Good Advice for New Model Aircraft Flyers
Model Aircraft flying has many categories that cater for the budgets and individual interests of enthusiasts. Whilst this guide deals with getting started in powered radio control flight, there are many more ways in which you can enjoy the sport. With model aircraft you can experience the excitement of gliding, control line, free flight, slope soaring, indoor electrics, scale, seaplane, pattern flying, pylon racing and helicopter flying. The Geelong Miniature Aircraft Association G.M.A.A. can provide information and support on these aspects. The sport is well catered for in the Geelong region by the G.M.A.A.
G.M.A.A.
The club can individually provide you with a lot of assistance and guidance through the experience of their members and facilities. A visit to the flying field (see below for details), to observe the different types of aircraft in flight, will be a good start. When you arrive at the field introduce yourself to other members, who will be glad to advise you and answer all your questions. You will be able to see and discuss various types of aircraft. Members that you speak to may have different and even conflicting ideas as to the size and type of aircraft, engine and radio which would suit you best, but all will give you the benefit of their experience.
We have created this guide to provide you with a clearer direction as what to look for and suggest that the information contained herein has been very helpful for beginners. We would also recommend a visit and a further talk with the staff at a hobby shop as they will also be able to offer you a choice of items most suited to your requirements.
WHAT ARE THE PARTS OF A POWERED MODEL AIRCRAFT?
A model aircraft has basically the same parts of a full size aircraft except that the pilot is not located in the cockpit but operates the controls remotely by radio. A model aircraft has a body called a fuselage and this provides a means of connecting the engine, main wing and "tail feathers" together. The major component of an aircraft is the wing and it is part alone that does all the lifting and flying. Most wings have ailerons and these are used to turn or bank the aircraft in normal flight. The rear wing or horizontal stabiliser provides for a means of controlling the flying level and by use of the attached elevator the aircraft can be made to pitch up or down. The tail or vertical stabiliser provides for straight flight or yawing using its attached rudder whilst taking off and landing. The engine and propeller provide the forward drive of the aircraft and this in turn provides airflow over the wing and creates lift.
The radio control has several components. The first is the Transmitter or TX and this has various levers which the pilot uses to control the aircraft. The second is the Receiver or RX and this is located on board the aircraft. It is powered by a Ni-Cad battery pack also on board. The transmitter on the ground sends signals to the receiver in the air which interprets the signals into messages to control little electric motors called servos attached to the receiver by electrical cables. These servos mechanically move push rods connected to the various controlling surfaces. The transmitter generally has a range far exceeding the ability of the ground pilot to see the plane.
WHAT TYPE OF PLANE DO I REQUIRE?
Something that is easy for an expert to do may be very difficult, or even impossible, for a learner. The motto, "Learn to crawl before you try to walk", must be heeded here. Most beginners are idealistic, and wish to build a model that looks like a real thing; like a scale model Spitfire. Such a model is to be avoided, because, while it may be fulfiling a dream it will almost certainly be too difficult for the learner to fly.
There are many trainer models designed specifically for the needs of the beginner. A trainer may not look the part of a Spitfire, however, it is generally slow flying, gentle, forgiving, and well within the flying capabilities of the learner. The high wing model, with plenty of dihedral, is generally favoured.
Yes the common factor is "ARF
trainer" for good reason. ARF stands for "Almost Ready to Fly". These are almost fully built and will get you into the air quickly, with a proven record of success. As your first aircraft they are
inherently stable and predictable flyers. Club members will offer support and advice on completing your ARF.
IS COLOUR OF A MODEL IMPORTANT?
A model aircraft flying at a height of several hundred feet, can often be quite difficult to see. Many times a beginner has been heard to make a remark such as: "I can see it, but I can't tell which way it's going"! A model painted with unsuitable colour scheme can sometimes become almost invisible against a sky background. For instance, a white plane can blend into a white cloud background, or a light blue plane can disappear in a blue sky. It stands to reason therefore, that a colour scheme of a model is very important especially for the beginner.
Certain colours, such as light blue, white, light grey and silver, can camouflage a plane against the sky and should therefore be avoided. Best colours for visual reflection, are bright warm colours such as red, orange, yellow etc. Light coloured models should be trimmed with a contrasting dark colour. Remember, a good colour scheme can make a model easier to see and therefore easier to fly.
WHAT SIZE ENGINE SHOULD I BUY?
The size and type of engine, will depend on the beginners choice of model however many kits will often suggest a choice of two, or even three, different sizes of engine, all of which may be considered suitable for that type of aircraft. A good general size motor for the beginner is the 46-size two-stroke engine as it offers good value for the beginner and complements the ARF Trainers.
Model aircraft engines are also available in four stroke configurations but are more expensive.
WHAT BRAND RADIO SHOULD I BUY?
Many years ago, when Radio Control was in its infancy, many Radio Control Sets and Engines offered for sale in Model Shops were still in the experimental stages and were often unreliable. Some brands quickly gained a bad reputation because of this. Today, however, only the best have survived the test of time. Equipment now available is a far cry from the primitive beginnings of yesteryear. In general, unreliability is a thing of the past and many excellent brands are presently available. Choice is usually determined by price, with consideration being given to special features or extras as optional accessories. Many clubs, instructors offer the state of the art "Buddy Box" training facility, so talk with an instructor and then buy.
What ever you decide one point that is not to be questioned is the FREQUENCY of your radio. The 36 Megahertz band is dedicated to model aircraft and boats.
HOW MANY CHANNELS DO I NEED?
This is best summed up by saying "A minimum of four channels". You need to control the throttle and the three primary flying surfaces, Ailerons, Elevator and Rudder. Two and three channel radio sets, designed for use with model cars or boats are totally unsuitable for use with model aircraft.
WHAT IS A NI-CAD BATTERY?
