| 摘要 |
The disclosed hoverplane toy Fig 4 is a lightweight surface skimming vehicle. It can have any propulsion system that provides forward movement, which includes hand launching. While moving forward at pace, the hoverplane toy Fig 4 processes incoming air at front opening under main wing 6. The said incoming air is compressed to a higher pressure under main wing 6 until the said incoming air is forced through the escape area between the floor flying surface Fig 5 and the underside of reflexed trailing edges 7. The said escape area is in the shape of a venturi Fig 5 which further increases air pressure under the very outer edge of the reflexed trailing edges 7. The now further increased pressurized air is forced out rearward at speed to provide lift and ease of forward movement to the hoverplane toy Fig 4. It is important to note that the reflexed trailing edges 7 meet the floor at a continuing acute angle finishing level to floor flying surface Fig 5. Without the reflexed trailing edges 7 on the main wing 6, the invention, hoverplane toy Fig 4 would severely under perform in lift and thrust performance. The fuselage 8 holds main wing 6 at eight degrees angle of attack upward from floor flying surface. The horizontal stabilizer 10 is a cambered lifting tail and is set at eight degrees angle of attack upward from floor flying surface Fig 5. It is important to note that both main wing 6 and horizontal stabilizer 10 are both set at eight degrees angle of attack upward from floor flying surface Fig 5 and are not adjustable. The vertical stabilizers 9 provide level flying stability to hoverplane toy Fig 4 and hold horizontal stabilizer 10 up away from disturbed air near main wing 6. The horizontal stabilizer 10 and both vertical stabilizers 9 may have small movable surfaces hinged at rear for extra control if a radio control motorized version is required. FIa 14-comng ai |
