Aircraft Design & Certification
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Nothing is more powerful than
an idea whose time has come.
Victor Hugo
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Your dreams deserve to come true.


Fascination for air and aviation, for man and machine, for creativity and complexity – this is the fuel that drives us.
Our core competence: we take responsibility for your aircraft, from design to certification.
What we get started will get airborne.

Click here for past projects Find out who is behind it!



You want it to fly and to be fast? Is your project in need of a precise process?

With our wide experience in aviation and the use of state-of-the-art design methods, we can offer you an extensive range of design services.

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Is your aircraft in need of a modification? Is your aircraft not yet certified at all?

Being an EASA approved Design Organisation, we have been leading certification efforts for airplanes, airplane parts and propellers, since 2005. Our vision: "a certification factory".

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Load Assumptions

Aircraft Load

The safety and stability of an airplane is evaluated by structural tests and analysis.

Based on analytically verifiable methods, we produce loads from aerodynamics to single components – for any configuration – always keeping in mind certification.

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Cabin Interior

Galleys, lavatory, stowages and overhead compartments. All cabin interior need structural substantiation, deflection analysis and interface load verification.

AD&C supports the design and verification of cabin structural elements and their integration for several customers and operators/airlines.

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Lightwing AC4 (CS-LSA)

Lightwing AC4

  • CS-LSA type certification
  • Rotax 912i (fuel injection)
  • AC4-GT (915 and airtow)

AD&C involvement:

  • Type Certification 2012- June 2014
  • Responsible DOA / Initial Airworthiness
  • Major Change AC4-GT

The project:

Light Wing AG is a company based in Stans, Switzerland. They aim to provide an airplane in the new CS-LSA category with the very low fuel consuming Rotax 912iS engine installed. The design philosophy of the Lightwing AC4 (as this airplane is called) is based on the design of a very successful Ultralight, the Comco Ikarus C42.

AD&C performed the type certification of this product and has received the EASA approval on 17.06.2014 as first type certified aircraft with the 912iS engine.

The tasks of AD&C mainly included:

  • Adjusting the design to match the requirements of this type of airplane in terms of strength, safety, operation
  • Performing analysis to determine the loads acting on the airplane as well as assessing the structural soundness of the design
  • Ground tests to confirm the strength of the individual parts
  • Flight tests to determine whether the airplane is safe in all possible situations
  • Liaising with the authorities to facilitate the process of certification
  • Demonstration of compliance to applicable requirements

AD&C has transfered the Type Certificate to Light Wing AG which will maintain the continued airworthiness of the AC4 and of course answer the questions and change requests of the customers. The AD&C DOA will support the Light Wing AG in the course of fullfulling the obligations of the TC holder.

Further information about the product you can find here.

Documents Lightwing AC4

pdfEASA Type Certificate72.11 kB

Products - Change and Repair

  • Extra 300

    towing weight
    up to 1000 kg
    Extra 300
  • Blanik L13

    up to 5000 operate hours
    excluding aerobatic
    Blanik L13
  • Ventus cM

    steerable tail wheel
    Ventus cM

  • Jodel DR1050

    shoulder harness
    Jodel DR1050
  • D4 Fascination

    D4 Fascination

From Concept

to Certification.

Contact us!