ARC-2009-ACD09-0053-013

Mars Science Laboratory (MSL) parachuste test in the NASA Ames 80x120ft Subsonic Wind Tunnel at Moffett Field, Calif. (TR #22 - Phase 6) is the largest ever built to fly on an extraterrestrail mission. This image shows a duplicate qualification-test parachute inflated in a 80-mile-per-hour (36-meter-per-second) wind inside the test facility. It has 80 suspension lines, measures more that 50 meers (165 feet) in lenght, and opens to a diameter of nearly 16 meters (51 feet). Most the the orange and white fabric is nylon, though a small disk of heavier polyester is used near the vent in the apex of the canapy due to the higher stresses there. It is designed to survive deployment at Mach 2.2 in the Martian atmosphere, where it will generate up to 65,000 pounds of drag force.