Scaled Composites took the idea to a new level with the custom White Knight mothership it built to carry SpaceShipOne to feet. The rocket then launched away to become the first private craft to carry people into space in
The gigantic real Convair Peacemaker super-bomber was the largest bomber ever built by anybody. 300 or so in fact, they were never actually used in combat. Defensive armament of 8 twin retracting gun-turrets payload of 40 tons in twin massive bays.