The Future is Now

Urban air mobility, transport and surveillance - Efficient. Innovative. Safe. Sustainable. Versatile.



30 % more speed and range as comparable aircraft


Due to safe low-speed flight capability

Independence of
long airstrips

Take-off and landing on 50m short runways with 40km/h or less


Extremly safe, due to independency of the rotor from the engine (autorotation) and benign flying characteristics

Low noise

Significantly quieter than comparable helicopters and multicopters

Various driving

Full flexibility to fit alternative power sources, such as batteries, fuel cells or hydrogen


Personal Mobility


— your own aircraft
— personal mobility over a distance of 600 km
— enormous time saving
— independency of traffic during rush hours
— 600 landingspots in Germany
— connecting cities and remote locations
— professional training and service

Aerial Observation


— monitoring of energy networks (powerlines, pipelines, etc.)
— monitoring of industrial applications (solar powerplants etc.)
— search and rescue
— scanning remote areas
— disaster relief
— border controls
— piloted or autonomous operation
— sensor bay for various applications

Commercial Passenger Transport


— use on demand (Air Taxis)
— daily supply of remote areas
— hub-to-hub service
— high payload capacity
— suitable for distances from 10 to 600km
— technology is compliant with todays regulations

Commercial Logistic Transport


— high performance autonomous logisitic solution
— daily supply of cities and remote areas
— hub-to-hub service
— high payload capacity
— suitable for distances from 10 to 600km
— technology available but still dependent on local regulations
— efficient, low noise, safe and autonomous operation
— ready for operation within several hours almost everywhere


A technology developed for building
the safest aircraft generation


Tensor was designed by using state of the art aerospace technology


Fraundorfer Aeronautics invested seven years and 20k man-hours into research of autorotational systems. Mathematical systems have been developed to describe the aerodynamics and make highly efficient airfoil design possible. CFD-Analysis was used to reduce fuselage drag and compare developed rotor airfoils against standard geometries.

The autorotation - a principle designed by nature


Nature uses the principal of autorotation already for a long time. Maple seeds are a prime example of this. Getting behind the secrets and improving existing technological achievements is a challenging task – we gratefully accepted.


    You're interested in the Tensor 600X? Get informations here!

    Applied Bionics - The Innovation

    Our rotorsystem uses the energy contained in the air stream to drive the rotor, as the maple seed does. This makes our system independent of the engine and therefore extremely safe. It took seven years of research to fully understand the autorational principles and develop mathematical systems to design our efficient rotor blade (patent registred).

    The shift of critial areas of application

    Target working range for airborne data acquisition Tensor enables you to fly safely, efficiently and above all cost-effectively in the optimum working range for data acquisition.
    from 180 € / h (-600X)
    Range of safe flight conditions. Below approx. 100 km/h a stall occurs and the aircraft crashes. Because of the high minimum speed, an aircraft can hardly avoid obstacles and therefore cannot fly lower than approx. 100 meters.
    from 150 € / h (single engine airplane)
    Range in which a helicopter can fly safely. In this range it is possible for the helicopter to achieve autorotation and emergency landing in case of engine failure. It may therefore only be operated here, but not within the "dead man's curve"*.
    from 450 € / h (single engine helicopter)
    In the area of the "dead man's curve" if a helicopter's engine fails, it would no longer reach the autorotation state and would therefore crash.


      You're interested in investing in us? Get the business- and investment plan now!


      Independency of driving technologies


      Due to a single propeller connected to a central located engine, Tensor is able to be fitted with different types of driving engines. When the technology progress allows, electric or H2 driven motors are a viable alternative to conventional chemical systems.

      1/3 drag compared to multicopter and 1/2 drag compared to helicopters make Tensor then the most efficient extrem short take-off and landing system available to implement all electric aerial transport.



      Latest Updates

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      September 2020

      Fraundorfer Aeronautics has entered into a strategic partnership with engineering services company Uedelhoven Studios, with the aim of bringing its newly-developed Tensor 600X aircraft into series production and further develop it for commercial use.

