I really hate to admit it, but, to my great chagrin I once departure stalled
and crashed a rear-engine ultralight. Think of a Quicksilver, except the
engine was under the wing. Well, it didn't "tear loose" but rather went
right over my head.

A friend and a passerby together elevated the tangled
mass of tubing enough for me to crawl out from under it. Amazing how hard it
is to release a seat belt when your body is dangling from it...

Al Mills
+++++++++++++++++++++++++++++++++++++++

Sounds like your seatbelt was NOT an aviation approved type.
If it was, it should have unlatched easily...
allowing you to fall and break your neck or
whatever was going to break your fall. g

Barnyard BOb --