Project Excelsior was set up with Joseph Kittinger Jr. as test director. Francis Beaupre, a technician at Wright Field working on the Excelsior Project, devised a parachute system that would safely enable pilots to eject from high altitudes. His system, called the Beaupre Multi-Stage Parachute, consisted of a stabilizer parachute that would prevent uncontrolled spinning and tumbling at high altitudes. A timing and altitude system automatically deployed both the stabilizing and main parachutes at the appropriate moments to ensure the safe and controlled descent of the pilot or astronaut.
As Project Excelsior didn't have the resources to use high performance aircraft to test the new escape system, a balloon gondola was designed and built by the staff at Wright Field to carry the pilot to the desired altitudes for the tests. The balloon held nearly 3 million cubic feet of helium to lift the open gondola high into the stratosphere. Kittinger made three high altitude parachute jumps from the gondola using the Beaupre-designed parachute system. On November 16, 1959, Kittinger made the first jump from Excelsior I at an altitude of 76,400 feet. During Excelsior II, the second test on December 11, 1959, he jumped from an altitude of 74,700 feet. On the third and last jump in Excelsior III on August 16, 1960, Kittinger jumped from a height of 102,800 feet, almost 20 miles above the earth. With only the small stabilizing chute deployed, he fell for 4 min. 36 sec. He experienced temperatures as low as minus 94°F and a maximum speed of 714 mph, exceeding the speed of sound. The 28-foot main parachute did not open until Kittinger reached the much thicker atmosphere at 17,500 feet. Kittinger safely landed in the New Mexico desert after a 13 min. 45 sec. descent. Project Excelsior successfully proved the new parachute system would solve the problem of high altitude escape by crewmen.
Related categories MANNED SPACEFLIGHT
SPACE AND AEROSPACE MEDICINE
Source: National Museum of the USAF
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