Primary links

Does rule 3d mean that the loading block must be at or above 5cm below the contact depth before start AND during loading? For example, can the loading block be at 25cm below the center line of the hook if the contact depth=20cm? Will this depth be...

The rule does not state that the loading block must be at of above 5cm below the contact depth during the loading. Testing will continue until failure of the Boomilever which is defined in 5.f.line 3.