ocr: 59 Or VIKING 1AND2 LANDER EQUPEMENTE The second unit in the landing system is the parachute, designed to slow the lander in the lower atmosphere. The parachute measures 16 meters in diameter and 29.5 meters long; it weighs 50 kilos. It is composed of two circular rings, called the disk. and the belt: separated by a67-centimeter opening. The disk, the inner ring, has a surface area of 109 square meters. The parachute is attached to the lander with 48 Dacron suspension lines, 27.4 meters in length. During the final descent phase, three 18-ejector engines, providing a variable thrust of 28 to 209 ...
