Nautica Digitale
Share this page
Tell a friend

Spring 2007

Article selected from our quarterly magazine dedicated to the largest and most luxurious boats with information, interviews, technical articles, images and yachting news



Yachting catalogue

Navigation tests

Used boats


Video Nautica

Article by
Daniele Carnevali


When architects "dare", when they put forward new lines, new living space solutions, they do so because the technology that will back their aesthetic or functional choices is available. It is the kind of technology which comes from small artisans who run thriving businesses in Italy, the same that have been able to cut a niche out for themselves through their accurate and specialised work, small to medium sized companies operating closely with the technical divisions of the yards and of course with naval architects.


OPAC hydro-electric sun-cover

OPAC hydro-electric sun-cover

OPAC hydro-electric sun-cover

OPAC hydro-electric sun-cover

OPAC hydro-electric sun-cover

For further information please contact: OPAC S.r.l. - Via Bruino, 26 - 10040 Rivalta di Torino (TO) tel. 011 9038581 fax 011 9031875 Web site: E-mail:

This is exactly what has happened with OPAC which is specialised in producing custom built protections on their own design, as well as hard top coverings of various shapes for open hulls and yachts of all sizes, even particularly large ones. The Turin based company has in fact presented a very interesting project which changes the angle in terms of how open spaces on boats are perceived. The same spaces which, all the more increasingly, need to be comfortable and protected albeit being in the open. OPAC has hence invented the "extractable sun-cover". The system happily folds away without compromising the aesthetics of the yacht by disappearing completely into its housing cleverly placed either on the underside of the hard-top or under the superyacht's 'fly'. The canopy may be "fanned" out of its aluminium structure thanks to the parallel rails on either side of it. The inner mechanism hinges on four rollers which activate its central body. The inner rack trolley, is comprised by an aluminium housing holding seven rotating arms which carry the canopy structure. A hydro-electric console controls the exit of the canopy out of its housing through a hydraulic piston. The console and its sensors also monitor operating speeds ensuring precision and stability in order to avoid bumping and jarring taking place within the structure. The rotating movement of the arms forces the canvas to extend itself facilitating the exit of the other arms to which it is attached. The canvas thus resembles a fan-like semi circular form. The outer casing of the system is wedge-shaped and the front part is made wider in order to facilitate the folding procedure of the canvas upon re-entry. During this phase the cylinder which controls the whole movement retreats with the rotating arms folding as the canvas returns inside the housing.