Grimsby-Hull hovercraft service 1969.

HM2 008 Mercury returned to Hovermarine’s Southampton factory where she was upgraded & eventually sold to Sociede Turistica Pontado Adoxe in Setubal, Portugal as “Soltroia” in 1971. Her sister HM2 002 Minerva eventually went to Ital Hover S.p.A Venice as “Mare 3” in 1972.

Many thanks indeed for the update Bob.