GREAT PLANES Spectra Select 사용 설명서 - 페이지 11

{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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probably producing another. Just watch out for "sink" which

is often found behind and between thermals.

As you might expect, with all this air rising, there is also air

sinking. This air is the electric sailplane pilot's nightmare that

can really make soaring challenging. "Sink" is usually not as

strong as the thermals in the same area, but it can be very

strong. Down drafts of many hundreds of feet per minute are

common on a good soaring day. These down drafts can

make a sailplane look like it is falling out of the air. Because

of this, it is important that you do not let the sailplane get too

far downwind.

When encountering sink, immediately turn and fly 90

degrees to the direction of the wind (towards you if

possible). Apply a little "down elevator" and pick up some

speed to get out of the sink as fast as possible. Every

second you stay in the sink is precious altitude lost.

Pointers for Contest Soaring

Pay Attention! – Pay close attention to the electric

sailplanes flying before you, watch them and try to establish

where and when the thermals are being formed. Thermals

are often formed in cycles and can be fairly regular, so if you

keep track of the time intervals you will have a pretty good

idea of when and where a thermal may be generated.

Watch The Birds! – Thermals suck up small insects that

many birds love to eat. A bunch of swallows flying around in

one area may indicate a thermal. Soaring birds (hawks,

vultures, eagles etc.) are the best thermal indicators. They

not only show you where the thermal is but they also show

you where the center is. These "Masters of the Sky" will

often fly right along with electric sailplanes.

Practice Those Landings! – Most thermal contests are

won or lost during the landing. Establish a particular landing

pattern and try to stick to it for all landings. Learn to shift

your pattern to account for the wind and the particular flying

field characteristics.

Concentrate – Keep your eye on your electric sailplane

during your contest flights. Have a helper or your counter

watch the other planes in the air. Sometimes your electric

sailplane will wiggle so quickly or gently that you may miss

it if you are not paying close attention. If you find a

productive thermal, don't leave it because your helper tells

you that someone else has found a different one.

Know Your Electric Sailplane! – Learn what your electric

sailplane will and won't do and fly within this envelope. This

will allow you to ride thermals downwind while knowing

when you have to head back to make your landing safely.

Learn From The Wind! – Keep track of which way the wind

is blowing. If the wind suddenly shifts, there is some thermal

action fairly close to you. The air is probably being either

sucked up into a thermal or falling out of some sink. In either

case it is often a good idea to fly in the direction the wind is

blowing if your sailplane is in the general area. This will take

you towards a thermal if there is one or away from the sink,

both of which are desirable.

Have a ball! Remember to always stay in control and fly

in a safe manner.

OTHER ITEMS AVAILABLE FROM

GREAT PLANES

Great Planes Spectra ARF

The all-wood, preassembled, 2-meter Spectra ARF arrives

expertly covered with Top Flite

Goldfire 550 motor and 8 x 4 folding prop quickly carry it to

soaring altitudes following an easy hand-launch. The wing

features a triple taper planform and semi-symmetrical airfoil

that increases stability for smooth, forgiving flight. Required

are a 3-channel radio, NiCd battery and charger. GPMA1050

Great Planes Spirit

™

The 78.5" span Spirit sailplane offers the ultimate in flying

ease and enjoyment! Its all wood airframe has control

surfaces built-in. Once the slide-together wing and bolt-on

tail are in place, it's ready to fly. Plus, it's covered with Top

Flite MonoKote, with stripes on the wing bottom to make

orientation easy. It'll delight first-timers with its slow, steady

flight, and competitors with its thermal chasing abilities. The

Spirit Select RTF comes complete with a 3-channel Hitec

Focus 3 SS radio, with servos and foam-wrapped receiver

preinstalled – only a dozen "AA" cells are required! GPMA16**

MonoKote

film. An included

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