The Supermarine Sheldrake was a British amphibian biplane flying boat developed by Supermarine from the Supermarine Seagull with a revised hull.
[1] It was powered by a Napier Lion engine mounted between the wings driving a four-bladed propeller.
[1] Only one Sheldrake, serial number N180, was built.
[2] Data from Supermarine Aircraft Since 1914.
[3]General characteristics Performance Armament