link to PRR T-1 test study done by C&O

RDGRAILFAN · **Posted:** Thu Mar 16, 2006 12:20 pm

http://www.findarticles.com/p/articles/ ... _n13642634

Not sure if this was posted before but with the interest in the PRR T-1 from the previous thread thought it would be of interest

Dave Stephenson · **Posted:** Thu Mar 16, 2006 3:32 pm

Thanks for posting the link to the C&OHS article on the PRR T1 tests. What's mising from the version cited are the graphics that were part of the original article in C&O History (May 2005 issue). Kevin Holland did a superb job of presentation and layout. Makes the text a lot easier to understand. Copies available from C&OHS. I'd be happy to field any questions. There's more information on these tests than was printed.

Onder · **Posted:** Thu Mar 16, 2006 3:40 pm

This wanders a bit OT. I read the article found it
very good. I must ask, is there any info out there
on the final C&O Hudsons and esp. their typeB
poppets?
The tie in with the T1 is the valves and what
I heard was the consideration to put poppets
on the Greenbriers as well.

Dave Stephenson · **Posted:** Thu Mar 16, 2006 11:26 pm

I've never found anything definitive on the performance of the C&O L2a's with the type B rotary cam gear. Because they were so late in the game, I doubt that any tests were ever run. The J3a 4-8-4's (of which 614 is a member) were considered for poppet gear and streamlining, but never built that way.