This early Wellesely, the fifth production aircraft, was assigned to No 148 Sqn, but then fitted with a more powerful Bristol Pegasus engine with a long-chord cowl, as seen here, and first flew in this form on 21 January 1938. Although still wearing the squadron number here, it was assigned to Bristol and it crashed near Bristol on Friday 13 May 1938. It is also described as a trials aircraft for the Long Range Development Unit, which spawned from No 148 Sqn, but was not one of the five Type 292 Wellesleys.