ro_home1.gif
fildegr1.gif
ro_history1.gif
gilles2vvv.jpg
The original idea
by Gilles Vaton
ro_concept1.gif
ro_technic1.gif
ro_office1.gif
The BGV high-speed vessels have an original design conception which has been subject to registered drawings and patenting for some time.
A successful combining of stability and slender lines is the hallmark of the concept:

1. A central hull with very fine water entry, tapered shaping and reduced beam.

2. Rear stabilisers providing double lift:
- ground effect is set up as air is channelled through the archway that is formed horizontally by the link-arm (positive incidence) and vertically by the plating of the main central hull and the inside face of the outrigger, thus creating positive lift that reduces the vessel’s effective weight. The NACA-type profile of the link-arm induces aerodynamic depression on its topside resulting in added lift and a further lightening effect on the vessel.
- the foils associated with small lateral outriggers also lighten the vessel, in proportion to the square of its speed.

Compared with catamarans - currently the only alternative to monohull high-speed craft - the outriggers and their moveable ailerons create a very long rolling period, and ‘playing’ with the angling of the ailerons can further reduce rolling remarkably. The result is increased safety combined with added passenger comfort in all sea conditions.
The very shaping of the lateral outriggers - front-end with a pronounced, fine V-shaped bow and positive trim - contributes to the damping of both lateral and longitudinal vessel movements whilst providing virtual auto-stability with speed variation.
The vessel’s speed capability - up to 65 knots (120 kph) - is to a large part due to the above design features: factors that indicate that attaining high speeds is no longer simply a matter of engine power, a vessel’s chosen motorization.
bgv_struct4r.gif
ro_passengers1.gif
bgv_composite3nr.jpg
ro_freight1.gif
ro_military1.gif
ro_yachts1.gif
ro_innovation11.gif
ro_others1.gif
ro_press1.gif
ro_contact1.gif
bgv_vague40n.gif
ro_links1.gif
ro_map1.gif
ro_videos11.gif
dcn3v.jpg
ro_innovation1.gif
ro_videos1.gif
log_bgvdesign1r.gif
fildegr2.gif
bgv design  - 9 bis, rue Protis - 13007  Marseille  - Téléphone : +33 (0)4 91 54 00 00 - Fax : +33 (0)4 91 54 82 40
bgvdesign.com
bgv140_4v.gif
bgvn133_5v.gif
persp_avt_anonyme1v.gif
The concept
To sum up, five technological features characterize the BGV concept:

An active reduction in hydraulic and aerodynamic drag.
Surface effect and air channelling in the hull-outrigger archways to increase vessel stability.
Adjustable foils to further enhance good stability.
Outriggers to reduce rolling to permit all-weather sailing.