A four-chamber inflatable kayak comprises an upper chamber, a lower chamber, connecting portions as well as two side chambers and two side coverings. The upper chamber and the lower chamber are streamlined with a wide center and narrow ends, and the outer portion of the two ends of the upper chamber and the lower chamber is connected to each other by means of a connecting portion. The connecting portion has two separate compartments that are separated from each other. Both ends of the upper chamber and the lower chamber are accommodated in the separate compartments in the connecting portion, so that a cavity with accommodating space is formed between the upper chamber and the lower chamber. The upper chamber comprises a cockpit hole disposed in the middle. The cockpit hole is communicated with the cavity.

A four-chamber inflatable kayak comprises an upper chamber, a lower chamber, connecting portions as well as two side chambers and two side coverings. The upper chamber and the lower chamber are streamlined with a wide center and narrow ends, and the outer portion of the two ends of the upper chamber and the lower chamber is connected to each other by means of a connecting portion. The connecting portion has two separate compartments that are separated from each other. Both ends of the upper chamber and the lower chamber are accommodated in the separate compartments in the connecting portion, so that a cavity with accommodating space is formed between the upper chamber and the lower chamber. The upper chamber comprises a cockpit hole disposed in the middle. The cockpit hole is communicated with the cavity.

Disclosed herein is an aquatic towable device comprising a body, a towline connector, a rudder fin, and a steering apparatus. The towline connector is placed at one end of the body and above a waterline of the body when the device is occupied by a passenger. The rudder fin is attached pivotably to an underside of the body and placed toward the towline connector and positioned so at least part of the rudder fin will be underwater when the device is occupied by a passenger. The steering apparatus is attached to the rudder fin that pivots the rudder fin and is accessible from a top side of the body.

Disclosed herein is an aquatic towable device comprising a body, a towline connector, a rudder fin, and a steering apparatus. The towline connector is placed at one end of the body and above a waterline of the body when the device is occupied by a passenger. The rudder fin is attached pivotably to an underside of the body and placed toward the towline connector and positioned so at least part of the rudder fin will be underwater when the device is occupied by a passenger. The steering apparatus is attached to the rudder fin that pivots the rudder fin and is accessible from a top side of the body.

The invention relates to an inflatable watercraft which consists of at least two inflatable parts that are joined together by means of holding strips or the like under preload. The invention also relates to a method for producing said inflatable watercraft and a gluing table that can be used in the production of the watercraft.

Embodiments are directed to a hybrid frame boat. The hybrid frame boat may include a cover and a drop-stitch port bladder, a drop-stitch starboard bladder, and a keel beam that may each couple to the cover. The cover may have an aft end portion, a forward end portion, a port side, a starboard side, a longitudinal length extending from the aft end portion to the forward end portion. The drop-stitch port bladder may extend along one or more portions of the port side of the cover. The drop-stitch starboard bladder may extend along one or more portions of the starboard side of the cover. The keel beam may extend along one or more portions of the longitudinal length of the cover between the drop-stitch port bladder and the drop-stitch starboard bladder.

Packrafts are disclosed that include an inflatable, tubular packraft body having a bow, a stern, and a midsection, and a floor portion joined to the packraft body to define a central seating area. In these packrafts, the stern comprises a center panel joined to a pair of side panels such that the stern has a generally frustoconical shape. This stern shape provides the packraft with enhanced handling characteristics, particularly in whitewater.

A collapsible folding boat that includes two or more hulls. The individual hulls can either be directly connected together or connected using one or more structural members. In addition, the multiple hull folding boat can make use of inflatable air chambers and/or rigid components as part of its final assembly. The multiple hulls of the multiple hull folding boat can also be separated for use as individual collapsible boats. The multiple hull folding boat can include one or more seats for use by persons in the boat, and these seats can be placed in a lateral or longitudinal arrangement. The multiple hull folding boat also includes a removable floor design to present a dry floor to the inside of the boat.

The present disclosure relates generally to knee braces for boats. The knee braces described herein are particularly suitable for use with lightweight, inflatable rafts and kayaks, for example packrafts used in backcountry boating. The knee braces include a fabric body and a plurality of adjustable straps configured to attach the fabric body to a side wall of the boat.

A pedal assembly and steering assembly are disclosed for converting an inflatable, drop stitch paddle watercraft into a pedal watercraft. The pedal assembly includes a mounting plate and mounting bracket for supporting a geared drive shaft in an opening extending through the floor of the watercraft. The steering assembly includes a rudder connected to a tiller through push pull cables.