"I wonder if that is from the bulbous bow of the container ship?" ~~~~~~~
Almost certainly so. And, as I expected, the sub-surface damage is forward of the upper hull / superstructure damage --- as predicted by this collision positioning study:
rlmorel and I did matching studies -- and (IIUC) we reached, essentially, the same conclusions:
- No damage on the Fitzgerald indicates any forward displacement
- The Fitzgerald exhibits massive "downward-smashing" displacement
- The ACXCrystal shows no evidence of any aftward damage / displacement.
- The USS Fitzgerald was traveling faster than the ACX Crystal while the two vessels were in contact, and may have been accelerating in an attempted emergency turn to port.
- Fitzgerald "rode up on" the Crystal's bow protrusion, damaging Fitz's lower hull and heeling the Fitzgerald over to port.
- The "heel-over" raised the Fitzgerald's starboard deck and caused the "downward-smashing" damage (clearly visible above) to be inflicted by the Crystal's upper bow.
- Had the ACX Crystal had a bow lacking the forward underwater protrusion, the damage to the Fitzgerald would probably have been comparatively far less severe.
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I fully expect that, if rlmorel has any disagreement with the above analysis, he will "set me straight"... '-)