Towing plans and drawings of towing equipment and rigging associated with towing operations are included in this
The enclosed drawings are intended to serve as both guidance and examples of typical tow configurations. Exercise
care in selecting compatible components. Important considerations include the following:
Each leg of a bridle should be strong enough to assume the entire resistance of the tow.
For a Christmas Tree rig, using chain bridles and pendants will promote a deeper underrider and minimize
interference with intermediate tows.
Towing flounder plates and plate shackles are designed to be fabricated easily. Flounder plates and cheeks of
plate shackles can be fabricated from common steel (1 e., ABS Grade A or ASTM A-36). Pins must be
machined from 150,000 psi minimum yield material such as AISI 4140. When pins are fabricated, it is
recommended that a material certification be required
Plate shackles shown herein are not necessarily suitable for beach gear or heavy lifting rig applications