I have just finished fixing an A cat that was dragged along the road at 60mph on a 45 degree angle (heap big crosswind!). There was another boat loaded on top so the hull took the whole impact with combined inertia of the trailer and other boat making things worse. See attached photo.
Structurally the boat is fine (and emotionally is much better off than the owner was!) - including the beam pads and bolts, and even x-rays of the carbon beams show no damage
All that happened was the road wore a 6" streak thru the hull, from the centrecase to the transom (the boat was towing backwards). I have plenty of experience and have seem many prangs and I don't know of any boat that would have survived in any better shape - but I know plenty that would have turned to dust.
I have photos for the ghoulish amongst you.
I live in NZ and have never seen an FX-1 but that's my $0.02 worth.
Simon Manning
A Class NZL230.........boats are for life...