National Geographic : 1957 Feb
281 + Flight Surgeon, at His Desk Aloft, Coaches the Balloonists by Radio From aviation, in which he piloted Army Air Corps planes and commercial airliners, Captain Barr turned to medicine. Graduated, he became a naval aviator and flight surgeon. In this laboratory plane Captain Barr tape-recorded the Lewis and Ross heart and breath actions broad cast from the balloon. Here he is advising them not to parachute into the South Dakota Badlands. - +At a window of his plane, Captain Barr strains for a sight of the terrain toward which the balloon is drifting. ,,|er F. Sisson. National Ge(oraphic Staff It could not be jettisoned in the normal fashion, but it could be blown out. Now Mal closed a switch, and dynamite caps tore holes in the bottoms of the containers. At 17,000 feet, when outside air pressure equaled interior pressure, the hatch covers popped open. A quick glance below revealed that we were over desolate terrain, and we began heaving things out: oxygen converter, instrument panel, radio, trays of chemical absorbents, oxygen analyzer, air regenerator. Most of the equipment had been bracketed down in a manner that facilitated easy re moval during an emergency. But some pieces simply had to be uprooted and torn out. When the air regenerator went overboard, we sprawled near the hatch, completely jaded, and watched it fall with small-boy interest.