diesel

The first single-cylinder Marshall tractor to be introduced was the Marshall 15/30 in 1930. It had an 8-inch (200 mm) bore with a 10-inch (250 mm) stroke (= 8.237 liters) and the maximum speed was 550 r.p.m., or 9.1666 revolutions per second. In 1932 the 15/30 was upgraded to become the Marshall 18/30. This model featured the same bore and stroke dimensions but the maximum r.p.m. was increased and the tractor's transmission was heavily modified. The Field-Marshall tractors were commonly used to pull agricultural machinery such as threshing machines from site to site. Once in place, the Field-Marshall would be used as the powerplant for the threshing machine, the tractor's belt pulley coupled by a large flat drive belt to the threshing machine's pulley. Field-Marshalls with tracks were produced under the Fowler brand name, being converted in the Fowler factory at Leeds. The first was designated the "Fowler VF", later ones were "VFA"s. Source: en.wikipedia.org/wiki/Field_Marshall#:~:text=The%20first%...

This photo is labeled "Engine Room USS G-3" at www.pigboats.com/subs/g-boats.html This conforms with information on this page www.history.navy.mil/danfs/g1/g-3.htm which notes that the G-3, aka Turbot (Submarine No. 31), was commissioned at the New York Navy Yard on 22 March 1915, close to the date on the negative. New York Navy Yard was also known as the Brooklyn Navy Yard and is the site of many Bain Photos. Wikipedia entry: en.wikipedia.org/wiki/USS_G-3_(SS-31) Exterior photos of G-3 at: www.history.navy.mil/photos/sh-usn/usnsh-g/ss31.htm www.navsource.org/archives/08/08031.htm

Very nice shot and Joe does look happy to pose for the occasion. If my memory serves me right that is a "Rail Car" beside Joe, the difference was that the motor was built into the passenger carriage and was not a detachable power unit like the big powerful diesels or steam engines that could pull passenger or goods trains.

Swordscookie Oh no, my abject train ignorance exposed again! :) Adding a tag for Rail Car immediately...

Don't rush to judgement on yourself NLI, I'm no expert and it may be the rameishing of an auld fella!

Love that - rameishing! And haven't seen you do that yet...

Photos of Monaghan are quite uncommon, even though it was a big station. The AEC engined diesel railcar has already passed to CIE with the abolition of the Great Northern Railway in 1958, and to distinguish between CIE's and the former GNR units they added the letters G and N at either end of the railcar number as with 'G609N'. That tour travelled over the Irish North West route as fairwell to the railway before its complete closure.