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A link-net restraint that provides comfort when the suit is unpressurized, as well as affording mobility (within the design range) when the suit is pressurized (linknet, exclusive to David Clark Company, is made from high-strength/lowelongation materials that enable the link-net to stretch, but only in specifically designed directions) An exterior cover that provides fire protection as well as protection from impingements such as abrasion and puncture
Jacobs described the baseline garment as the lightest-weight pressure suit that could meet the demands of the extreme stratospheric environment Baumgartner faced, and he assessed its breathable gas container as perhaps the biggest advancement in pressure suits over the past 25 years. The presenters added that, as is customary with these types of suits, aneroid controller hardware was obtained to work with the garment; while the controller was set to various levels during training and testing, Todd set it to maintain a pressure of 3.5 psi (equivalent to 35,000 feet [10,668 meters] in altitude) when the suit was pressurized during the October 14 mission. Baseline Helmet Baumgartner’s helmet needed to maximize protection from impact yet minimize head-borne weight. The David Clark Company state-of-the-art helmet used as the baseline for the Red Bull Stratos mission includes: • •
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An integrated visor-fogging mitigation system An integrated oxygen delivery system (including redundant regulators) that further aids mitigation of visor fogging and ensures carbon dioxide washout, while minimizing consumable usage Phase-change materials in the helmet liner that help to maintain thermal comfort (helping to keep the head cool when it’s warm and vice versa) A composite shell, which, along with the attenuation liner, provides impact protection while minimizing head-borne mass
Unique Design Specifications As mentioned above, the baseline state-of-the-art suit is designed in a sitting position, for use by a pilot in a cockpit/ejection seat. (McCarter pointed out that a Red Bull Stratos Scientific Summit
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