What is an aerospace vehicle

All kinds of vehicles capable of controlled flight within the atmosphere are collectively called aerospace vehicles (space vehicles), which simply means instruments that fly in the Earth's atmosphere.

Vehicles are divided into three categories: aircraft, spacecraft, rockets and missiles. Those that fly in the atmosphere are called aerial vehicles, such as balloons, blimps, and airplanes. They lift off and fly by the static buoyancy of the air or by aerodynamic forces generated by the relative motion of the air.

Those that fly in space are called spacecraft, such as artificial Earth satellites, manned spaceships, space probes, space shuttles and so on. They are propelled into space by a launch vehicle to gain the necessary speed and then rely on inertia to make an orbital motion similar to that of celestial bodies.

Expanded Information:

From the research and development programs of various countries for the development of the space shuttle, the The primary driving force for the development of air and space aircraft is military demand. Flexible and maneuverable, with a high cost-effectiveness ratio and high flight speed, an air and space aircraft can perform many tasks that cannot be performed by other equipment.

It has a fast response time, and within two hours of taking off from a country's mainland, it can reach any part of the earth to attempt combat missions. For a major country that needs to protect its interests on a global scale, a space plane can quickly respond to a crisis in any region and launch a surprise attack on the enemy.

At present, the scope of airspace is limited to a height of less than 100 kilometers in the relevant international treaties, while the space above 100 kilometers is the "public space", which can be flown freely by the aircraft of all countries. Airplanes can first climb above 100 kilometers when carrying out military missions, flying over other countries without causing international disputes, and then lowering their altitude after arriving at a war zone.

Baidu Encyclopedia - Aerial Vehicles