PRR diesel-AC engine proposed in 1935?

Discussion relating to the PRR, up to 1968. Visit the PRR Technical & Historical Society for more information.

PRR diesel-AC engine proposed in 1935?

Postby pdtrains » Sun Mar 01, 2009 8:35 pm

I just unrolled a large blueprint I have here (one of many)

It's PRR, dated Altoona shops, 1935......Blueprint for a diesel-AC locomotive.

It looks like a P5A modified, with 2- B type trucks (0-4-4-0 in Steam terms, B-B in diesel terms)

Has 900 hp diesel engine in one end, and electric transformers, etc on other side.,

Cab in middle, 2 pantographs, just like the P5a modified.

HP rating is 900 hp diesel and 2100 hp electric.

Drawing just shows cab # 0000 in PRR keystones on ends, and on sides.

Anyone know anything about this proposed engine?
pdtrains
 
Posts: 392
Joined: Sat Feb 11, 2006 7:48 pm
Location: Phila, PA, Paso Robles, CA

Re: PRR diesel-AC engine proposed in 1935?

Postby Allen Hazen » Sat Apr 10, 2010 1:28 pm

Hmmm.
Short answer is, no, I don't know anything about it. On the other hand... There was a twin-engine, center cab, 1600 hp Westinghouse (WEMCO) B-B diesel that had a carbody at least vaguely reminiscent of a P5A modified. Substitute AC for DC transmission and replace the engine in one hood with a transformer and...
Allen Hazen
 
Posts: 2331
Joined: Fri Mar 12, 2004 10:14 pm
Location: Edmonton, Canada (formerly Melbourne, Australia)

Re: PRR diesel-AC engine proposed in 1935?

Postby ex Budd man » Wed May 19, 2010 6:24 pm

Al Staufer's Pennsy Power III shows a drawing of a Baldwin proposed center car twin diesel electric with A1A axle trucks that looks like a P5a sans pantographs. There's no mention of whether the power transmission is AC or DC. I can only guess that it would have been used west of Harrisburg on non electrified lines.
baldwin2000.jpg
The only thing missing is a keystone and PENNSYLVANIA on the side.
baldwin2000.jpg (203.3 KiB) Viewed 2327 times
"I may not have a brain, but I have an idea!" BOB, benzoate ostylezene bicarbonate.
ex Budd man
 
Posts: 906
Joined: Thu Nov 13, 2008 11:17 am

Re: PRR diesel-AC engine proposed in 1935?

Postby Allen Hazen » Wed May 26, 2010 11:38 pm

Wow!
I've never seen Stauffer's "PP3," but that's a remarkable drawing. (Could be taken as an after-the-fact prototype for a model I saw in the 1970s: one of the train-set manufacturers-- possibly Tyco-- had a plastic "GG-1" ... on diesel-style CC trucks!)

But I don't think it's what pdtrains was referring to. For one thing, probably too late: post-war, not 1935. And twin-engine, whereas the AC diesel-electric-electric proposal he mentions had a single 900 hp diesel in one end. This looks like ... a Baldwin center-cab in streamlined guise. The even axle-spacing in the trucks suggests it was A1A-A1A, but I don't see any steam generator exhaust on the cab. Maybe it was a proposal for a four-motor fast freight unit inspired by F-M's "Erie-built"?
Allen Hazen
 
Posts: 2331
Joined: Fri Mar 12, 2004 10:14 pm
Location: Edmonton, Canada (formerly Melbourne, Australia)

Re: PRR diesel-AC engine proposed in 1935?

Postby ex Budd man » Mon Jun 14, 2010 7:41 am

The Tyco faux GG-1 can be had on E-bay for $20 or so. A little work could approximate the Baldwin diesel. :-D
"I may not have a brain, but I have an idea!" BOB, benzoate ostylezene bicarbonate.
ex Budd man
 
Posts: 906
Joined: Thu Nov 13, 2008 11:17 am

Re: PRR diesel-AC engine proposed in 1935?

Postby Allen Hazen » Wed Nov 30, 2016 1:11 am

I just noticed the end passageway on the drawing: who ever came up with the specifications for this locomotive thought of it as either operating in multiple unit consists or pulling passenger trains. Or both.
Allen Hazen
 
Posts: 2331
Joined: Fri Mar 12, 2004 10:14 pm
Location: Edmonton, Canada (formerly Melbourne, Australia)

Re: PRR diesel-AC engine proposed in 1935?

Postby NorthWest » Wed Nov 30, 2016 12:03 pm

Strange coincidences... I just referenced this thread on another forum after someone asked about the first proposal discussed in this thread.

The interesting thing about the second proposal is that there are some things that make it appear to be an A unit for a set of locomotives- the diaphragm on only one end of the locomotive, the signal light (Mars/Gryalite) only on one end, and somewhat asymmetrical cab. Certainly a fun drawing.
User avatar
NorthWest
 
Posts: 376
Joined: Tue Jul 15, 2014 1:54 pm


Return to Pennsylvania Railroad

Who is online

Users browsing this forum: No registered users and 2 guests