Sounds likr someone put too much oil in their pt6.... You really should not fill it past the minimum line since it will just burn it. The min line is only like 2 or 3 quarts(correct me if im wrong its been a few years). But also a catastrphic engine failure in a van?? Thats just not rare, that windscreen is so large i dont think i could vomit and cover it. Also at 35mph thats gotta be one big branch to not only go through that big windscreen but to breakbone... After going thrpugh that big fan and pt6.
Overservicing the PT6 damages seals. The engine doesn't "burn" oil. It's not a piston motor. One should not service a PT6 to the minimum. Generally one keeps it at the 1-2 mark on the dipstick, which is one or two quarts below full.
It doesn't take a lot of oil to obscure vision; a fine mist or spray will make it difficult to see out the windscreen. Turbine oil from a PT6 isn't like piston oil, however, and doesn't come out black; it's fairly clear (slightly bluish/purplish in tint).
The poster to whom you're responding has described a catastrophic engine failure. Material striking the windshield (and subsequently entering the cockpit) doesn't ever need to "make it through the PT6" and the "big fan" already quit working...that's part of the reason it's an engine failure, you see.
Never had a bird strike on the cockpit, that's made it past the propeller? I certainly have...hundreds of times. That's hundreds. As for striking objects during the roll-out...of course it happens with some regularity during a forced landing. This is surprising?
I'd put that down as a "growth area" for him as the HR people would say.
You can put it down to whatever you want, but my comments are deliberate and intentional, and made without apology. Do your own growing.
John appears to have some good experience and knowledge to convey, he just hasn't learned to do so in a way which doesn't come across as - oh shall we say "in your face."
Quite the contrary. I come across exactly as I intend. That you may or may not like it is meaningless and irrelevant. Simply put, I don't care.