
S70-56965 (December 1970) --- Drawing of the newly developed Buddy Secondary Life Support System (BSLSS). The life-sustaining system will be provided for the first time on the Apollo 14 lunar landing mission. The two flexible hoses, to be used on the second Apollo 14 extravehicular activity (EVA), will be among the paraphernalia on the Modular Equipment Transporter (MET) or two-wheeled workshop, and readily accessible in an emergency. During EVAs the Portable Life Support System (PLSS) supplies the astronaut with breathing and suit-pressurizing oxygen and water flow for the liquid-cooling garment -- a suit of knitted long underwear with thin tubing woven in the torso and limbs. The tubes carry water from a reservoir in the PLSS, and the circulating water serves to carry the astronaut's metabolic heat to a heat exchanger in the PLSS. Before the BSLSS was devised, the emergency tank was required to furnish not only suit pressure and breathing oxygen, but also cooling through a high oxygen flow rate. The BSLSS, by sharing the water supply between the two crewmen, stretches the time of the emergency oxygen from about 40 minutes to 60 to 75 minutes.
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NASA ID
S70-56965
Date Created
December 22, 1970
Center
JSC
Media Type
image
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Artist's concept of oxygen tanks of the Apollo 14 spacecraft
Jan 12, 1971
Line drawing of Apollo 14 Command/Service Modules
Jan 12, 1971
Drawings of the Modular Equipment Transporter and Hand Tool Carrier
Oct 12, 1970
Artist's concept of Apollo 14 crewmen on their firs traverse of lunar surface
Jan 11, 1971