Originally posted by VO101_Isegrim
He made an interesting comment on the V-1710 tbo time.. he said that they needed to change the engine in the aircraft as soon as small bits of metal appeared in the oil, indicating that the engine was being worn out. He said that this was done after 50 hours of operation in avarage...
IIRC somewhere was a story that russians used more boost in their aircrafts than USAAF did use thought I don't know if it was true or not.