Operational History
The Proctor was initially employed as a three-seat communications aircraft (Proctor I). This was followed by the Proctor II and Proctor III three-seat radio trainers.
In 1941, the Air Ministry issued Specification T.9/41 for a four-seat radio trainer. The P.31 – originally known as the "Preceptor" but finally redesignated the Proctor IV – was developed for this requirement with an enlarged fuselage. One Proctor IV was fitted with a 250 hp (157 kW) Gipsy Queen engine. This was used as a personal transport by AVM Sir Ralph Sorley but production models retained the 210 hp (157 kW) motor of earlier marks.
At the end of the war, many Proctors of the early marks were sold on to the civil market and were operated in Australia, New Zealand and Europe. The Mk IV continued in service with the RAF until the last was withdrawn in 1955.
In 1945, a civil model derived from the Proctor IV was put into production for private owner, business and light charter use as the Proctor 5. The RAF purchased four to be used by air attachés.
The final model of the line was the solitary Proctor 6 floatplane sold to the Hudson's Bay Company in 1946.
Three highly modified Percival Proctors, nicknamed the "Proctukas," were produced for the film Battle of Britain as stand-ins for the Ju-87 Stuka. After test flights revealed instability, they were ultimately abandoned and never appeared in the film.
Read more about this topic: Percival Proctor
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