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Introduction of Personal Watercrafts AquaTrax F-12/F-12X Installing a 4-Stroke Engine

Article of Honda R&D Technical Review Vol.14 No.1

Summary

The AquaTrax F-12 and F-12X Personal Watercraft (PWC) were developed with design goals of excellent driveability and environmental suitability superior to the existing 2-stroke engine PWCs. A 4-stroke engine and turbo charger were installed for the first time in PWCs. As a result, they passed the EPA 2006 emission regulation and the CARB 2004 emission regulation for the first time in PWCs, and driveability exceeded that of the existing 2-stroke engine PWCs. The turning ability of these PWC, like that of a motorcycle, was realized through a newly developed water jet pump suitable for the characteristics of a 4-stroke engine, and the hull bottom of Honda’s original shape. Thus, the level of existing PWCs was changed completely.

Reference

(1) Kochi, T., et al: “Development of an Off-Throttle-Steer System for Personal Watercraft”, Honda R&D Technical Review Vol. 14, No. 1. pp. 125–130 (2002)
(2) Tsuchiya, M., et al.: “Establishment of a Development Method of Water Jet Pump for 4 stroke Personal Watercraft”, Honda R&D Technical Review Vol. 14, No. 1. pp. 117–124 (2002)

Author (organization or company)

Hajime SHOGASE(Asaka R&D Center)、Takaharu KUROSAKI(Asaka R&D Center)、Masahiko TSUCHIYA(Asaka R&D Center)、Takao KOCHI(Asaka R&D Center)、Mamoru URAKI(Asaka R&D Center)、Noboru YOKOYA(Asaka R&D Center)

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