Carl Goldberg GPMA1959 User Manual
®
Wingspan: 78 in [1980mm]
Wing Area: 674 sq in [43.5 dm2]
Weight: 27–30 oz. [765–850 g]
WARRANTY
Carl Goldberg Products guarantees this kit to be free from defects in both material and workmanship at the date
of purchase. This warranty does not cover any component parts damaged by use or modifi cation. In no case shall
Carl Goldberg’ s liability exceed the original cost of the purc hased kit. Further, Carl Goldberg reserves the right
to change or modify this warranty without notice.
In that Carl Goldberg has no control over the fi nal assembly or material used for fi nal assembly, no liability shall be
assumed nor accepted for any damage resulting from the use by the user of the fi nal user-assembled product. By
the act of using the user-assembled product, the user accepts all resulting liability.
If the buyer is not prepared to accept the liability associated with the use of this product, the buyer is
advised to return this kit immediately in new and unused condition to the place of purchase.
To make a warranty claim Hobby Services
send the defective part 3002 N. Apollo Dr., Suite 1
or item to Hobby Services Champaign, IL 61822 USA
at this address: (217) 398-8970 Ext. 5
Include a letter stating your name, return shipping address, as much contact information as possible (daytime
telephone number, fax number, e-mail address), a detailed description of the problem and a photocopy of the
purchase receipt. Upon receipt of the package, the problem will be evaluated as quickly as possible.
Wing Loading: 5.8–6.4 oz/sq ft [17.7–19.5 g/dm2]
Length: 41-3/4 in [1060mm]
Radio: 2-channel with standard servos
www.carlgoldbergproducts.com
READ THROUGH THIS MANUAL BEFORE STARTING CONSTRUCTION. IT CONTAINS IMPORTANT INSTRUCTIONS
AND WARNINGS CONCERNING THE ASSEMBLY AND USE OF THIS MODEL.
TABLE OF CONTENTS
ADDITIONAL ITEMS REQUIRED . . . . . . . . . . . . . . . . . . . 2
Radio Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Hardware and Accessories . . . . . . . . . . . . . . . . . . . . . . 2
Adhesives and Building Supplies . . . . . . . . . . . . . . . . . . 2
Optional Supplies and Tools . . . . . . . . . . . . . . . . . . . . . . 2
PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
ASSEMBLE THE WING . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INST ALL THE FIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INST ALL THE ST ABILIZER. . . . . . . . . . . . . . . . . . . . . . . . 5
INSTALL THE RADIO SYSTEM . . . . . . . . . . . . . . . . . . . . 5
FINISH THE SAILPLANE . . . . . . . . . . . . . . . . . . . . . . . . . 8
Canopy Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Apply the Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
GET THE MODEL READY TO FLY . . . . . . . . . . . . . . . . . 11
Check the Control Directions . . . . . . . . . . . . . . . . . . . . 11
Set the Control Throws. . . . . . . . . . . . . . . . . . . . . . . . . 11
Balance the Model (C.G.). . . . . . . . . . . . . . . . . . . . . . . 12
Balance the Model Laterally. . . . . . . . . . . . . . . . . . . . . 13
CHECKING FOR WARPS . . . . . . . . . . . . . . . . . . . . . . . . 13
PREFLIGHT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Identify Your Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Charge the Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Ground Check & Range Check . . . . . . . . . . . . . . . . . . 14
AMA SAFETY CODE. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Radio Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
CHECK LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
FLYING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Mount the Wing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Trim Flights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Your First Hi-Start Launches . . . . . . . . . . . . . . . . . . . . 16
First Flights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Thermal Flying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Facts About Thermals . . . . . . . . . . . . . . . . . . . . . . . . . 16
Thermal Soaring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
POINTERS FOR CONTEST FLYING. . . . . . . . . . . . . . . . 17
Ballasting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
HARDWARE AND ACCESSORIES
Following is additional hardware and accessories required
to fi nish the Sophisticated Lady ARF. Order numbers are
provided in parentheses.
