HAGGIS 150 Outboard

By HappyHaggis 1 entry 28 Jan 2026
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HAGGIS 150 Outboard

This came about from wanting to build a harbour support vessel though couldn't find the correct outboard. I spotted some Stl files for an outboard that was poorly designed and had been proven not to work. I took these files and amended several parts and altered the shape of the leg slightly.

Instead of working with a shaft and gears its a flexshaft coupled to a 540 brushed motor with a realistic water cooling inlet and outlet. It's designed for high torque and low speeds. Its fitted with my own designed 3 blade high pitch propeller for maximum thrust at low rpm.

Has been tested in the bath so far and works very well. Just needing to build or find that harbour support to attach a couple or 4 of these too

Here it is running on the test hull.
Liked by Razor1955 and Rookysailor and

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