It is understood that seraph has 12 rotors, which are coaxially mounted on six wing arms. It looks like the plane has batteries on top, allowing air to pass through the sides of the propeller to cool the batteries and electronics.
Vertical Industries, based in Bristol, said the Saraph's weight could reach 250 kg, which means it could carry three people--even though the company wouldn't do it. At the moment, the 70-member company is building and authenticating a different, passenger-centric plane and wants to be put into service by 2020.
At that time, the aircraft will step back to perform test and potential heavy cargo tasks. Thanks to the modular design, seraph switches mode to a general purpose skateboard, wheel or pontoon for surface landing. It can also be made larger or smaller according to the needs of the operation.
However, due to the current energy density of lithium battery, the flight ability of the aircraft may be very limited, about 20 minutes.