Variable overall hull lengths for watercraft

Abstract

The invention relates to two parallel added floaters ( 2 ) for watercraft, which are fixed to the stern ( 1 a ) on a watercraft hull ( 1 ) or a platform element ( 31 ) whereby the single auxiliary bottom ( 5 ) is positioned higher or for the most part positioned higher than the hull bottom ( 6 ) and forms a step. The added floaters ( 2 ) create on the one hand a static lift (As) and on the other hand a dynamic (Ad) lift. The added floaters ( 2 ) or the auxiliary bottoms ( 5 ) can be adjusted independently from each other in trim angle (N), stroke (H) and deadrise angle (KW) and may have in addition technical mean ( 30 )

1 . Added floaters stretching out at the stern of a watercraft wherein the added floaters form an U and auxiliary bottoms are positioned higher or at least for the most part higher than a hull bottom. 
     
     
         2 . Added floaters in accordance with  claim 1  wherein they have their origin in front or behind or directly at the stern. 
     
     
         3 . Added floaters in accordance with  claim 1  wherein the added floaters are placed in mirror-inverted symmetry and parallel to each other, behind the engine or placed to each side of an outboard engine and fixed to the hull. 
     
     
         4 . Added floaters in accordance with  claim 1  wherein the added floaters or and the auxiliary bottom show a deadrise angle similar to the deadrise angle of the hull. 
     
     
         5 . Added floaters in accordance with  claim 1  wherein the added floaters create a static lift and a dynamic lift. 
     
     
         6 . Added floaters in accordance with  claim 1  wherein the dynamic lift of the added floaters may be different from the dynamic lift of the hull. 
     
     
         7 . Added floaters in accordance with  claim 1  wherein the surface of the dynamic lift of the added floaters is reduced in riding mode, at the latest in the high speed mode by means of steps in form of secondary auxiliary bottoms or and phase out angles. 
     
     
         8 . Added floaters in accordance with  claim 1  wherein the added floaters or the auxiliary bottoms are trimmable lengthwise to the watercraft. 
     
     
         9 . Added floaters in accordance with  claim 1  wherein the added floaters are adjustable in height by a stroke by means of lifting mean and cylinders. 
     
     
         10 . Added floaters in accordance with  claim 1  wherein the deadrise angles on the added floaters or on the auxiliary bottoms are adjustable by means of cylinders. 
     
     
         11 . Added floaters in accordance with  claim 1  wherein the added floaters or the auxiliary bottoms are adjustable beyond the line of the hull bottom in the area of the deadrise angles by means of cylinders and flow means which are fixed to the auxiliary bottoms. 
     
     
         12 . Added floaters in accordance with  claim 1  wherein the added floaters by means of secondary auxiliary bottoms have one or more generic steps and the auxiliary bottoms and or the secondary auxiliary bottoms have a standard angle or a phase out angle. 
     
     
         13 . Added floaters in accordance with  claim 1  wherein the added floaters have integrated link elements on which the co-bottoms are dead level to the hull bottom and may form a connection to the other added floater. 
     
     
         14 . Added floaters in accordance with  claim 1  wherein the added floaters are connected to each other by a plate. 
     
     
         15 . Added floaters in accordance with  claim 1  wherein space is available between the added floaters for the installation of an inner floating device. 
     
     
         16 . Added floaters in accordance with  claim 15  wherein the inner floating device has a propulsion drive. 
     
     
         17 . Added floaters in accordance with  claim 15  wherein the added floaters and or the inner floating device are laminated to the hull or attached to it as modules and can be of other types of material from the hull. 
     
     
         18 . Added floaters in accordance with  claim 1  wherein at the end of the hull rigid deflectors or by means of cylinders variable trailing edges are mounted. 
     
     
         19 . Added floaters in accordance with  claim 1  wherein the left added floater or the left auxiliary bottom compared to the right added floater or the right auxiliary bottom can be activated independently re stroke, trim and deadrise adjustment. 
     
     
         20 . Added floaters in accordance with  claim 1  wherein the outer side means and or the inner side means are parallel to the watercraft axis or tapered at the trailing edge. 
     
     
         21 . Added floaters in accordance with  claim 1  wherein the added floaters have technical mean such as trim tabs or and exhaust gas discharge or and underwater lights or and rudders. 
     
     
         22 . Added floaters in accordance with  claim 1  wherein the added floaters are fixed under a platform element. 
     
     
         23 . Added floaters in accordance with  claim 1  wherein the added floaters are of different material to the watercraft hull.