As written in part one we want to make the system as light as possible. In order to do that we also had to build the propulsion unit a small volume. This means that all the components are moved very close to each other to save weight and space.
For the battery we have used high density Li-ion round battery and designed a carbon tube where they have a perfect fit and with the electronic unit located behind the batteries.
The carbon tube is also the mount for the motor and to get a high level of performance from the propulsion unit we had to customize the engine, so we gave the rotators of the engine a spinner shape.
Click here to see the propulsion unit in action!