摘要:
The present invention provides an unconventional and proprietary radio control (RC) or infrared remote control (IR) toy model/airplane which can intentionally shift or change its center of gravity (COG) to different positions along the longitudinal centerline of the aircraft or fuselage. The incremental shifting or moving of the COG from front to rear or vice versa incrementally changes the “angle of attack” of the wing, thereby producing a variable range of viable flight attitudes and resultant terminal velocities (top speeds). Therefore, users can easily select an appropriate speed for the airplane to fly in limited indoor spaces or in larger outdoor areas. Additionally, the COG shifting of the present invention can be applied not only to RC and IR controlled toy models/aircrafts but may also be implemented into real aircrafts including manned and unmanned aircraft for civilian and/or military applications.
摘要:
An empennage assembly for a model aircraft. The empennage assembly includes a fuselage having a bottom portion with an opening and a housing positioned in the opening in the bottom portion of the fuselage. The housing has a first end defining an opening and a second end. A rod extends from an underside of a vertical stabilizer, and a horizontal stabilizer having a hole is aligned with the opening in the bottom portion of the fuselage, the housing and the rod, whereby the rod is positioned within the opening in the first end of the housing to secure the vertical and horizontal stabilizers to the fuselage. A method and device for attaching an empennage assembly to a model aircraft are also disclosed.
摘要:
A novel rotating aerodynamic toy made of a ultra-elastic gel airfoil which is suitable for launch in light or heavy wind conditions and capable of performing various aerodynamic effects including climb, stall, return, straight-line flight and other aerobatics. The ultra-elastic properties of the airfoil allow the airfoil to transform by at least 50% extension of its aerodynamic profile at launch and; while in flight; one or more preselected sized cavities and holes, slots and holes, cavities, slots and holes and cavities, slots, or holes provide handling, elastic control of airfoil profile stretching for flight, and flight stability.
摘要:
A model airplane, airplane kit, method of making a model airplane, a plastic foam cutter useful for making the model airplane and a method for making the plastic foam cutter. The kit of the present invention enables children and adults to easily make a well flying model airplane using recycled plastic foam moldings such as polystyrene food trays well known as 10-S in the food packaging arts.
摘要:
A novel rotating aerodynamic toy in the form of a ultra-elastic gel airfoil which is suitable for launch in light or heavy wind conditions and capable of performing various aerodynamic effects including climb, stall, return, straight-line flight and other aerobatics. The ultra-elastic properties of the airfoil allow the airfoil to transform its aerodynamic profile at launch and while in flight.
摘要:
A novel rotating aerodynamic toy comprising a ultra-elastic gel airfoil which is suitable for launch in light or heavy wind conditions and capable of performing various aerodynamic effects including climb, stall, return, straight-line flight and other aerobatics. The ultra-elastic properties of the airfoil allow the airfoil to transform its aerodynamic profile at launch and while in flight.
摘要:
A toy aircraft capable of circling in changeable radius which includes a fuselage and two rudders disposed on the wings, wherein multiple weight-adjusting recesses are longitudinally arranged on a top portion of the fuselage and arranged on upper rear positions of the wings at predetermined intervals, whereby multiple weight-adjusting ball members can be placed in the recesses and the locations or weight of the ball members can be changed to freely adjust the weight and gravitational center of the toy aircraft, at least one of the rudders being slightly inclined, making the shot aircraft fly in a circling pattern with the circling radius changeable.
摘要:
The invention discloses a fuselage which is subdivided into a fuselage lower part (1) and a shell-shaped upper fuselage portion (3) where the upper fuselage portion (3) is provided with windows arranged in rows (12, 13), the windows being formed by inserted pieces (8) with the fuselage moulded around them, the windows being formed on an integral insert part (7). It is desirable that, on the one hand, the upper fuselage portion including the injection-moulded window pieces be of simpler construction and, on the other hand, should have a continuous external fuselage surface extending continuously without any conspicuous joint line down to the joint with the fuselage lower part. This is accomplished in that the upper fuselage portion (7) is of single-piece construction down to the joint (2) to the fuselage lower part (1) with the windows being surrounded by said upper fuselage portion, and in that the elongated insert part (7) of shell-shaped construction continuously lines the upper fuselage portion piece (3) on the inside. The simplified single piece construction of the upper fuselage portion provided with windows is achieved by the use of the insert part which is conveniently made by injection moulding.
摘要:
In a model airplane having a landing gear 5 provided on a fuselage 1 or wing made as a zinc-alloy die-casting where a bearing member 19 is suspended from a strut 18, it is desirable that the manufacture of an accurately modelled landing gear be simplified. This is achieved in that a landing gear 8 formed with two clasp member arms 10 made of elastically bendable plastic forms the bearing member 19 and at least partially the strut 18 with a tenon 11 being inserted and glued into a cast cavity 12 in the fuselage 1/wing wherein the clasp member 8 bears against the zinc-alloy die-casting with a thickening shoulder 17. The clasp member being a plastic moulding permits a finely engraved realistic appearance of the strut and bearing member while simplifying assembly of the wheel pair and reducing the scrapping rate.