Dogfighting shouldn't be allowed to be this cute.
The controls are smooth and easy to grasp. The gray skybox does allow for visibility, so that's a nice touch. Really cool that you were able to provide a working air-to-air combat system. With mythical girls in a mythical location and a mythical aircraft that was never meant to fly, crafted by someone with mythical modeling skills. I want to say that the plane isn't maneuverable enough, but that might just be me not wanting to move the camera around too much in light of my own tendency for motion sickness.
Also, re: the bug with hanging bullets, Sakuya needs to chill.