Show device shows strain incurred by flyers instruments have hae been demised for measuring an airplanes speed altitude and direction now comes it a gouge for the aviator himself called the hie accelerometer an intricate little apparatus which shows how ills body reacts to the crafts bounces sudden turns and dips it Is the invention of I 1 aleut leut james 11 doolittle of the en gi division of the army air service according to popular me ale chunks magazine and it Is placed un ler der tile the pilots seat stresses und find strains on ills his body are outlined on a small strip of film lieutenant doolittle hns has found that a 11 flyer can stand instantaneous move of the plane without ill effects but comparatively slower dips dip and of continued several seconds sometimes cause him to lose ills bacul cli in rounding a pylon at high speed for instance the ali e blood Is driven to the feet A pilot in the lie pink of condition can stand tills this but about 12 seconds Is tile the limit |