HMS Petard, assisted by Wellesley aircraft of the No. 47 Squadron, located the u-boat and attacked the submarine with depth charges for nearly ten hours and finally forced the stricken boat to the surface at around 1040pm.
The biplane Vickers Type 253 design, which used a radical geodesic airframe construction that was derived from that used by Barnes Wallis in the airship R100, was ordered by the Ministry and tested against the specification along with the Fairey G.4/31, Westland PV-7, Handley Page HP.47, Armstrong Whitworth A.W.19, Blackburn B-7, Hawker P.V.4 and the Parnall G.4/31.
Vickers Viscount | Wellesley College | Vickers | Arthur Wellesley | Wellesley | Vickers Wellington | Wellesley, Massachusetts | Jon Vickers | Diana Vickers | Vickers Vimy | Vickers machine gun | Richard Wellesley, 1st Marquess Wellesley | Metropolitan-Vickers | Vickers Limited | Vickers VC10 | Canadian Vickers | Vickers plc | Newton-Wellesley Hospital | Wellesley Wild | Vickers Wellesley | Vickers-Armstrongs | Vickers Vildebeest | Vickers 6-Ton | Thomas Vickers | Patricia Vickers-Rich | Music to Make Boys Cry (Diana Vickers song) | Gordon Wellesley | Arthur Wellesley Vowell | Arthur Wellesley, 4th Duke of Wellington | 104th Wellesley's Rifles |
It was used for the first flight over Mount Everest in the Westland Wallace, and in 1938 set the world's long-distance record in Vickers Wellesleys.
Examples of aeroplanes with Townend rings were the Douglas O-38, Vickers Wellesley, the Westland Wallace and the Gloster Gauntlet.