Assen A1 mockup

Assen Aeronautics
Miami, Florida, USA

The Assen Aeronautics A1 flying hoverbike is a hybrid electric Vertical Take-Off and Landing (VTOL) personal flying device initially made for recreation and sports.

The A1 has a length of 3 m and a width of 2 m, weighing 52 kg and supporting a 152 kg payload. The hybrid drive powers two forward and one aft electric motors for vertical propellers situated around the pilot’s saddle. The batteries can provide 20 minutes of flight and the 18.5 l gasoline tank can provide up to 55 minutes. Its ceiling is 1219 m and its speed 101 km/h.

The hoverbike is initially intended to have a leisure and “extreme” sport application. This is part of Assen’s marketing strategy to blend such vehicles more naturally into people’s lives as the “flying car” concept is often met with skepticism. More serious applications will be adapted later.

The working prototype took two and half years to produce, and is now being tested at the companies south Florida facilities. The company aims to stage its first technology demonstration in 2019, including multiple races.

 Assen Aeronautics was created in 2015 after founder Assen Andonova learned roads damaged in the 2010 Haitian earthquake hampered ambulance services. In 2017 Florida International University teamed up with the company adding additional engineering expertise and accelerating its progress.

Assen A1 mockup
Assen A1 mockup
Assen A1 mockup flying
Assen A1 mockup flying
Assen A1 prototype
Assen A1 prototype


Max Speed 54.74 kts 101.4 kg
Ceiling at gross weight 4000 ft 1219.2 m (density altitude)
Width 106 in 2.7 m
Length 120 in 3 m
Weight as shown 114 lbs 51.7 kg
Max Gross weight 463 lbs 210 kg
Propulsion Electric Motors
Power 57 kW
Max Continuous Thrust 600 lbs 272.1 kg
Max Thrust 2 min limit 720 Lbs 326.6 kg
Max sustained bank angle 40 degrees
Max bank angle for 10 sec 50 degrees
Energy Source: Batteries/Hybrid drive
Battery Capacity 12.8 kWh
Endurance on Batteries 20 min
Battery Charging time 40 min
Endurance on Gasoline 55 min
Gas tank Capacity 4.9 Gallons 18.5 liters


AssenHover Bikes/DevicesInitial Design, 1 PassengerElectric Hybrid, Piloted