I just love this sim ( do hope WOTR is as good.) I was somewhere over France fighting a Nueport and amid the full power turns and twists and loops a loud Racket started which reminded me of 1 of my 1st Car back ( a long time ago) Anyway, it sounded like a blown Rod bearing ( Rod) just wacking away.as the motor still ran. Wow just Great what with my other two pilots lost wings in a N-10 and a N-17. Now a Engine Rod in a D-III. Immersion factor a + 10