[N&W] Re: Jawn Henry
nw-mailing-list at nwhs.org
nw-mailing-list at nwhs.org
Mon May 31 14:57:02 EDT 2004
I want to thank Gordon Hamilton for the indepth and educational review of
the different wheel arrangement designation systems available for the Jawn
Henry. I cannot add to the different designations, but I can give what the
N&W classified this locomotive.
I went to my copy of a Locomotive Classifiaction Booklet that the railway
issued in 1957. It has no designation for the locomotive class, but gives
the wheel arrangement as "CC-CC" under the heading of "A.A.R. Symbol." In
the railway's locomotive disagram booklet, the N&W headed the page of the
Jawn Henry diagram as "6-6-6-6 COAL FIRED, STEAM TURBINE , ELECTRIC DRIVE
LOCOMOTIVE".
Regardless of what designation systems were available to be used, the N&W
used 6-6-6-6 as its official designation. From a historical standpoint,
that is what we need to refer to the Jawn Henry as.
Bud Jeffries
----- Original Message -----
From: "N&W Mailing List" <mailing-list at nwhs.org>
To: "N&W Mailing List" <mailing-list at nwhs.org>
Sent: Thursday, April 25, 2002 10:54 PM
Subject: Re: Jawn Henry
> There have been differing suggestions posted about the proper wheel
> arrangement designation for N&W
> steam-turbine-electric locomotive 2300 (Jawn Henry), so I want to add my
two
> cents (I apologize for my delay on this, but I have been out of town for
> eleven days in the past two or three weeks). The most authoritative
source
> on locomotive wheel arrangement designations that I have available is the
> 1956 (15th Edition) Locomotive Cyclopedia, and the following information
> has been extracted from it.
>
> It might be helpful to start with conventional steam locomotives. Page
519
> of the Cyclopedia explains the scheme of the familiar Wythe system for
> designating steam locomotive wheel arrangements, such as 2-6-6-4 for an
N&W
> Class A. But, anyone interested in steam locomotives should be aware that
> the Cyclopedia lists five other differing systems that have been used at
one
> time or the other because these other systems may be encountered
somewhere.
> For example, the book, The Steam Locomotive in America by Alfred W. Bruce
> (W.W.Norton & Co., 1952) uses the American Locomotive system
> because Bruce was an engineering official with that company. That
company's
> systems was like the Wythe expect it omitted the minus signs and added the
> letters C for a compound, a S for superheated and T for tank engine, as
well
> as figures to denote the weight to the nearest 1k lb. So, a N&W Class A
> would have been a 2664 S 573 to the American Locomotive Company. In
> addition to the Wythe and American Locomotive systems, the Cyclopedia
lists
> other systems used by the
> Lima Locomotive Works, the Baldwin Locomotive Works, as well as the French
> System, and the German or Continental System.
>
> Now about the 2300. Pages 40 and 41 of the Cyclopedia give the AAR
standard
> system of nomenclature for axle and truck arrangements of locomotives
having
> electric transmissions, which includes the 2300. The AAR standard system
> (Manual F-103) was adopted in 1932 and revised in 1949. As is commonly
> known, letters are used to represent the number of powered axles in a
truck,
> i. e., a C would represent one three-axle truck with all axles powered, or
> four C's would represent the
> four three-axle trucks under the 2300 using the AAR system. Less commonly
> known is the proper use of minus and plus signs in combination with the
> letters. The AAR standard states, in part, that + signs are used to
> indicate articulated joints between trucks under a single locomotive and
> minus signs are used to indicate separation between swivel type trucks,
not
> articulated. Because neither the swivel trucks nor the span bolsters
under
> the 2300 were articulated, I believe the designation for the 2300 under
the
> AAR system would be C-C-C-C. On Page 444 of the Cyclopedia, however, the
> 2300 is pictured, and the wheel arrangement is given as 6-6-6-6. Louie
> Newton, who is about to go to press with his book on the 2300, confirms
that
> this latter designation is the one commonly used rather than the AAR
system.
> But, if the AAR system is cited, it is important to use the plus and minus
> signs correctly.
>
> For a final example of the AAR system, consider the Virginian EL-2B
electric
> locomotive, each unit of which had four two-axle non-articulated trucks
and
> two span bolsters which WERE articulated. A General Electric brochure
> (Ry-24241-A, 8-47) on the EL-2B clearly shows the articulation between the
> span bolsters and designates the wheel arrangement of each unit as
B-B+B-B,
> the plus sign indicating the articulated joint between the span bolsters.
>
> Gordon Hamilton
>
> ----- Original Message -----
> From: "N&W Mailing List" <mailing-list at nwhs.org>
> To: "N&W Mailing List" <mailing-list at nwhs.org>
> Sent: Sunday, April 07, 2002 8:29 PM
> Subject: Re: Jawn Henry
>
>
> > The wheel configuration was 6-6-6-6 on the engine. Anything else?
> > Ron Wilkinson (NWHS Member)
> > __________________________________________________________
> > The correct wheel arrangement for Jawn Henry is: C-C + C-C. The four
> trucks
> > were paired via span bolsters vs. each being independent in some way;
> hence
> > the use of - and + to describe this arrangement.
> >
> > Jerry Crosson
> > __________________________________________________________
> > Yes, Gary, that is the correct way to show its wheel arrangement,
although
> > it probably should be C-C+C-C, since it had two span bolsters, with two
> > 6-wheel trucks under each span bolster. Under the Wythe system, it
would
> be
> > called an 0-6-6-6-6-0. All axles were powered. Jim Nichols
> > __________________________________________________________
> > C+C+C+C is correct, Garry. Jawn had four six-wheel trucks, all axles
> > powered.
> > EdKing
> > __________________________________________________________
> > Garry,
> > C+C+C+C is the wheel arrangement for JAWN. Though technically a steam
> > locomotive, JAWN had electric traction motors like a Diesel Electric
and
> so
> > the wheel arrangement is designated the same way Diesels are and not
like
> a
> > typical steam engine. For traction motors, a letter designates the
number
> > of powered axles on the truck and numbers the number of un-powered
axels.
> > So Jawn had 4 three axle trucks with all three axles powered on each
> truck.
> > An engine with two four wheel trucks with all axels powered would be a
B+B
> > and one with two 6 wheel trucks with all axles powered would be a C+C.
On
> > the other hand, if the center axle on the 6 wheel trucks was an idler
> > (un-powered) it would be designated A1A+A1A. Personally I think JAWN
> should
> > be listed as a 6-6-6-6, but that's just me 8^).
> >
> > Harry Wilkens
> > __________________________________________________________
> > Jawn Henry was Road No 2300; Class TE-1; 6-6-6-6 Wheel Argt;
> > Builder: Baldwin-Lima-Hamilton-Westinghouse Electric;
> > Built date, 1954; Construction No: 75911; Steam pressure: 600 psi;
> > Weight: 818,000 Lbs, without tender: and Scrapped: 12-1957.
> >
> > Bob Stockner
> >
> >
> > N&W Mailing List wrote:
> > > HI, WHAT WAS THE WHEEL CONFIGURATION OF THE JAWN HENRY LOCOMOTIVE?
IN
> > > THE ARTICLE ON LINE THAT I WAS READING IT IS LISTED AS: C+C+C+C.
THANKS
> > > IN ADVANCE FOR YOUR TIME. GARRY SHRAMEK COPPER CENTER, ALASKA
> >
> >
>
>
>
>
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