Lindsay Lord on the Higgins PT design:
"A good feature of the design is the high forward profile of the chine. However, the excessive concavity of sections allows serious pounding just forward of amidships when the going is rough. Aft of amidships the plane warpage becomes so extreme that suction loads up to 8 tons are not uncommon, a full explanation of the poor trim and balance of these vessels."
He goes on to note (with dripping sarcasm) that Higgins patented the design, claiming that the squatting at speed caused by the suction load was an advantage of the design.
“So we beat on, boats against the current, borne back ceaselessly into the past.”