The gear-box was designed on the
basis that with an ordinary radio-control there was only need for
a clutch, one forward and one reverse gear.
|The clutch, consisting of a strip of phosphor-bronze
wrapped around a wheel, is manoeuvred by a landing-gear-servo. When
stretched the strip softly stops the wheel and the power from the engine
is transformed to the forward-reverse part of the gear-box. The
gearlever is operated by an ordinary servo-motor-mechanism.
|When visiting the scrap-yard - and you often do in
this line of work - I found a large heap of new but discarded housings
for electro-motors. I immediately saw the potential for using them to
encase the differential cage ! I did not trust my own capability to make
the six gears so I bought them ! The differential cage was made of
aluminium, the bearings of bronze.
The rear axle finished and
|Rear axle with springs and brakes have just been
painted and now ready for final assembly.