I think there could be more problems with replacing the number of experienced pilots that became casualties (either killed or so seriously disabled that couldn't return to service). But here apparently Britain also had an advantage over Germany because some 20% of all pilots that participated in the battle of Britain were foreigners.
However, of course large part of those foreign pilots - namely those from British colonies and dominias - could be there mainly thanks to the so called British Commonwealth Air Training Plan. Britain had been training pilots from her colonies and dominias - for example Canada, Australia, etc. - and participating in development of their Air Forces.
Anyway - those reliable foreigners were increasing the British potential of trained pilots by ca. 1/4 (1878 + 489 foreigners).
On the other hand, Germany probably could not rely to the same large extent (+ 1/4 more) on potential of her allies.
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Number of Allied pilots that actively participated in the battle of Britain:
British - 1878 (of them 348 died)
Poles - 141 (of them 29 died)
Canadians - 88 (of them 20 died)
Czecho-Slovaks - 88 (of them 8 died)
New Zealanders - 73 (of them 11 died)
Belgians - 26 (of them 6 died)
Australians - 21 (of them 14 died)
South Africans - 21 (of them 9 died)
Free French - 13
Irelanders - 8
Americans - 7 (of them 1 died)
South Rhodesians - 2
Palestinians - 2
Total: 2367 (of them 446 died)
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Probably Germans had even more problems with irrecoverable losses in pilots. Apart from killed and seriously wounded, while fighting over British territory, almost every shot down German pilot who had to jump with a parachute, would become a Prisoner of War. Allies didn't have this problem - any Allied pilot landing with a parachute on British soil would return back to service if aircrafts were available.
So it seems that both manpower and equipment situation was more favourable for RAF than Luftwaffe.
Situation would be different if RAF was on the offensive, fighting over Germany.
Also, British industry was up north and out of the reach of German planes. German industry was getting bombed all the time.
Yeah, but AFAIK Britain had no any great successes in destroying German war industry before the USA joined to these operations.
And bomb raids against the German industry were extremely costly for the Allies in the first period of the war.
Also despite the bombings German industrial production was constantly growing at least until early 1944.