The valuable and precious original WWII fighter planes used and flying in this movie were not destroyed! For the crashing and destruction scenes they used remote controlled model aircraft, props and CGI. Get Your facts correct!
Keeping the last still existing airworthy WWII airplanes in flying condition requires a LOT of money and a lot of (volunteer) work, so their owners and a very dedicated warbirds community would never allow to crash a real one for a movie!