One of Marineville's most important defense features are the hydromic missiles. These are installed underground but as soon as the alarm is sounded they are swung into vertical position in front of the control tower. The hydromic missiles are made from a new alloy, Prexferos, which, Marineville scientists claim, can withstand the highest friction pressures. The missiles, with 25,000 mph dyno-prop rota engines, are powered by liquid gas.
