I thought it was great except for two glaring errors. In one sentence he talks
about the tendency of the big radials to "stall without warning"

I was too young for WW II, but a few years later I spent some 800
hours sitting between two PW R-2800s, the "big radial" of WW II, and
I never had one "stall," or quit for any reason other than I shut it
down.

I did have one "blow a jug" but it I could still get 36 inches of MP
and 2400 RPM, which we considered "climbing power."

Some, such as in P-47s on strafing missions, took a lot more damage
than that but kept running.

A hell of a good engine!

vince norris