Heli Basics
I want to welcome you into the great hobby of R/C Helicopters. In this section I will try and help in the selection and setup of your heli. Lets start off with your selection of helicopter.
There a many different brands and types of helis to choose from. I am not going to get into detail of each brand but describe the types. There are basically 4 types of helis, 30 size 50 size, 60 size and 90 size. This was once the only decisions you needed to make. Since 30 size refers to engine size you can bet its cheaper to buy, and to run. The 60 size of course has a larger engine and larger blades, thus costs more to buy and more on fuel consumption. Nowadays we have 30 size helis along with a new 46-50 size class. We also have 60 size helis with 75 and 90 size engines mounted in them. These newer helis have much better power then the older 30-60 size. Some newer helis come as a 30 and can be upgraded with minimal work and parts to a 50 size with just a few dollars. This goes the same for some 60 size helis. This helps in keeping costs down while in the learning period and can grow with your abilities. As far as a selection in brands, I can not tell you which to buy but as your getting started in the hobby you want to buy a heli that is not expensive and parts are cheaper and available when you need them.
Lets start off with some basic heli items needed to get started.
You will need a heli, engine, blades (main and tail) radio, starter with either a special wand attached or a cone on the heli. You will need a field box to keep your equipment in, field box battery, fuel can to keep your fuel in, glow plug igniter, glow plugs power panel for field box, allen wrenchs. Several tool you may pick up later as you progress in your training. Also getting a flight simluator is a great way to help with your flight training, there are several flight simlutors to choose from. You will also need AMA insurance (ACADEMY OF MODEL AERONAUTICS). The AMA provides you and your club with insurance in the event of a mishap. While learning to fly there is a possibility of a you losing control of your helicopter and it hitting a person, or someone's personal property, house, car etc. If this was to happen the AMA will provide you with liability insurance. It also covers your club and helps prevent us from losing our field. (YOU MUST HAVE AN AMA CARD TO FLY AT ANY CHARTER FIELD).
To join the AMA you can apply online at www.modelaircraft.org
You will also need a good gyro. A gyro keeps your heli from spinning around its axis. There are many types out there, The older Ball Bearing type, Piezo type, and the newer Heading Hold Type. There many differences between all these type and to tell you about all of them will take a long time and all you really need to know is The newer HH is the best way to go. This doesn’t mean a piezo is not good, it is. So it depends on your budget.
A Pitch Gauge is also needed to setup your helis main blades.
Blade Balancer will make sure you don’t have any unwanted shakes in the heli.
You will need a good Heli radio and receiver. I say heli radio because most radios transmitters are for airplane flyers and do not have mixing capabilities needed to operate a heli. The newer radios have both heli and airplane software so you can do both. The only difference is the switch positions needed for certain functions on a heli.
With the radio comes the servos, receiver and battery. Basic Helis use 5 servos:
1-Aileron
2-Elevator
3-Throttle
4-Collective
5-Rudder
Some use more, for the same function. Ex:3 servos for the aileron and elevator instead of two! This depends on the heli you are flying. Some say its better ,some say you don’t need it. Lets leave it at that for now.
R/C Helis are operated by our transmitters 2 sticks. In the U.S.A most of us fly with the left stick controlling rudder, throttle and collective. The throttle and collective operate on the same stick movement, Left stick-Up-Down. That’s where heli mixing comes in. The same stick controls rudder, left stick-Left-Right. The right stick controls the swash plate, which controls bank left, bank right, forward and backwards, YES BACKWARDS. So you see there is a lot of co-ordination going on with helis.
A heli wont fly unless its setup properly. There are a few factors regarding setups. These will determine how the heli reacts to your stick inputs. If you follow your manual, your heli will have a basic setup to help a beginner learn to fly. As you progress you will need different setups to let the heli do what you want. I believe in a technique called the Mike Mas setup. You can find info on the net regarding him. I will say this, his setup will allow you to setup any heli in the future the same way over and over. Our helis lift off the ground by adding collective or pitch to the blades. A positive pitch lets our helis lift off, if not inverted. While a negative pitch lets it come down. Gravity also does that for us but its not to fun when this happens.
Most beginners learn by using a +10 to a -3 setup. While this is fine for learning it can lead into problems. For one, you will need to setup different settings as you fly and learn aerobatics. If you setup a positive pitch of about 10 degrees and a Negative pitch of 10 degrees with 0 degrees in the center you will always know where 0 degrees is on the stick. You will also not need any other setups in the future as this will allow any aerobatic flying. Remember: THESE ARE NOT TOYS !!!!!!!! Always treat them with respect and have someone who knows what they are doing help while you learn to fly them. They need a lot of room while you are learning, and should never be flown in public places. They can and will get out of control if you don’t know what you are doing.
Helicopter Fourms and Helicopter Merchants
www.rchelimag.com
www.helihobby.com
www.heliproz.com
www.heli-world.com
www.runryder.com
