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A COMPLETE AND COMPREHENSIVE MANUAL ON FLYING DOUBLE PROP
RC ELECTRIC PLANES DIRECT FROM THE TEST FIELD
Written and Illustrations by Hoel Ibardolaza

First step in flying is making sure all your batteries on transmitter and receiver are fully charged or new. You don't want your plane getting out of control in the middle of something. A regular AA battery for transmitter can last for up to 7 continuous flight (about 3-4hours) while a good high capacity rechargeable battery can last longer.

Second Step is to check that wind condition is right for flying.

A red ribbon is included for mounting on the tip of the transmitter antenna to gauge windspeed. Notice when wind blows against ribbon and see the level of safeness and ideal flying.

a. ideal - plane can be controlled easily. good for beginner
b. moderate - plane still very controllable but expect any wind changes at this level
c. caution should be taken - unpredictable wind can push the plane up and down
d. abort flight - malevolent winds can carry the plane farther and drift making it difficult to retrieve

Usually, the best time to fly rc planes is at 6:30 - 7:30am and 4:30 - 5:30p.m. at regular days and can extend during the summer, it is also a good idea to look at the trees to gauge strength of the wind.

Third Step is to find a flying field. The Wider the field the better. Minimum coverage should be 200-300 square ft to be safe as opposed to only 100ft. Choose a place that does'nt have or few obstruction like trees, electric post and house as these can be prime targets even when you try to avoid them. Also plan a route and where to land the plane incase something happens - in the bushes or cushioned areas. Some rc planes requires wider spaces to turn around, also consider a margin of error or wind push so you dont end up hitting any structures.

Note: playing on a grassy field requires you to modify your landing gears into a skid or else get a larger and lighter wheels.
Obstruction - visibility is important. always keep plane in sight.

Flying a plane in an obstructed area is not a good idea unless you are an expert. Beginner pilot might panic when an obstruction blocks sight of the plane. so it is advisable to keep plane always in sight and inspect flying route before playing.

It is sometimes hard to measure the distance by sight of your plane and a fixed object, so choosing a flying area and limiting the plane path is important. you might not know your plane is already about to hit a tree.

A pilots nightmare - accidents happen primarily because of pilots error. If a pilot is not aware of wind condition, condusiveness of flying area and controlling the airplane then he may not be able to bring his plane back intact.

a. hitting a tree - you surely dont want to climb that high. (usually plane is intact or small fold in the wing due to impact)
b. hitting a power post - fatal to the airplane wing (at highspeed collision this will tear or break the main wing apart.
c. head to head collission with a wall - a fatal blow usually shatters the nosecone into tiny parts.
d. nose dive - if airplane dives on concrete, impact will break nosecone with cracks sometime extending to fuselage or worse breaking mainwing.
e. hitting a house chimney - nosecone and wing damage
f. diving in the middle of thick bushes - plane intact but will leave with bruises after retrieving the plane.
g. diving in a pool of water - plane intact but may damage the electronics and motor.(advise, modify by wrapping your electronics to waterproof with plastic)
h. hitting a person or an animal - small fold to wing or breaks it if impact is strong.

Solution: know when to add power to gain altitude and avoid collision and when to reduce power for slower approach in preparation to bank or turn plane around. Familiarize yourself with speed level on left and right turns.

Tip: flying above plantations and newly plowed field will increase altitude gain due to rising air current or in summer they call it "thermals"

If you are planning to take off on a runway, make sure it is flat free of stones and pebbles and wide enough for the plane to recover incase of control error or else you will end plane hitting the concrete gutter and damaging the wings, fuselage or props. Also, runway should be straight against the wind, if not abort process and try handlaunching instead.

For Beginners: before taking off, start by taxiing first and make yourself comfortable with the controls on how the plane responds as it moves away from you and return to you. check the maximum taxi range so you are aware of reception range. This will enable you to take caution when already flying and to limit plane range. This is a much better practice of patience than forcing to fly and go home with a broken plane.
When you are already comfortable with how your plane responds to taxiing, try adding more power to two motors, but make sure you still have enough battery power on your plane (you can measure level of power by doing full throttle and listening to motor sound and pulling strength prior to taxi practice or before playing with the plane).

