GREAT PLANES F4U Corsair Manual de instrucciones - Página 16
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5. Use threadlocking compound to secure critical fasteners
such as quick connect pushrod connectors, etc.
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6. Make sure all hinges are securely glued in place.
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7. Reinforce holes for wood screws with thin CA where
appropriate (gearbox mounting screws, etc.).
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8. Confirm that all controls operate in the correct direction
and the throws are set up according to the manual.
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9. Make sure that all servo arms are secured to the
servos with the screws included with your radio.
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10. Make sure any servo extension cords you may have
used do not interfere with other systems (servo arms,
pushrods, etc.).
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11. Balance your propeller (and spare propellers).
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12. Tighten the propeller nut and ensure the nose cone
is securely attached.
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13. Place your name, address, AMA number and
telephone number on or inside your model.
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14. Cycle your battery pack (if necessary) and make
sure it is fully charged.
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15. If you wish to photograph your model, do so before
your first flight.
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16. Range check your radio when you get to the flying field.
The Great Planes Corsair is a great-flying model that flies
smoothly and predictably. The Great Planes Corsair does not,
however, possess the self-recovery characteristics of a primary
R/C trainer and should be flown only by experienced R/C pilots.
CAUTION (THIS APPLIES TO ALL R/C AIRPLANES): If,
while flying, you notice an alarming or unusual sound such
as a low-pitched "buzz," this may indicate control surface
flutter. Flutter occurs when a control surface (such as an
aileron or elevator) or a flying surface (such as a wing or
stab) rapidly vibrates up and down (thus causing the noise).
In extreme cases, if not detected immediately, flutter can
actually cause the control surface to detach or the flying
surface to fail, thus causing loss of control followed by an
impending crash. The best thing to do when flutter is
detected is to slow the model immediately by reducing
power, then land as soon as safely possible. Identify which
surface fluttered (so the problem may be resolved) by
checking all the servo grommets for deterioration or signs
of vibration. Make certain all pushrod linkages are secure
and free of play. If it fluttered once, under similar
circumstances it will probably flutter again unless the
problem is fixed. Some things which can cause flutter are;
Excessive hinge gap; Not mounting control horns solidly;
Poor fit of clevis pin in horn; Side-play of wire pushrods
caused by large bends; Excessive free play in servo gears;
Insecure servo mounting; and one of the most prevalent
causes of flutter; Flying an over-powered model at
excessive speeds.
FLYING
Hand Launch
For the first flight, it is a good idea to have an assistant launch
the airplane for you. This allows you to keep your hands on the
controls and correct any trim problems that become apparent.
Have your assistant hold the bottom of the fuse just behind the
wing. Throttle up to full power and have your assistant give the
Corsair a firm, but not hard, toss straight ahead. Apply a small
amount of up elevator and gently climb out to a comfortable
altitude. Be careful not to climb too fast as you will lose airspeed
and the Corsair may stall.
For reassurance and to keep an eye on other traffic, it is a
good idea to have an assistant on the flight line with you. Tell
him to remind you to throttle back once the plane gets to a
comfortable altitude. While full throttle is usually desirable for
takeoff, most models fly more smoothly at reduced speeds.
Take it easy with the Great Planes Corsair for the first few flights,
gradually getting acquainted with it as you gain confidence.
Adjust the trims to maintain straight and level flight. After flying
around for a while, and while still at a safe altitude with plenty of
battery power remaining, practice slow flight and execute
practice landing approaches by reducing the throttle to see how
the model handles at slower speeds. Add power to see how the
Corsair climbs as well. Continue to fly around, executing various
maneuvers and making mental notes (or having your assistant
write them down) of what trim or C.G. changes may be required
to fine tune the model so it flies the way you like. Mind your
battery power, but use this first flight to become familiar with your
model before landing.
Because this model is very lightweight, it does not retain energy
well. Performing a nice, gentle, gliding landing may be difficult.
Instead, we recommend landing the Corsair under power. You
will want to bring the Corsair in at reduced throttle, modulating
your descent using the throttle. When you are just above the
deck, use a quick "blip" on the power to flare the Corsair and rest
it gently on its belly.
One final note about flying your model. Have a goal or flight plan
in mind for every flight.This can be learning a new maneuver(s),
improving a maneuver(s) you already know, or learning how the
model behaves in certain conditions (such as on high or low
rates). This is not necessarily to improve your skills ( though it is
never a bad idea!) , but more importantly so you do not surprise
yourself by impulsively attempting a maneuver and suddenly
finding that you've run out of time, altitude or airspeed. Every
maneuver should be deliberate, not impulsive. For example, if
you're going to do a loop, check your altitude, mind the wind
direction (anticipating rudder corrections that will be required to
maintain heading), remember to throttle back at the top, and
make certain you are on the desired rates (high/low rates). A
flight plan greatly reduces the chances of crashing your model
just because of poor planning and impulsive moves.
Remember to think.
Have a ball! But always stay in control and fly in a safe manner.