w124bob Posted September 4, 2022 Share Posted September 4, 2022 Compressed air powered, caption on Flickr states it was on of three. This one being based on a W4 workshop number668 the others used Hawthorn Lesley frames. I reckon it would be just possible to hide the motor under that sheeting, anyone(Ruston!) tempted to have a bash? 2 Link to post Share on other sites More sharing options...
Ruston Posted September 5, 2022 Share Posted September 5, 2022 (edited) On 04/09/2022 at 17:30, w124bob said: Compressed air powered, caption on Flickr states it was on of three. This one being based on a W4 workshop number668 the others used Hawthorn Lesley frames. I reckon it would be just possible to hide the motor under that sheeting, anyone(Ruston!) tempted to have a bash? I'm sure that's based on a Hawthorn, Leslie, not a Peckett. Interesting. Edited January 3, 2023 by Ruston Link to post Share on other sites More sharing options...
w124bob Posted September 5, 2022 Author Share Posted September 5, 2022 2 hours ago, Ruston said: I'm sure that's based on a Hawthorn, Leslie, not a Peckett. Interesting but what's it got to do with Ruston 48DS class? Nothing, posted in wrong thread! Link to post Share on other sites More sharing options...
Michael Hodgson Posted September 5, 2022 Share Posted September 5, 2022 On 04/09/2022 at 17:30, w124bob said: Compressed air powered, caption on Flickr states it was on of three. This one being based on a W4 workshop number668 the others used Hawthorn Lesley frames. I reckon it would be just possible to hide the motor under that sheeting, anyone(Ruston!) tempted to have a bash? Not come across the likes of that before. Is that compressing the air itself with a diesel engine or similar? Would compressed air locos working through cylinders like that be classed as "fireless" engines the same as those that have a big cylinder of steam filled from some stationary plant? Link to post Share on other sites More sharing options...
Ruston Posted September 6, 2022 Share Posted September 6, 2022 (edited) 13 hours ago, Michael Hodgson said: Not come across the likes of that before. Is that compressing the air itself with a diesel engine or similar? Would compressed air locos working through cylinders like that be classed as "fireless" engines the same as those that have a big cylinder of steam filled from some stationary plant? "Fireless" only applies to steam engines. This has a diesel engine with a compressed air transmission, so in the same way that you have diesels with mechanical transmissions being known as diesel-mechanical (DM) and ones with hydraulic transmissons being diesel-hydraulics (DH), this would be Diesel-compressed air. The Industrial Railway Society categorised them as DC. I'm sure that they aren't locomotives in the true sense. They seem to be self-propelled mobile compressors, rather then traction units. Edited September 6, 2022 by Ruston 2 Link to post Share on other sites More sharing options...
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