Traditional Culture Encyclopedia - Photography major - What are the precautions for skydiving?
What are the precautions for skydiving?
In the free fall stage before opening the umbrella, the different angles of the body facing the wind can directly affect the speed and direction of landing. For example, in a dive posture (not 90 degrees vertically downward), the body will move in the direction of the head, and its principle is similar to that of an airplane elevator. The closer the windward side of the body is to the ground, the faster the speed will be.
If you crawl down and stay level with the ground, the farther your arms and feet are from the trunk, the greater the wind resistance, and your body will rotate to that side.
Precautions for skydiving
The paratroopers jumped off the plane at a specified height and controlled the parachute to land in a predetermined area. The skydiving height is not less than 700 meters. When skydiving, set jumping targets on the ground and mark the landing area. Measured by the distance between the paratroopers' first landing point and the nearest edge of the bull's-eye, the closer they are to the bull's-eye, the better their performance.
Stepping on the bull's-eye is 0 meters (commonly known as "stepping on the spot"), and the result is the best. There are individuals and groups, in which group means that many people jump off the plane on the same route above the jumping target and land on the same jumping target. The competition is conducted for several rounds, and the sum of the fixed-point distances in each round is the paratroopers' (or teams') achievement, and the least one wins.
Refer to the above? Baidu encyclopedia-skydiving
- Related articles
- Chengguan Town, Yongdeng County, Lanzhou City
- Why is Sherlock so popular?
- 20 19 what is the best mobile phone? What is the leaderboard?
- Can I use a digital camera to take pictures of the solar eclipse?
- How to take beautiful full moon photos of your child?
- What studios does Disney have?
- Hangzhou 2-day self-help tour introduction
- Children photography branch reception desk
- Which is more suitable for netizens, vivoX80Pro or oppoFindX5Pro?
- Carl zeiss lens comes with autofocus function?