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RADIO CONTROLLED VEHICLES BY: STEPHEN POLIDORO

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HISTORY OF THE REMOTE CONTROL CAR -FIRST REMOTE CONTROL CAR WAS MADE IN THE 1940S -THEY WERE SMALL NITROMETHANE-POWERED ENGINES -THE CONTROLER WAS ATTACHED TO THE CAR BY A TETHER -THE CAR WAS FAST BUT ONLY WENT IN CIRCLES BECAUSE OF THE TETHER

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FIRST COMMERICALLY AVAILABlE MODEL WAS THE FERRARI 250LM in 1966

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1970S EARLY 1970S - NITRO OR GAS-POWERED CARS WERE INTRODUCED LATE 1970S - MECHANICALLY SIMPLE ELETRIC CAR MODELS WERE CREATED -ADDING SUSPENSION CREATED FIRST OFF ROAD REMOTE CONTROLLED CARS

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TODAYS REMOTE CONTROLED CARS -FASTER -MORE DURABLE -IMPROVED TECHNOLOGY -BRUSHLESS MOTORS -STRONGER BATTERIES -QUIETER MOTORS

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HOW DO REMOTE CONTROLLED CARS WORK? -THE TRIGGER IS THE MAIN CONTROL UNIT. PUSHING OR PULLING TRIGGER OPERATES THE CAR. -WHEN THE TRIGGER IS PULLED A CIRCUIT IS CLOSED. THE RADIO SIGNAL IS TRANSMITTED TO THE CAR AND IT MOVES DEPENDING ON TRIGGER MOVEMENT. -THE REMOTE ACTIVATES THE CARS MOTOR WITH ELECTRIC PULSES WHICH MAKES THE CAR MOVE IN ANY DIRECTION THAT THE OPERATOR CHOOSES. -THE ANTENNA IMPROVES THE WORKING RADIUS OF THE CAR -THE FIRST MOTOR TURNS THE FRONT WHEELS -THE SECOND MOTOR IS FOR: DRIVE, FORWARD & REVERSE -THE LOWER CHASSIS AND SHELL TOP ARE THE SKELETON OF THE RC CAR. -ALL ELECTRIC AND MECHANICAL COMPONENTS ARE HELD IN THE LOWER CHASSIS. THE BATTERY SLOT CARRIES THE BATTERY WHICH IS THE POWER SOURCE

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YOU TUBE DEMONSTRATION

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THE RC CAR HAS FOUR MAJOR COMPONENTS ANTENNA CIRCUIT BOARD 2 MOTORS BATTERY SLOT

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DO DIFFERENT ITEMS BLOCK RADIO FREQUENCY? I WILL WRAP MY REMOTE CONTROLLER WITH SEVERAL ITEMS TO SEE IF IT EFFECTS ITS FREQUENCY. MATERIALS NEEDED TO TEST HYPOTHESIS : -REMOTE CONTROL CAR -REMOTE CONTROLLER -NEWSPAPER -ALUMINUM FOIL -RUBBER GLOVE

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PERFORM EXPERIMENT NOW!!!!!

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TEST RESULTS/ CONCLUSION DID ANY OF THE MATERIAL INTEFERE WITH THE REMOTE FREQUENCY?

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SOURCES http://www.ehow.com/about_6455872_history-remote-control-car.html WWW.TRAXXAS.COM WWW.EHOW.COM/ABOUT.RC WWW.STREETDIRECTORY.COM WWW.R/CSPARLES.COM WWW.youtube.com/watch?v=UaheQsvZK8g