Movable horizontal tail for catapult toy glider

Abstract

The invention relates to a horizontal tail of a catapult launched glider which can change angles during flight. An horizontal tail which can change angles means that the horizontal tail is movable, a movable horizontal tail is achieved by sandwich a slow rebound means between the horizontal tail and the fuselage, the slow rebound means could be a memory foam or a compressible plastic telescopic tube, their properties is delayed restitution when the pressure acting thereon disappears, so the horizontal tail on top of the slow rebound foam is boosted and maintained at a negative angle with the longitudinal axis of the fuselage when there is no pressure acting on it, the compressible slow rebound means allows the horizontal tail be pressed downward from negative angle to zero angle or even to positive angle when squeeze the tail portion of the glider by fingers before launch, the horizontal tail is maintained at zero angle or positive angle at that time, after launch, the horizontal tail moves towards negative angle with a slow speed which is controlled by the expansion rate of the slow rebound means, the glider travels in the sky with a nearly straight upward climb first, then go down with a smooth gliding and landing as the horizontal tail has been propped up by the slow rebound means. Another play mode is by griping the sides of the fuselage without touching the horizontal tail, the glider will fly in circles.

What is claimed is: 
     
         1 . A catapult launched toy glider with a movable horizontal tail is characterized by a slow rebound means which is sandwiched between a horizontal tail and back-end of a fuselage. 
     
     
         2 . A catapult launched toy glider with a movable horizontal tail as described in  claim 1  wherein said horizontal tail is defined as rear portion of a horizontal control surfaces, said horizontal control surfaces is the integration of the wings and horizontal tail or front elevator, the order is not limited to its front and rear, that is, said main wing could arranged in the last, said main wing and said horizontal tail can also be integrated become one, such as a delta wing, that's why I call it as a horizontal control surfaces. 
     
     
         3 . A catapult launched toy glider with a movable horizontal tail as described in  claim 1  wherein said slow rebound means is a slow rebound foam or a compressible plastic telescopic tube or the like, their commonness is that when under pressure is compressed and when pressure is released will slowly regain their original shapes. 
     
     
         4 . A catapult launched toy glider with a movable horizontal tail as described in  claim 1  wherein said slow rebound means is to elevate the back-end of said horizontal control surfaces, more specific, to elevate said movable horizontal tail maintain at negative angle position relative to said fuselage's longitudinal axis, its compressible properties makes said movable horizontal tail thereon be able to be squeezed downwards from negative angle; its slow rebound properties makes said movable horizontal tail thereon be able to restore to its original negative angle position slowly after pressure is released. 
     
     
         5 . A catapult launched toy glider with a movable horizontal tail as described in  claim 1  wherein the angle range of said movable horizontal, tail is set between negative angle and horizontal angle relative to the fuselage axis for simple vertical flight or set between negative angle and positive angle relative to the fuselage axis for S-shaped meandering climb to a higher altitudes, the angle change between positive angle and negative angle setting makes said slow rebound means take a longer time to regain its original shape than the angle change between horizontal angle and negative angle setting does, so it can get more time for upward climb to a higher position. 
     
     
         6 . A catapult launched toy glider with a movable horizontal tail as described in  claim 5  wherein a straight fuselage with flat upper surface together with slow rebound foam mounted on its back-end will be able to make a movable horizontal tail thereon with angle range move between negative angle and horizontal angle through your fingers to press it and release it. 
     
     
         7 . A catapult launched toy glider with a movable horizontal tail as described in  claim 5  wherein a wedge-shaped block be cut away from the back-end upper surface of said straight fuselage and form a inclined plane, bonding said slow rebound foam on said inclined plane, with dimensions big enough to elevate said horizontal tail thereon to reach negative angle to said fuselage axis, this approach will make said movable horizontal tail thereon move from negative angle to positive angle when be squeezed with fingers, an when pressure is released, said movable horizontal tail will move from positive angle to negative angle again. 
     
     
         8 . A T-tail catapult launched toy glider with a movable horizontal tail is characterized by sandwich slow rebound foam between back-end of a horizontal control surfaces and back-end of a fuselage to make the back-end of said horizontal control surfaces be elevated with a negative angle relative to the longitudinal axis of said fuselage. 
     
     
         9 . A T-tail catapult launched toy glider with a movable horizontal tail as described in  claim 8 , comprising:
 A fuselage with a launch hook at the front bottom,   a slow rebound foam which is fixed on the back-end of the upper surface of said fuselage,   a horizontal control surfaces sticking to the upper surface of said fuselage and said slow rebound foam, all of said three aligned at the back-end of said toy glider,   a vertical tail is fixed on the rear portion of said horizontal control surfaces,   a horizontal tail is mounted on said vertical tail.   
     
     
         10 . A T-tail catapult launched toy glider with a movable horizontal tail as described in  claim 9  wherein said horizontal control surfaces is long and narrow in shape and is close to but shorter than the length of said fuselage, a pair of wings extends laterally and outwardly from the middle portion which is firmly fixed on said fuselage. 
     
     
         11 . A T-tail catapult launched toy glider with a movable horizontal tail as described in  claim 9  wherein said slow rebound foam when flattened, said horizontal control surfaces will drive down said vertical tail in the same time so to link said horizontal tail moves from negative angle towards horizontal angle or even more down to positive angle. 
     
     
         12 . A T-tail catapult launched toy glider with a movable horizontal tail as described in  claim 11  wherein the angle range changes from negative angle to horizontal angle is achieved by putting a slow rebound foam on the upper surface of the back-end of a straight fuselage, in which the upper surface of said straight fuselage is complete flat from head to end, so can make said movable horizontal tail move from negative angle to horizontal angle when squeezed with fingers, when pressure is released after launch, said movable horizontal tail will move from horizontal angle back to negative angle automatically and allow said glider fly to a high position then follows a gentle gliding. 
     
     
         13 . A T-tail catapult launched toy glider with a movable horizontal tail as described in  claim 11  wherein the angle range changes from negative angle to positive angle is achieved by: first, cut a wedge shaped block at the back-end top corner of a straight fuselage to make an inclined upper surface at the back-end of said straight fuselage, then bonding a slow rebound foam on the inclined upper surface, the dimensions of said slow rebound foam must be bigger and higher than said wedge shaped block which is cut from said straight fuselage, so it is high enough to elevate said movable horizontal tail thereon to reach a negative angle with said fuselage axis, so to be able to make said movable horizontal tail thereon move from negative angle to positive angle when squeezed with fingers, and when the pressure is released, said movable horizontal tail thereon will move from positive angle to negative angle automatically so that increase the upward flying time for a higher fly.