The basic unit available for free at the first level, as the startup plane. For countries like the USA, Germany and the Soviet Union developed from level 1 to 10. Its characteristics are low durability, small engine and bombs and rockets available only for several models. Its basic weapon is the machine gun, the higher the level the bigger caliber and places for mounting. The advantage is its speed and maneuverability that can be useful for elimination of other aircraft by surprise from behind. It is weak against ground targets and heavy fighters
The type of aircraft available from level 2 for the USA and Japan. The purpose of the plane is to perform swift actions that allow you to surprise the enemy. The disadvantage is its low durability. Its swiftness and maneuverability make it good for the elimination of enemy bombers and slow planes. As long as it has no access to bombs, it is weak against ground targets.
Only for the Soviet Union. It is quite slow and has low maneuverability which makes it vulnetrable to enemy fire coming from faster and more maneuverable planes. It makes up for this shortcoming by durability, which allows for extended lifespan in the battle. This type of aircraft, with access to bombs and rockets, is very god against ground targets. Using its durability and firepower, you can destroy key enemy buildings in a short period of time and survive until reinforcements arrive.
Available for Germany only. The downside of this aircraft is its maneuverability. Still, its firepower and the possibility of attaching bombs make it good against ground targets. It also has a tail gunner. Deals well with slow enemy planes.
The type of aircraft available only for the select countries. Obtainable for premium tokens only. Regardless of its level, it comes with good statistics. The most important feature of this type of planes is that they receive a lot of credits per battle.