To do that properly, he needs a computer able to handle numeric tasks and fit in a small space in the loadmaster station beneath cabinets filled with electronics. In a non-operating mode, the device can withstand 30 Gs, and for this application, can withstand 45 Gs without falling apart or causing any system errors. The FOX is a 19.6-ton armored vehicle that swims through water and rolls around rough terrain at speeds as fast as 65 miles per hour. Jarring vibration, bumps and jolts are constant hazards for its electronic equipment. Enclosures for the COTS environment require parts manufactured to very tight tolerances.
Designers use special tools and processes to install seals and fit-flanged surfaces.
Moisture must stay out of the enclosure to prevent condensation. Dolch enclosures employ thick metal and use flanges and seals to withstand high velocity dust and water streams. Because of the tight enclosure space that is environmentally sealed, the design dissipates heat efficiently to increase its operational life. As a system, the ambient temperature inside the unit must be uniform and dissipate through the metal enclosure. Typical mean time between failure of the backlight is 20,000 hours.