The most amazing skydiving in the world

The most shocking skydiving in the world is the high-altitude skydiving challenge held by 217 people in Arizona, USA.

They jumped from an altitude of about 5,800 meters and rushed to the ground at a speed of 193 kilometers per hour. After a few seconds of free fall, they formed a flower-shaped pattern in the air, then changed their formation and formed a Three layers of circles form a magnificent pattern in the air, setting a new world record. Free fall has been attempted up to 4 times before, but all failed. This skydiving challenge not only tests the courage and skills of the skydivers, but also demonstrates the limits and innovative spirit of mankind.

British brave Fraser Cosan hopes to break four world records: highest altitude, highest speed, farthest distance and longest flight time with two daring jumps. Kesan will complete the jump from a hot air balloon at an altitude of 40,000 feet (12,100 meters). In 1797, balloonist André Jacques Ganelin climbed 2,000 feet (610 meters) above Paris' Monceau Park in a hot-air balloon, cut the balloon open, and landed on an umbrella-shaped silk parachute.

The skydiving process

The skydiving process mainly includes leaving the plane, free fall, parachute deployment, landing and landing. The method of leaving the aircraft is divided into door escape and ejection escape. Paratroopers who parachute usually jump out from the cabin door, and pilots who are forced to parachute usually ejection escape. Free fall is the movement of a skydiver from leaving the aircraft to before the parachute deploys. After the parachutist leaves the plane, affected by the flight inertia and gravity, he moves horizontally and vertically downward in the direction of flight, and the movement trajectory is parabolic.

Umbrella opening means that the canopy opens under the action of air. The parachute opening procedure is usually to open the parachute bag, guide the umbrella to work, pull out the main parachute canopy from the guide parachute, open the canopy bag until the canopy is opened. The opening time is generally 3 to 4 seconds (the second-level parachute opening is 7 seconds). At the moment when the parachute is opened, the speed of the skydiver suddenly decreases, resulting in an impact force to open the parachute. The magnitude depends on the falling speed, the total weight of the parachutist and the duration of the parachute opening, and generally does not exceed 12 kN. After the parachute is deployed, the parachutist descends steadily and slowly.

The vertical landing speed is related to the total weight of the skydiving, air density, canopy area and canopy resistance coefficient, etc. It is generally about 5 meters/second, and it also has a certain horizontal movement speed. During the descent, the skydiver can control the parachute to change the horizontal direction and speed of the parachute to land at a predetermined location. In order to ensure the safety of skydiving, skydivers must be organized to undergo ground training before skydiving, including skydiving theory learning and skydiving action training. After passing the skydiving, skydiving can be carried out.