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VK2TV > FUEL 28.12.08 23:12l 77 Lines 3752 Bytes #999 (0) @ WW
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From: VK2TV@VK2TV.#MNC.NSW.AUS.OC
To : FUEL@WW
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# On : 12/29/2008 7:56:22 A
# UTC: 12/28/2008 20:56:22
From: KB2VXA@VK2TV.#MNC.NSW.AUS.OC
To : FUEL@WW
Hi Ray and all,
>Don't worry about Bob, he's a bit slow on the uptake but he catches on
>eventually. Speaking of 2 stroke Diesels, the Alco locomotive sound is
>legendary and the whine of the supercharger gave it a nice accent. The
>smoke was legendary too as if you hadn't guessed.
I'll get Wazza's attention with this posting!
Speaking of distinctive sounds, there was a 70 class shunting and transfer
locomotive that earned the nickname of the Boeing, because of the scream.
They were built at Commonwealth Engineering in Sydney and were powered by a
550 HP Caterpillar D397 four-cycle 12 cylinder Vee-type diesel. They use a
Voith L37U transmission and Voith-North British 37 final drive. The wheels
(0-6-0) were connected with outside connecting rods, like a steam engine.
Our (in NSW) first main line diesel locos were the 40 class, introduced
from November 1951. There were 20 in the class.
Those locos were ALCO through and through, from appearance to the power
plant, an ALCO 12 cylinder Vee-type four-cycle diesel. They were described
as a standard 1750 HP road switcher, with minor alterations for local
conditions. Interestingly, they were obtained from the Montreal Locomotive
Works in Canada.
The 42 class that I previously mentioned were a tad earlier than I
throught. Class leader 4201 was delivered in December 1955. Six of them
were built by Clyde Engineering Company in Sydney. They were described as
having the familiar nose-cab of the General Motors design. Under the hood
was a 1900 HP General Motors model 567C 16 cylinder Vee two-stroke diesel
engine.Ten more units were built (at the time my book was published) with
50 HP more. These were known as the 421 and were listed as still building.
The 421 class had a slightly different appearance and full control at both
ends. The 42 class had only a hostler's compartment for running backwards,
light. Almost in parallel with the 42 class was the 43 class, of which only
6 were built in 1955/56. They were a bit of an odd-bod loco, being
described as General Electric-ALCO, and they were ordered from Australian
Electrical Industries, and assembled in Newcastle by A. Goninan & Co.
Goninans are still manufacturing rolling stock in Taree, NSW. The 43 class
were powered by an ALCO series 244 four-cycle 12 cylinder, 1750 HP diesel.
Like the 42 class they had only a hostler's compartment at the rear. Shape
was similar to the 42 class but with "squarer" edges rather than curves
around the nose.
The 44 class was intorduced in 1957 and there was at least 150 in the fleet.
They were of GM cab design, like the 42 class, but with full controls at
both ends. Power was derived from an ALCO model 251 12 cylinder Vee-type
four-cycle diesel delivering 1950 HP. Double and triple headers were common
with this class.
One class I haven't mentioned is the 41 class, introduced in 1953. They
were of centre-cab design to facilitate running in either direction, unlike
the 40 class that had the cab offset towards the rear of the engine in true
ALCO design. They were intended as a shunting and yard transfer work
locomotive. The 41 class were built by British Thomson Houston and
Metropolitan Cammel Carriage & Wagon Company in England, and were powered
by two 500 HP Davey Paxman six cylinder V-type diesel engines. Their unduly
heavy axle loading of 20.8 tons prevented their use on lightly ballasted
tracks.
There have been many diesel locomotives since the 44 class, and a few
smaller types that I haven't mentioned. Maybe some other time.
Cheers ... Ray vk2tv
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