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World premiere: Volocopter is flying manned! - Dawn of a revolution in urban mobility

 

 

Karlsruhe, April 2016. The premiere of manned flights with the world’s first certified multicopter, e-volo’s Volocopter VC200, marks the beginning of a new era in urban mobility. The Volocopter is a personal aerial vehicle that is so easy and safe to fly, literally anyone can command it. Due to its electric propulsion, it has no exhaust emissions and is impressively quiet. For the first time humans’ dream of personal flight as a daily routine becomes attainable. As such it not only offers more widespread use in conventional aircraft domains, but brings us another step closer to air taxi services and entire transportation systems in the third dimension.

The Volocopter VC200 received the ‘permit-to-fly’ as an ultralight aircraft from German aviation authorities in February 2016. In the context of the commenced test program, e-volo has started to conduct manned flights. The historic world premiere of a flight with a certified multicopter was made by e-volo managing director Alexander Zosel on March 30th, 2016 on an airfield in Southern Germany.

„The flight was totally awesome” Alexander Zosel said right after his landing. „The machine was absolutely reliable, there were no vibrations, it was tremendous. Anyway, the first flight was simply unbelievable. I got in, we did the pre-checks for what felt like maybe 20 seconds, and after that I’d already got the all-clear for flying. I didn’t wait long, I simply pushed the lever upward and the Volocopter simply sprung upward in a single bound. It was unbelievable, it hovered totally weightlessly, I mean it didn’t at all feel like there were crazy forces at work, it was all just totally light and the Volocopter immediately converted every movement I made with the joystick.
It is definitely a sublime feeling to lift off, fly the first few meters, and then actually take my hand off the joystick and think that, yeah, it’s really as if I’m standing on the ground, and then I look down and there are 20-25 meters beneath me. So it’s definitely unbelievable what we’ve achieved here. It’s seriously unbelievable!”


Thanks to its innovative flight control, the vertical take-off and landing aircraft (VTOL) is extremely easy to fly. The Volocopter is piloted one-handedly with a single joystick and significantly reduces the number one reason for accidents in conventional helicopters: human error. To demonstrate this feature, Zosel releases his hand from the joystick to applaud his team during the premiere flight, while the Volocopter automatically holds its position. A comprehensive redundancy concept compensates any failure by critical components including the loss of several motors. This was demonstrated exhaustively during the certification process. Furthermore, the Volocopter is quiet and due to its purely electric motors along with its quickly interchangeable battery system, it is also absolutely emission free.

Technology assistance was provided by German drone manufacturer „Ascending Technologies“, which has recently been acquired by US chip maker Intel Corporation.

„Intel congratulates e-volo on this accomplishment”, said Josh Walden senior vice president and general manager of the New Technology Group at Intel. “Technology developed by Ascending Technologies assists in the flight controls, motor electronics and key elements that extend multi-rotor UAV technology to this new type of aircraft. We look forward to aiding the development of more manned and unmanned vehicles in the future.”

Through the shareholding position of Ascending Technologies, Intel Capital has now become a direct shareholder in e-volo. Stephan Wolf from e-volo comments “Intel has invested strongly in the UAS (Unmanned Aircraft Systems) space and now is a global leading player in the area. There will be great benefits from a cooperation on the Volocopter.”

E-volo’s next goal is to receive a type certification and to produce the Volocopter in large quantities. Thus, in the next 2 years, the well-established air sports market will be entered, similar to the introduction of the gyrocopter and the helicopter. In a further developmental step, air taxi services are expected to be established. Initially, they will be planned for predetermined routes as airport shuttles or at sensible traffic nodes such as bridges. Medium-term, brand new, increasingly autonomous mobility concepts can be offered with the Volocopter, in which individual as well as public transport can be partly shifted into the sky.

At the invitation of NASA, Florian Reuter from the e-volo management team presented the newest developments in the Volocopter to experts from air and space travel at the “On-Demand Mobility” workshop in Washington. The judicial framework, which would have to be adjusted internationally to allow individual flight in urban areas for everyone, was also discussed at the workshop. In advance, NASA had published a study addressing this topic, which highlighted the positive contribution such a system would have on the alleviation of the daily traffic congestion in the Silicon Valley region in California.

