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Subject: 
Re: BNSF new paint
Newsgroups: 
lugnet.trains
Date: 
Wed, 26 Jan 2005 20:19:50 GMT
Viewed: 
2824 times
  
In lugnet.trains, Larry Pieniazek wrote:
In lugnet.trains, Tim David wrote:
The Deltic was pretty much unique in railway
terms in that it used the Deltic diesel engine (2) developed by Napier from
those for motor torpedo boats.

Fairbanks Morse diesel locoomotives used a very successful opposed piston (1)
diesel engine first developed for us in US Navy subs.

http://www.hazegray.org/rail/product.htm#fm

1 - two pistons sharing a common combustion chamber per cylinder, IIRC...

Interesting, I didn't know that. I don't know about the mechanical
merits/demerits of opposed pistons I suspect they have higher maintenance
requirments that a conventional piston singal piston design. I also suspect that
the FM application came first, its quite a step in engineering imagination to go
to an opposed piston design but it would be a huge jump to go straight to the
Deltic design. I know that the Deltic locomotives were fairly successful but
didn't last as long as some of their contemporaries, partly due to outside
influences (the introduction of HSTs) but also (I think) due to high running
costs.

Tim

PS I found this other link with some downloadable deltic piston animations,
http://www.wis.co.uk/justin/deltic-engine.html When I scrolled to the bottom
there was that standard Lego disclaimer! We get everywhere!



Message is in Reply To:
  Re: BNSF new paint
 
(...) Fairbanks Morse diesel locoomotives used a very successful opposed piston (1) diesel engine first developed for us in US Navy subs. (URL) - two pistons sharing a common combustion chamber per cylinder, IIRC... (20 years ago, 26-Jan-05, to lugnet.trains)

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