BS MA 48:1976

This standard BS MA 48:1976 Code of practice for design and operation of ships' derrick rigs is classified in these ICS categories:

• 47.020.40 Lifting and cargo handling equipment

This British Standard code of practice refers to the design and operation of ships’ derrick rigs. It gives coefficients for estimating rope tensions, load diagrams, safe working loads, requirements for testing and for care and maintenance. Reference is also made to union purchase rigs.

Nomenclature; illustrations of form of rigs with typical head fitting of blocks; estimates of rope tensions; typical load diagrams; union purchase rig; estimating loading on various components; safe working loads of slewing guys for swinging derricks; single sheave block safe working loads; care and maintenance.