RETDPI is correct. It is the Fairey Primer. Designed in 1948 to meet an RAF specification for a basic trainer.
Not designed in 1948 shirley?
Was it not the pre-war Tipsy M OO-POM, from Avions Fairey, stored in UK during WW2, returned to Belgium and re-assembled by Avions Fairey before being returned to England in 1947 as the Fairey Primary Trainer?