Stroboscopie pour étude de palmage - 1994
Banc de requins gris - Fakarava -Tuamotus - 2015
Crabe des Galapagos - 2010
Jeune fou pattes rouges - Los Aves - Venezuela 2013
Pélican - Los Roques - Venezuela - 2013
Dérive cloche sous marine - océan Indien - 1998
Prao Rosières - 1982
Prao Pacifique Montpellier Languedoc Roussillon - 1986
Atoll Los rocas - Traversée Atlantique Sud en ULM - 1991
Traversée Atlantique Sud ULM - Arrivée Fernando de Norohna - 1991
Traversée Atlantique nage et dérive - 1995
Los Llanos - Venezuela 2013
Tête tortue verte - Isabella - Galapagos - 2014
Dolphins - Atlantique - 2012
Tête d'Anaconda - Los Llanos - 2013
Prao Funambule - recordman du monde de vitesse open - Brest 1981
Jeune frégate - San Cristobal - Galapagos 2014

« When the last tree is cut, the last fish is caught, and the last river is polluted; when to breathe the air is sickening, you will realize, too late, that wealth is not in bank accounts and that you can’t eat money »
proverbe indien d'Amérique








   G.D. has spent many years in the field building his various creations! The accumulated time spent on construction, by organizing a dedicated site each time, represents more than 10 complete years of life. Of course each time the minimum budgets have been followed by deplorable working conditions (lack of protection, infernal cadences, etc.)! However what satisfaction to make live these gears results of a  successful dream. 

. Proa Funambule:

The "canoe" of 17 m was built in Hennebont, in 5 months, in a hangar waiting for demolition.This was Guy's first major successful construction project.

f1funambulemannequin copier

The building frame of Funambule proa 1980

La mise à l’eau de Funambule sur le Blavet à Hennebont

Launching of Funambule proa on river Blavet , town of Hennebont, south of Britain 


. Proa Rosières:

   Hosted in the first site of Multiplast in Carquefou, Guy started the Rosières building alone, before regrouping a small team of friends (Nordahl Mabire, Jean-François de Prémorel, Frédéric Guérin, Robert Canet) to help to repair errors of the architect Ollier. These terrible structural and hydrodynamic errors will considerably delay the project which had contractually to be on the starting line of the Route du Rhum! This lack of preparation will be sanctioned by  the "folding" of the proa at the start of the "Rhum"!

Stratification de la coque de Rosières. Ollier s’est lourdement trompé sur les échantillonnages et il faudra la renforcer considérablement lorsque l’on s’en rendra compte alors que le prao est presque terminé 

Lamination of Rosières ‘s hull. Architect Ollier has made a lot of mistakes on the sampling and we will have to strengthen it considerably when we realize it... when the prao is almost finished.

Les différentes pièces de Rosières peu de temps avant leur transport pour assemblage sur un quai de Nantes !

 The various pieces of Rosières shortly before their transport for assembly on a quay of Nantes!


. Proa Montpellier Languedoc Roussillon:

Close from Montpellier Guy Delage installed the "Must" shipyard site to ensure the construction of this high-tech sailing ship far ahead of its time! Integral wing, totally carbon balestron, automatic adjustment  of the ballast, two T- shaped foils controlled by the backstay tension, etc. This sailboat was a sum of innovations put into music by Hervé Devaux and Gilbert Saint Blancat!

It is regrettable that the mayor of Montpellier did not understand that the development of this kind of project can not be done in some days !

 Finition de la coque principale du grand prao MLR

Fairing of the main hull of the big MLR


Les bras sont en sandwich dont l’âme est en mousse de Rohacell (méthacrylate). La mousse a été formée à chaud dans moule et contremoule

The arms are sandwiched whose core is made of Rohacell foam (methacrylate). The foam was formed hot in mold and countermold.


 Coque bras, flotteurs sont presque terminés. La construction du gigantesque mât aile commence

Hull arm, floats are almost finished. The construction of the gigantic wing mast begins.


Le flotteur est transporté pour être assemblé avec le reste de la structure près de l’eau

 The float is transported to be assembled with the rest of the structure near the water.



. Catamaran Itzamma:

Construction in traditional sandwich (Corecell foam- vinylester resin -fiberglass) realized in two and a half years. Helped sometimes by some friends of whom François Kremer, it is in the Seyne sur mer town that this construction took place!

For Erik Lerouge, the architect, the quality of construction of Itzamma is a reference !

G.D. also realized the carbon mast. If you would like to know more about the construction methods:



Les moules en cours de réalisation

Making the mold


Le modèle du roof est achevé

roof model is ready.

Le cockpit et ses tables télescopiques pliables sont réalisés à l’extérieur de la structure

    The cockpit and its foldable telescopic tables are made outside the structure


 La table sandwich carbone du carré en cours de réalisation !

Carbon and foam table ready to be glued together.




. Monohull Dagda:

   The original "architect" Julien Marin having made serious mistakes in his plans ! G.D. and Manu Alban corrected  (before it was too late) all the calculations both hydrodynamic and structural of the sailboat! These errors cost two years of modification of the shape and structures in the construction which lasted 6 years!

