There's a whole pile of realism that has been abstracted out of AH. For example, I was flying a quick-built mission in IL-2 FB AEP, taking a Go-229 against a group of three B-17s, and after shooting them down flew back to the nearest field. As I was closing on the field, I chopped the throttles... and both engines caught fire. Try this in AH with a 262, and all that will happen is the engines will spool down.