 Three further prototypes were ordered on 14 March 1945 against Specification S.10 / 45 and powered by Napier E.122 engine , but the order was cancelled and the aircraft were not built . 
 Three further prototypes <a href='uninflect' title='1'><mark>were</mark></a> ordered on 14 March 1945 against Specification S.10 / 45 and powered by Napier E.122 engine , but the order was cancelled and the aircraft <a href='uninflect' title='2'><mark>were</mark></a> not built . 
Three further prototypes was ordered on 14 March 1945 against Specification S.10 / 45 and powered by Napier E.122 engine , but the order was cancelled and da aircraft was not built .