"AT 30,000 FEET": SEAFIRES BRING HIGH ALTITUDE FLYING TO THE NAVY. 20 TO 23 JULY 1943, AT THE HEIGHTH OXYGEN CHAMBER AT FLEET AIR ARM STATION, MACHNIHANISH. THE ACQUISITION BY THE NAVY OF SEAFIRE FIGHTERS MEANS THAT HIGH ALTITUDE FLYING NOW COMES WITHIN THE SPHERE OF FLEET AIR ARM PILOTS. BECAUSE THESE ALTITUDES PUT SEVERE STRAINS ON THE PILOTS, SPECIAL TESTS ARE CARRIED OUT IN SEALED PRESSURE CHAMBERS TO FIND OUT IF A FLEET AIR ARM PILOT IS SUITABLE FOR HIGH ALTITUDE WORK. INSIDE THE CHAMBER FOUR PILOTS ARE TAKEN TO THE PRESSURE EQUIVALENT OF 30,000 FEET AND TASKS WITH AND WITHOUT OXYGEN ARE
"AT 30,000 FEET": SEAFIRES BRING HIGH ALTITUDE FLYING TO THE NAVY. 20 TO 23 JULY 1943, AT THE HEIGHTH OXYGEN CHAMBER AT FLEET AIR ARM STATION, MACHNIHANISH. THE ACQUISITION BY THE NAVY OF SEAFIRE FIGHTERS MEANS THAT HIGH ALTITUDE FLYING NOW COMES WITHIN THE SPHERE OF FLEET AIR ARM PILOTS. BECAUSE THESE ALTITUDES PUT SEVERE STRAINS ON THE PILOTS, SPECIAL TESTS ARE CARRIED OUT IN SEALED PRESSURE CHAMBERS TO FIND OUT IF A FLEET AIR ARM PILOT IS SUITABLE FOR HIGH ALTITUDE WORK. INSIDE THE CHAMBER FOUR PILOTS ARE TAKEN TO THE PRESSURE EQUIVALENT OF 30,000 FEET AND TASKS WITH AND WITHOUT OXYGEN ARE PERFORMED. - The Fleet Air Arm fighter pilots taking a high altitude test: One of the pilots passed out after 90 seconds without oxygen. His supply is turned on again by a second pilot. The medical officer can see through the plate glass window at the back of the pressure chamber
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