RST Engineering wrote:

No chocks, only tiedowns could have kept that aircraft from moving.


Chocks aren't perfect. At my home field we often get violent downbursts
from thunderstorms in the summer. Peak gusts of 60-70 kts aren't unusual. I
use both chocks and tiedowns, and I've found that after a particularly bad
storm, the chocks were often blown away from wheels and the plane was sitting
slightly sideways with the tiedowns pulled tight.

John Galban=====N4BQ (PA28-180)

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