Show TESTING GUNS TO DESTROY AIRSHIPS Field Guns suns With Split Trails Trails' Most Satisfactory In Washington In the future every field gun made for tor the tho army will be constructed with a special view for tor its use se flying machines mach n s. s though Its availability for ordinary fighting against land forces forces' will not be destroyed de de- While every make of ot aeroplane gun gunas as well as all the special models made to tight fight air craft has been carefully Investigated by the war department authorities the attitude has been taken that it is useless to attempt to stop attack from the air by means of any special gun Therefore Therefore the transformation trans trans- formation of field artillery to such a form torm as will render It available to repel repel repel re re- pel attack from the air as well as on terra firma has been the decision reached by our military authorities This object has bas been achieved ed by the theus us use of the split trail for tor all field guns The trail of or a field gun is the part upon which the recoil comes when the gun Is fired and md In all old style guns gUlls this was one piece while in the new guns being made It is divided like a u compass compas u used ed for tor drawing B Bj By this means menns the ordinary field gun can be elven so great grent an elevation that It is isable isable able to fight the thousands of or feet teet above e while in the howitzer with Its superior elevation elc this feature becomes becomes be be- comes omes still more morl useful In case cuse an on extreme elevation Is needed where an I aeroplane attack Is expected ted the trails already divided dl to give the highest elevation ele possible under ordinary ell cir are aie burled In the ground while the wheels of or the W weapon apon are left lett in their normal position The six pound howitzer er with the cb changed trail can be given gl an elevation ele of ot 70 dEgree degrees de do green grees while tb the field Held guns which under under un un- der del the old t system tem had only an elevation elevation eleva tion of or 20 degrees by sinking the trails traits may easily hit bit an nn object at an nn angle let le- le of t CO W degrees This however Cr Is but a small part of the work worl being done for defense against as It Is Js generally realized that with the tremendous speed of the moll modern ern air all craft their de destruction Is 18 simply an exa exaggerated form of or duck shooting with the duck duek ready rendy to tire fire back bick at lit the hunter Therefore It Is believed that It Is only by fighting hack back with tike like air nil craft ron that that much will be accomplished Colonel Isaac N Lewis U U. S S. S A A. A retired retired re re- tired has ball perfected ted a II gun un which his has given some remarkable results In ho tests held beld both In this country and In Eu Europe rope With this weapon Lieutenant mint of the th Belgian army firing fir In lug ing from n i White biplane w which b hie h wn was trav at nt tine the ratio rate of ot fifty miles an on hour placed 1 elev eleven tn n shots out of In a n thirty foot fot target The pin gull Uil Is II capable of or tiring firing a II maximum of or shots a n minute This weapon I N Is of It t the h air cooled type and weighs list but twenty twenty six ix and n 11 half pounds pound while It fires firt the ammunition ammunition am lI used l-d l In the ordinary type of small arm arias of ot the country which may adapt It It In lu the United States t this being a n SI al caliber Blast Razes 1500 Foot Hill I tolton olton Cal CIlI Eighty Cal thou thousand pounds of ot dynamite were u ut ed 1 II lu in one Ime blast t here tn to demolish h part pirt of or Mount Slover tr n It hill hili about 1500 feet high The blast crumbled a 11 Inree portion nf of the th hill hili hilland hilland and uncovered d millions of or tons tuns of ot lime liaise t d u wt for Il making c cement ent |