Show radios plane trouble A new device an automatically to mati cally radios the performance of 10 dd different parts of a P plane I 1 no during a test flight to a ground in machine achin e which records record the data on co sound film filin and disks and then makes make graphs for f r visual study in it a matter atter of seconds cond says collier a 3 thus nys it not only enables bles th the ground men to warn P pilots of of d incipient trouble but its records record a check and supplement implement t those hose of the pilot and are not lost in case of a cap |