Show army flyers test out new devices aviators above clouds by instruments dayton nugene barks dolo dalo and bradley jones who made the record nonstop non stop night ot of 8 hours 43 minutes for the miles from me ble cook held field dayton ohio to Alit mitchol ellel field tit at All myneola neola recently rando fiade their return trip anthe army navigation plane mr jones la Is navigator in the ilig flight lit he fae Is instrument engineer tit nt mccook field and has devoted much time to tile perfection of instruments which will make long distance flying safer and more accurate sir mr jones said that the flight record was waa of secondary importance calls device tho reul real object of the trip was to test on a long flight our two new ln in st tho the earth inductor compass and the flight indicator said mr air jones these instruments have been in process of improvement and testing for fop about a year by tho the army aviation staff and they ore now deemed satisfactorily facto rily perfect to bo be made tor for general uso use in the alie go government yern ment aviation service the only thing lacking Is an appropriation to make inake them tile tho first miles or of the journey was above the clouds that was just what we wanted for the lie instrument test so its as to be cut oil off from landmarks such as rivers or railroads we rose above the clouds clouda at once after leaving dayton we practically did not see sec tho the land again until after crossing tile the susquehanna river arver in pennsylvania the purpose of the flight indicator Is to shiow the pilot whether lie he Is on a level course in making a perfect spiral or turn there Is no loss of balance but it Is difficult to tell whether tife the plane piano Is skidding or slipping off of the true balance except under extreme conditions the flight indicator shows the pilot whether whet lier lie he Is on the true bal once ance or not it Is worked on the gyroscopic ic principle the instrument Is about five indies inches in height by 11 inches wide and fixed to file dashboard at tho the top Is a needle which turns to tile the left and right showing tile direction level below that Is 11 glass tube tubo containing it steel bull ball which sags to the sido toward which tile the piano Is tipping compass aids pilot below tile tube tuba Is an indicator to show tile angle of the downward or upward flight tile the earth inductor complies compass which has also been tried out for several months was used for the first time in a long light flight in the recent trip it Is placed on tile the tall of tho machine to void avoid magnetic attraction of the motor and Is connected by wires to an indicator on the pilots dashboard the compass enables tile alie aviator to keep it straight course without observing landmarks I 1 marks and mr air jones said its value was clearly proved on tho the trip from dayton as after miles the plane was only eight malea oft off its exact course when it reached tho the susquehanna mr jones said bald that a third inspru anent it a sextant nr timing ranged cil to give n correct horizon so BO that tho the exact loen tion of tile piano may bo known similar to tile tho taking inking of latitude and longitude also was tested on the fil flight glit tho aviator according to mr jon jones never sees tile natural horizon duo to tho the haze and topographical leni cond conditions Rions |