Similar to the double tap when using free cam. This will allow us to zoom in on the aircraft from far away while in flight. Note, this is different from zooming in using normal/locked. Using the double tap zoom preserves the true dimensions of the aircraft. That doesn’t happen using normal/locked because the camera itself moves closer, distorting the aircraft. Additionally the ground below the aircraft would appear to move by much faster.
Zooming in using normal:
Zooming in using double tap in free:
The ability to do this while flying would be great. I don’t think it would be hard to implement because it already exists for free cam.