I just had a thought about timing/pipe "holding back" the r.p.m.
Just wondering...
If an angine looses it's prop, and you have a shaft run, can't the engine's r.p.m. go waaaayyyy beyond it's "normal" range?
I'm thinking if you put a fairly clean airplane like the Patriot into a WFO screaming full throttle dive, the engine isn't really gonna hold things back much
and the r.p.m. could go well beyond what could be considered the "normal" operating range. (no matter what the timing #'s are or the pipe "says"
)
I'm not talking astronomical r.p.m. figures now...but maybe 20K or thereabouts?
Whadoyathink?