Page 62 - The Complete Rigger’s Apprentice

Figure 2-23B. An air block (this one a Harken ESP)
is used here as a deck-turning block. Unlike the con-
Figure 2-23A. The winch is a rotating lever with the ventional block shown in Figure 2-24a, this one has
fulcrum at the winch face and force applied by the no bail to attach the bungee cord to. Instead the cord
handle. Internal gearing compounds the leverage. In is rove through the hole in the middle of the block.
this case, the advantage is four to one. (Margaret Wilson-Briggs)

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