Trapezoid, area of, 159
Trapezoidal rule, 159
Treatment of mild steel, 12
Trials of H.M. ships, 168, 256
on measured mile, 256

Triangle, area of, 159
Trim, change of, 204

-, moment to change, 1 inch, 206 Triumph, H.M.S., stability of, 195, 218 Tumble home, effect on stability, 219 Turning of ships, 234

trials in Royal Navy, 242

Twin screw ship, turning of, 241

UNRESISTED rolling in still water, 223 Unstable equilibrium, 182

Upper deck of a cruiser, 43