Novel wing arrangement

Abstract

A water sports device for supporting a seated human rider while the rider and the device are towed behind a powered water craft, the device including an elongated board having a front end and a back end to which is secured a seat for supporting the buttocks of the rider in a position spaced from and roughly centered above the back one-third of the board, a holder for securing the feet of the rider over the top of the board secured to the board spaced at least about two feet toward the front end of the board from the seat. An elongated hydrofoil extends downward from the board and front and rear wings carried by an arm which is generally parallel to the board. The arm is secured to the hydrofoil and spaced from the board, so that the wings are generally parallel to the board. The wings provide essentially no lift when the board is horizontal, the improvement wherein the front wing is a monowing carried on the lower surface of said arm and the rear wing is carried on the upper surface of said arm such that the flow of water over the front wing in unobstructed by said arm when underway and produces less turbulence over the rear wing. In a water sports device for supporting a standing human rider while the rider and the device are towed behind a powered water craft, the device including an elongated board having a front end and a back end, an elongated hydrofoil extends downward from the board, front and rear wings carried by an arm which is generally parallel to the board, said arm being secured to the hydrofoil and spaced from the board, so that the wings are generally parallel to the board, the wings provide essentially no lift when the board is horizontal, the improvement wherein the front wing is a monowing carried on the lower surface of said arm and the rear wing is carried on the upper surface of said arm such that the flow of water over the front wing in unobstructed by said arm when underway and produces less turbulence over the rear wing.

1 . In a water sports device for supporting a seated human rider while the rider and the device are towed behind a powered water craft, the device including an elongated board having a front end and a back end to which is secured a seat for supporting the buttocks of the rider in a position spaced from and roughly centered above the back one-third of the board, a holder for securing the feet of the rider over the top of the board secured to the board spaced at least about two feet toward the front end of the board from the seat, an elongated hydrofoil extends downward from the board, front and rear wings carried by an arm which is generally parallel to the board, said arm being secured to the hydrofoil and spaced from the board, so that the wings are generally parallel to the board, the wings provide essentially no lift when the board is horizontal, 
 the improvement wherein the front wing is a monowing carried on the lower surface of said arm and the rear wing is carried on the upper surface of said arm such that the flow of water over the front wing in unobstructed by said arm when underway and produces less turbulence over the rear wing.    
   
   
       2 . The improvement of  claim 1  wherein gussets are provided between the hydrofoil and arm at the front and rear of the arm.  
   
   
       3 . The water sports device of  claim 1  wherein the front monowing is larger in area than the rear wing.  
   
   
       4 . In a water sports device for supporting a standing human rider while the rider and the device are towed behind a powered water craft, the device including an elongated board having a front end and a back end, board from the seat, an elongated hydrofoil extends downward from the board, front and rear wings carried by an arm which is generally parallel to the board, said arm being secured to the hydrofoil and spaced from the board, so that the wings are generally parallel to the board, the wings provide essentially no lift when the board is horizontal, 
 the improvement wherein the front wing is a monowing carried on the lower surface of said arm and the rear wing is carried on the upper surface of said arm such that the flow of water over the front wing in unobstructed by said arm when underway and produces less turbulence over the rear wing.    
   
   
       5 . The improvement of  claim 4  wherein gussets are provided between the hydrofoil and arm at the front and rear of the arm.