|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||114/055.55 ; 114/055.57 ; 114/274 ; 114/280|
|발명자 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 6 인용 특허 : 5|
An aircraft-like body is provided with a keel that extends below and to the rear of the main body. The keel is provided with a large horizontally extending hydrofoil which produces a positive lift. The keel is further provided with a smaller hydrofoil which is located aft of and below the positive life hydrofoil and which produces a negative lift. The negative lift hydrofoil is located both aft of and below that which produces the positive lift. The downward force which is produced by the trailing hydrofoil produces a cranking action which produces a mom...
[ What is claimed is:] [1.] A water craft comprising:a main body;a keel extending from a lower portion of the main body;a first hydrofoil provided on said keel, said first hydrofoil being adapted to produce a positive lift force which lifts the craft upwardly when the vehicle travels through water; anda second hydrofoil provided on said keel, said second hydrofoil being adapted to produce a negative lift force which tends to pull the vehicle downwardly when the vehicle travels through water, said second hydrofoil being located on said keel at a level whi...