Page 14 - MFW March 2024

Once he’d cleaned and tested the transmitter which was What next ?
on “long wire” 72 mg he found it was working perfectly. One may ask on this trip back to the Past ? Well I just
Then it was a matter of taking out the old transmition happen to have got my hands on an OS GUPPY 2
module and replacing it with the lemon 2.4 mgh Tx board. channel proportional radio from the late 1960/early
He ran into a problem initially as the encoder gave a servo 1970’s. A little work worn but still in its original box with Rx
range of plus and minus 85% travel. No problem for the and with square splined servos and battery box.
control surfaces but as we were going electric, the throttle
needed - 100% travel to be able to arm the ESC. After a
lot of research and on-line reading and some discussion
with Barry Lennox, Rob managed to change some of the
component values and modify the throttle settings to
achieve this. It is now fitted with a 6 cell 7.2 volt NiMH
battery pack and charger plug, a power light and the
battery meter has been re-calibrated for the pack.

I have built a new Clubba for the ACE radio, needing an
aircraft which is a stable flyer, aerobatic, repairable and
“Disposeable” ! It has been test flown satisfactorily so
now its just a matter of transferring those settings to the
ACE set up and go fly. But Hold Everything, this Tx is
essentially a MODE 2 unit, with elevator and aileron on
the stick which also revolves for the rudder input.

The Throttle is on a
slider on the right hand
side of the box ! But I
fly MODE 1 with my
thumbs, m’thinks this
might not be my best

Now this would
be a real step up
from the OS S/C
set. 2 channel
proportional on
2.4 mgh, That
would really be flying par excellence. I can feel a future up-
grade for the Tomboy coming on !!
way forward. However, Rob flys Mode 2, so who better
person to make the test flight and then he can hand me the
controls one day when we’re at least three crashes high ! Now what was Rob’s phone number again ? I didn’t know
time travel could be such fun.
Barrie Russell. MFHB

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