54. What kind of propellers, or propeller? Material? Pitch? Right handed or left? How will it send the vessel's head—going ahead—backing?
55. Learn everything you can about her construction, and equipment.
56. What is her draft when light—holds empty? What is her stability when in this condition? Is her propeller out of water in that condition? How much? What is her light displacement? How can you determine her stability—by means of shifting weights on deck?
57. How many cubic feet to a ton of bunker coal?
58. How many pounds to a cubic foot of sea water? Fresh water?
59. How do you figure the cubic capacity of a lifeboat? How many cubic feet allowed per person?
60. What is the strength of a new six-inch manila line? Of a five-inch wire hawser?
61. What is the tensile strength of mild steel? Of cast iron? The compressive strength?
62. Can you figure out the safe load for a steel boom under given conditions? Shell and stiffining given, supports and angle given? Safety factor 5.
63. Become familiar with the fittings of the holds. Go in, look around and study out the plan of construction and use.