(1) In the event of the forced sale of a ship as described in section 82 and in accordance with the provisions of this Part—
(a) all mortgages and other preferential rights registered under this Part, except those assumed by the purchaser with the consent of the holders thereof; and
(b) all liens and other encumbrances of whatsoever nature but not including a charter party or contract for the use of the ship,
shall cease to attach to the ship.
(2) A charter party or contract for the use of the ship shall not be deemed a lien or encumbrance for the purpose of this section.