Show Aeroplanes Can Be Used Effectively I 1 S Aga Against Submarines Asserts Expert I T ON ONDON DO DON June JUlie 23 That 23 That aeroplanes L LO I Lj can be effectively employed eel against 1 submarines Is the opinion o of L. L BlIn J I who Is regarded here as an I authority on aeronautical engineering He lie has evolved ed a plan b by which he contends German Gelman submarine warfare against British commerce can be bech ch checked Put Pu t in a nutshell m my scheme is as follows he writes In The Syren and Shipping To have at selected places along ulong the coast of or Great Britain and Ireland a number of small but highly efficient aerial squadrons rons whose duty would be le either closet closely to scrutinize the tho area comprised between tho the coast coastline coastline line some Home miles allIes from rom It or in I special cases to act as a convoy to liners or cargo calgo If lf the sea area defined above were rendered a danger zone zore fo for the tile enemy's submarines to enter and If It the tho enemy were made to realize that within that zone their submarines ran a greater risk than the merchant vessels they i were out to attack then it would follow tollow follow fol tol- tol low that the submarine blockade I I would be rendered Ineffectual It would of or coulse course he be argued that If It the tho enemy's submarines were pro pre I vented from Crom operating within miles of or our coast COURt they could still carr carry their operations bc beyond ond that limit This argument argument would In theor theory be correct but It should be noted that all German submarine attacks on British ve vessels have b been en carried out within sight of or the tile British h coast and arid In Inside the tile 1 O mlle mile limit which ili ll is ts well within tho the ran range o of oC aeroplanes nes In hr mo most t weather conditions To 10 meet tho double difficulty of hitting a rno ln moving submarine and of oC the tile possible harmless explosion llon of or bombs h by their Impact against the water vater Mr fr holds hollis that aeroplanes Intended Intend intend- ed to tackle submarines must be specially spec spec- lally armed That special armament nt lie he says sas must consist of ot a number of or efficient anti submarino bombs capable of oC surmounting surmounting sur nor mounting the two preceding tl ties s. s In other words worda an antisubmarine antisubmarine sub anti marine air all bomb born must dama damage e the tho submarine whether it actual strikes es esthe the vessel or 01 not nol provided It falls Calls within twenty yards ards of the craft and it il must not Ilot explode on impact with the water Such submarine anti air bombs Mr adds add hu have now no been designed |