CATAMARAN MODEL 1/20th DRIVETRAIN

Solar Navigator's new 1/20th scale drive-train consists of 2 Swiss made Maxon 11 watt DC motors running through a 2:1 reduction box, coupled by a universal joint, to a 2.4mm stainless steel driveshaft (not shown) and finally to a 75mm diameter propeller.

New motors, 2:1 reduction box, universal joint, propeller

This should provide a respectable performance from 40 solar panels, 20 per wing, generating close on 20 watts in fine conditions (peak summer).  This is a significant increase on the solar panel area of the first 1/20th catamaran model, which generated a measly 6 watts.

An early drive unit was a cut down Graupner Multispeed 140, into which the solar motors elegantly push fit.  The flexi drive shown was made to our specifications to mate to a long 1.5mm prop-shaft.

Original solar motor, 2:1 reduction & flexible joint

A new lightweight aluminium spaceframe is under construction to join the catamaran hulls, replacing moulded composite sections and also saving 150 grams.  The Sun Tracker system is to be incorporated in the model for the first time, to ensure maximum energy collection.

It is hoped the combined technology will allow us to set model speed and endurance records (beat our own records) in the near future as part of our development of the full size vessel.

Healthier alternative tastes for adventure capitalists

Solar Red | Solar Crush + | Solar Cola | Solar Citrus + | Solar +

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