What is BS MA 48 - Ships' derrick rigs about?    
BS MA 48 discusses ships' derrick rigs. The aim of BS MA 48 is to provide the best industry guidance that ensures the reliability of ships' derrick rigs.
BS MA 48 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.
Who is BS MA 48 - Ships' derrick rigs for?    
BS MA 48 on ships' derrick rigs is relevant to:   
- ships' derrick rigs manufacturers   
- Product design engineers  
- Quality control and testing department     
Why should you use BS MA 48 - Ships' derrick rigs?    
A derrick is used for moving materials vertically and horizontally, comprised of a hoisting mechanism and pulleys or sheaves to create a mechanical advantage to lift large loads.  
BS MA 48 provides you with design requirements that shall be adhered to during the manufacturing and designing of derrick rigs. This can ensure that derrick rigs comply with national shipbuilding standards. BS MA 48 provides a test method for calculating load. This will ensure that the derrick rig can bear the load and is safe while operating preventing the hazardous situation.  BS MA 48 provides guidance for care and maintenance of derrick rig. This will ensure to maintain the functionality of the equipment and minimize its breakdown.
