Ord.No. 17/10 concerning a 2 mm steel drive wire in acrobatics applies not only for fuselages, it is similar for training helicopters.
When you convert a trainer, you use the existing tail boom. Main gearbox and tail gearbox have to be provided with a claw connector 49/12 each.
Models over a certain age should be checked whether the present tail rotor connector has a shaft of 5 mm OD. If not, you will require a bevel gear 95 and two ballraces 96/1.
Stainless steel drive wire
for 20 mm Ø tail boom
with 0.8 mm wall thickness
complete as shown
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