Or, a la the smash into the Pentagon on 9/11, it could be long scattered smithereens. Passenger planes aren’t made to be crashworthy.
” a la the smash into the Pentagon “
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Yes, that is certainly a controlled crash, but not the type that I an referring to.
A controlled crash is one where the pilot has limited control, such as in a “gear up” landing, or landing with no engine power.