Motor vehicles – Surface effect vehicles – Rigid side walls
Patent
1976-03-19
1977-09-06
Goodman, Philip
Motor vehicles
Surface effect vehicles
Rigid side walls
114 67R, B63B 136
Patent
active
040462170
ABSTRACT:
An automatic roll, pitch, and heave stability device for air-cushion-borne vehicles equipped with semi-rigid planing bow and stern seals, the latter which may be divided into separate port and starboard seals, and with rigid side-walls. Each seal at its trailing edge is mechanically linked to, and controls, a bypass duct valve. The linkage is arranged so that pressure in the seal increases as the seal is forced up due to a wave crest, and decreases as the seal drops away from the vehicle body in a wave trough. Vehicle stability in heave is achieved by the bow and stern seals operating in unison; in pitch, by the bow and stern seals operating oppositely; and in roll, by the split port and starboard seals operating oppositely. The system operates both while the vehicle is underway, and with changes in load on the vehicle in calm water.
REFERENCES:
patent: 1819216 (1931-08-01), Warner
patent: 3146752 (1964-09-01), Ford
patent: 3191705 (1965-06-01), Jones et al.
patent: 3198274 (1965-08-01), Cocksedge
patent: 3373837 (1968-03-01), Guienne
patent: 3473503 (1969-10-01), Gunther
patent: 3532180 (1970-10-01), Ford et al.
patent: 3915107 (1975-10-01), Hilbig
Goodman Philip
Hodges Q. E.
Sciascia R. S.
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