Oh those CERTIFIED plane engines !!!!!!!!!!!!!!!!!

If I may be forgiven (or not) for reading about the Corvair crank
failures with rectal vision, they should not have surprised anyone.

If you would read the site again, I think you will find that the breaking
problem is limited to higher speed airplanes, not stuff like aircampers,
right?

It is highly unlikely that any auto manufacturer is going to put
a crankshaft that is a whole lot stronger than needed into a
standard engine, don't you think?

Some manufacturers, at certain times in their lifespan, are less
comfortable
with cutting design strength margins too closely. GM is more likely to
build hell for stout, than are many of the imports, IMHO.

And even more than the "aircraft" manufacturers, where weight IS the
enemy, and where change for improvement's sake is very much frowned
upon. If you change or improve something, you are admitting something
was less than perfect, and leaving yourself vulnerable to that
"unwashed horde" known as the "legal proffesion".

I also love to pick. However, let's also remember that improvements and
vendor changes also have a way of restarting the entire field experience
process--as has been discussed earlier in this thread, and also in AvFlash,
with regard to Lycoming...