| Short trials life for two P.531 O/N and one P.531-1. Unlike their Army Air Corps counterparts, these 3 P.531s were never reworked into their Wasp HAS.1 equivalents.  |
Units | |
| Years | Units | bold : Current base of the Unit |
| 1961/64 | 771 NAS  | Portland Heliport |
| 1959/61 | 700 NAS | RNAS Culdrose RNAS Yeovilton |
List of Aircraft | Help Us | |
| C/N | Mod | Built | ID In this Org | In other Org | |
| s2/5268 | 1958 | XN332: dd into RN service 2 Oct 1959 as 1st trials airframe. Spent + |  G-APNV: P.531-1 built at Eastleigh, ff 30 Sep 1958. 2nd prototy+ | ||
s2/5267  | 1958 | XN333: d/d 20 Oct 1959 as 2nd trials airframe, bird strike 11 Nov 1+ | G-APNU: P.531 O/N built at Eastleigh, ff 20 Jul 1958. 1st proto+ | ||
| s2/5270 | 1958 | XN334:  Delivered into RN service 6 Oct 1959 as 3rd trials airframe,+ | XN334: P.531 O/N built at Eastleigh, to UK Royal Navy for tria+ | ||
