Sailing Drones .au

This blog documents the ongoing development of low-cost autonomous ocean-going sailing drones, utilising a self-trimming wing sail. The sailing drones are currently controlled using Teensy microcontrollers, using C++. This is the Voyager series of sailing drones.

Sunday, 12 October 2025

Wing Sail Foil Testing - Downwind Settings

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  Wing Sail Foil Testing - Downwind Settings The current algorithm used within Voyager to set the Wing Sail Trim Tab is simple: The trim tab...
Thursday, 9 October 2025

Wing Sail Foil Testing - Trim Tab Size and Control Authority

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Wing Sail Foil Testing - Trim Tab Size and Control Authority One objective of testing was to clarify the relationship between trim-tab size ...
Wednesday, 8 October 2025

Wing Sail Foil Testing - Optimum Axis Position

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Wing Sail Foil Testing - Optimum Axis Position What is the optimum position of the axis of a self-trimming wing sail expressed as a percent...
Tuesday, 7 October 2025

Wing Sail Foil Testing - The Setup

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 Wing Sail Foil Testing - The Setup The designs of the wing sails used with the Voyager sailing drones have been established by studying o...
Wednesday, 24 September 2025

Tenth time lucky - Finally!! - a Successful Ocean Passage

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Tenth time lucky - Finally !! - a Successful Ocean Passage Sunday 7th September 2025 around 6pm Voyager 2.9 was launched from Torquay . She ...
Sunday, 10 August 2025

Ninth Voyage in Bass Strait - Argh! Software Bug!

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Ninth Voyage in Bass Strait - Argh! Software Bug! Conditions were good for a 2-day passage commencing from Torquay Fisherman's Beach on ...
Sunday, 13 July 2025

New Self Trimming Wing Sail Design - Tailless

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 New Self Trimming Wing Sail Design - Tailless A symmetrical foil generally has the Centre of Pressure (CoP) at a position about 25% of the ...
Saturday, 19 April 2025

8th Bass Strait Voyage

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 8th Bass Strait Voyage  Just after dawn on April 13, 2025 suitable weather conditions lead to launching Voyager 2.8 from Flinders, Victoria...

Magnetic Coupling for Steering V3

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 Magnetic Coupling for Steering - V3 The magnetic coupling used to transmit the steering servo's torque to the rudder through a waterpro...
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