Click Click Boom

When things go wrong in the wind tunnel, they go wrong quickly. Like at 200+MPH it takes all of about 0.3 seconds to get from test section to the prop. At that point, all bets are off.
BEFORE:

AFTER:BEFORE:


AFTER:
BEFORE:
AFTER:
When stuff up to and including Aluminum go through a B-29 prop spinning 1200RPM, there is not much left on the other side. I used a broom to sweep up the white bits of housing and the remains of the cooling fan that was inside the housing.