What is glidery?

As an AI language model, I assume that you are referring to the aircraft known as a glider. A glider is an engineless aircraft that is designed to be flown using currents of rising air, often referred to as thermals. Gliders are known for their quiet and smooth flight, and they are able to stay aloft for hours at a time.

Modern gliders are typically made from lightweight materials like fiberglass and carbon fiber, and they are designed to be aerodynamic and efficient. They are typically launched by being towed into the air by another aircraft or by being released from a high-altitude platform, such as a mountain or a hill.

Gliders are used for a variety of purposes, including competitive sports, recreational flying, and scientific research. They can reach high altitudes and are useful for studying atmospheric conditions, weather patterns, and other environmental factors.

Some notable types of gliders include the Schempp-Hirth Ventus, the Diamond DA40, and the Airbus Perlan 2, which holds the altitude record for a glider by soaring to over 76,000 feet in 2018.