Code of practice for design and operation of ships´ derrick rigs.
STANDARD published on 30.9.1976
Designation standards: BS MA 48:1976
Publication date standards: 30.9.1976
The number of pages: 42
Approximate weight : 126 g (0.28 lbs)
Country: British technical standard
Category: Technical standards BS
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. Status: Confirmed