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      March 13th 2020

      The Tensor 600X" has successfully completed its maiden flight. During the approximately one-hour flight, the aircraft reached speeds of up to 130 km/h and flight altitudes of 500 meters..

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      March 3rd 2020

      Handelsblatt article in the category "Family business of the day" about Fraundorfer Aeronautics and the Tensor 600X.

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      December 2019

      After many years of development and successfully passing the ground tests, we received the permit to fly (VVZ) for our Tensor 600X in December 2019.

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      September 23rd 2019

      Fraundorfer Aeronautics in the current special edition of the GendairkingerNews.

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      August 12th 2019

      Fraundorfer gets international attention through the renouned magazine FlightGlobal International. Read more...

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      May 24th 2019

      TENSOR 600X - Technology Demonstrator roll out and presentation at Airport Genderkingen with 200+ guests.

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      March 18th 2019

      Nomination for the German Aviation Innovation Award.

      Interview with the magazine Handelsblatt

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      March 18th 2019

      First complete assembly of fuselage, wings, doors and windows.

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      December 06th 2018

      Thermoforming of the Plexiglass windscreen. Some difficulties with cracks occurring during the forming process had to be solved.

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      November 26th 2018

      Moulds of wings and internal parts are being collected from the manufacturer CNC Lapp, who is able to produce oversized moulds.

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      November 24th 2018

      Machining of doorframes out of Ureol block material. Doorframes are made out of carbon with a foam core.

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      July 19th 2018

      Rotors are equipped with a set of DMS for in flight testing of stress, torsion and dynamic loads.

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      July 3rd 2018

      Motor implementation on a special motor testing rig to figure out placement and available space for additional motor equipment.

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      January 17th 2018

      Purchase of a Magni M16 to perform all relevant rotor tests. It will be equipped with sensible test equipment to track all relevant flight performance data.

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      December 13th 2017

      Machining of the ergonomic model for fitting purposes of seating, cockpit instruments, steering and electrical systems as well as evaluating visibility and setting up doors and windows.

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      October 16th 2017

      First ground tests of the R01 rotor system are completed and showing very promising results<

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      April 10th 2017

      First complete rotor R01 assembly with rotorhead and balancing the system.

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      September 28th 2016

      Stress test of rotor head assembly and rotor blade root as a system has took place with our partner in Oldenburg. Under the observing eye of the certification authority the rotor system passed all critical load configurations.

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      July 11th 2016

      Applying torsion load onto the rotor blade of the first prototype rotor and comparing the measurements with calculated values.

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      April 8th 2016

      Manufacturing of the first prototype rotor blade in cooperation with Kasaero GmbH in Ulm. Rotor blade is constructed with a foam core, carbon top layers and glass rotor blade root.

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      OUR TEAM


      For further information about our core team or the advisory team, feel free to contact us.

      Christoph Fraundorfer
      Christoph Fraundorfer
      Chief Executive Officer
      • Aerospace engineer
      • Graduate of the British „Empire Test Pilots School”
      • 25-years of experience in aircraft design and management of aviation projects
      Christina Biermeier-Keller
      Wilfried Kerper
      • Specialist for process optimization and airworthiness certification with 20 years of experience
      • Pilot and technical pilot for over 20 years on B777 / B767
      Bianca Westphal
      Robert Haag
      • Mechanical engineer
      • Former technical leader of “Ziegler Spezialfahrzeugbau”
      • Pilot and flight instructor for more than 20 years
      Christoph Fraundorfer
      Dennis Brass
      • Aerospace engineer
      • Specialist for light weight construction and fiber reinforced composites
      • Computer aided design and stress calculations
      Christoph Fraundorfer
      André Zöbisch
      • Aerospace engineer
      • Specialist for aerodynamics and airfoil design
      • Designed the first airfoil family for rotors operating in autorotation
      Christina Vogl
      Christina Vogl
      • Legal studies
      • Event manager
      • Focus Events & Marketing
      Christina Biermeier-Keller
      Christina Biermeier-Keller
      • 10 years experience in accounting and personnel accounting
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