A try of making [Quad 3500mm Siege Artillery] from EVE Online in Simple Plane.
This big guy still has tons of defects, and I hope someone can complete this base on this work......Or make another better one by yourselves

Known imperfections:
1. Recoil is not yet applied
2. Every parts' weight and drag are modded to 0
3. Most of its raising angles are useless since there's nothing to shoot at
4. There are some small flaws on the armour
5. The siege module is not yet made
......And more to go

You may find out that the turret's appearance is different with the one in game, it is because this work is based on an early CG instead of gameplay.

This turret can be run on mobile devices, AND is editable as the barrel length is decreased.

It is possible to shoot the Snowstone Island from Wright Airport, and it is able to destroy everything in the original game in a single hit.

VTOL - Turn the turret
Trim - Change raising angle