1/4" Foam Rubber (GPMQ1000)
#64 Rubber Bands (HCAQ2020)
ADHESIVES AND BUILDING SUPPLIES
In addition to common household and hobby tools, this is the
“short list” of the most important items required to assemble
the Sophisticated Lady ARF. Great Planes Pro™ CA glue is
recommended.
Thin CA (1/2 oz. [15g] Thin Pro CA, GPMR6001)
Medium CA (1/2 oz. [15g] Medium Pro CA+,
GPMR6007)
6-minute Pro Epoxy (4oz [113.4g] GPMR6042)
30-minute Pro Epoxy (4oz [113.4g] GPMR6043)
Mixing Sticks (GPMR8055)
Epoxy Brushes (GPMR8060)
Epoxy Mixing Cups (GPMR8056)
Paper Towels
Masking Tape
CA applicator tips (HCAR3780)
Threadlocker thread locking cement (GPMR6060)
#11 blades (5-pack, RMXR6930)
#1 Hobby knife (RMXR6900)
#44 or 3/32" [2.4mm] drill bit
Denatured Alcohol
Wax Paper
Needle-nose Pliers
OPTIONAL SUPPLIES AND TOOLS
Here is a list of optional tools mentioned in the manual that
will help you build the Sophisticated Lady ARF.
ADDITIONAL ITEMS REQUIRED
RADIO EQUIPMENT
The Sophisticated Lady ARF requires a two-channel radio
system with standard size servos. The following servos are
recommended. A square receiver battery or a small fl at receiver
battery is required to fi t the narrow fuselage.
(2) Futaba® S-3004 Standard Servo (FUTM0004)
(1) HydriMax™ 1600mAh NiMH fl at receiver battery
(HCAM6308)
Stick–on segmented lead weight (GPMQ4485)
Hobby paints/paint brushes for painting the pilot
CA debonder (GPMR6039)
CG Machine™ (GPMR2400)
RC 56 Canopy Glue
High Start (GPMP8015)
A model airplane covering iron with a protective covering
sock may also be necessary to retighten the covering and
remove any wrinkles that may have formed after the model
was originally covered at the factory. If you don’t already have a
covering iron, the 21st Century® sealing iron (COVR2700) and
the 21st Century iron cover (COVR2702) are recommended.
2
REPLACEMENT PARTS
GPMA4148 Wing
GPMA4149 Fuselage
GPMA4150 Tail Surfaces
GPMA4151 Canopy
GPMA4152 Decals
PREPARATION
1. Lay three or four paper towels over each other and cut
the stack into small squares. The small paper towel squares,
dampened with denatured alcohol, will come in handy for
epoxy cleanup and other general cleanup during assembly.
ASSEMBLE THE WING
1. Using 220-grit sandpaper, remove any excess glue from
the sides, top and bottom of the aluminum and plywood wing
joiner. Clean the wing joiner with denatured alcohol and a
paper towel.
2. Remove the masking tape holding all the control surfaces
to their main parts. If necessary, clean off any residual tape
glue with a couple of your paper towel squares dampened
with naptha (lighter fl uid).
3. Using a sealing iron, remove any wrinkles in the covering
before assembly.
2. Check the fi t of the wing joiner in the wing panels. Remove
any excess material from the joiner to allow the panels to fi t
together. Gather everything required for gluing the wing joiner
and wing together, including 30-minute epoxy, mixing sticks,
epoxy brush, 12" [304mm] long dowel or wire, denatured
alcohol and paper towels. Mix up 1/2 oz. [14.8cc] of 30-minute
epoxy. Working quickly, pour a generous amount into the
joiner pocket of one wing half. Use your wire or dowel to
thoroughly distribute the epoxy, coating all surfaces inside
the joiner pocket. Coat the root rib and one half of the wing
joiner that goes into the wing. Insert the joiner in the wing.