Start of the Manned Test Flight Program
The first flight of Alexander Zosel marks the beginning of the Volocopter test flight program, which will be conducted in three phases. In the first flight phase, flights at a speed of 25 km/h maximum at low altitude are planned. In the second testing phase, flight maneuvers at a speed of 50 km/h at medium altitude will be executed. Test flights within the third testing phase aim to validate the system at higher altitudes and in the full speed range of the VC200 up to 100 km/h.

Unmanned Test Flights as a Precursor for ‘Permit-to-fly’
In the run-up to receiving the ‘permit-to-fly’, the e-volo team had gathered experience in over 100 test flights. With the help of a professional remote control, the team was able to carry out stress tests on the entire system and its individual modules and components. For instance, they switched off among other things, propulsion motors, batteries, as well as flight controls during flight. Testers also fed wrong information from simulated ‘defective’ sensors into the flight control system. Moreover, they carried out unmanned flights in turbulent weather conditions.
Thus, even before the market introduction of the Volocopter, e-volo has proven impressively that these aircraft can already fly almost autonomously today. But until autonomous flights are allowed, the international regulations have to be further adapted, a process that has already been taken up by politicians and the respective authorities.

Technical Description of the Volocopter
The Volocopter is made of a light-weight, fiber composite material. In addition to cruise flights, it can also take-off and land vertically as well as hover in the air. The VC200 Volocopter runs on all-electric motors. The electric motors of its 18 rotors are powered by nine independent batteries. When in a floating state and with a 450 kg take-off weight, the VC200 requires about 50 kW, depending on the air pressure / temperature. Its redundancy concept ensures stability, even if parts of the system were to fail. This principle is used in all system components that are necessary for safe flights. The necessary thrust required to provide lift is achieved through several independently driven rotors, each with two fixed blades. Unlike a helicopter, the blade angle on the VC200 cannot be adjusted. The amount of thrust produced depends solely on the rotation speed of the rotors.

Appropriate combination of the torques produced by the speed differences of the individual rotors around the vertical axis (yaw) and perpendicular to it (pitch and roll), as well as alterations in the total thrust produced by all the rotors enable the Volocopter to maneuver in all three rotational degrees of freedom (pitch, roll, and yaw), whereas the fixed setup of the rotors allows for one translational movement (vertical, “up/down”). In combination with the position angle, the Volocopter is able to make indirect horizontal flight movements in addition (“forwards/backwards” and “rightwards/leftwards”) and thus controls all six rotational and translational degrees of freedom.

Although the Volocopter initially exhibits what would seem to be unstable flight characteristics due to its relatively high number of rotors that have a fixed blade angle, its multi-redundant flight control system ensures precise attitude control and positioning stability. It is actually much more stable than conventional aircraft. It adheres to the pilot’s specifications and compensates for external effects independently. This makes flying it much easier, and the pilot can control the Volocopter safely, even in adverse environmental conditions.

The flight control system comprises of several completely independent units. Each flight control unit contains a complete set of positioning sensors that consist of pressure gauges, gyroscopes, accelerometers, and magnetometers for all three spatial axes. Each of the flight control units is able to control the VC200 independently. The Volocopter is operated with one hand using a joystick. The pilot intuitively controls all flight axes through movements and rotations of the joystick. Climb and descent commands are given through an altitude control thumb lever. In order to land, the pilot only needs to press and hold the lever down until the Volocopter is on the ground. Once it nears the ground, the control system automatically slows down the Volocopter to ensure a gentle landing.

Further information
 
Extensive photo and video material (footage/newscut) can be found here on the press portal.
Video clip from the first manned flight and a clip with interviews of the managing directors of e-volo, are available on our YouTube channel.
Further information on our website.


Contact e-volo GmbH Kathrin Mohr Östliche Rheinbrückenstraße 50 D 76187 Karlsruhe Telefon: +49 721 75 40 00-0 E-Mail: press@volocopter.com

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