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Re: [BRHSlist] Re: EMD 462

To: <BRHSlist@yahoogroups.com>
Subject: Re: [BRHSlist] Re: EMD 462
From: "Jan Kohl" <jkohl@n...>
Date: Mon, 5 May 2003 17:19:24 -0400
References: <4C3A8D22-7F3A-11D7-8283-000A959EED28@e...>
Wow, thanks for the info, Russ and Bill!

Cheers!

Jan
----- Original Message ----- 
From: William Barber 
To: BRHSlist@yahoogroups.com 
Sent: Monday, May 05, 2003 4:43 PM
Subject: [BRHSlist] Re: EMD 462


You are correct, Russ. Unit 462 was an Engineering test bed. IIRC, it 
was originally an NYC F3 traded in to EMD. In addition to an early 
16-645 engine, it also had the first EMD AC alternator (as opposed to a 
DC main generator) including a version at one time that had water 
cooled diodes. These never made it to production because the system was 
difficult to maintain and technology was changing fast enough so that 
when the production units were released in late 1965, (NYC GP40s) large 
enough air cooled diodes were available.

As you indicated, the unit worked out of Clyde Diesel Shop so that our 
Engineering people could check on the locomotive frequently and could 
make alterations as needed. In those days, the Q was VERY accommodating 
when it came to the development of new equipment; providing both track 
testing ( as the photos indicate) and a place to make modifications. In 
one form or another, the 462 lasted into the early '90s. In later 
years, it and several other test bed locomotives were used as braking 
units for other new locomotives undergoing testing in non revenue 
operation at the Pueblo test center. As braking units, the dynamic 
brakes are used to create a controllable load for the locomotive 
undergoing test.

Bill Barber

On Monday, May 5, 2003, at 03:04 AM, BRHSlist@yahoogroups.com wrote:

> Date: Sun, 4 May 2003 22:00:53 -0500
> From: "Russell Strodtz" <vlbg@e...>
> Subject: Re: Re: [BNlist] New CB&Q/BN photos....
>
> Jan,
>
> That was EMD 462. It was a test unit that was on the "Q" a great deal 
> in
> the early 60's. Was kept fairly close to Clyde so EMD could inspect it
> when they felt the need. IIRC it was the first unit that actually 
> operated
> with a 16-645 block in it. Was not a demonstrator and was never sold.
> Actually it was just a fixed up trade in but I can't recall from what
> source.
>
> Russ


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