GREAT PLANES Spectra Select 사용 설명서 - 페이지 9

{카테고리_이름} GREAT PLANES Spectra Select에 대한 사용 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. GREAT PLANES Spectra Select 12 페이지. Ready-to-fly 2-meter electric sailplane

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with the wings level and the nose pointing at a spot on the

ground about 50 feet in front of you. Have a friend stand off to

the side of you and tell you whether the nose is pointing up or

down. Show your friend the previous picture so he will know

what to look for. If the SPECTRA SELECT is launched with the

nose up or launched too hard it will climb a few feet, stall and

fall nose first straight down. With the nose pointed down slightly

the sailplane will accelerate down until it picks up enough flying

speed, then level off and glide forward. The plane should be

launched with a gentle push forward. With a little practice you

will be able to launch it at just the right speed so it soars straight

ahead in a long and impressive glide path. Adjust the elevator

and rudder trims on your transmitter to get the plane to fly

straight ahead in a smooth glide path.

Once you get the hang of launching it you can try turning the

plane during the trim flights by gently applying a "touch" of

right or left rudder. You can also try "flaring" the landings by

slowly applying a touch of up elevator (pull the stick back) as

the plane nears the ground. The SPECTRA SELECT will

continue to fly just a few inches off the ground for a

surprisingly long distance. It is important you don't "over-

control" the model. Make any control inputs slowly and

smoothly rather than moving the transmitter sticks abruptly.

First Flights

Find a BIG, OPEN field for your first flights. The bigger the

better as you won't have to worry about where you need to

land. Ground based objects (trees, poles, buildings, etc.)

seem to attract model airplanes like a magnet. Again, we

would like to recommend that you find an experienced

pilot to help you with these first flights.

Note: You need to remember that your radio control

responds as if you were sitting in the cockpit. When you

push the transmitter stick to the right, the rudder moves

to the plane's right! This means that when the plane is

flying towards you it may seem like the rudder controls

are reversed (when you give "right" rudder the plane

turns to your left–which is the plane's "right"). It is

sometimes easier to learn to fly the plane if you always face

your body in the direction the plane is flying and look over

your shoulder to watch the model.

Turn on your transmitter and then your receiver and hold the

model as you did for the hand launched test flights. Hold it

firmly and move the throttle stick up to test the motor

operation. When satisfied that everything is responding as it

should, launch the model straight into the wind just as you

did without the motor running. It is important that you do not

throw the airplane up or it may stall and hit the ground. If you

launch it level or slightly down the airplane will accelerate

and start climbing on its own.

Don't worry about accomplishing very much on your first

flights. Use these flights to get the "feel" of the controls and

the SPECTRA SELECT's flying characteristics. For the first

few seconds of the flight allow the airplane to gently climb

straight ahead. Try to keep the plane upwind and just

perform some gentle "S-turns" (always turning into the wind)

until it is time to set up for landing. Have a helper adjust the

trims on your transmitter (a little at a time) until it has

reached a comfortable soaring altitude (200' - 300'). Turn the

motor off and allow the SPECTRA SELECT to soar around,

keeping the airplane upwind of yourself. When you feel it's

getting too low, turn the motor back on and climb back to

altitude. It can be very hard for a beginner to fly a plane

straight towards him as he would have to do if the plane

were downwind. While the SPECTRA SELECT is gliding

have a helper to adjust the trims on your transmitter (a little

at a time) until the plane will fly straight and level with the

transmitter sticks in their neutral position.

When you can hear the motor starting to die off and/or the

plane does not want to climb anymore it is time to shut off

the motor for the last time (especially if you have BEC.) It is

important to remember that you no longer have enough

power to climb out again, so you only get one chance at

landing. When it is time to land, just continue performing the

gentle "S-turns" upwind and let the plane glide onto the

ground. Don't worry about where the plane lands–just miss

any trees, etc. If you need to "stretch" a landing you can

switch the motor back on but do not expect it to be able to

carry you very far. When NiCd batteries start going dead,

they really go dead in a hurry. An alternative to allowing the

battery to become weak before shutting the motor off for

good is to time the motor runs so you can leave enough

"juice" in the battery for a couple of "go arounds" if needed.

Note: BEC is a system offered by most modern speed

controls that allows you to get rid of the radio battery and

use the motor battery as the means for supplying power

to the radio. The BEC will cut power to the motor when

the motor battery is low on charge but it will still give the

modeler enough power to use the radio normally for a

short time until landing. Keep in mind that while there is

still enough charge to use the radio the motor battery is

low, so you should land within 10 to 15 minutes of motor

cut out time.

Practice flying directly into the wind (upwind of yourself)

without letting the plane get off course, and then turn and

come downwind until the plane is even with you and try it

again. When you are comfortable with flying directly into the

wind, start letting the plane go behind you (downwind) a

little before you start back upwind. Continue this until you

can fly directly towards you from downwind without getting

disoriented. At this point you can start to establish a "landing

pattern" and bring the sailplane in for a landing from

downwind. Always land into the wind. This enables the

plane to be flown as slowly (ground speed) as possible for

accurate and damage free landings.

It is probably not a good idea to try and fly around at a low

altitude with the motor on during your first flights. This will

cause the airplane's speed to increase and make the

controls more responsive which is just what a beginner does

not need.