Image Number 3 for United States Patent #4294184.
A multi-hull craft steering system having a plurality of hulls made from flexible envelopes inflated to maintain buoyancy. One of the hulls is located between the remaining hulls and is pivotally mounted for controlling the angular variation in azimuth. The hull is located ahead of the remaining hulls to permit rotation without interference. The hulls have a variable track wherein the distance between the outer hulls may be selected and locked. The craft is provided with a means for angularly rotating the outer hulls with respect to the longitudinal axis of the craft to permit first working position and a second stowed position.
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