I'm not sure what you're after here, but in the civilian world, airlines, charter operators, flight schools, large companies, etc., normally refer to their aircraft as a fleet. In the military, the smallest group of aircraft under the same operational control would be referred to as a squadron.
Squadron
A fleet.
A squadron, or a force, or maybe fleet.
The place where aeroplanes are housed is called a hanger.
Aeroplanes are kept in large sheds called 'Hangers'
Aeron
The collective noun for airplanes is a "fleet." This term is commonly used to refer to a group of airplanes belonging to the same airline or organization. It is similar to how we use "fleet" to describe a group of ships or vehicles.
Aeroplanes are kept in large sheds at an airport called Hangers.
It's called a hanger
The collective noun for a group of planes is a fleetof planes.
The collective nouns for aeroplanes are a flight of aeroplanes or a squadron of aeroplanes.
They are called airplane hangers.
Aerophobia, aviatophobia, aviophobia or pteromechanophobia.