Monday, July 7, 2014

Thr flying methods and precautions of Model aircraft


The self-important model aircraft fixed wing play to remember is that; The wind, the wind down. Take-off and landing are the two important links of each flight. So, we first need to grasp the principles and skills of takeoff and landing ship model glider before take-off should first observe the surrounding environment, affect the first condition of taking off is the wind direction, wind speed, the main thing is the wind to take off. Ship model glider can be cast off hand. Method is to push the throttle to the largest, with the aircraft level thrown forward. Can also be runway to take off. In general hand cast off the runway to take off more and faster to save power.
Matters needing attention
Throttle position: the greater the throttle, pull or push, the greater the propeller aircraft, faster running take-off distance is short. So, generally used maximum power take-off or maximum throttle state.
From the Angle of attack, Angle of attack is determined by the size of the lift from the ground the height of the front wheel or lift the tail. Large Angle of attack from the ground, the ground speed is small, smooth take-off run a short distance. But from the Angle of attack and not too much, from the Angle of attack is too large, will not only large in the resistance in a plane and make the aircraft growth is slow and prolong running distance, and will directly endanger the flight safety.
Flap location: let go of the flaps, can increase the lift coefficient, reduce the ground speed, thus can shorten the distance takeoff runway.
Take-off weight: take-off weight increase, not only make the aircraft off the ground speed increase, and will cause tire friction increases, the aircraft is not easy to accelerate. Therefore, take-off weight increases, take-off taxiing distance increase.
Airport elevation and temperature: airport elevation or temperatures can cause air density decreases, and put a face to pull or push decreases, and the plane speed slow; From the ground, on the other hand, speed increase, so take off running distance is growth.
Runway surface quality: the quality of different runway surface friction coefficient, sliding distance is different also. If the runway surface smooth and flat and solid, small friction coefficient, low friction, the plane faster, run take-off distance is short. Whereas the runway surface rough or soft, smooth take-off distance is long.
Wind speed: takeoff runway, in order to produce enough lift from the ground plane, regardless of wind or no wind, ground airspeed is certain. But running distance is only related with the ground speed, the wind run, small ground speed from the ground, so take off running distance is shorter than when there is no wind. The opposite is long.
Run slope: runway slope, can make the plane increase/decrease the acceleration forces.
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