I don't think there's ever been a Luftwaffe IL-2, and Feuerpöwer is not a Kraut word. It translates as Feuerkraft, which is not really a German word either.
Durchschlagskraft, Mannstoppwirkung, Reichweite or Gefechtswert among other syllable crunching Teutonicisms are more current terms.
I can't imagine the third reich naming any airplane "pig farm worker".
“I am not one of those weak-spirited, sappy Americans who want to be liked by all the people around them. I don’t care if people hate my guts; I assume most of them do. The important question is whether they are in a position to do anything about it. My affections, being concentrated over a few people, are not spread all over Hell in a vile attempt to placate sulky, worthless shits.” - William S Burroughs