630 Excursions

NW Mailing List nw-mailing-list at nwhs.org
Mon Mar 25 15:04:13 EDT 2013

Hi List,

For those inquiring about the two diesels giving help to the
Tennessee Valley's ex-SR 630. The engines are actually a mother and slug
set. NS #716 is a slug unit. Slugs do not have diesel engines. They get
their electric from the "mother" engine. The way I understand it is that
the GP40-2 and slug have the starting tractive effort two GP 40-2's without
the fuel consumption of two diesel engines.

Thank you Mr. Walt Gay for the videos!

John Hecker

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