Show FIVE CLASSES OF TORPEDOES all equally deadly if only they hit the mark there are five classes ot of torpedoes the earliest form was a stationary submarine mine usually exploded beneath a ship by actual contact such mines are still used tor for harbor defense but sometimes they are fired cred by mechanical means from shore at the moment a hostile vessel is passing over them the spar torpedo also still used consists 0 of an explosive charge carried at the end of a long bear spar in a boats bows the craft being rowed close clase up to the doomed ves seland the charge exploded the towing torpedo as its name implies was towed along and maneuvered neu vered so as to explode underneath an vessel bessel this kind being in turn followed by the true sell self ing torpedo the whitehead now la in general use the last form which need be noticed is the brennan whose movements can be controlled from the shorn |