gnomeengine

en.wikipedia.org/wiki/Harold_D._Kantner

Richard Arthur Norton: Thanks for making the connection between aviator Harold D. Kantner and this image. We will add his full name when we update.

This and the adjacent photo (see below) in the collection are of the same cutaway Gnome 9-cylinder rotary engine (proof stampings, wear marks and tool marks are identical in both photos). A view of the two photos at the largest resolution reveals a "Gnome Engine Company - 47 Victoria Street, Westminster, S.W." manufacturer's plate, and a serial of "Engine No. 30767". Presumably, this was a British license-built / British affiliate manufactured Gnome et Rhône 9-cylinder engine. Unfortunately, I haven't the knowledge to describe the variant of engine with any further specificity. Hopefully, another can use the engine's serial number and origin to provide more information. Unlike a radial engine, which featured a fixed cylinder block with rotating crankshaft, the rotary engine's crankshaft remains stationary and the entire cylinder block rotates. Before being cutaway for use in training, it is likely this engine was used on an aircraft (or a number of aircraft) until it was deemed unfit for further rebuild. See: en.wikipedia.org/wiki/Gnome_et_Rh%C3%B4ne

Thanks again for the information! I have updated the description for both of the images.

This was probably taken on the first day of the Sheepshead Bay military preparedness show. A contemporary account: "Tex Millman flying his fast little monoplane with a spread of only eighteen feet from tip to tip ran over from Hempstead Plains a distance of about eighteen miles arriving at the Speedway in sixteen minutes according to the announcer. Though he was not in the race competition Millman gave an exhibition flying several times around the track." books.google.com/books?id=AHjmAAAAMAAJ&pg=PA331&l...

grace!

See also

Thanks, we'll add his full name, and remove the unfortunate punct.