JM a link to the Spitfire manual, plus some others I was unaware off, so for anyone with a Vulcan Bomber, Lancaster, Hurricane and Messerschmitt in there garage then click on the link and scroll to the bottom.
Supermarine Spitfire: Ownerss Legendary World War 2 Fighter: Amazon.co.uk: Dr. Alfred Price, Paul Blackah: Books
Recovered from the, at the time. freshly dissolved USSR. Not so much battle damage but rather mostly bored Russians. Having seen wadded up P39 wreckage, the engine would be the last thing to take impact damage. Pilot's compartment is well protected ,too, more than is needed, probably.