ABSTRACT
On the morning of 22 September 1917, a Royal Naval Air Service (RNAS) Large America flying boat sighted a small U-boat near the Dutch coast. The submarine was on the surface and steering north-east away from the East Hinder Bank. Flight Sub-Lieutenants N. A. Magor and C. E. S. Lusk piloted Curtiss H-12 No. 8695, the only Large America stationed at the Dunkirk Seaplane Station. Due to the patrol’s planned proximity to German seaplane bases in Flanders, two Sopwith Pups from Dunkirk’s Seaplane Defence Flight escorted the patrol mission. Upon sighting UB32, one of the UBII-class of coastal submarines operating with the Flanders U-Flotilla, Magor and Lusk immediately initiated a high-speed descent from their cruising altitude of 4,100 feet. The target was seven miles to the south-west of their position.1
