A technology platform for a completely new, more efficient and sustainable generation of aircraft.



30 % more speed and range as comparable aircraft


Due to save 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 characterisitcs

Low noise

Significantly quiter than comparable helicopters and multicopters

Various driving

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

The perfect solution for many different and diverse areas of use



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



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.

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).

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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 23th 2019

Fraundorfer Aeronautics jetzt in der aktuellen Sonderausgabe der GendairkingerNews ..

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August 12th 2019

Fraundorfer bekommt internationale Aufmerksamkeit durch das renommierte Magazin FlightGlobal International. Mehr lesen...

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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

Nominierung zum Innovationpreis. Mehr lesen...

Interview Handelsblatt. Mehr lesen...

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

Christoph Fraundorfer
Christoph Fraundorfer
  • Aerospace engineer
  • Graduate of the British „Empire Test Pilots School”
  • 25-years of experience in aircraft design and management of aviation projects
Christoph Fraundorfer
André Zöbisch
  • Aerospace engineer
  • Specialist for aerodynamics and airfoil design
  • Designed the first airfoil family for rotors operating in autorotation
Christoph Fraundorfer
Dennis Brass
  • Aerospace engineer
  • Specialist for light weight construction and fiber reinforced composites
  • Computer aided design and stress calculations
Bianca Westphal
Robert Haag
  • Mechanical engineer
  • Former technical leader of “Ziegler Spezialfahrzeugbau”
  • Pilot and flight instructor for more than 20 years
Judith Schneid
Judith Schneid
  • More than 10 years experience in back office and human resources management
Christina Biermeier-Keller
Christina Biermeier-Keller
  • 10 years experience in accounting and personnel accounting
Klaus-Peter Leinauer
Klaus-Peter Leinauer
  • Aerospace engineer
  • Private pilot for more than 20 years
  • More than 20-years experience in sales and product management in the international aerospace industry, with focus on aftermarket services and passenger and special mission aircraft
Klaus-Peter Leinauer
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
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