SAIL SHIP HULL Russian patent published in 1994 - IPC

FIELD: shipbuilding. SUBSTANCE: recess 3 of fin keel 2 has longitudinal guide 6 at the top continued on ship hull 1. Sliding keel plate 4 is suspended on rollers 5 on guide 6. The plate sliding mechanism is made in the form of two rollers 8 and 11 passed through glands 7 in hull 1, rollers 8 and 11 have elastic and flexible rolls 14 on the lower ends in the keel recess, the rolls engage with keel plate 4. One of rollers 8 at the top inside hull 1 has drive handle 9 and drive gear 10 engaged with driven gear 12 of second roller 11, gear 12 has stop 13. Fin keel 2 and its sliding plate 4 are made rigid. EFFECT: improved structure. 3 dwg