Hi Richard. Type YJ (Ventura) was used in a number of Applications. As always, it’s not the loco that’s important, it’s the engine that gives the sound personality. I would think a HST is closer -but it’s a guess! Wiki:
The engine as originally fitted to the HSTs was designated 12RP200L and was a V12 four-stroketurbo-charged & intercooled diesel unit of 79 litres which developed 2,250 bhp at 1,500 rpm. The design of the Valenta was based on the Ventura which was fitted to the Class 29 diesel locomotives, amongst others. The engine is famous for the "Valenta Scream" on starting from rest, a distinctive high-pitched whine caused by the engine's turbocharger.[2][3]In 1977, the Valenta received the Queen's Awards for Enterprise.[4]
Anybody know a Ventura in use as a Genset?