Paravane for a barrier towed by a vessel

A method for deploying a barrier system from a boom reel, wherein the method comprises:

• reeling out the barrier from a boom reel by pulling an apex of the barrier away from the boom reel;
• reeling out a first end and a second end of the barrier;
• inflating the barrier;
• reeling out a paravane for a barrier towed by a vessel, from the boom reel, wherein the paravane comprises:
• a floating body;
• a main skirt suspended below the floating body, wherein the main skirt is defined with a longitudinal direction between its front end and its rear end;
• an upper lamella having a first point secured to the front end of the main skirt, a second point secured to the rear end of the main skirt and a third point provided at a distance from the main skirt;
• a lower lamella having a first point secured to the front end of the main skirt below the upper lamella, a second point secured to the rear end of the main skirt below the upper lamella and a third point provided at a distance from the main skirt;
• a front towing interface connected to the third point of the upper lamella and the third point of the lower lamella;
• wherein the floating body, the main skirt, the upper lamella and the lower lamella are made of one or more flexible materials;
• and
• wherein the upper lamella has a skirt facing edge defined as the edge between the first point and the second point, wherein the skirt facing edge is secured continuously or at intervals to the main skirt;
• wherein the paravane comprises at least one intermediate lamella having a first point secured to the front end of the main skirt between the upper lamella and the lower lamella, a second point secured to the rear end of the main skirt between the upper lamella and the lower lamella and a third point provided at a distance from the main skirt, wherein the third point is connected to the front towing interface;
• wherein the paravane comprises a plurality of stiffening plates fastened to the main skirt;
• wherein the stiffening plates have a height being lower than a height between the lamellae;
• wherein the stiffening plates are fastened to the main skirt between the lamellae;
• wherein the first end of the barrier is connected to a front towing interface of the paravane or to a rear towing interface of the paravane;
• inflating a floating body of the paravane;
• reeling out a first towing line and second towing line from the boom reel, wherein the first towing line is connected to the front towing interface of the paravane and wherein the second towing line is connected to the second end of the barrier.

A method for retrieving a barrier system from water, wherein the method comprises:

• reeling a first towing line and second towing line onto a boom reel, wherein the first towing line is connected to a front towing interface of a paravane for a barrier towed by a vessel, wherein the paravane comprises:
• a floating body:
• a main skirt suspended below the floating body, wherein the main skirt is defined with a longitudinal direction between its front end and its rear end;
• an upper lamella having a first point secured to the front end of the main skirt, a second point secured to the rear end of the main skirt and a third point provided at a distance from the main skirt;
• a lower lamella having a first point secured to the front end of the main skirt below the upper lamella, a second point secured to the rear end of the main skirt below the upper lamella and a third point provided at a distance from the main skirt;
• a front towing interface connected to the third point of the upper lamella and the third point of the lower lamella;
• wherein the floating body, the main skirt, the upper lamella and the lower lamella are made of one or more flexible materials;
• and
• wherein the upper lamella has a skirt facing edge defined as the edge between the first point and the second point, wherein the skirt facing edge is secured continuously or at intervals to the main skirt;
• wherein the paravane comprises at least one intermediate lamella having a first point secured to the front end of the main skirt between the upper lamella and the lower lamella, a second point secured to the rear end of the main skirt between the upper lamella and the lower lamella and a third point provided at a distance from the main skirt, wherein the third point is connected to the front towing interface;
• wherein the paravane comprises a plurality of stiffening plates fastened to the main skirt;
• wherein the stiffening plates have a height being lower than a height between the lamellae;
• wherein the stiffening plates are fastened to the main skirt between the lamellae;
• and
• wherein the second towing line is connected to a second end of the barrier;
• and wherein the first end of the barrier is connected to a front towing interface of the paravane or to a rear towing interface of the paravane;
• deflating a floating body of the paravane;
• reeling the paravane ono the boom reel;
• deflating the barrier;
• reeling the barrier onto the boom reel.