Safe problem

Remember that safety isnt just about you; its also about all of the fellow pilots and the spectators that expect their experience to be safe and enjoyable as well. The following is a brief list of some of the general safety issues each pilot needs to address for the safe and enjoyable participation in this hobby.

Your responsibility to safety begins with a preflight check of your radio control plane. The things to check for are: Cracks in the plane components Repairs that appear to be worn out or in need of more attention The propellers. If you remove the propellers for transport, it is very important to remount it in the correct orientation. Also, any deformation or gouges in the propeller can affect how the plane responds to its controls. A bad prop is a bad plane. Also, propellers are difficult to fix back to new, so your best bet is to get a brand new one and enjoy the precision control you are looking for. The engine, battery, servos, and other components. Check to see that these are securely fastened to the plane. Check the tightness of screws and bolts.

In general, make sure everything that is not supposed to move doesnt, and everything that is supposed to move does so in a controlled fashion. For example, make sure propellers spin but that they dont wobble. Also make sure the battery is charged and the connectors are all connected properly.

Build a remote control helicopter

1.First, you need to decide on which model helicopter you are interested in. Once you have it built youll be ready to start flying no matter which one you decide to build, and for the most part the skill level is the same, so why not pick a chopper that appeals to you?

2.The best way to decide which RC helicopter to buy is to have a look at the different choppers that are available. Read reviews on the different models and types to discover which fly the best and which fly the worst, find out what others like or dislike about certain models. After that, youll be able to make an informed decision and you wont be wondering if you made the right choice.

3.Purchasing your remote control helicopter is just the beginning. Then you will also need to purchase the various parts that you will need like an engine to make it run, the gyro that will control the rotor, the servos and radio controls which is how you will talk to your RC helicopter. The servo is installed in the helicopter and it is where the signals from the remotes are transmitted to.

4.Next, you need to be sure that you have all the tools that you will need to build your helicopter. Nut drivers, ball drivers, screw drivers, pliers, wrenches, fuel filters, glow plugs, pitch gauge, all kinds of nuts and bolts. No matter which kit you buy there always seems to be a screw or two missing, or you loose one while doing the assembly, oh yes, and dont forget those repairs youll have to make after a crash. And you will crash everybody does at first. In fact, its half the fun of learning to fly.

After youve built your remotecontrol helicopter, its almost time to take it for a test flight. Remember, anything that turns must be balanced, your end points need to be equal, and all the bolts need to be tight. If you have a friend thats an experienced RC helicopter pilot, ask them to look over your project to make sure youve got it all right.

Fantastic New Remote Controlled Helicopter Models

Remote controlled helicopters are sure to push your coordination, imagination and mechanical skills to the limit. And it's


absolutely exhilarating to fly a complex miniature electric machine in your living room, backyard, or local field without having to


worry about the noise and messy oils and gasses involved with the larger type gas remote control helicopter.

When you land the electric remote controlled helicopter it will be just as clean as when you took


off (sometimes even cleaner!) and you won't even disturb your family. This field of micro helicopters is fairly new, having been


around for only a few short years. We can only imagine what the future will bring. We are already seeing new developments in lithium


batteries and brushless motors which can now be used to achieve flight durations of over 20 minutes...plenty of time to get your kicks!

Electric RC Helicopters - What You Should Know Before You Start

Electric RC helicopters can be a challenge! Most everyone agrees that RC model helicopters are the single most challenging R/C models to build and operate, and electric helicopters are no exception. In fact, because their flight times are shorter than gas powered units, it can hinder someone just learning the ropes and their sensitivity to wind can intimidate beginners too.


They're mechanically complex and they require you to master two distinctly different skills, forward flight and hovering. To pilot them successfully, your FULL attention is required. There have recently been some very impressive advances which give more hobbyists a good shot at getting electric RC helicopters in the air and keeping them there.

But if the question is, "Should my very first R/C model be a helicopter?"...I'd have to say no. You'll be much more ready and relaxed with a heli if you learn to fly a plane or glider first. We strongly recommend that you visit our airplane section, where there's no shortage of other exciting ways to go airborne. But if you've already mastered a plane and feel ready for the demands of a an electric RC helicopter...read on for more details!

What Can an Electric RC Helicopter Do? The answer is, just about anything that involves flying! They'll hover in one spot. Fly backwards and sideways. Do pirouettes while in forward flight. Perform stall turns, loops, rolls, standing loops and rolls (a loop or roll with no forward speed)...even fly upside-down and hover while only inches off the ground. Let's see an airplane, or even a full-size helicopter, do that! In normal forward flight, electric helicopters fly at about 20-30 mph and approximately 150 feet high.

PREREQUISITES


It helps to have good building skills for assembling electric rc helicopters. If not, take the time to develop them in this hobby. You'll need a sufficiently large space and hopefully uninterrupted time...from 2 hours for a simple setup to hundreds of hours for more complex RC model helicopters. Have an open mind and be willing to learn new things. Being methodical will help solve many problems you'll encounter in the hobby. You don't need fast reflexes to succeed, but you must be able to develop new ones. Optimism and sense of humor can help, especially after an electric RC helicopters mishap. More often than not, patience is a virtue.

DUE DILIGENCE


Find a local club and flying field to get a firsthand look of the exciting world of electric helicopters and meet the flyers - they will become valuable help. If there are no local clubs, check out Academy of Model Aeronautics (AMA) and its monthly publication Model Aviation and try to find the closest club in your area. Try to attend a fly-in of electric helicopters or an airshow nearby (see calendar posted in Model Aviation or ask your local hobby shop) and watch how the pros do it.

