Buoyancy, stability, and structural strength describe different problems in a ship. The Japanese examples prompt a correction when capsizing is attributed to structural failure. Excessive topweight can overturn a ship even when its structure remains intact, because the weight is in the wrong places. That problem differs from a hull built too lightly for the loads it must carry.
Notable Point · 2:07:56-2:08:55
Buoyancy, topweight, and structural strength
A discussion of Japanese warships separates capsizing caused by topweight from inadequate buoyancy or structural failure.