With difficulty. You will have to take the overhead train from Colchester to Liverpool Street Station, then the underground to Victoria Station and then the overhead to Gatwick.
No. You can get a tube train from Heathrow into central London and then an overhead train from London to Luton.
Most people call them aerial photographs. Intelligence officers call them "overhead" because in the spy business, aerial Photography is called "overhead coverage."
Fewer moving valve train parts such as the push rods.
An electric train works by using electricity from overhead wires or a third rail to power an electric motor, which then drives the train's wheels to move it along the tracks.
A passenger train
Train Passengers.
Profit
The engineer runs the train.
Chew chew train.
A train that carries goods is called a freight train.
Each part of a train is called a car.