Great Planes Spitfire 40 Kit - GPMA0179 - Manual (Page 34)

just opens completely, but does not bind (a buzzing sound of
the servo trying to push the arm farther than wide open).
Additionally, at low throttle with the throttle trim at center the
barrel should be open just slightly – enough to allow the engine
to run, while with the trim pulled all the way back the barrel is
completely closed, again without binding.
❏
5. After setting the control throws (see following box), turn off
the receiver and transmitter.
Note: The balance and control throws for the Spitfire have
been extensively tested. We are confident that they
represent the settings at which the Spitfire flies best.
Please set up your model to the specifications listed
above. If, after you become comfortable with your Spitfire,
you would like to adjust the throws to suit your tastes,
that’s fine. Too much throw can force the plane into a stall,
so remember, “more is not better.”
❏
1. Rough-cut the canopy from the flashing, leaving 1/4" of
excess below the cut lines. Test fit the canopy to your model and
trim as required.
❏
2. Install the instrument panel decal. If desired, install a pilot
(optional, not included).
❏
3. Place the canopy on the fuselage in the location shown
on the plan, then temporarily hold it in position with tape or
rubber bands.
❏
4. Use a felt-tip pen to accurately trace the canopy outline
onto the MonoKote film covering. Remove the canopy.
❏
5. Use a sharp #11 blade to carefully cut the covering about
1/32" inside of the line you marked without cutting into the
balsa. Cut the covering 1/16" inside of the seam you just made,
again without cutting into the balsa. Carefully remove the 1/16"
wide strip of covering. Wipe away the ink line with a paper towel
lightly dampened with alcohol.
❏
6. Before you permanently glue the canopy to the fuselage,
securely glue the pilot in place.
❏
7. Reposition the canopy on the fuselage and confirm that it
covers the exposed wood. Glue the canopy to the fuselage
using rubber bands or masking tape to hold it in position until
the glue dries. We recommend a glue specifically formulated for
gluing on canopies such as Pacer “Formula 560” canopy glue.
Formula 560 is like regular white glue (aliphatic resin) in that it
dries clear and cleans up with water but sticks extremely well to
butyrate and dries overnight (to allow for accurate positioning).
❏
8. Install the cowl, then mount the spinner backplate, prop,
prop washer, and prop nut. Install the spinner. Reinstall the
needle valve and exhaust deflector, if necessary.
❏
9. Some modelers prefer to cushion the wing with wing seating
foam tape on the wing saddle of the fuselage. Apply 1/16"
seating tape on the wing saddle of the fuselage if you choose.
Note: This section is VERY important and must NOT be
omitted! A model that is not properly balanced will be
unstable and possibly unflyable.
❏
1. Wrap the battery pack in at least 1/4" of foam rubber, secure
to a piece of leftover ply (we prefer Velcro ® for this task for easy
removal), then temporarily position it on the aft fuse top.
❏
2. Mount the receiver switch in a convenient location that will
not interfere with the servos and pushrods inside the fuselage
and opposite of the engine exhaust.
Balance Your Model
Mount the Canopy & Cowl
We recommend the following control surface throws:
Note: The throws are measured at the widest part of the
elevators, rudder, and ailerons. Adjust the position of the
pushrods at the control/servo horns to control the amount of
throw. You may also use the ATV’s (if your transmitter has them)
but the mechanical linkages should still be set so the ATV’s are
near 100% for maximum servo power and the best servo
resolution (smoothest, most proportional movement).
High Rate Low Rate
ELEVATOR: 9/16" up 5/16" up
9/16" down 5/16" down
RUDDER: 1" left 5/8" left
1" right 5/8" right
AILERONS: 7/16" up 1/4" up
7/16" down 1/4" down
Note: If the radio does not have dual rates, then set the control
surfaces to move
between the high rate and low rate throws.
4-CHANNEL TRANSMITTER
4-CHANNEL TRANSMITTER
4-CHANNEL TRANSMITTER
4-CHANNEL RADIO SET-UP
(STANDARD MODE 2)
TRANSMITTER 4-CHANNEL
ELEVATOR MOVES UP
RIGHT AILERON MOVES UP
LEFT AILERON MOVES DOWN
RUDDER MOVES RIGHT
CARBURETOR WIDE OPEN
Set the Control Throws
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