 Hugo Sperrle, commanding Luftflotte 3, regarded it as a success.Between 10 July and 31 October 1940 lost 73 machines to enemy action, and a further eight were shot down during 1940 in night operations over Britain.The last Heinkel lost in 1940, piloted by "Unteroffizier" Bruno Zimmermann, was shot down by Pilot Officer J. G Benson and Sergeant P. Blain in a Boulton Paul Defiant of No.