Apparatus and methods for controlling position of marine seismic sources

A marine seismic source, comprising:

• a float;
• a laterally rigid member supported by the float;
• a seismic source array including a plurality of source members suspended from the laterally rigid member;
• and
• an adjustment mechanism by which the marine seismic source may be towed, the adjustment mechanism:
• defining a swivel with the laterally rigid member by which the adjustment mechanism rotates relative the laterally rigid member in a lateral plane;
• and
• being capable of actively manipulating an angle of attack of the source array.

A marine seismic source, comprising:

• a float;
• a lifting body suspended from the float;
• a seismic source array including a plurality of source members, one of the source members being suspended from the lifting body and the remaining source members being suspended from the float;
• and
• an adjustment mechanism by which the marine seismic source may be towed, the adjustment mechanism:
• defining a swivel with the laterally rigid member by which the adjustment mechanism rotates relative the laterally rigid member in a lateral plane;
• and
• being capable of actively manipulating an angle of attack of the source array.