On 14 April 1941, Warby's Maryland was mistaken for a Ju 88 and attacked by a Hurricane flown by Flying Officer Innes Westmacott. Warby had to force-land wheels-up. Later, Warby photographed the entire 250-mile length of the coast road from Benghazi to Tripoli. It was thought the task would take six sorties to complete. Warby did it in one, with every yard photographed and no breaks in coverage. During the flight he was chased out to sea four times by enemy fighters, but returned to his task having shaken off his pursuers. Being mistaken for a Ju88 sometimes had its advantages. On the same mission, with Frank Bastard and Paddy Moren, he also attacked a new Axis airstrip at Misurata they had discovered three days earlier. He first joined the traffic pattern and was given a 'green' to land. According to Frank, they overflew the airstrip at a height of 15-feet leaving three Italian bombers in flames.