An anti-air Trap
The GCI Radar Trap operates against air and hover units. Place it to compliment other anti-air, and anti-hover apparatuses, to defend your base against fighters and bombers!

How it Works
The GCI Radar Trap summons an Interceptor airplane to counter incoming attack aircraft. The GCI Radar has a radius which, when entered by enemy aircraft, triggers an Interceptor to attack the enemy planes and helicopters! You can recharge the GCI Radar with Oil.