Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
  • A63H27/00—Toy aircraft; Other flying toys
  • A63H27/04—Captive toy aircraft
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
  • A63H27/00—Toy aircraft; Other flying toys
  • A63H27/02—Model aircraft
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63J—DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE; CONJURING APPLIANCES OR THE LIKE
  • A63J13/00—Panoramas, dioramas, stereoramas, or the like

Definitions

• the present invention relates to a method of presenting models of planes taking off from a runway, flying over the runway or landing thereon, said runway having a reduced scale proportional to the reduction scale of the model reduced in relation to the actual size of the aircraft.
• the invention will notably find its application in the aeronautical field such as aeronautical museums and aeronautical exhibitions, or to perform simulations of small scale flight. For example, it will be implemented by designers, aeronauts and architects of the building.
• Aeronautical Museums or Permanent Aeronautical Exhibitions feature full-size or model aircraft. For reasons of cost, these models are exposed and remain static almost permanently, the flying demonstrations being reserved for occasional events, such as air meetings, fairs or air shows, or various public events of which they often constitute a highlight .
• model aircraft fighters have sought to make their model aircraft fly at reduced speeds, sometimes taking into account the additional constraint of cornering compliance and acceleration printing.
• the problems of lift and instability become even more insurmountable that the scale of reduction is small. In any case, no one has ever made these models of planes fly at the ideal speed, that which makes it possible to give to model flights the appearance of a real plane flight seen from a distance, it is to say at a speed reduced linearly to the reduction scale.
• the model aircraft fly in ranges of speeds compatible with those of the usual outside winds, being of the order of 30 km / h, in a phase of approach or take-off, at 200 km / h, in progress. flight and for the fastest models. These ranges of speed remain true during flights practiced in enclosures protecting external winds. Although the average speeds are rather close to 30 km / h, it follows that the models designed must withstand significant aerodynamic and mechanical constraints and they must have a consequent motorization. These models are relatively heavy, and in the case of airliners already demonstrated in flight, the models weigh about 30 kg and fly at least 80 km / h.
• Patent FR 2,850,586 discloses a device improving the lift problems of aircraft for flying said aircraft in an external environment.
• the device comprises a set of wings of particular shape ensuring the lift and one or more gas tanks lighter than air, fixed on or in the aircraft, each wingtip being provided with a vertical structure intended for avoid a loss of lift, said vertical structure may itself be a gas tank lighter than air.
• the design of the aircraft as described in this document has the disadvantage of adding apparent complementary means which considerably modify the appearance of the aircraft. the aircraft in relation to the aircraft actually flying in order to reduce the flight speed of the aircraft. Consequently, it is difficult to reproduce a model airplane actually flying from the device described in patent FR 2,850,586.
• the object of the invention is to overcome the drawbacks of the prior art by proposing a method of presenting a model airplane at take-off, during flight and at landing, said reduced model of airplane flying at a reduced speed, while retaining the appearance of a real airplane so as to reproduce a vision of a real airplane flying over a runway, or approaching or taking off from it.
• the invention relates to a method for presenting a model of airplane at take-off, during flight and at landing, above a reduced track proportional to the reduction scale of said reduced model.
• the model airplane is flown at a homothetic slow speed relative to the actual speed of the aircraft, proportional to said reduction scale, by implementing a combination of means of increase of the lift / weight ratio, means of protection against external disturbances and means of displacement according to a desired trajectory.
• the invention also relates to an installation for carrying out the method according to any one of the preceding claims, characterized in that it comprises: at least one model airplane equipped with means for increasing the ratio of the weight / weight ratio an enclosure provided with means of protection against external disturbances, said enclosure comprising at least one track for the take-off and landing of the reduced model, and over which flies said reduced model, means for moving the reduced model in the pregnant, fans or control gates to create a flow of air in the opposite direction from the flight of masking means of the displacement of the reduced model upstream of the runway before its takeoff or downstream of the runway after landing.
• FIG. 1 schematizing a model airplane flying in an enclosure according to the method of the invention.
• the method according to the invention consists in flying, over a reduced runway 1, a reduced airplane model 2 at a homothetic speed at the speed of the actual airplane, said homothety respecting the reduction scale of the aircraft. model compared to the actual plane.
• This homothetic speed is respected both during take-off and overflight of runway 1, as well as during landing.
• This homothetic speed flight of the reduced model 2 is obtained by implementing a combination of means for increasing the weight / lift ratio, means of protection against the wind or external weather, and displacement means of the reduced model 2 according to the desired trajectory.
• the present invention has the advantage of taking advantage of what is called “the phenomenon of scale”, related to the radical change in the flight speed range of the reduced models. Indeed, the reduced models, of the order of 1/20 th to 1/40 th , fly according to the method of the invention at speeds of the order of 5 km / h to 20 km / h maximum, c ie speeds five times lower than the prior art models.
• the installation for carrying out the method according to the invention comprises a model airplane 2 equipped with means for increasing the weight bearing ratio, an enclosure 3 provided with means of protection against disturbances. external, said enclosure comprising at least one track 1 for the flight and landing of the reduced model 2, and above which flies said reduced model 2, displacement means of the reduced model 2 in the chamber 3, fans and control sluices to create an air flow in the opposite direction of flight, and masking means the movement of the scale model 2 upstream of the track 1, before taking off, or downstream of the track 1, after his landing.
