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GB776000A - Ship's hull construction - Google Patents

Ship's hull construction

Info

Publication number
GB776000A
GB776000A GB23930/54A GB2393054A GB776000A GB 776000 A GB776000 A GB 776000A GB 23930/54 A GB23930/54 A GB 23930/54A GB 2393054 A GB2393054 A GB 2393054A GB 776000 A GB776000 A GB 776000A
Authority
GB
United Kingdom
Prior art keywords
air
hull
tunnels
ship
tunnel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB23930/54A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KENNETH FRANK WILLIAMS
Original Assignee
KENNETH FRANK WILLIAMS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KENNETH FRANK WILLIAMS filed Critical KENNETH FRANK WILLIAMS
Priority to GB23930/54A priority Critical patent/GB776000A/en
Priority to DEW17321A priority patent/DE1033537B/en
Publication of GB776000A publication Critical patent/GB776000A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
    • B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
    • B63B1/38—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/10—Measures concerning design or construction of watercraft hulls

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
  • Wind Motors (AREA)

Abstract

776,000. Reducing skin friction and modifying rolling. WILLIAMS, K. F. Aug. 5, 1955 [Aug. 17, 1954], No. 23930/54. Class 113. In a ship's hull including a generally flat bottom G beneath which two air tunnels V1, V2 are formed by three downwardly extending projections, two of which N1, N2 are extensions of the sides of the hull, the other M being arranged along the longitudinal centre line of the bottom, the tunnels extending over substantially the whole length of the hull, turbo-jets or the like in the hull convey air to inlets V provided in the bottom of the hull adjacent the bow to direct air into the tunnels in a direction substantially parallel with the bottom of the hull and towards the stern and to maintain a cushion of air in each of the tunnels. The projections N1, N2 are provided with ports R and have secured thereto bracing members Z1, Z2 with ports P and exterior baffle plates F1, F2 defining passages Q up through which air escaping from one or other of the tunnels passes when the ship rolls. A short distance from the stern the roof H of each tunnel slopes downwardly and has a perforated plate I spaced therefrom. A pendulum operated device varies the air pressure in one tunnel with respect to the other to counteract rolling of the ship. Detector units are provided to indicate presence of air in each tunnel and to control the admission of air at inlets V.
GB23930/54A 1954-08-17 1954-08-17 Ship's hull construction Expired GB776000A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB23930/54A GB776000A (en) 1954-08-17 1954-08-17 Ship's hull construction
DEW17321A DE1033537B (en) 1954-08-17 1955-08-17 Hull

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23930/54A GB776000A (en) 1954-08-17 1954-08-17 Ship's hull construction

Publications (1)

Publication Number Publication Date
GB776000A true GB776000A (en) 1957-05-29

Family

ID=10203603

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23930/54A Expired GB776000A (en) 1954-08-17 1954-08-17 Ship's hull construction

Country Status (2)

Country Link
DE (1) DE1033537B (en)
GB (1) GB776000A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988035A (en) * 1956-12-27 1961-06-13 Gram Knud Fini Ship having an air cushion under the bottom
FR2408506A1 (en) * 1977-11-14 1979-06-08 Giessen De Noord Nv SHIP HULL
GB2268450A (en) * 1992-07-08 1994-01-12 John Harold Jonas Boat hull with reduced friction
GB2285415A (en) * 1994-01-11 1995-07-12 John Harold Jonas Rowing boat hull with reduced friction.
AT406143B (en) * 1997-10-16 2000-02-25 Eder Theodor SHIP BODY
CN107953968A (en) * 2017-11-23 2018-04-24 中国船舶科学研究中心上海分部 A kind of vertical stream jet drag reduction method of ship
CN112238922A (en) * 2019-07-17 2021-01-19 章洪 Supercavitation high-speed ship

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE307796C (en) *
FR343573A (en) * 1904-05-31 1904-10-10 Carl August Wels Kind of boat
FR502962A (en) * 1916-07-21 1920-05-31 Antoine Padoue Filippi Improvements to devices to reduce the resistance offered by water to the advancement of ships
FR23859E (en) * 1916-07-21 1921-12-13 Antoine Padoue Filippi Improvements to devices to reduce the resistance offered by water to the advancement of ships
FR827892A (en) * 1937-10-14 1938-05-05 Method for reducing the resistance to movement of a solid body in a fluid and apparatus such as a ship, seaplane or airplane for carrying out this method
CH251053A (en) * 1946-05-03 1947-09-30 Hirzel Edwin Ing Dipl Watercraft.

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988035A (en) * 1956-12-27 1961-06-13 Gram Knud Fini Ship having an air cushion under the bottom
FR2408506A1 (en) * 1977-11-14 1979-06-08 Giessen De Noord Nv SHIP HULL
GB2268450A (en) * 1992-07-08 1994-01-12 John Harold Jonas Boat hull with reduced friction
GB2268450B (en) * 1992-07-08 1996-04-17 John Harold Jonas Boat
GB2285415A (en) * 1994-01-11 1995-07-12 John Harold Jonas Rowing boat hull with reduced friction.
GB2285415B (en) * 1994-01-11 1997-06-11 John Harold Jonas Boat
AT406143B (en) * 1997-10-16 2000-02-25 Eder Theodor SHIP BODY
US6112687A (en) * 1997-10-16 2000-09-05 Eder; Theodor Ship hull
CN107953968A (en) * 2017-11-23 2018-04-24 中国船舶科学研究中心上海分部 A kind of vertical stream jet drag reduction method of ship
CN107953968B (en) * 2017-11-23 2019-11-26 中国船舶科学研究中心上海分部 A kind of vertical stream jet drag reduction method of ship
CN112238922A (en) * 2019-07-17 2021-01-19 章洪 Supercavitation high-speed ship

Also Published As

Publication number Publication date
DE1033537B (en) 1958-07-03

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