As compared to the current functioning prototype, the new model will have a sleeker, more aerodynamic hull. This design update is based on both wind tunnel testing and computer modelling, along with data gathered during test flights of the prototype. Its changed shape is particularly visible in the form of a rounder nose, and a new tail section.
The cabin will also be more aerodynamic, plus it will be longer. The latter is made possible due to the fact that components such as the fuel module, which are currently slung below the prototype's hull, are being moved up into the hull. As a result, the cabin can now be up to 46 meters long by 6 m wide (151 by 20 ft). In that configuration, it offers 2,100 sq ft (195 sq m) of floor space, not including the flight deck.
Hybrid Air Vehicles, the UK company that is adapting the original technology for civilian use, previously released images of what a deluxe tourist-carrying version of that cabin might look like.