EVOLUTION OF HELICOPTER -PART 1
In 1907, only a few years had passed since the Wright brothers had discovered the first flight, and automobiles had yet to make much head way against horse-drawn carriages. In France, a number of people were trying out another novel mode of mechanical locomotion called the helicopter. Well, something vaguely resembling the modern helicopters, anyway. But the contraptions did count as the first successful steps, however brief, along the way to manned flight powered by some rotary wings. And that makes 2007 the centennial of the flying vehicle, the helicopter.
Designs by Mr. Maurice Leger, Jacques and Louis Breguet, and Paul Cornu all got off the ground in 1907-just barely, and for just a very few seconds into the air. These earliest machines also tended to require steadying from people on the ground. Cornu's craft, shown here, got air-borne in November of that year for as long as 20 seconds at an altitude, if you can call it that, of somewhere between knee high and eye level. It featured two rotors at opposite ends of the air frame that turned in opposite directions to balance out the torque. Will catch you soon with the next part of the helicopter's evolution
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The first weekend in April brought the 54th annual Toled lighto Weak Signals RC Expo, where the new Thunder Power RC 325mm carbon fiber main rotor blades for 400-450 class helicopters were released. These ‘true’ 325mm long (measured from center of mounting hole to tip) rotor blades offer increased disk area for reduced disk loading, while offering extra power and ‘pop’ for aggressive 3D maneuvers when compared to other similar class blades. Their unique carbon fiber and foam core construction results in incredible stiffness for unbelievable stopping power and response, while the high-quality resin and ‘painted in the mold’ finish offers great looks on the ground and in the air. rc helicopter
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