Abstract: A diving fairing to be used with a front-end rigging in a seismic survey system, the diving fairing including a body extending along a longitudinal axis X; a first through passage formed along a transversal axis Y, which is perpendicular on the longitudinal axis X; and a second through passage formed along the transversal axis Y, offset from the first through passage.

Abstract: A diving fairing to be attached to a line of a seismic survey system, the diving fairing including a body extending along a longitudinal axis X and having a passage formed along a transversal axis Y, which is perpendicular on the longitudinal axis X; and a first weight located on the body. The body is symmetrical relative to the longitudinal axis X and the first weight is distributed along the body asymmetrically to exert a torque relative to the passage that creates a non-zero angle of attack of the body with a horizontal direction.

Abstract: A towable and steerable elongated float for a marine seismic source arrangement for use in making a seismic survey at sea, having first attachment means at a lower or bottom part of a float body for allowing at least one seismic source to be suspended from the float, and second attachment means on a fore part of the float body for attachment of a strength taking source towing line or umbilical. The float body comprises first and second elongated steering foils being attached to and spaced from respective port and starboard sides of the fore part of said float body by respective support arrangement. The steering foils have respective longitudinal steering foil axes being oriented in a direction substantially perpendicular to a longitudinal axis of the float body and so as to be substantially perpendicular to a sea surface when in use, the elongated steering foils having respective first and second chord axes.

Abstract: A towable and steerable elongated float for a marine seismic source arrangement for use in making a seismic survey at sea, having first attachment means at a lower or bottom part of a float body for allowing at least one seismic source to be suspended from the float, and second attachment means on a fore part of the float body for attachment of a strength taking source towing line or umbilical. The float body comprises first and second elongated steering foils being attached to and spaced from respective port and starboard sides of the fore part of said float body by respective support arrangement. The steering foils have respective longitudinal steering foil axes being oriented in a direction substantially perpendicular to a longitudinal axis of the float body and so as to be substantially perpendicular to a sea surface when in use, the elongated steering foils having respective first and second chord axes.