GREAT PLANES Micro Whizz Manuale di istruzioni - Pagina 15
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7. Reinforce holes for wood screws with thin CA where
appropriate, such as servo mounting screws.
8. Confirm that all controls operate in the correct direction
and the throws are set up according to the manual.
9. Make sure there are silicone retainers on all the
clevises and that all servo arms are secured to the
servos with the screws included with your radio.
10. Balance your propeller (and spare propellers).
11. Tighten the propeller nut and spinner.
12. Place your name, address, AMA number and
telephone number on or inside your model.
13. If you wish to photograph your model, do so before
your first flight.
14. Range check your radio when you get to the flying field.
FLYING
The Great Planes Micro Whizz ARF is a great-flying model
that flies smoothly and predictably. The Great Planes Micro
Whizz ARF 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 any unusual sounds, such as a
low-pitched "buzz," this may indicate control surface
flutter. Because flutter can quickly destroy components of
your airplane, any time you detect flutter you must
immediately cut the throttle and land the airplane! Check
all servo grommets for deterioration (this may indicate
which surface fluttered), and make sure all pushrod
linkages are secure and free of play. If the control surface
fluttered once, it probably will flutter again under similar
circumstances unless you can eliminate the free-play or
flexing in the linkages. Here are some things which can
cause flutter: Excessive hinge gap; Not mounting control
horns solidly; Poor fit of clevis pin in horn; Side-play of
pushrod in guide tube caused by tight bends; Poor fit of
Z-bend in servo arm; excessive play or backlash in servo
gears; and insecure servo mounting.
Takeoff
Before you get ready to takeoff, see how the model handles
on the ground by doing a few practice runs at low speeds on
the runway. Check all fasteners and control linkages for
peace of mind.
Remember to takeoff into the wind. When you're ready, point
the model straight down the runway, hold a bit of up elevator
and then gradually advance the throttle. As the model gains
speed decrease up elevator allowing the tail to come off the
ground. One of the most important things to remember with
a tail dragger is to always be ready to apply right rudder to
counteract motor torque. Gain as much speed as your
runway and flying site will practically allow before gently
applying up elevator, lifting the model into the air. At this
moment it is likely that you will need to apply more right
rudder to counteract motor torque. Be smooth on the
elevator stick, allowing the model to establish a gentle climb
to a safe altitude before turning into the traffic pattern.
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 Micro Whizz ARF 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, 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 she
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. Monitor your battery charge level, but use this first flight
to become familiar with your model before landing.
To initiate a landing approach, lower the throttle while on the
downwind leg. Allow the nose of the model to pitch
downward to gradually bleed off altitude. Continue to lose
altitude, but maintain airspeed by keeping the nose down as
you turn onto the crosswind leg. Make your final turn toward
the runway (into the wind) keeping the nose down to maintain
airspeed and control. Level the attitude when the model
reaches the runway threshold, adjusting the throttle as
necessary to maintain your glide path and airspeed. If you
are going to overshoot, smoothly advance the throttle (always
ready on the right rudder to counteract torque) and climb out
to make another attempt. When you're ready to make your
landing flare and the model is a foot or so off the deck,
smoothly increase up elevator until it gently touches down.
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
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