Guys, you're starting to worry me. I'm running out of clues but, thankfully, I still have a couple more:
1) This pilot's skill was legendary
2) The plane he flew was considered obsolete when he flew it
3) This pilot was grounded immediately after his last and most famous combat sorties
4) After being grounded, this pilot was medically retired and lived a long life.
5) Even though it's been reported incorrectly that he had help, he attacked and destroyed his first target in this battle and assisted in destroying a second later in the day, only to be grounded afterward due to lung damage
6) This pilot was awarded the DFC AND Navy Cross for his actions during the day in question
7) This pilot is the only one in history to have accomplished this feat in combat.
8) This pilot's actions helped determine the outcome of a historic battle
9) This pilot's actions helped avenge his country's worst ever defeat
10) Upon his death, this pilot was buried at a national landmark
11) This pilot's military aviation career started in biplane fighters
12) This pilot spent his entire combat career flying from one "base"
13) This pilot was one of only four to get home with an aircraft deemed to be "in flying condition" in his second to last sortie
Good Luck