Different solutions on design of chafing gear can be used.
If a chafing chain is to be used, it should have the following characteristics:
2.8.1
Type
The chafing chain should be stud link chain.
2.8.2
Length
The chafing chain should be long enough to ensure that the towing
pennant remains outside the fairlead during the towing operation.
A chain extending from the strongpoint to a point at least 3 m beyond
the fairlead should meet this criterion.
2.8.3
Connecting limits
One end of the chafing chain should be suitable for connection
to the strongpoint. The other end should be fitted with a standard
pear-shaped open link allowing connection to a standard bow shackle.
2.8.4
Stowage
The chafing chain should be stowed in such a way that it can
be rapidly connected to the strongpoint.