Sky Fortress

The Airborne Fortress is the very first giant aircraft in the history of the Ace combat series. It was featured in the game Air Combat, the very first installment of the series.

Information
Little is known about the Airborne Fortress, based on its apperance it looks like the mix of the XB-0 Hersvelg and the Gleipnir. It's propelled by four engine (which contains 6-8 engines each). It has very few armaments of AA guns and SAM's, although it's lightly armed it is still a very dangerous target to deal with.

How it got to terrorists hands are not known.