By adding more power to the two motors, the plane will automatically rise to an altitude, reducing power will give it a slow descend. Start with a rhythmic pattern like: full (until plane rise to about 5ft) , then quickly shift to medium and full and medium and full, then hands off from controller if you think your plane will crash into something - Planning is important. You can try turning the plane left or right but always remember to take your hands off from the controller when something unexpected happens - the plane was designed to level itself and land safely.
Beginners should always make sure his plane is flying at a right level and smoothly, however the wind may affect the stability at certain times. It is advisable to be calm and stay focused when flying.

Taking off

a. charging for take off - notice plane does'nt have back wheel because it rarely uses them, the tail rises to a horizontal level when the plane runs for take off as back wing slides through the air it pushes plane up to maintain horizontal level as main wing gathers pressure (left stick on full throttle)
b. plane rises at an angle visible enough to show its already ascending (left stick on full throttle)
c. immediately level the plane by reducing throttle on left stick
d. immediately add throttle to gain altitude.
REMEMBER: should be rythmic

Stalling

Any plane will stall when too much power is applied (full throttle on left stick) and charging against strong winds. They call this "porpoising" and will be violently followed by a nerve wrecking nose dive. If you dont have enough altitude, your plane will hit the ground and get broken if if is on a concreate ground.

If this maximum stall happens, just reduce to continuous medium power about 5 seconds on left stick and immediately to low throttle and again another medium power.

REMEMBER: should be rythmic

Flying

When already gaining up altitude, your airplane will fly as straight and as stable but any slight change in wind can cause the plane to change its paths.

a. no wind
b. when wind pushes from the right, the plane will go left, correct this by adding power to the left motor (push right on right stick) - you should be able to do this quickly and know when to release stick
c. when wind pushes from the left, the plane will go right, correct this by adding power to the right motor (push left on right stick) - you should be able to do this quickly and know when to release stick

Bad Flying

a. Crashes usually happens when your thumb freezes out of "shock" on the directional control stick. too much power on right motors will make the plane plunging at high speed
b. too much power on left motors will make the plane plunging at high speed

Always have presence of mind and caution when flying. For beginners, it is advisable not to prolong pressing on left and right directional stick.

Note: when you think plane is already flying level and flat, just release the left or right directional stick or try a pulse pushing instead of a continuous push.

Banking

A plane turns around gracefully by banking. The mainwing including the fuselage tilts lower on its side while turning. The plane is capable of banking at highspeed like a jet fighter but always take caution, plane may not be able to gain lift during low altitude banking. If anything goes wrong, just leave controller and plane will start to recover itself and descend slowly.

Handlaunch

You can handlaunch the plane when there is no ideal runway. Beginners, can practice handlaunch with batteries installed on plane as balance and kneel on the ground (so plane dont get damaged when launching incorrectly) Do this until you master handlaunching and capable to launch standing straight. When you are ready for powered flight then follow the other procedures.
a. too high - will sometimes stall and crash
b. perfect - level and pick up air speed
c. bad - crashes to the ground

It is best to find a wide area with small bushes to practice the handlaunching. plants can serve as cushion when plane falls.

Altitude

Gain altitude with spiral motion by making pulse full throttle. Once in the upstream you can enjoy gliding without power and just use left and right direction.

Orientation

At the end of the day you want to make sure you go home with the plane intact again for the next day. When flying, always keep your eyes on the plane specially when its far enough for you to distinguish if its flying away or towards you, notice the the front and back view of an airplane, you might not know it is already flying away from you and get drifted until it looses reception and crashes to the wilderness.

Landing - cut power off and the plane will slowly decend while slowly turning left and right control stick for alignment. Just add power when landing gets short or over. This is a good practice that will enhance skill of estimation (knowing when to turn, slow down and cut power). Beginner can try landing their plane ontop some bush plants that serve as cushion this can save your plane from getting damaged.

End Note: Always make sure your plane is level and flat when flying. Do not force plane to fly at highspeed on strong winds.


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