[Boot Hill]

"The pressure hull looks to be in fair shape."

Just curious, how can you tell?

--Boot Hill

[Robert A Cook PE]

On 688's, the pressure hull IS the outer hull from aft of MBT 3A&B all the way to aft elliptical bulkhead at the shaft seals,

The (visible, extremely serious) buckling is confined to the MBT area - though THOSE frames may have pulled and distorted the pressure hull in that area.

Aft of those frames the rest of the hull "appears" to still be in concentric circles.

BUT - Check with a body shop operator about a severe crash to the left front bumper and engine mounts.... Even the doors on the right rear can get distorted and thrown out of alignment.

Here, the whole bow might be thrown to the right - away from the collision.

[Redcloak]

Based on what I remember of a 1/4 scale model of the 688 (used for testing a sonar array) the bulkhead between the sonar suite and the forward compartment looks more or less normal. They probably had some flooding, but nothing catastrophic.