The helicopter's structure and principle

The helicopter's rotor

The helicopter's rotor primarily symmetric rotor and asymmetric rotor, symmetric rotor refers for the use of symmetric airfoil rotor, primarily for 3D flight, the typical equidistant rotor multi-symmetric rotor. Contain all offset rotor and asymmetric rotor for F3C flying equidistant rotor, there are lots of asymmetric rotor.

Why prior to the rotor employing the dynamic / static balance?
A: static balance refers for the weight of two, balancing refers for the center of gravity of two! For instance, we all know the power of bullets, in truth, the weight from the bullet is only about 20g, its power comes from much more than 700m / s speed, high-speed offers him an excellent deal of kinetic power! The outermost line in the high-speed rotation from the propeller speed can reach 60m / s (200km / h) or a great deal more! Have high kinetic energy can not be ignored. Such speeds, the kinetic energy generated by the various weight distinction can also be terrific, causing an enormous shock! If the identical weight, while the center of gravity will also seem in the similar radius (concentric circles), the kinetic energy will probably be unique. It can be essential to ensure that the static and dynamic balance of the propeller!

What is the oars?
A: sculls refers to two or extra only blade rotation, a high and a low isn't the identical plane of rotation. The mouth in the blade tip is like open scissors. The sculls distinctive two or much more only paddle pitch (lift completion of two oars, dynamic / static balancing perform). Provided that the mark in all of the blade tip to cook and as a benchmark to among the list of other paddle, and after that observe the rotation in the upper or the lower part with the benchmark propeller might be on the other propeller blade angle, generating minor adjustments to as soon as once more observe, which include observed much less than a high one low two rotating plane currently eliminate sculls. The oars trigger powerful vibration, and need to be eliminated!

Paddle the initial manage group:
Paddle control group, also called the rotating head.For the total cycle in the model helicopter primary rotor pitch, adjust the rotor lift distribution, alter of flight attitude.The device crucial components in the tilt plate (also called the swashplate), as well as many different rod and seesaw structure. A small quantity of model aircraft using a straight pull structure and aileron structure.

The tilt control from the disk:
What's the common swashplate control mode? What is CCPM swashplate control mode?
They What exactly is the difference?
A: within the standard mode swashplate control refers towards the mechanical mixing, and is now really rare, aileron action only by the aileron servo, lifting the action only by the elevator machine pitch change only by paddle carried out away from the steering gear, 3 Servo carry out their duties. CCPM mode swashplate control mode, the swash plate to an action by the three servos at the same time the action is completed. Such as changes in pitch 3 servos simultaneously sliding the puck up and down movement with the aileron action by the aileron and pitch servos at the same time a push to a pull to full the action of lifting the elevator machine as well as the ailerons and paddle away from the steering gear completion of a push a pull-up completed.
View from above the distinction, compare the difference among the standard mode on a single steering gear torque specifications are relatively high, for the reason that a single action only 1 steering gear output, although the CCPM any single action of at the very least two steering gear output, so the rudder machine's torque requirements are lower. But, the higher of CCPM Servo consistency of overall performance needs, stroke and speed with the steering gear must be as substantially as you possibly can, otherwise it is going to build action deformation, including pitch change 3 Servo Ibid identical, if the trip is not the same. will outcome in injustice, from the distinctive pitch swashplate tilt. If the speed is just not exactly the same, exactly the same will outcome within the injustice of the puck inside the pitch transform!
Not feel any difference in between flight overall performance for newbies device lightweight electric helicopter, CCPM has the benefit on the weight and movement of forces, so if 3D flight CCPM will reflect a distinct advantage ! F3C flight CCPM also additional stable overall performance.

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