 Malins.The aircraft, with Macmillan and Malins aboard was finally lost between Lakhidia Char and Chittagong, but the crew were rescued.A small number of civil operated IIIDs and IIIFs were used for survey duties in the 1920s and 30s, while in October 1934 a single IIIF was entered into the MacRobertson Air Race, reaching the finishing line in Melbourne but too late to be classed as completing the race.