Naut.
a tackle having a double block and a single block, giving a mechanical advantage of three or four, neglecting friction, depending on which is the standing and which is the running block. See diag. under tackle .
[ 1690-1700 ]
Naut.
a tackle having a double block and a single block, giving a mechanical advantage of three or four, neglecting friction, depending on which is the standing and which is the running block. See diag. under tackle .
[ 1690-1700 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012