Soyuz landing

Soyuz landing

Soyuz landing. Left: four parachutes, deployed 15 minutes before landing, dramatically slow the vehicle’s rate of descent. Two pilot parachutes are the first to be released, and a drogue chute attached to the second one follows immediately after. The drogue, measuring 24 square meters (258 square feet) in area, slows the rate of descent from 755 feet (230 meters) per second to 262 feet (80 meters) per second. The main parachute is the last to emerge. It is the largest chute, with a surface area of 10,764 square feet (1,000 m2). Its harnesses shift the vehicle’s attitude to a 30-degree angle relative to the ground, dissipating heat, and then shift it again to a straight vertical descent prior to landing. The main chute slows the Soyuz to a descent rate of only 24 feet (2.3 meters) per second or 8.2 km/h, which is still too fast for a comfortable landing. One second before touchdown, two sets of three small engines on the bottom of the vehicle fire, slowing the vehicle to soften the landing. Right: Russian support personnel with the Soyuz TMA-22 capsule shortly after landing.

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