AMERICAN AIRCRAFT IN ROYAL AIR FORCE SERVICE: CURTISS HAWK 81A TOMAHAWK. (CH 17252) The first Curtiss Tomahawks, Marks I and IIA, to enter squadron service with the RAF, in the hands of No. 403 Squadron RCAF at Baginton, Warwickshire. The Squadron operated the Tomahawk for only a short time, yielding them in favour of Supermarine Spitfires in May 1941. Copyright: © IWM. Original Source: http://www.iwm.org.uk/collections/item/object/205210781