Show 7 iriri A 0 H JU sh I 1 i I 1 0 L jlius i B fal ron 1 S T 1 I 1 clr boil ci S A I 1 hy K WHERE WH LER SHE aff L JL ff h system of cf triangulation will give bearings to bewildered craft ALL AIL II 11 6 in S PORTS TO WATCH operators ut nt radio stations figure out position of boat by compasses Used in navy for years now new boru not alo least of tile dangers nt attending lending the business ot of boing a in ariner has been that ot of losing ones beart bearings while nt at son sea vms when vi hen OIL he sni sailors lors alfo was as IT irro are r replete with danger than in these days of advanced mari maritime tinte effi efficiency clency nut but though the terrors were eliminated one by one until there thera remained little to bt be afraid pf af there still was tile the disconcerting possibility of n ship losing itself of fogs and compass irregularities r of ral mishaps to ins instruments tra ments and disabilities of steering mechanisms thus thug every so often a liner or freighter or a worship warship was reported lost in tile ho fog or out of its course the united states naval communication service has ins perfected a system of triangulation that has eliminated the file possibility of bf further maritime reports if his 4 sort it Is not the discovery discover rf t tiny one man indeed it truly canant lie he classified as a di discovery it la Is a perfection ot of a basic niile alile i nt if f position that ani to formed the fundamental of range determination in the hie army and a straightforward geometric concerning inter lines lilies system explained the perfected system litis has been in ili URO ure tit in tile the american navy for a year at 44 White liall street the lie system wa u explained briefly bililly by tit ladies of the new york district contral controlling radio station static it Is to tn bu be that lint a ship shili 1 it 4 a hundred indred it miles lilies off tile tho middle aaion tic ile toast coast site has haa lost tier her ilir navigators are unable to toll tell lier her latitude nil and longitude at once the lie bewildered ships flushes flashes tile he american const coast a doin demand tind to be told tile hie inta data sit she needs most where am I 1 tin the request coming within tile sector for which the now new york district central controlling conti oiling radio station Is responsible the appeal la Is received by flack n radio compass stations located lit t montauk point L I 1 fire elro Isla island tid neach beach sandy flock and N J ia anch och of these theao stat stations lons Is connected with 44 whitehall street by telegraph and telephone these radio compass stations cannot communicate with the lost ship ns they are receivers only and not llo however wever e each ch of the ho radio compass stations noti notifies fles tile the central santion lit in whitehall teall street that lint a ship within the district Is il 1 mandzig to know its location linbo the ho central station radios tho the bewildered mariner ariner in to continue flach ing ills his call letters for cor sit at least thirty seconds and ami tit nt tin the some out 0 tile tho radio comp compress editions lonn bekin begin obtaining bea bearings ringa on the ho ship then its lt simple the operators tora lit in tile five avo I 1 turn their compass wheels until bitell has nn an accurate bearing these five readings are transmitted to tile contral oil station where on oil a huge chart the ive readings are combined rending reading will indicate n certain humber of 0 miles between the ship and tho me station that hint took the bet bearing tring it III t a relatively simple matter then to project these lines upon the chart until the five lines illicit intersect and point of 0 intersection la Is the locution of tile coiling calling ship acknowledgment front from the still completes the operation every 11 very Amer american lenn port pon is now being s fife guarded by just such systems of radio compasses slid and central stations within a few months at any point along the he coast marinero mariners marl ma nera will he be able to tip approach channels reefs and waters with nil absolute assurance ill hut a t they will not proceed too near nor yet exercise such grent great ca ution na as to throw them out of their caume coume anti and bius thus dilso la Is the lie r attending toe fog commander JI IJ n 11 co cod ff U S N la in superintendent of tho the beatral station nt at 4 11 1 whitehall street locut at IV arpa U 9 N Is 13 in direct chirgo of the new york dl district s |