Its called a stubby stirling because its a bit chunky and has a 12,000lb payload as 24 X 500lb bombs. It also has a few controls (Group 1 and 4 are controlled by UP on the VTOL) which are the Bomb Bay (Group 1), Horizontal turret movement (Group 2 + VTOL and Controls All Turrets), (Camera 1=Rear Turret, Camera 2= Front Turret and Camera 3= Mid Turret) Vertical Turret Movement (Group 3 + VTOL). Next is Landing Gear (Group 4) and finally Group 5, 6 & 7 are the bomb rows 5 being the first for you to drop and 7 being the last. This just stops bombs being trapped by other bombs so the plane doesnt blow up (Which is normally bad). This is a heavy bomber so use the 24 bombs to blow anything and everything up so have fun with it