Short Description
At the end of WWII it was one of the main ambitions of wealthy italian, Ferruccio Lamborghini, to own an exotic high-performance sports car. Unable to buy a satisfactory vehicle, Lamborghini commenced manufacturing his own cars. The Miura, released at the 1966 Geneva Show, made people recognize Lamborghini as Ferrari’s rival. The Miura with an attractive body made by Bertone, had a 4-litre V 12 cylinder engine a midships and had a maximum speed of 290 km/h. Five years later at the 1971 Torino show the first production Ferrari with a midship engine appeared. About 900 Miuras were manufactured. Lamborghini had a more exciting model to take the place of the Miura. This was the Countach. the prototype appeared in 1971, and a production model at the 1973 Geneva Show. The wedge-shaped body was designed by Bertone. A V 12-cylinder engine is mounted amidships with its back towards the front, the displacement being 5 litres for the prototype and 4 litres for the production model. The engine power is transmitted forward to the clutch and gearbox wherefrom it is trasmitted backward through the engine bottom to the differential gear behind the engine. The production modle is called LP 400 and has a maximum speed of 300 km/h. A special order machine, the LP 500S is a further upgraded version. In this car, modifications such as the improvement compression ratio, the engine, with the same displacement of 4 litres, develops no less than 447hp. The LP 500S is said to have a maximum speed of 315 km/h. The addition of the front and rear overfenders, rear wing, etc, and the use of very wide Pirelli P7 tyres combine to make the car’s appearance really dynamic. some details remain unknown as the Countach LP 500S is not a production model.
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Content
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1. Radio Control Units
Radio Control is a means of operating a mechanism remotely without wires. The transmitter sends signals which are decoded by the receiver, which then conveys the output to servos. The servos then translate the signals into machanical movement to control the car either by switching on an electrical circuit or by direct action. Various radio control systems have been in use. But the Digital Proportional Type Radio Control System is most popular in this field because it allows gradual control.
(1) Operation of the Digital Proportional type
It is a characteristic feature of the Digital Proportional type that the control function is in direct proportion to the movement of a transmitter stick. when a stick is moved quickly, a servo will quickly move also. When the movement of the stick is stopped halfway, the movement of the servo will also stop halfway. when the stick is moved to full range of throw, the servo will also move to the end of its travel. Since the movements of servos are transmitted to the model units such as a rudder, it is possible to obtain the control effects quickly, slowly, halfway or to the full as one wishes by means of the transmitter stick. this is the reason why the Digital Proportional type is the most advanced radio control system of the model operation.
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