- Targeting Fortress - remove 4 hi-res, upgrade VMG to HD-Incen., add Infrared and 4 cyberlinks, no cargo: $244,950
- Bomb Fortress - remove gunners, replace with computer gunners, ammo regular, remove IFE, add 9 bombs, 2 cluster bombs; no cargo; $204,150
- Fortress Deluxe - add CACR, RL back with computer gunner, $233,500
- Laser Fortress - upgrade MGs to LLs, VMGs to Lasers, add 3 laser batteries in cargo space, 1 cargo space left with 300 lbs. capacity, $212,200
Name Notes - The original name was "Flying Fortress" and was named for the WWII era B-17 Flying Fortress, which was festooned with 50 cal. machine guns (no Vulcans, yeah, but I couldn't resist) and famously had a belly cupola. According to the Wiki, the armament was: "13 × .50 in (12.7 mm) M2 Browning machine guns in 8 positions (2 in the Bendix chin turret, 2 on nose cheeks, two staggered waist guns, 2 in upper Sperry turret, 2 in Sperry ball turret in belly, 2 in the tail and one in the nose)"