ABSTRACT
Wire rope similar to the aircraft cable in theatre rigging is used to suspend industrial-type chain hoists from the roof trusses. In an arena, lifting the motor itself to the high ceiling is problematic because of its weight, so the hoists are reconfigured to operate upside down, with the chain hook in the air and the motor hook on the floor. A simple rig that hangs straight down is call a dead hang, but when two pieces of steel are used in conjunction with the motor chain to form a Y shape, the result is known as a bridle. Arbitrarily select a reasonable length for one of the legs. Bear in mind that a bridle that hangs down more is easier to hang, and puts less stress on the equipment. But a bridle that hangs down too far may place the apex so low that the motor will not be able to fly out far enough.
