As soldiers get bigger and packs get heavier, a parachutist and load can weigh as much as 490 lbf. The standard 28-ft parachute
may descend too fast for safety. For heavier loads, the U.S. Army Natick Center has developed a 28-ft, higher drag, less porous XT-11 parachute. This parachute has a sea-level descent speed of 16.9 ft/s. What is the drag coefficient of the XT-11 for a maximum load of 490 lbf? Round the final answer to three decimal places.