• the means of increasing the weight / lift ratio are, in part, in the maximum relief of the structure of the aircraft model 2, to a level made possible by the strong attenuation of aerodynamic stresses in very slow flight.
• This attenuation of the constraints advantageously allows the use of a structure much more fragile and light than in conventional flight of the reduced models.
• the means of protection reside in an enclosure 3 insulating winds and rain track 1 and its adjacent volume.
• This enclosure 3 may be made of glass / metal structure, in whole or in part. It may possibly be partial and include removable or permanent openings.
• the enclosure 3 advantageously incorporates a partial or total reconfiguration mechanism, to leave the track 1 outside when the weather conditions allow it.
• the displacement means of the reduced model 2 according to the desired trajectory consist, according to a preferential mode, of on-board driving equipment, such as motorization, and of trajectory control, such as a device for controlling This equipment is preferably controlled by manual or automated radio control from the ground, and make the best use of the current level of miniaturization in model aircraft.
• these means advantageously consist of a control device. winching 5, the pulling son being sufficiently thin to be virtually invisible, and the winches 5 being hidden in view of the spectators.
• This design also has the advantage of securing the trajectories vis-à-vis the people present around the track, and the devices themselves.
• the 1 / 20th scale reduction makes it possible to benefit from a landing or take-off runway 1, preferably having a length of approximately 100 meters.
• a landing or take-off runway 1 on which take off or pose actually flying in the air models 2 of a size of the order of 4 meters long and 4 meters wide, flying a real speed between 8 and 13 km / h , this speed of the reduced model is similar to a real speed of the real plane between 160 and 260 Km / h.
• the reduced track 1 is placed inside, in a chamber 3, to overcome the weather and climatic hazards .
• the interior space surrounding the track 1 which is for example glazed, has dimensions about 400 meters long by 50 meters wide, and 35 meters high at the highest points upstream and downstream of track 1.
• the structure of the enclosure 3 to be designed is, for example, the same type as a shopping center.
• Models 2 are ultra light and weigh in the range of 300 to 800 grams. It is preferable to use a structure made of thin sheets of thermo-molded polymers for their design, to which are added additional parts and decorations such as, for example, a landing gear with operational wheels, flaps, fires, signaling, micro-servomotors, micro-batteries, portholes and doors ... Downstream air circulation upstream, and along track 1, is obtained by ventilation 7 regulated downstream and upstream of runway 1.
• the training of the reduced models 2 is obtained by a winching device 5, such as, for example, silent electric motors concealed at the end of the runway for landings, and downstream and at runway height. 1 for takeoffs.
• winches 5 are preferably provided with a nylon thread of very small section so as to make it almost invisible, said nylon thread being mounted in a closed loop 9 so as to define the entire flight path of the model Reduced 2.
• the wire arranged in a closed loop 9 has the function of towing and guiding the reduced model 2 by providing its flight homothetic speed, said homothetic speed being one of the factors to create the lift of said model and to reproduce a real flight in the air.
• an additional wire 11 is provided for connection to the closed loop 9, which allows the model to leave its necessary margin of vertical autonomy with respect to the winching device 5.
• an interlocking automaton 13 modeled in FIG. 1, making it possible to fix the apparatus to the nylon wire of the winching device, at the beginning of the runway, for take-off.
• a disengagement automation 15 modeled in Figure 1, to release the reduced model 1 of the end of the runway wire and the end of landing.
• the enclosure 3 is equipped with means for displaying the reduced model 2, upstream 17 of track 1, when the apparatus is in the approach phase, and to make disappear the reduced model 2, in downstream 19 of runway 1, when the aircraft is in the take-off phase.
• These means are implemented thanks to a placement equipment 21 in the approach phase, arranged in height, and recovery equipment 23 at takeoff.
• These equipment 21, 23 are preferably masked to the public, for example by means of a set of mirrors 25, 27 reflecting the exterior glazing or by means of an imaging system, such as screens on which images are projected, virtually extending the flight path.
• end-of-run support after landing, and positioning at the start of the runway for take-off are automatically managed by an automated ground-pull system.
• This automated traction system makes it possible to move the aircraft that landed by rolling them one after the other, from the end of the runway 1 to the beginning of said runway 1.
• This automated traction system is preferably performed by means of a conveyor belt 29 which is also masked from the public view, for example by concealing it below the ground.
• This treadmill 29 allows repatriate models 1 of aircraft after takeoff and recovery downstream of track 1, to the upstream placement system 17 of track 1, to prepare said reduced models 2 to a new approach.
• the method can advantageously be completed by sound equipment embedded on the reduced model or placed on the ground in the enclosure, these equipment simulating, for example, noise real aircraft engines.
• sound equipment embedded on the reduced model or placed on the ground in the enclosure, these equipment simulating, for example, noise real aircraft engines.
• This method and this installation according to the invention may for example be used as a basis for the implementation of an amusement park open to the public with a high level of safety due to the reduced speeds of the model 2 in progress flight in a closed enclosure.

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• Toys (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=36347592

Family Applications (1)

Country Status (3)

Family Cites Families (5)

• 2005
  • 2005-09-29 FR FR0509977A patent/FR2891157B1/fr not_active Expired - Fee Related
• 2006
  • 2006-09-29 EP EP06808222A patent/EP1960073A1/de not_active Withdrawn
  • 2006-09-29 WO PCT/FR2006/002212 patent/WO2007036645A1/fr not_active Ceased

Non-Patent Citations (1)

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