Show WOULD NEED submarines ARINES german armans would require that number to effectually blockade all british port ports assuming that tho the german sub uial rinea rines are based at zeebrugge Zee brugge the time required 1 for the passage to and from blockading stations et off the ports of great britain would be about four days the average time necessary for overhauling at the base between trips may be estimate it 1 ss diva and tha time which may be spent at sea between visits to the base cannot well exceed twenty days consequently it would be impracticable to maintain more than about halt half of the total force of submarines on blockading stations there are forty nine alue port ports on the coasts of england scotland and wales which it vi would be necessary for the german lerman submarines to blockade if all supplies are to be cut off an effective blockade of any port could scarcely arcely Bc be maintained in the face of defensive operations which must bo be expected wath less ess than three submarines and double that number would be none too many it the min icum number of three boats be allowed for each port the germans would mould require at least constantly con antly on station to close all the ports of great britain that la Is allowing for the necessary passage time to and from the base b ass and the essential overhaul ng period the total force should be submarines worlds work P |