. American engineer and railroad journal . tability of these boats, weights being kept as low as possibleto give a good metacentric height. The 18-in. Whitehead tor-pedo, which weighs 875 lbs. with its tube and launching gear,is a little over half a ton. This weight being considerablyabove the water-line, it was necessary to keep the other weightsas low as possible. The engines were located and the framingof the boats so arranged that the cranks would revolve be-tween the floor-plates of the transverse framing, thus loweringthe centre of gravity of the engine to the lowest possible point. The
. American engineer and railroad journal . tability of these boats, weights being kept as low as possibleto give a good metacentric height. The 18-in. Whitehead tor-pedo, which weighs 875 lbs. with its tube and launching gear,is a little over half a ton. This weight being considerablyabove the water-line, it was necessary to keep the other weightsas low as possible. The engines were located and the framingof the boats so arranged that the cranks would revolve be-tween the floor-plates of the transverse framing, thus loweringthe centre of gravity of the engine to the lowest possible point. The results of calculations for stability are as follows : At normal condition, ready for service with ammunition,torpedo and crew of five men on board : Metacentric height Angle of heel at maximum stability Righting moment at maximum of vanishing stability Maim. ft. 43° 89° Texas. ft. 36° 16,30s 73/2° With 30 men on deck in addition to weight at normal con-dition : * See American Enuineer for October, u z. s H o o 7 Ed as D ca o a a. =o
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