This is what happens when we accept work from third parties without checking every last frigging detail.

And this is why we don't do that any longer.
That aircraft is a prototype. It shouldn't even be in the OOB as there were only two in existance and the project was cancelled in the Spring of 1939 with both prototypes captured by the Germans "in a damaged state"
On top of that the 20 mm cannon that somehow got turned into a 1000 pound bomb was only "Planned" it was never installed in either prototype.
Sometime in the next week or so I will decide if we are going to ignore it until we issue another patch sometime in the future and recommend it not be used or issue a corrected OOB. I think all the aircraft in pre 1939 Poland needs a good looking at and maybe building a "prototype aircraft" formation using UC 243
For now, don't use it
Don