[Lonesome in Massachussets]

I believe that in the Battle of Britain, HE-177’s suffered a loss rate of about 12.5%. Every mission for the Luftwaffe was like the Schweinfurt Raid.

[PLMerite]

"I believe that in the Battle of Britain, HE-177’s suffered a loss rate of about 12.5%"

The He-177 didn't enter service until 1942. The German bomber during the Battle of Britain was the He-111:

A much smaller aircraft, with only two engines.

[BobinIL]

Those were HE 111’s