Photo: Circus RC (source)
The 1/12 on-road class lives with a permanent constraint: every gram counts, and the space available between chassis and bodyshell is tiny. That is exactly the brief behind the MIN1, the new digital servo from Aerox, the electronics range distributed by Schumacher.
A coreless motor in a 28.5 g case
The MIN1 is a 1/12 digital servo fitted with a coreless motor, a technology that removes the rotor’s iron core to cut inertia and sharpen response. The unit weighs 28.5 g and measures 35.0 x 15.1 x 29.5 mm, a footprint that should let it fit without difficulty into the tightest on-road chassis.
7.5 kg.cm and 0.080 sec at 7.4V
On the performance side, Aerox quotes 6.5 kg.cm of torque at 6.0V and 7.5 kg.cm at 7.4V, with a speed of 0.090 sec at 6.0V and 0.080 sec at 7.4V. The accepted supply range runs from 6.0 to 8.4 DC volts, leaving the choice between conventional power through the speed controller’s BEC and a direct feed from a high-voltage pack.
Copper and aluminium gearing
To last despite the loads of competitive 1/12 racing, the MIN1 gets copper and aluminium gearing. Those material choices are aimed at limiting the slop that appears with wear, a critical point in a class where steering precision accounts for a large part of the lap time.
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