Doing my usual youtube cruise for diesel videos, and stumbled across this one:
http://ca.youtube.com/watch?v=gBkQQftn-AM

If you want to know why it sounds like that and doesn't blow, here's the engine it uses:
http://en.wikipedia.org/wiki/Napier_Deltic

 

Gotta love the way those Class 55 Deltics sound!

 

Sounds almost like its gonna blow up, Very neat looking motor

 

Here are a couple more...hopefully you haven't seen them yet...

http://ca.youtube.com/watch?v=XpUv9LlXtVY

http://ca.youtube.com/watch?v=Fb7WqQ...eature=related

http://ca.youtube.com/watch?v=gB0M1k...eature=related

http://ca.youtube.com/watch?v=w4MjC1...eature=related

http://ca.youtube.com/watch?v=RH709Z...eature=related

This last one is not a diesel, it's the SP 4449 and UP 844 arriving in Vancouver, WA the whistles are awesome!

 

Saw most of those this evening.
Most wives complain of husband's online games or ****, mine complains about me looking at diesels, especially classics like Lister CS's, Petters, semi-diesels, low speed, etc.

 

That's a neat technology. Thanks for posting this up.

 

Really makes you wonder why we keep building cylinder head motors, with this Napier Deltic and the Wenkel Rotary...

 

I didn't know Mazda made train engines! Trains now go MMMMMMMMMMMM! Now thats different!
ROFDLWSSP!

 

That's a pretty cool design..... Would it fit in my truck, though?

 

There were some diesel rotaries, just not overly successful.
Here's Rolls-Royce's entry:


And some nice little rotors for the Curtis-Wright produced engine. John Deere later built gensets of upwards of 2500hp based off these:

 

Nice sound but to me the GE's 4 stroke diesels sound the best!

 

Damn that's a freaky looking layout.

 

This video of a GE U23B sounds pretty cool...!