Alco S-1

Alco S-1 Engines

Here you can find pictures of two former Maine Central Alco S-1s last known to be at the HOBO RR in Lincoln, NH.

The S-1 series was built between May 1940 and June 1950, weighs 210,000 lbs and uses a Alco 539 6L four-stroke 6 cylinder diesel prime mover that develops 600 hp, and 57,500 lb of tractive effort, and carries 635 gallons of fuel. My thanks to The Diesel Shop for the information.

Pictures

Click on an image for a larger view.

Maine Coast RR 958 running around the train in Bath in July of 1998.
Photo by John Erickson.
Maine Coast RR 958 in Wiscassett in July of 1998.
Photo by John Erickson.
Maine Coast RR 958 running around it's train in Wiscassett in July of 1998.
Photo by John Erickson.
Maine Coast RR 958 Running around the train in Wiscassett in July of 1998.
Photo by John Erickson.
Maine Coast RR 958 hooking up in Wiscassett in July of 1998.
Photo by John Erickson.
Maine Coast RR 958 ready to return to Bath in Wiscassett in July of 1998.
Photo by John Erickson.
Maine Coast RR 958 in Wiscassett in July of 1998.
Photo by John Erickson.
The former Maine Central 958 at the Hobo Railroad in Lincoln NH on the 8^th of October, 2010.
Photo by John Erickson.
The former Maine Central 959 at the Hobo Railroad in Lincoln NH on the 8^th of October, 2010.
Photo by John Erickson.
The former Maine Central 958 at the Hobo Railroad in Lincoln NH on the 25^th of July, 2011.
Photo by John Erickson.

Definition
Term	Defined As
Back-Up Air Signal	A warning whistle which can be operated at the rear of the train when backing up. Air for its operation is taken from the train line. This may also be combined with a braking control valve.

Definition

Term

Defined As

Back-Up Air Signal

A warning whistle which can be operated at the rear of the train when backing up. Air for its operation is taken from the train line. This may also be combined with a braking control valve.

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By John Erickson

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Alco S-1 Engines

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