GREAT PLANES PBY Catalina 사용 설명서 - 페이지 16

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11.1V (3-Cell)

3200mAh

Different

voltages

7.4V (2-Cell)

3200mAh

NEVER connect battery packs with different voltages in

parallel. Otherwise, the batteries will try to "equalize" with the

larger one trying to "charge" the smaller one, thus causing

heat and likely a ﬁ re.

11.1V (3-Cell)

3200mAh

Different

capacities

11.1V (3-Cell)

1250mAh

Also, NEVER connect battery packs with different capacities

in parallel.

Set the Control Throws

Use a Great Planes AccuThrow (or a ruler) to accurately

measure and set the control throw of each control surface as

indicated in the chart that follows. If your radio does not have

dual rates, we recommend setting the throws at the low rate

setting. NOTE: The throws are measured at the widest part

of the elevators, rudder and ailerons.

These are the recommended control surface throws:

High Rate

ELEVATOR: 1/2" [13mm] up

1/2" [13mm] down

RUDDER:

3/4" [19mm] left

3/4" [19mm] right

AILERONS: 3/8" [10mm] up

3/8" [10mm] down

IMPORTANT: The PBY Catalina has been extensively

ﬂ own and tested to arrive at the throws at which it ﬂ ies best.

Flying your model at these throws will provide you with the

greatest chance for successful ﬁ rst ﬂ ights. If, after you have

become accustomed to the way the PBY Catalina ﬂ ies, you

would like to change the throws to suit your taste, that is

ﬁ ne. However, too much control throw could make the model

difﬁ cult to control, so remember, "more is not always better."

NO!!!

PARALLEL

adapter

NO!!!

Low Rate

5/16" [8mm] up

5/16" [8mm] down

3/8" [10mm] left

3/8" [10mm] right

1/4" [6mm] up

1/4" [6mm] down

Balance the Model (C.G.)

More than any other factor, the C.G. (balance point)

can have the greatest effect on how a model ﬂ ies, and

may determine whether or not your ﬁ rst ﬂ ight will be

successful. If you value this model and wish to enjoy it for

many ﬂ ights, DO NOT OVERLOOK THIS IMPORTANT

PROCEDURE. A model that is not properly balanced will

be unstable and possibly unﬂ yable.

At this stage the model should be in ready-to-ﬂ y condition

with all of the systems in place.

❏

1. Use a felt-tip pen or 1/8" [3mm]-wide tape to accurately

mark the C.G. on the bottom of the wing near the center pod

on both sides of the fuselage. The C.G. is located 2-1/8"

[54mm] back from the leading edge of the wing.

This is where your model should balance for the ﬁ rst

ﬂ ights. Later, you may wish to experiment by shifting

the C.G. up to 1/8" [3mm] forward or 1/8" [3mm] back

to change the ﬂ ying characteristics. Moving the C.G.

forward may improve the smoothness and stability, but

the model may then require more speed for takeoff and

make it more difﬁ cult to slow for landing. Moving the C.G.

aft makes the model more maneuverable, but could also

cause it to become too difﬁ cult to control. In any case,

start at the recommended balance point and do not at

any time balance the model outside the speciﬁ ed range.

❏

2. With the wing attached to the fuselage and all parts of

the model installed (ready to ﬂ y), place the model on a Great

Planes CG Machine, or lift it at the balance point you marked.

❏

3. If the tail drops, the model is "tail heavy" and the battery

pack and/or receiver must be shifted forward or weight must be

added to the nose to balance. If the nose drops, the model is

"nose heavy" and the battery pack and/or receiver must be shifted

aft or weight must be added to the tail to balance. If possible,

relocate the battery pack and receiver to minimize or eliminate

any additional ballast required. Use Great Planes (GPMQ4485)

"stick on" lead. A good place to add stick-on nose weight is in the

nose of the fuselage. Begin by placing incrementally increasing

amounts of weight on the top of the fuse until the model balances.

Once you have determined the amount of weight required, it

can be permanently attached inside.

2-1/8" [54mm]