Some have compared the profile of the Twinpower 520 to a "scaled-down Chinook" in appearance.

With seating for 8 and a projected cruise speed of 153 km/h - 74 kts , this new double rotors helicopter will radically change most people's idea of a double - piston engines helicopter .

Boasting an impressive 2400 Kg max. gross take -off weight and a projected 1500 Kg empty weight, useful load on the finished Twinpower 520 is expected to be in the 900 Kg. range.

With 300 l - 79 US gallons - fuel capacity, Avionav expects the helicopter to have a range of about 600 Km.
This is an helicopter that can "get the job done".

The cabin will be capable of maintaining the helicopter's 10,000' service ceiling.
The Twinpower 520 also boasts ample headroom and legroom in its comfortable 1.50 / 1.60 m tall (1.52 m wide) cabin.