Alioth has been designed by RC Sailing Lab to be manufactured using 3D printing technology.

The project gathered the experience of the lead project designer J.E., who contributed with his extensive experience in the IOM Class and the design team, who worked exhaustively in achieving modern, functional and harmonic shapes.

The purpose is to put on the water a 3D printed IOM hull, easy to assemble at home, and at a low price, capable of winning races at the highest level.

Alioth was launched in December 2020. Thanks to the early Alioth owners and the design team, a new upgrade was launched in February 2022 (Alioth 2022 version): hull shape was slightly modified to achieve better performance in strong winds; flat aft deck with lid-hatch option was implemented; now the hull thickness varies along the length to achieve a stiffer and strongest hull at the less weight possible; new CNC milling appendages molds were made.



6th Torrevieja International Meeting 2023. Full results.

3rd ESP Championship 2023. Full results.

1st BRA Championship 2022.

4th ESP Championship 2022. Full results.

8th Torrevieja International Meeting 2022. Full results.

1st Encontro Sul-Brasilero 2022. Full results.

7th ESP Championship 2021. Full results.

1st Andalucia Champiosnship 2021 day 1. Full results.

7th Torrevieja International Meeting 2021. Full results.



You can purchase the G-Code files through the RC Sailing Lab store.


If you don´t have a 3D printer but would like to build an Alioth, 3D printed kits are available for that purpose. See Licensed Alioth Factories.


Licensed Alioth Factories are able to sell the carbon fin, rudder, and bulb, designed for the Alioth hull.


ALIOTH ESP-90, green 3D printed hull.