Hmm, so easily...
Try to find out that information from mebers of this Forum:
Boris Ciglic,
Larry deZeng, and especially from
markojeras. They all are familiar with CAF ace capt. Mato Dukovac.
After you receive informations from them, correct your mistakes in my mentions 1./2./3. And, you hawe to impress me, because even in Israel AF in 1948. there was no secret that Mato Dukovac fly in CM against them.
Good luck...