GB2429436A - Self launching powerboat with retractable tracked drive means - Google Patents

Self launching powerboat with retractable tracked drive means Download PDF

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Publication number
GB2429436A
GB2429436A GB0517415A GB0517415A GB2429436A GB 2429436 A GB2429436 A GB 2429436A GB 0517415 A GB0517415 A GB 0517415A GB 0517415 A GB0517415 A GB 0517415A GB 2429436 A GB2429436 A GB 2429436A
Authority
GB
United Kingdom
Prior art keywords
powerboat
retractable
undercarriage
drive means
hydraulically
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.)
Withdrawn
Application number
GB0517415A
Other versions
GB0517415D0 (en
Inventor
Shaun Maguire
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0517415A priority Critical patent/GB2429436A/en
Publication of GB0517415D0 publication Critical patent/GB0517415D0/en
Publication of GB2429436A publication Critical patent/GB2429436A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
    • B60F3/00—Amphibious vehicles, i.e. vehicles capable of travelling both on land and on water; Land vehicles capable of travelling under water
    • B60F3/0007—Arrangement of propulsion or steering means on amphibious vehicles
    • B60F3/0015—Arrangement of propulsion or steering means on amphibious vehicles comprising tracks specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C13/00—Equipment forming part of or attachable to vessels facilitating transport over land

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Handcart (AREA)

Abstract

A self launching powerboat comprises a retractable hydraulically driven tracked undercarriage which can traverse unstable terrain. An undercarriage storage compartment within the hull of the powerboat is enclosed with hydraulically powered doors when the undercarriage is in a stowed position. During land use the bow of the powerboat is supported by a single hydraulically raised non-driven caster balloon tyre.

Description

SELF LAUNCHING POWERBOAT
I have developed a self launching track driven boat which can be used on soft terrain. This enables the boat to visit many otherwise inaccessible beaches and avoids crowded marinas. The concept of amphibious boats is not new, but previous methods have involved wheels and these do not have the ground pressure advantage of tracks so they cannot climb gradients and they sink into sand and shingle.
The track units are raised and lowered hydraulically and when afloat they are housed inside the boat. All hydraulic power is supplied by a separate air-cooled power pack with tandem pumps feeding oil to the drive units.
Steering is achieved by braking each track separately. Doors close hydraulically beneath this housing to retain the hull profile. This compartment does not need to be watertight as the water self drains as the boat gains momentum. I have calculated that using a 1 5OFIP outboard motor, this vessel can achieve a speed of 30 knots or more.
The bow support has a single hydraulically raised non-driven caster balloon tyre which only supports 10% of the total weight. This gives a third gives a third point of support and it stows inside the bow when at sea. All components are marine grade quality and the weight carefully calculated.
This invention will now be described with reference to the accompanying drawing in which: Fig 1 shows door open Fig 2 shows track lowered Fig 3 shows track raised Fig 4 shows door closed Fig 5 shows bow support lowered Fig 6 shows bow support raised Fig 7 shows power pack

Claims (2)

1. Self launching boat comprising a retractable hydraulically driven tracked undercarriage which can traverse unstable terrain.
2. High planning speeds are achieved due to hull profile being maintained when undercarriage is in stowed position.
GB0517415A 2005-08-25 2005-08-25 Self launching powerboat with retractable tracked drive means Withdrawn GB2429436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0517415A GB2429436A (en) 2005-08-25 2005-08-25 Self launching powerboat with retractable tracked drive means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0517415A GB2429436A (en) 2005-08-25 2005-08-25 Self launching powerboat with retractable tracked drive means

Publications (2)

Publication Number Publication Date
GB0517415D0 GB0517415D0 (en) 2005-10-05
GB2429436A true GB2429436A (en) 2007-02-28

Family

ID=35198408

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0517415A Withdrawn GB2429436A (en) 2005-08-25 2005-08-25 Self launching powerboat with retractable tracked drive means

Country Status (1)

Country Link
GB (1) GB2429436A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB542581A (en) * 1940-07-13 1942-01-16 Geoffrey Maxwell Gibbs An improved amphibious armoured vehicle
GB608680A (en) * 1944-11-22 1948-09-20 Antoine Gazda Improvements relating to the hulls of ships, floats and the like
GB922145A (en) * 1960-08-11 1963-03-27 Ake Hedstrom An improved amphibian unit
US3487802A (en) * 1968-02-07 1970-01-06 Lynn H Roy Amphibious boat
US5181478A (en) * 1991-12-23 1993-01-26 Sebastiano Berardi Amphibious vehicle with retractable wheels
US6981461B1 (en) * 2004-08-23 2006-01-03 Burg Donald E Amphibious high speed marine vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB542581A (en) * 1940-07-13 1942-01-16 Geoffrey Maxwell Gibbs An improved amphibious armoured vehicle
GB608680A (en) * 1944-11-22 1948-09-20 Antoine Gazda Improvements relating to the hulls of ships, floats and the like
GB922145A (en) * 1960-08-11 1963-03-27 Ake Hedstrom An improved amphibian unit
US3487802A (en) * 1968-02-07 1970-01-06 Lynn H Roy Amphibious boat
US5181478A (en) * 1991-12-23 1993-01-26 Sebastiano Berardi Amphibious vehicle with retractable wheels
US6981461B1 (en) * 2004-08-23 2006-01-03 Burg Donald E Amphibious high speed marine vehicle

Also Published As

Publication number Publication date
GB0517415D0 (en) 2005-10-05

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)