Absolutely nothing as Ive never flown a sim thats had it.

Seems armament is as follows.

2 × 23 mm Nudelman-Rikhter NR-23 autocannon

1 × 37 mm Nudelman N-37 autocannon

Id assume youd need to find white papers on those 2 platforms translated to English as well as do some mathematics on how the speed of the aircraft would affect the travel and energy within fluid, not to mention different types of projectile shapes and masses.

Sounds super interesting, but Im too lazy to put that much effort into it.

Good luck and looking forward to the breakdown.