a grade for which helper engines are needed to assist road grade locomotives
a motorhome with the engine mounted in the rear, usually a diesel that will provide you with a better ride and fuel economy
A plane in which the engine is mounted ahead of the propeller, so that the propeller pushes instead of pulls.
An arrangement where the propeller pushes the aircraft through the air.
A "pusher aeroplane" is one with the engine and propeller at the rear. The opposite is a " tractor aeroplane". All the early machines were pushers, but by 1914 the tractor was dominant.
An American motorhome with its engine at the rear
Team leader responsible for seeing that work gets done on schedule OR a locomotive built to help trains up steep grades by pushing from behind.