It is estimated that each hatch weighs in excess of 300 pounds, thus it takes two or three crew members to open or close a hatch. ... hatches) are labeled with a damage control classification (e.g. X, Y, Z, W, etc) as required by the Naval Ships Technical Manual (N STM), Chapter 079. ... analysis based on the authorsa#39; interpretation of NSTM 079, notable difia#39;erences were observed later during the ship visit.
|Title||:||Fire safety analysis of the 225' WLB(R) seagoing buoy tender|