Technology and Safety

Our microlights and light aircraft are built using technologies and materials that have been tried and tested over al long period of time.

Tubes are made from chrome molybdenum vanadium steel, soldered for the fuselage, landing gear, the engine mounting and the different controls.
Anti-corrosion treatments, after a surface treatment, a powdered paint is applied to the body after baking at 250°C which ensures almost limitless life-long protection.
Sheet metal and light alloys 2017 and 2024 for the wing structure, spars and the skin of the fuselage.
Composite materials, lightweight closed cell foam (Herex) + aluminium for the ribs.
Traditional composites, for the hooding and the forward covering of the fuselage.
Coverings are in Dacron covered in several coats of anti UV polyurethane lacquer.


TETRAS structure

Wing structure

These materials, although they are traditional, are made using the very latest techniques and all follow the latest aeronautical standards. Perfectly applied and following all the rules, they guarantee exceptional strength and a very long life span (some planes built over fifty years ago using these techniques are still flying today). In addition repairs are easy if you know how and are long lasting. This technology, aside from its remarkable attested balancing of weight / robustness / longevity, also manages excellent resistance and shock absorption which contributes to the greater safety of the plane's occupants.


A wealth of detail bears witness to very real
know-how.

Structural tests


Resistance test +6 G

All our microlights, before being put on the market, undergo structural resistance tests on out test bed in accordance with the JAR VLA aircraft standards. Tests to destruction are also carried out on safety or linking parts.

Quality control

Our business has put in place a permanent quality control plan designed to cover all of its production, it breaks down into 5 sectors of activity and covers more than 300 checked areas.

Flight trials

For each plane, before delivery, we undertake 5 to 6 hours of test flying and adjustments. Many hundreds of TETRAS and MDC are at present in service in France and throughout the world. We estimate that our planes together have about 210 000 flying hours, and this information proves that our microlights really are, well made.



TETRAS & MDC toutes versions Airworthyness Certificate
Concerns :
Revêtement de bord d'attaque
Date of issue :
25 Août 2008


TETRAS 912 B - BS - CS Airworthyness Certificate
Concerns :
Pompe à essence
Date of issue :
04/09/2007


ULM TETRAS Airworthyness Certificate
Concerns :
Décanteur essence
Date of issue :
15 02 2007