESS Gosport (HMS Sultan).
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| 61-394 | 1966 | XV371: Built as Sikorsky Sea King HAS.1 used as trials airframe.
| XV371: dd 22 May 1972 for trials. wfu 31 Mar 1995. Became instructional airframe A2699 to AESS Gosport (HMS Sultan).
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| 61-396 | 1966 | XV373: Built as Sikorsky Sea King HAS.1. Used as trials airframe.
XV373: wfu 1986, to Pendine Sands. Scrapped ?
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