BAFF - British Air Forces in France :
AASF - Advanced Air Striking Force: a bomber force within range of German industrial targets
RAF component: whose mission was to provide reconnaissance and fighter cover to the British expeditionary force.
Their numerical strength (serviceable aircraft available) :
AASF : Bombers -126
Fighters - 28
RAF component: Bombers - 55
Fighters - 57
Army cooperation - 76
Total : establishment - 408
serviceable – 342
Although the numbers seem small it is actually a significant contribution from the RAF. The BAFF is 38% of serviceable RAF combat aircraft.
The problem for the RAF is that it is simply too small to fight on even terms with the Luftwaffe in the Battle of France.
Source : AIR 22/32 ‘’War Room Daily Strength Returns’’