One of my historical planes that I've been making recently. I really love how this turned out. Has a functional ball turret and a weapons bay containing bombs.

Controls
AG1: Activates the weapons bay. Turn the VTOL slider up to open it and drop the bombs stored within.
AG2: Turns on the turret controls. Use the pitch and roll to control the ball turret. The VTOL controls can also be used to turn the turret 180 degrees to both directions, so the turret can point forward. Be sure to turn off AG8 first to turn of the wing control surfaces so the plane doesn't move when aiming the turret and AG1, so the plane doesn't blow itself up when using the VTOL slider. While in this mode, you can crudely control the plane, using yaw to roll and trim to pitch, so you don't have to switch back to the other mode to do every minor alterations to the course during flight. (This works with sets of 2 hinges attached to the horizontal stabilizers. If you have a better way to implement this, please let me know) It is a bit easy to shoot off your vertical stabilizer and the engines, so be careful. Also aiming down too far down will break it.
AG5: Drop all bombs at once. Be sure to have opened the weapons bay through AG1 first.
AG8: Turning this off turns off the control surfaces on the wings, so the plane won't move as you control the turret.

Feel free to comment suggestions for improvements.