Carl Goldberg GPMA1926 User Manual

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WARNING

A radio-controlled model is not a toy and is not intended for persons under 16 years old. Keep
this kit out of the reach of younger children, as it contains parts that could be dangerous. A radio­controlled model is capable of causing serious bodily injury and property damage. It is the buyer's
responsibility to assemble this aircraft correctly and to properly install the motor, radio, and all other
equipment. Test and fly the finished model only in the presence and with the assistance of another
experienced R/C flyer. The model must always be operated and flown using great care and common
sense, as well as in accordance with the Safety Code of the Academy of Model Aeronautics (5151
Memorial Drive, Muncie, IN 47302, 1-800-435-9262). We suggest you join the AMA and become prop­erly insured prior to flying this model. Also, consult with the AMA or your local hobby dealer to find an
experienced instructor in your area. Per the Federal Communications Commission, you are required
to use only those radio frequencies specified "for Model Aircraft."

LIMITED WARRANTY

Carl Goldberg Products, Ltd. has inspected and certified the components of this aircraft. The company urges the buyer to perform
his own inspection, prior to assembly, and to immediately request a replacement of any parts he believes to be defective for their
intended use. The company warrants replacement of any such components, provided the buyer requests such replacement with­in a period of 30 days from the date of purchase and provided the defective part is returned, if so requested by the company.

No other warranty, expressed or implied, is made by the company with respect to this kit. The buyer acknowledges and under­stands that it is his responsibility to carefully assemble the finished flying model airplane and to fly it safely. The buyer hereby
assumes full responsibility for the risk and all liability for personal or property damage or injury arising out of the buyer's use of the
components of this kit.

CARL GOLDBERG PRODUCTS, LTD

P.O. Box 818 Oakwood GA 30566 Phone #[phone] Fax # [phone] www.carlgoldbergproducts.com

Monster Pitts

Monster Pitts

© Copyright Carl Goldberg Products,Ltd.2006

Electric

Electric

ARF

ARF

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USING THIS INSTRUCTION MANUAL

Before you begin assembling your Monster Pitts ARF,
take some time to read through this entire instruction book.
It is designed to take you step-by-step through the process
and to give you added information on motor and radio
selection and set-up, balancing your aircraft, and flying
your model. The time you spend will speed the assembly
process and help you avoid problems.

PREPARING FOR ASSEMBLY

You will need a work area of approximately 24 x 48" which has
been covered to protect it from adhesive, as well as cuts and
other damage. Many people cover their work area with a
sheet of dry wall (sheet rock) and/or waxed paper t o pre­vent CAGlue and Epoxy from ruining the work surface.

CONSTRUCTION TIPS

IMPORTANT: ALWAYS READ A FEW STEPS AHEAD.
This will alert you to coming instructions and will help you
plan accordingly.

Using the Parts Identification section, familiarize yourself
with the various items included in your kit box.

Do not hesitate to ask questions. Your local hobby dealer
and area flyers will most likely be happy to help, as they
want you to have a successful flying experience.

You may also receive technical assistance from Carl
Goldberg Products, Ltd. via e-mail (questions@carlgoldberg­products.com) or by telephone [phone].

ADHESIVES & GLUING TECHNIQUES

CA adhesives are specially formulated to firmly glue the
plywood, hardwood, and balsa used in your model and to
withstand the vibration and stresses of high performance
flight. However, there are times, such as when you are
installing the stabilizer and fin on the fuselage and want
more set-up time for careful alignment and positioning,
then you should use epoxy. Occasionally, you also will
want to use thin CA, which "wicks" into the surrounding
areas. Aliphatic resin glue or similar water-based glues can
also be used, but they will add to the assembly time
because they dry so much more slowly than CA glue.
Remember, when ever using any CA, you must be careful
to read instructions thoroughly, as you will have only sec­onds for positioning of parts. Be sure to trial fit parts
together before gluing. Also, never use watery THIN type
CA glue for gluing plywood and hardwood parts. Thin CA's
do not adequately bond these areas.

CAUTION

Some people may experience an allergic reaction when
exposed to fumes from CA glue or epoxy. As with paints,
thinners, and solvents, it is always important to use glues
only where there is adequate ventilation to carry fumes
away. A fan is recommended. Also, special care must be
taken when using CA, as it will bond skin as well as other
surfaces. Before using any CA, carefully read all label pre­cautions. When using CA, protective eye-wear and care in
keeping the glue away from the face is highly recommend­ed. If CA does happen to get into the eye, hold lid open
and flush with water only. Seek immediate medical atten­tion.

COVERING

The Monster Pitts ARF is covered in a premium polyester
film chosen by many of the world's top flyers for its beauty,
toughness, and ease of application and repair. It is not
uncommon for ARF's to develop a few wrinkles in transit. If
this is true of your model, the situation is easily corrected.
Before you begin putting the pieces together, run around
the edge of the seams first then over the surface of each
section with an iron (either specially designed for airplane
use or the more cumbersome household iron). Apply the
heat (set at about 350° F), following along with a soft cloth
and pressing down on the covering as you go around. This
will more firmly set the covering adhesive into the wood
and keep your aircraft covering tight and smooth in the
future. Once you have ironed the seams stay away from
them with the heat or the covering will slide when you try
to shrink the middle. If this happens the wrinkles will not
come out of the covering.

One of the great advantages of polyester film is that it can
be applied over itself without causing gas bubbles. This
allows you to repair your aircraft, as well as to customize it
in a number of ways. If, due to a flight mishap, you get a
hole or similar covering damage, simply trim away the
ragged edges and then apply a patch, following the direc­tions that come with your covering , which is available at
your hobby dealer.

