San Francisco League of Urban Gardeners
A weighted locomotive unit with traction motors but no diesel engine or generator. Generally used in yard duty where the switcher has enough horsepower, but not enough tractive force to push long strings of cars up a hump.
A motive unit with no diesel engines of its own; draws power for its traction motors from an attached regular diesel engine--a combination used primarily for heavy freight yard work.
a cut down old road switcher (usually) that has had the diesel engine and generator removed
a great fire in a locomotive firebox, and Frisco is a corruption of Francisco
Humorous perjorative term for those believed to be doing less work than you. "Heli-slug" for helitack, "camp slug" for fire camp support personnel, "engine slug" for engine crew member, etc.
A locomotive unit equipped with an operating cab, but not equipped with a diesel engine. This type unit has MU capability and traction motors, which receives electrical power from a mother locomotive.