Title:
ステップ型船体と船外フィンとを有する船舶
Document Type and Number:
Japanese Patent JP2012530021
Kind Code:
A
Abstract:
A watercraft (99) having a stepped hull (100) including a forward hull portion (103), a first stepped hull portion (106), and optionally a second stepped hull portion (108). Outboard ram air fins (120) extend outwardly from the hull and downwardly along the stepped hull portions. Outboard strakes (110, 112) are fixed to the stepped hull portions, and may be tapered to define ports thereto. During planing operation the channels defined by the fins compress the incoming air which is thereby at least partially forced under the stepped hull portion. In level operation the flow through the channels tends to keep the stepped hull portions in good contact with the water.
Inventors:
Hansen, William M.
Application Number:
JP2012516220A
Publication Date:
November 29, 2012
Filing Date:
June 15, 2010
Export Citation:
Assignee:
Safe Boats International L.L.C.
International Classes:
B63B1/20; B63B1/18; B63B1/32; B63B1/38
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita