The time has come to completely rethink Aerobatics. A dedicated team partnered together to develop the first electric aerobatic aircraft capable of flying an advanced FAI aerobatic program. 
The team, consisting of main sponsor Hamilton International, Siemens, Renata Batteries, Silence Aircraft, Hangar 55, Insysta, Tonic and Cimark developed and built this new, eco-friendly aircraft together. 
The best components were selected, starting with the Silence Aircraft Twister, one of the most efficient aircrafts flying today, Siemens electric engine, a highly performant electric engine, knowledge and technology from Hamilton International – a Swatch Group company; and project management skills of Hangar 55 to assemble this innovative aircraft in record time.  
In addition, significant support was provided by Insysta information systems which houses the huge database, Tonic which helped with media presence and Cimark, which opened many technology doors.



The Hamilton aEro Twister is a very light and efficient aircraft certified to fly aerobatics between +6 and -4 G. The fiberglass airframe is stiffened and strengthened by carbon elements, while the engine provides up to 100 KW power and a 45 minute-flight autonomy, including 15 minutes of aerobatics. The weight/power ratio is 4.2kg per KW, a ratio quite similar to an Extra 200, providing the required performance needed for aerobatic training.

Safety is a main topic topic as the plane can be used for demonstrations but also for beginners to train and therefore needs to be easy to operate. The Siemens engine proved its ability already in the air and is very reliable. Each battery cell has its own processor to control and monitor the situation: in case of overheating, up to 10% of cells can be switched off independently, allowing the pilot to fly back to the airport safely.
Another key aspect is sustainability and ecology. The plane defines a new way of flying by being CO2 neutral and emitting a very low noise profile. Together with other developments, this project supports the future of aviation through environmental-friendly initiatives and a long term vision. Finally, cost is also lower – about 2/5th of a regular aerobatic plane – and is aimed at attracting not only experienced aerobatic pilots but also young people who cannot currently afford to start the immense adventure of flying a plane upside down.
Landing gear Fixed landing gear, aerodynamically dressed
Engine Siemens
Prop 3 blade Woodcomp



Weight engine 13 kg
Weight gearing 10 kg
Weight cell 140 kg
Empty weight 310 kg (incl. batteries, gearing and engine)
Weight batteries 160 kg
Useful load 110 kg (pilot, lugage)
Max. takeoff weight 420 kg
Max. wing loading 47 kg/m²
Max. load factor +6 G / -4 G
Wingspan 7.5 m
Wing area 8.73 m²
Horizontal stabilizer span 2.8 m
Length 5.5 m



Batteries High capacity 200 Wh/kg
Stored energy 30 kWh
Max. voltage 420V
Max. amp 200 A
Engine power 100 kW
Max. flight time 60 min
Usual flight time 30 min aerobatics + 15 min Reserve
Never Exceed Speed (Vne) 300 km/h
Cruise speed 270 km/h
Economical cruise speed 220 km/h
Rate of climb 9 m/s (with 80 kW)
Ø Power consumption 30 kW/h
Range 160 km (with 15 min reserve)
Energy recovery 13 % during aerobatics flight
85 Kw/h engine with a maximum voltage of 450V und 200 amp.
Quickmounting wings
We have a total wingspan of 7.5 meters and a wing area of 8.73 m².
Removable Battery
Three fast removable battery pots provide 30kw/h energy.




Some incredible great fotos of Jean-Marie Urlacher


In press

aEro 001 has gained some attention! Thank you very...
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Hamilton Presentation in Raron Switzerland 21. September 2016



We thank all the people involved for the great help in this project.



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