Since the flight medic will first be lowered to the ground to continue treatment of the casualty, he becomes the primary signalman for the hoist.
Signals should be made by only one signalman ; more than one creates too much confusion and can be dangerous.
You could see the local signal box with the signalman busy in it.
David spent more than 20 years working as a signalman on the railways.
Mr Cammish started out at sea as a junior signalman in the Royal Navy in 1949 and after eight years travelling the world, he joined the Coastguard in 1957.
The scout plane's robed signalman tapped the pilot on his right wing and gave a thumbs-up.
These were the employees who operated the railway: the station staff, the signalmen , the shunters and the guards on the trains.
Perhaps the only trades which are exclusive to railways in their nomenclature are platelayers, shunters and signalmen .
Railway shunters, pointsmen, signalmen and yardmasters began an indefinite strike at midnight on August 5, demanding the immediate settlement of salary anomalies.
Combat experience made signalmen constantly adjust their views on how to develop the communications system.