   It is the first sailboat built in Strip-planking by Guy. Wood was preferred to foam for its impact resilience as part of a navigation program that incorporated Antarctica and the risk of impacting growlers! Dagda had been designed closely unsinkable to favor the survival of the crew in case of shipwreck in the fortieth! The carbon mast was built like that of Itzamma (vacuum on a polystyrene male plug). The lifting keel that allowed access to shallow depths (1.5 m) was powered by a 4/4 winch. The sailboat was weighed permanently during the construction in order to situate the CG in relation to the buoyancy center.

   The sailboat was powered by two very reliable electric motors supplied by Homewood company, part of Westinghouse.

Les coffres arrières avec le suport de pilote

The rear trunks with the pilot suport

Les erreurs de l’architecte Marin ont obligé à rajouter une jupe pour rééquilibrer les centres !

The errors of the architect Marin have forced to build a stern add on to rebalance the centers!

Dagda est facilement retourné en une matinée

      Dagda easily returned in a morning 

 L’architecte ayant prescrit un cône mors comme tête de dérive, il a fallut refaire la conception totale de cette partie fondamentale de la quille relevable si l’on souhaite pouvoir la relever !

The « architect »who prescribed a cone bit as head drift, it was necessary to redo the total design of this fundamental part of the lifting keel if one wishes to raise it!

 la première peau du voile de quille !

First epoxy glass skin of the keel

 65 pieds, représente un long travail et un grand nombre d’heures !

65 feet of boat is a lot of labour work !




. Yole  : a rowing sailing boat:

This traditional shape design by G.D. is built in exotic materials allowing it to move very little water!

A mold is made, allowing the production of other hulls!

For more information: contact

Les couples coupés CNC sont en place. Le bordé en lattes de Cp monte doucement.

  CNC cut couples are in place. The planked edge of plywood  rises  slowly

La yole est bordée Cp.

     The yole is lined plywood.

Finitions extérieures du bordé avant de tirer un moule et de la retourner !

    Exterior finishes of the plating before pulling a mold and turning it over !



. Swimming raft:

Designed by Gilbert Saint Blancat, this raft was made partly by Guy Delage (model and tools) and by Thierry Elluère for the prototype that crossed the Atlantic. "Work of art" built in sandwich carbon by T. E. well known for the quality of his production in the world of racing boats racing, this raft perfectly fulfilled its mission of accompanying the swimmer across the Atlantic!

Sa très faible vitesse obligeait à d’immenses appendices pour qu’il puisse suivre la trajectoire imposée par le nageur

Its very low speed required huge appendages so that it could follow the trajectory imposed by the swimmer.

. Swimming float:

Guy Delage's safety float crossed the Atlantic by being pushed for 55 days. Built in carbon, this small waterproof float was a nest of technology integrating both Guy Delage's satellite transmission systems, safety (mini life raft) and the ability to swim without adding too much drag!

Dans ce flotteur, il y avait les systèmes de sécurité ultime du nageur ainsi que les systèmes de transmission automatique des données corporelles du nageur

     In this float, there were the swimmer's ultimate safety systems as well as the swimmer's automatic body data transmission systems

. Microlight aircraft for Atlantic crossing:

This innovative microlight aircraft in1989 was designed by Guy Delage. The tools (model and mold) were built by the Carmagnani yard (since disappeared) and it was G.D. who built the two carbon prototypes - Nomex (honeycomb) and Airex foam. The first shell weighed 75 kgs, the second that crossed the Atlantic weighed about 52 kgs.

Essais de chargement maximum du prototype

Maximum loading tests of the prototype

. Kayaks:

In 2016, Guy and Larysa build 2 sea kayaks. Big carriers for long expeditions, they allow to remain a long time autonomy and to carry a lot of material! Their substantial stability does not allow them to eskimo. They are constructed of carbon- CPs.

Les deux kayaks en construction (CP carbone époxy)

Both kayaks in construction (CP carbon epoxy)


. Microlight aircraft hydro hulls:

In 1987 Guy develops a hull destined for the "Baroudeurs" and "Maestro" microlights! Amphibious with a retractable train, it allows him to take off from the Larzac to join some Spanish islands or simply the damp lakes of Languedoc Roussillon!

Here again, it is a foam sandwich from Airex, epoxy glass that achieves the minimum weight and resistance objectives imposed by the specifications!

At this point, he also developed a hull for Mr Delpech's amphibious tandem biplane Transat.

Installation de la coque N°2 de série

Installation of the hull N ° 2 of series

Posé sur la Charente à Rochefort pour aller visiter la construction de l’Hermione à La corderie Royale

 Landed on the Charente in Rochefort to visit the construction of  the old warship  "Hermione" in front of La Corderie Royale

. Floats for flying wings and and hydro ULM:

In order to apply the patent filed in 1988 with the assistance of ANVAR, G.D. designs, designs and builds a range of floats for microlights rikes and flying wings. It is the Feuillette establishments that obtain the manufacturing  license. These floats are very resistant and have exceptional performance!

Flotteurs décollant vite et présentant un bon Cx


. Ski system: 

Systèmes développés pour les ets Chapelet à Heric.

Systems developed for ets Chapelet to Heric