It's entirely possible that they flew Hurricanes during the BoB and their squadrons later switched to Spitfires.
Thats the one.
All Poles were flying Hurricanes (inferior planes) through all of BoB, Spitfires were reserved for brits.
You told me a few years ago that they were flying in Spitfires, your uncles that is
Piece together posts on this page,not by me,and you get your answer.a hint, Pilots didnt just fly one type of plane throughout the war :)
When Pilots flew in France,then The BofB then the Western Desert then Italy,Normandy etc etc .....
So,anyway, whats funny is,if you google Top Scoring Battle of Britain Aces this thread comes up with the outright lie that two Pilots in 303 sqdrn were the top scorers........check any other source and its clear that 3 Brits were the top three,then a Czech then two Kiwis followed by another Briton then in 8th place is the first Pole, Urbanowicz.
Whatsmore,of the Top 5 aces 3 were flying Hurricanes during the Battle. In the top 10 ,7 out of 10 flew Hurricanes