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Open minded visitors : Welcome to this site

   You will discover that, such as birds and for reasons of safety, comfort and performance, the aerodynamical logic of an aircraft is to have ‘free’ wings, always parallels to airflow and, due to the very understandable plans, you will have pleasure in building rapidly this concept, largely tested since very long time.

So… Thanks for your lucidity and ‘Welcome aboard’ !

Bernard Geffray
Designer of the Spratt 103 

The simplest (200 h of construction), the safest (no stall or spins, absorb turbulences and absolutely reliable) and the most economic of all aircraft (less than 4.000 $, with new 4 stroke injected engine)

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Due to its specificities, the Spratt 103 concept is protected by 5 patents with the INPI as well as by copyright in the 163 signatory states of the Bern Convention