Once you're committed to the hobby, apply for an AMA membership as soon as possible. It's a requirement for clubs/flying fields, and you'll get a very good insurance policy, too. Get some literature, either an RC heli magazine, a book, or video tape and I highly recommend checking out these RC heli videos.

Essential Radio Control Air Planes Parts

A great way to become familiar with radio control air planes is to understand the parts that make up the control system. These parts


include the transmitter, receiver, servos and battery pack. There are, of course, other parts involved in the airplanes flight, but


these are the ones that make up the brains of your plane.

The transmitter is the control interface between the pilot and the radio control air planes. Transmitters can come in 2, 4 or 6


channels, and generally consist of two joysticks and various other switches and controls. The joysticks are used for left, right, up,


and down controls, and the configuration depends on if the transmitter is a 2 or 4 channel radio. These joysticks on the transmitter can


also be set up by the user, giving the pilot customized control over how the plane responds to the transmitter.

The transmitter sends signals as dictated by how the pilot moves the transmitter part positions, and these signals are picked up by a


receiver which is integrated into the structure of the radio control air planes themselves The receiver takes this signal and transfers


it to the servos which are also located on the plane. The motion of the servos is called proportional motion because the more a pilot


moves a control, the more motion the servo responds with.

Servos are small electric motors with gears and the servos are connected to moveable parts of the radio control air planes. The receiver


converts signals to the servo, and the servo converts this signal into motion by moving the part of the plane it is connected to. Rudder


control, throttle control, landing gear you name it...if there is a servo involved the transmitter can be set up to control it!

All of this motion of the radio control air planes is dependent upon the battery packs used to make this transferring of signals happen.


Battery packs are made of battery cells, the number of cells dictating the power output of the battery pack as a whole. The most common


batteries are Nickel Cadmium (NiCd) and Nickel Metal Hydride (NiMh), which are rechargeable and last through countless charges.

So these parts...the transmitter, receiver, servos, and battery pack, make up the control system of your radio control air planes. No


matter what else you spend your time and money on, its worth the effort to make sure this control system is adequate and functioning


properly.

After all, it is this system that dictates how far you can fly and how much control you have over your plane when its in the air. Try to


remember that it doesnt matter how fast a plane goes if the pilot isnt in complete control.

Radio Control Jets

Its important to note that the engine choice of an aircraft is not an afterthought. It is an essential part of the aircrafts design. You cant put a turbine engine on just any radio control jet. A turbine engine must be supported by a very structurally sound model jet frame. There is a lot of speed and vibration associated with a turbine engine, and your model has to be up to the physical strain.

An important consideration of turbine engines is safety. A turbine engine requires a heavier fuel load, and it operates at high temperatures. If a jet with a turbine engine crashes, fire is likely to follow. If you are operating a turbine engine jet, be sure to carry along a proper fire extinguisher and keep your distance from spectators.

Radio control aircraft can be a fun and exciting hobby. And if you are into speed, radio control jets may be just what you are looking for.

Collective Pitch Works

When a RC helicopter needs to climb or descend, it uses collective pitch. When the command is given for the helicopter to climb, the servos push the entire swashplate upwards. This has the effect of simultaneously increasing the pitch of all the rotor blades. When the pitch is increased, the rotors grab more air as they move, and so lift produced is increased. This increase in lift occurs evenly, so the helicopter does not turn. When the helicopter needs to descend, the swashplate is lowered in the same way. This will decrease the amount of lift produced from the rotor blades.


RC Helicopter Cyclic Collective Pitch Mixing (CCPM)


Model RC helicopters can use more than two servos in combination to control the motion of the swashplate. Software running on the rc transmitter (radio) tells each servo how much to move to achieve the desired motion of the RC helicopter. Each linkage to a servo is represented by a silver rod in the above picture. All of these rods are placed equidistant from each other. A swashplate mix refers to the number of linkages attached. For example: a two linkage swashplate would be controlled by two servo rods, placed 180 degrees apart from each other. A three linkage swashplate would use a 120 degree swash plate mix. The swash plate in the picture above has 6 control rods, and so it would use a 60 degree swash plate mix. Most RC helicopters will use a swashplate with between two or four control rods. The largest RC Helicopters use 4 control rods, because of the extra strength they give the swashplate mechanism.

Using Lithium Polymer Batteries

If you know how much continuous current will be drawn and the capacity of the pack you want to use, you can easily determine what C rating you require. If you are drawing 5A from a 1320mAh pack, simply take the current and divide by the capacity: 5A = 5000mA, 5000mA / 1320mAh = 3.8C.


Burst Current:


LiPo batteries are also given a C rating in terms of burst, which is how quickly the battery is able to discharge for a short time. A burst rating of 20C would mean a 2000mAh battery could supply 20 x 2000mA = 40000mA or 40A for a few seconds.


Selecting the Best LiPo Battery for Your RC Helicopter


To select a battery for your rc helicopter, you first need to know what voltage you require and how much current you will be drawing continuously.

If the motor in your rc helicopter is rated to work with 11.1V, you would need a 3 cell battery.


If you need to draw 20A, and you would like your rc helicopter to have a 10 minute (1/6th of an hour = 6C) flight, you would need a battery with 20A / 6 = 3.3A = 3300mAh.


This means you would need to put a 3s 3300mAh battery with a C rating of 6 or higher in your rc helicopter.


Thunder Power RC has a LiPo battery for almost any electric RC helicopter. Always Remember These LiPo Safety Instructions

Remove the battery pack from your rc helicopter before charging.


Only use chargers designed to work properly with lithium polymer batteries.


Always place your LiPo on a fire-proof surface while charging or use a LipoSack.


Never leave your battery unattended while it is charging.


Never charge a lithium battery if it is below 3.0V per cell.


Never charge a lithium battery that is puffed up, or damaged in any way.