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The real thing in all it's glory
The HeliArtist 3 piece BO105 fuselage as received, but with the
skids just fitted
have been using the BO105 model as a training aircraft when teaching
other heli pilots to learn to hover using Phoenix, mostly because it
is large and easy to identify it's attitude at a distance.
when I saw a deal from a US supplier recently for the Heliartist
BO105 fuselage complete with angled tail drive mechanism etc at a
bargain price, I decided to bite the bullet and build one for myself
is usual with HeliArtist, the fuselage is a quite good fibreglass
mould, ready painted in this case, and even lettered with the ADAC
logo and German Registration D- HRET. It come in 2 main parts,
the main fuselage, and the nose, which comes off in the usual way,
but allows pretty good access into the large interior. They
also provide scale skids that give it a nice wide footprint.
the only other
part is a "shroud that wraps the mechanics of the raised tail
from the back, making access to that are relatively easy as well.
The basic woodwork needed to support the helicopter mechanics are
already glued into place, although I took the precaution of adding
some hot glue to them to ensure they will never move.
tail mechanics came already built up, with a special extended length
drive belt already fitted into it.
In the images
above, I have already fitted my Align Trex450 tail gearbox, to test
how easily it all goes together.
The only small
problem I had with this part of the build was running the rudder
control wire up to the tail control arm. HeliArtist
supply a longer control wire, threaded at both ends, which makes it
quite easy to fit and adjust, but you actually have to bend the wire
to the correct shape around the bottom, outside of the cranked
In fact it is
not a gearbox, it just contains a freewheeling toothed belt drive
gear and a smooth tensioner style wheel that lets the belt run
around them quite neatly. I was fortunate in having some spare
Extreme tail wire guides lying around in the workshop which you can
see are holding the rudder control wire in place very neatly.
I suspect that the standard supports would NOT work very well in
place of these metal Extreme units, as they can be tightened up
absolutely solidly in position.
Once you get
the bend in the wire correct to match the curvature needed, all that
was necessary in my case was to bend the very back end of the wire
slightly to get it lining up with the ball joint on the rudder
control arm nice and squarely. The control rod actually moves
very nice and freely, despite the bend in the wire, and has no free
The only other
problem I can now foresee is how I am ever going to get it to
connect to the Interceptor 400 frame that I have chosen to use to
power this helicopter. Due to the raised tail, it is obvious
that you cannot push it through the boom of the fuselage backwards,
and although it will indeed slide down through the boom from the
back quite easily, I cannot see a way to fit the boom into the frame
and fit the belt over the tail driven gear and adjust it all
once working inside the fuselage.
I suspect it
will come down to doing it all the other way around, removing the
raised tail parts and then sliding the original boom back down from
the front and adding the raised tail assembly bit by bit
again. We will see what happens when I reach that point.