The Hangar is where you store and upgrade your active planes. You can choose which aircraft from your fleet should be placed in your hangar. Planes can be freely swapped between available hangar slots by selecting a plane from the progression tree and choosing which one to replace at the bottom of the screen.

The planes assigned to your hangar slots are the ones actively used in battles. Each slot allows you to deploy an additional plane when your previous one is shot down. You can unlock up to 5 hangar slots, allowing you to prepare and bring up to 5 planes into battle.

You can also set the order in which your planes will spawn during combat, determining which aircraft appears next when one is destroyed.