Their tactics were distinct. While the RAF "Tally-Ho!" was a standard call to engage, the Poles had a different signal. When they spotted the enemy, they simply called out "Atakuuję!" (I am attacking!). There was no hesitation.
Over the next month, the "Kościuszko" Squadron (named after the Polish and American hero Tadeusz Kościuszko) tore through the Luftwaffe. battle of britain 303 squadron
During the peak of the battle, 303 Squadron shot down in just 42 days. Their tactics were distinct