At this point I decided to install the motor, on reflection it would have been far easier to have done this at the
time I assembled the basic main frames as there is a lot of stuff to get in the way now.
This wasn't really a problem, just more fiddly than it needed to be.
The motor here is the Align 400s 2800kv.

That completes the mechanical build, the following steps are all electronics installation.
Starting with the tail rotor servo mount and control rod.
My machine has four Align 9g servos.