are professional competitions held for this?
Yes, world and European Aerobatic competitions are held regularly
Gliding
World and European Aerobatic competitions are held regularly
how long do gliders stay in the air They can stay airborne for several hours. what is gliding? It is a recreational activity and competitive air sport in which pilots fly unpowered aircraft known as gliders or sailplanes using naturally occurring currents of rising air in the atmosphere to remain airborne. who created the first glider? The Germans when? In  the 1920s and 1930s how do they fly? Through air that is ascending as fast or faster than the glider itself is descending, thus gaining potential energy. what's the fastest they can go? UNANSWERABLE so you mean they use lift to fly? Yes, ridge lift, wave lift etc. how are they launched? Different methods, namely aerotowing, winch launching, bungee launch etc. what's the maximum distance they have flown? Up to 1,000 km what do you do to land? The pilot will 'land out' - choose a location where he can land safely without damaging the glider, the pilot, or property such as crops or livestock. has anybody thought of using an engine on them? Yes, some gliders are fitted with small power units and are known as motor gliders. is this considered a sport? Yes, a competitive air sport
wiki:14186562
Gliding [SEP] Aerobatic competitions
World and European Aerobatic competitions are held regularly. In this type of competition, the pilots fly a program of maneuvers (such as inverted flight, loop, roll, and various combinations). Each maneuver has a rating called the "K-Factor". Maximum points are given for the maneuver if it is flown perfectly; otherwise, points are deducted. Efficient maneuvers also enable the whole program to be completed with the height available. The winner is the pilot with the most points.