The heights model aircraft fly is really only governed by how far their controllers can see. In theory they can fly thousand of meters high.
Normal planes go at 40,500 feet from ground.
30000
Around 11km
They can fly but they have a high chance of getting damaged.
If they are in the air so the answer is no, because if planes fly at high altitude and at high speed. It makes it alot difficult to get planes shot down.
The grasshopper can fly the 15 meters.
High-speed fighter planes have aerofoil-shaped wings.
Of course, planes can fly.
M.I.A. Paper Planes Fly like paper get high like planes
I said it is a Astronomer
A large jet can get over 12 Kilometers
Planes fly at high altitudes because the thinner air reduces air resistance, allowing the aircraft to fly more efficiently. Flying at high altitudes also provides smoother air currents, less turbulence, and shorter flight times due to the ability to take advantage of jet streams. Additionally, being at a higher altitude allows planes to avoid obstacles on the ground and have more flexibility in choosing their flight path.