National Geographic : 1957 Feb
Helmeted Aeronauts, Shortly before flight day the pilots strapped on para chutes, climbed into the gondola, practiced take-off procedures, and went over check lists. They were pho tographed with an ultra wide-angle plastic lens, only one of its kind, made by a General Mills engineer to scan balloon interiors. Strato-Lab's gondola is a forerunner of space cabins. Its equipment feeds an oxy gen-enriched atmosphere to the pilots and maintains an atmospheric pressure equivalent to 17,000 feet. Chemicals remove carbon dioxide and water vapor. Diagram identifies men and instruments. Radio equipment is not in view. 275 Thomas J. Abercromhie, National Geographic Staff Seen Through a Hatch Cover, Take a Dry Run into Nowhere 1. Lieutenant Commander Lewis. 2. Bottom hatch. 4 -3. Observation porthole. 4 4. Operating charts and S\ 5. Air-circulation fans. S6 6. Instrument panel: 2 clock, altimeters, rate O \\ of-climb indicator, and temperature gauges. 8 6a. Wallace & Tiernan 9\ precision altimeter. 7. Carbon-dioxide ana 1 lyzer. S8. Control panels. 9. Lieutenant Commander Ross. 10. Recording unit for gamma-ray telescope (removed before flight). 11. Oxygen converter. 12. Air regenerator.