Wiktionary
main sheet
n. (alternative form of mainsheet English)
Usage examples of "main sheet".
Haul down the foresail, Mr Southwick, and check the main sheet a fraction.
He loosened the main sheet, cast off the tie-ers from the main, put the ship up to the wind, and ran forward to hoist both peak and main halliards.
Jake eyed his sails, decided he could point a touch higher, reached out with his right hand to the running rigging controls, kept tapping a switch to shorten his main sheet, his eye on her mainsail, while he handled the wheel by touch till he had her settled down on a lighter tack.
The other pulled in the main sheet, lifting one of the pontoons out of the rippling waves.