JPS55136690A - Water jet craft - Google Patents

Water jet craft

Info

Publication number
JPS55136690A
JPS55136690A JP4377079A JP4377079A JPS55136690A JP S55136690 A JPS55136690 A JP S55136690A JP 4377079 A JP4377079 A JP 4377079A JP 4377079 A JP4377079 A JP 4377079A JP S55136690 A JPS55136690 A JP S55136690A
Authority
JP
Japan
Prior art keywords
craft
rudder
water
running
water jet
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.)
Pending
Application number
JP4377079A
Other languages
Japanese (ja)
Inventor
Shozo Okuma
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.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co Ltd
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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP4377079A priority Critical patent/JPS55136690A/en
Publication of JPS55136690A publication Critical patent/JPS55136690A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent a craft from stranding by such a construction that the lower end of a rudder is projected from the lowermost point of the hull when it is positioned downward in the water, so that the rudder emits alarm just when the craft is running in a shallow water.
CONSTITUTION: When a water jet craft with this construction is just running into a shallow water, the lower end 20c of the rudder 20 will touch the ground before the bottom of the craft touches the ground. This touch with the ground causes a noise with the rudder 20 as well as a light shock to the water jet craft 10, whereby the operator can know that the craft 10 is just running in a shallow water. The rudder 20 is to be so designed as to shift upward against the spring 25 force when it runs against any obstacle to prevent breakage and also as to be reinstated automatically to its normal hangdown position to continue sailing.
COPYRIGHT: (C)1980,JPO&Japio
JP4377079A 1979-04-11 1979-04-11 Water jet craft Pending JPS55136690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4377079A JPS55136690A (en) 1979-04-11 1979-04-11 Water jet craft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4377079A JPS55136690A (en) 1979-04-11 1979-04-11 Water jet craft

Publications (1)

Publication Number Publication Date
JPS55136690A true JPS55136690A (en) 1980-10-24

Family

ID=12672977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4377079A Pending JPS55136690A (en) 1979-04-11 1979-04-11 Water jet craft

Country Status (1)

Country Link
JP (1) JPS55136690A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5962100U (en) * 1982-10-20 1984-04-23 三菱重工業株式会社 Jet propulsion vessel with rudder
US10259552B1 (en) * 2016-04-08 2019-04-16 Jeffrey T. Walkowiak Rudder device for a hydrojet vessel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5962100U (en) * 1982-10-20 1984-04-23 三菱重工業株式会社 Jet propulsion vessel with rudder
US10259552B1 (en) * 2016-04-08 2019-04-16 Jeffrey T. Walkowiak Rudder device for a hydrojet vessel

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