Ni-Cad is the abbreviated term given to Nickel Cadmium rechargeable batteries. Low cost radio sets often use dry cell batteries as a power source. While these sets are quite efficient, the batteries are not rechargeable and therefore need to be replaced frequently at considerable cost. Other sets at a higher cost are supplied with Ni-Cad batteries and charger, which eliminates frequent and costly battery replacement.
REMEMBER: Always fully charge your batteries prior to flying.
IS SECOND-HAND EQUIPMENT O.K.?
For the beginner with limited finance, buying second-hand equipment makes good sense. However, the unwary can quite easily end up spending more than they bargained for if not careful. The key word here is caution. Consider this question carefully, "WHY IS THE VENDOR SELLING THIS EQUIPMENT?" You may be buying someone else's troubles. Wherever possible, seek the help and opinion of an experienced modeller.
A radio set may, for instance have faulty components or batteries and have caused a number of costly crashes. An engine may be worn out. A second-hand aircraft may be badly designed or built, or may have a warp in the wing that has caused considerable flying problems and even crashes. On the other hand, much equipment offered for sale is in very good condition and can be a bargain for the beginner. If in doubt, allow for the extra cost of at least $100, which you may have to pay for servicing or replacement parts.
WHAT IS A FLIGHT BOX?
A flight box, is used to carry all of a modellers accessories and equipment, as needed at the flying field. They come in all shapes and sizes, either commercially made and sold, or built by the modeller himself/herself to his own requirements.
Below is a suggested list of contents for your flight box:
• 12 Volt motor cycle battery or similar,
• Glow-plug battery or power panel
• Glow-plug lead and adapter
• Electric Starter
• Spare Glow plugs
• Container of ready-mixed fuel
• Spare Propellers
• Container of assorted screws,nuts, washers and fittings etc
• Glow-plug spanner
• Pack of 5-minute epoxy
• Packet of pins
• Cleaning cloth & cleaning spray for your model
SAFETY IN THE FIELD
Model aircraft are dangerous if care and safety is not considered. All flyers are expected to operate with the best interests of safety to people and property. When visiting a field please do not touch unless invited to do so by the owner of a model. As a spectator, if an engine is being started, do not stand at the side or front of a model. Always stand behind and well clear of the aircraft!
If you have a pet please ensure that is restrained, or better still left at home. Whilst all clubs encourage junior membership, children should be kept away from the pits and flight line.
SHOULD I JOIN A CLUB?
A model aircraft is a device that requires considerable mental and physical effort in both its construction and use. Much skill is required in order to fly a model, which, if carelessly used is capable of causing serious injury. The Civil Aviation Safety Authority (CASA) is the governing body of air safety in Australia and you as the operator of a model aircraft are bound by its legislation. You cannot fly model aircraft in public places such as parks and schools etc. Infringements and penalties are severe for offenders. The beginner would be advised to join a club which will provide all the facilities to make sure model flying is enjoyed to the fullest. Learning to fly is definitely not a "do-it-yourself" exercise. The club has instructors willing to devote their services at no charge.
The instructor is the newcomer's best insurance against costly crashes whilst learning to fly. More important however, is the fact that the club members are covered by insurance, in the event of damage or injury caused by their models. The clubs' also provide social events, construction advice, contests and fellowship.
WHY DO I NEED AN INSTRUCTOR?
Model aircraft are no different to full size aircraft and it would be disastrous to try and fly without lessons. The instructor is a person with considerable flying ability and skill.He is willing to pass on his knowledge and expertise to the beginner. He will help the newcomer to avoid
costly mistakes and crashes. Initially, instructors will look at the
construction and airworthiness of your aircraft, test fly your
model and perform the tasks of take-off, trimming and
landing. The beginner is therefore able
to have fun while learning. The
beginner knows that should he/she
make a mistake, or cause the
plane to become out of
control, the instructor is
ready to take-over control
instantly, and prevent a
crash. Flying instructors are very willing to help and contact can be made
at the GMAA field.
HOW LONG WILL IT TAKE ME TO LEARN?
A member of a club was a former Air Force Pilot flying F86 Jets and was once asked by a newcomer:
"Which is easier to fly, a full size aircraft, or a model"?
"Let me put it this way", the member replied, "When I learnt to fly a full-sized aircraft, I soloed in four days.
However it took me nine months to solo on a model. Does that answer your question".
The truth for the beginner is this: A model aircraft is a difficult contraption to learn to fly. The main problem lies in something called orientation. With a full sized aircraft, a pilot's left and right always remains in the same direction as the aircraft's left and right. The same is true, of a model when it is flying away from the pilot. However, when the model completes a 180-degree turn and flies back towards the pilot, some of the controls are reversed. If a pilot pushes the stick to his left, the model will turn towards his right!
There is no fast or easy way to learn how to fly, it is a skill that cannot be begged, borrowed, or stolen, only practice will make perfect. No set time can be allowed for learning to fly. Everyone learns at a different rate. Children generally learn to fly much more quickly than adults. As a general guide from the experience of many people who have learned in the past, if you practice for say four flights on one day of each week, allow no less than six weeks to fly solo. Or in case of those who cannot devote the time, as much as twelve months or more.
FIELD LOCATIONS
GMAA Airstrips are located at Dog Rocks Rd Fyansford and Shepherds Rd Mannerim.
Dog Rocks Field |
Mannerim Field |
GMAA CLUB MEETINGS
Meetings will be held on the third Tuesday of each
month , the Venue -
Geelong East Uniting Church
Cnr of Boundary Rd & Ormond Rd,
East Geelong at
8:00pm. Entry is via Boundary Rd, Church car park.
This information has been compiled for your easy introduction into a great and very enjoyable sport for people of all ages by the GMAA.
- Felix Agius
|