Is there a formula to calculate the size monitor needed for the cockpit to be actual real life size? Would need to consider resolution and fov.
Resolution has no effect, only the width of the monitor.
FOV = Field of view angle. (horizontal field of view)
W = width of monitor
D = distance of eyes to monitor.
For the your view to match the real world, the distance to the monitor is calculated by.
D = W / (tan(FOV / 2) * 2)
This is effectively turning your monitor into a window.
HiTech