The Monster Pitts covering can be matched
using

Oracover White 870

Oracover Blue 873

Oracover Red 883

Caution:

Before starting, carefully go

over all high stress areas

(Wing bolt mounting blocks,

Firewall,etc.) with an epoxy or

wood glue to confirm all

areas are well glued.

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ITEMS NEEDED TO COMPLETE THIS AIRCRAFT

 1 RADIO GUIDANCE SYSTEM (4 CHANNEL

MINIMUM REQUIRED WITH 4 SERVOS)

 1 6” SERVO “Y” HARNESS
 2 6” SERVO EXTENSION
 1 ULTRA SET CA ACCELERATOR
 1 ULTRA SET 1 OZ. BOTTLE CA MEDIUM

GLUE

 1 ULTRA SET 1/2 OZ. BOTTLE CA THIN

GLUE

 1 ULTRA SET 5 MINUTE EPOXY
 1 1/4” FOAM RUBBER
 1 MOTOR (AXI 2820 USE ON PROTOTYPE)
 1 BATTERY (TW-3300XP-3S 3300 MAH LI-

POLY FROM HOBBY LOBBY USED IN
PROTOTYPE)

 1 PROP (11 X 5.5 APC USED)

 1 SPINNER (1-3/4” GOLDBERG USED)
 1 SPEED CONTROL

TOOLS AND SUPPLIES FOR ASSEMBLY.

 MODELING OR UTILITY KNIFE
 WORK SURFACE (24" X48")
 SMALL STANDARD & PHILLIPS SCREW-

DRIVERS

 MASKING TAPE
 NEEDLE NOSE PLIERS
 24” RULER
 FLEXIBLE STRAIGHT-EDGE
 30-60-90° x 6" TRIANGLE
 SOFT PENCIL
 A FEW STRAIGHT OR "T" PINS
 WIRE CUTTER (DYKES)
 OPTIONAL HEAT GUN/COVERING IRON
 5 FT. LENGTH OF STRING

Warnings about Lithium

Polymer batteries

NEVER charge Lithium Polymer batteries with a

charger designed for NiCd, NiMH, or any
other type of battery chemistry. Use ONLY
the chargers listed under REQUIRES or
equivalent substitutes.

Do not allow Li-Po cells to overheat at any time. Cells

which reach greater than 140° Fahrenheit
(60C) will usually become damaged and
could catch fire.

Do not charge or discharge Li-Po cells on or near

combustible materials including paper, plastic,
carpets, vinyl, leather, wood, inside an R/C
model or full size automobile.

Do not expose Li-Po cells to water or moisture at any

time.

Do not store batteries near an open flame or heater.

Do not assemble Li-Po cells or pre-assembled packs

together with other Li-Po cells or packs.

Do not allow a Li-Po battery to be left unattended dur-

ing charging or discharging.

Always store Li-Po batteries in a secure location

away from children.

Always remove a Li-Po battery if model is involved in

any kind of

crash. Carefully inspect the
battery and connectors for even the
smallest damage.

CAUTION, cells may be hot!

Do not allow the electrolyte to get into eyes or on

skin. Wash affected areas immediately if
they come into contact with electrolyte.

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Wing

The wing for the Monster Pitts comes pre-assem­bled. All that is required to finish the wing is to glue
the aileron hinges in place,install the aileron servos,
control horns and attach the pushrods.

1.  Collect the following parts:

(2) top wing ailerons

(2) two bottom wing ailerons

(12) ca hinges

2.  Prepare the aileron by trial fitting in place and

making sure the hinges go half into the aileron
and half into the aileron. Push the aileron tight
against the trailing edge of the wing so there
is no gap.

3.  When satisfied with the fit, deflect the aileron to

its full throw in one direction and apply a drop
of thin Ultra Set CA glue. Turn the wing over
and deflect the aileron in the opposite direc­tion and apply a drop of glue on each hinge.

4.  Attach a servo extension to the servo.

Depending on the servo you use a 6” will
probably be long enough. Use the string
installed in the wing to pull the wire through
the wing and exit into the center section hole.

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5.  Mount the servo using the hardware that came

with the servo.

7.  Install the control horns into the pre-drilled

holes in the ailerons. Install one horn on the
bottom of the lower wing aileron at the leading
edge.This horn will point forward like a normal
horn. This horn does not get a plate on top

9.  Install another horn on the top wing aileron on

the bottom side at the trailing edge. This horn
will also point to the rear. Install a plate on the
top side. Glue all in place with Ultra Set thin
CA.

10.  Locate the four servo connectors and the two
1/32” x 3” pushrods

8.  Install another horn on the top of the lower wing

aileron at the trailing edge. This horn will point
to the rear. Install a plate on the top side.

6.  Locate 6 of the control horns.

bottom of lower wing

6

10.  Drill a 1/16” in the outer most hole of the four

control horns on the bottom wing and install
one of the servo connectors.

11.  Center your servo with the radio and install the

z-bend into the servo arm. Put the other end
into the servo connector and center the
aileron. Tighten the set screw.

12.

 Repeat for the other aileron.

Caution:

Make sure the nylon nut is pushed all the

way onto the pushrod connector.

Landing Gear

1.  Collect the following items.

(1) Main landing gear
(4) 4-40 x 1/2” bolts
(4)flat washers

1.  Install the gear in the slots on each side of the

fuselage and align the holes. Install the four
4-40 bolts with flat washer into the blind nuts
that are per-install in the fuselage. Be careful
and don’t press to hard trying to get the
screw started or you could push the blind nut
out of the hole. Be sure to use lock-tite on
the bolts.