Aircraft

Lvl 1 Aviafactory
Cyclone (Helicopter)

Lvl 2 Aviafactory
Vertex (Fighter jet, requires Airfield)

Lvl 3 Aviafactory
Thor (Bomber, requires Airfield)

Lvl 1 Aviafactory
Dragonfly (Helicopter)

Lvl 2 Aviafactory
Hawk (Fighter jet, requires Airfield)

Lvl 3 Aviafactory
Albatross (Bomber, requires Airfield)