Coat the joiner pocket in the other wing half and the other
end of the wing joiner. Join the wing halves together. Then,
stand the wing on end with one of the wing tips resting on
the fl oor. Use a piece of R/C foam or something similar to
cushion and stabilize the wing so it won’t slide around. Hold
the two wing halves together with masking tape. Wipe off any
excess epoxy with a paper towel dampened with denatured
alcohol. After the epoxy has hardened, apply the included
white tape around the joint.
3
INSTALL THE FIN
Drill a 3/32" Hole
1/2" Deep, in the Center
of the Hinge Slot
Temporary Pin
to Keep Hinge
Centered
1. Use a felt tip pen to draw a centerline on the top aft end
of the fuselage. Draw a line 3/32" [2.4mm] on both sides of
the centerline. Position the fi n on the fuselage and mark on
the top of the fuselage, all the way around the fi n.
4. Use 6-minute epoxy to glue the fi n to the top of the
fuselage. Wipe off the excess epoxy with a paper towel
dampened with rubbing alcohol. Use masking tape to hold
the fi n in position, aligned with the centerline of the fuselage
and parallel to the sides.
2. Using a hobby knife with a fresh blade, cut and remove
the covering only between the two outside lines. DO NOT
cut the wood under the covering as this will weaken the
structure. Also, insert the fi n in the fuselage and mark the
tail post where it exits the fuselage. Trim the covering from
the tail post and alignment tab.
3. Insert the elevator control cable into the nylon outer
control tube in the fuselage and the fi n. Apply petroleum jelly
to the cable to insure epoxy doesn't adhere to it. Position
the fi n on the fuselage and move the cable to check that it
moves freely.
5. Drill a 3/32" [2.4mm] hole, 1/2" [13mm] deep, in the
center of the fi n and rudder hinge slots. If you use a Dremel®
Rotary Tool for this task, it will result in a cleaner hole than if
you use a slower speed drill. Drilling the hole will twist some
of the wood fi bers into the slot, making it diffi cult to insert the
hinge. Insert a hobby knife blade in the slot, working it back
and forth a few times to clean out the slot.
6. To keep the hinges centered, insert a pin in the center
of the hinges.
4
7. Insert three hinges in the rudder and attach the rudder to
Assemble, then Apply 6 Drops
of Thin CA to the Center of
the Hinge, on Both Sides
the fi n. Remove the pins, making sure there is approximately
a 1/64" [0.4mm] gap between the rudder and fi n.
8. Defl ect the rudder 1-1/2" [38mm] in one direction and
apply six drops of thin CA to the center of the hinges. Defl ect
the rudder in the other direction and again apply six drops
of thin CA to the center of the hinges. Use a paper towel to
absorb excess CA from the hinge gap before it hardens. Do
not use CA accelerator. Allow the CA to harden slowly.
3. Position the two stabilizer supports under the stabilizer
against the fi n. Mark the outline of the supports on the fi n
and stabilizer. Use a sharp hobby knife to trim and remove
the covering 1/16" [1.5mm] inside the outline.
4. Use 6-minute epoxy to glue the stabilizer supports to
the fi n and stabilizer.
INSTALL THE STABILIZER
1. Draw a centerline on the bottom of the stabilizer. Draw
a line 3/32" [2.4mm] on each side of the centerline. Use a
hobby knife to cut and remove the covering only between the
two outside lines. DO NOT cut the wood under the covering
as this will weaken the stabilizer, causing it to fail.
5. Install the elevator using the same hinging method used
on the rudder.
2. Use 6-minute epoxy to glue the stabilizer to the top of the
fi n. Use a square to check that the stabilizer is perpendicular
to the fi n.
5
INSTALL THE RADIO SYSTEM
Hinge Line Hinge Line
CORRECT INCORRECT
1. Separate the back plate from one of the nylon control
horns. Thread a nylon clevis 14 turns onto the 2-56 metal
pushrod. Slide a silicone clevis retainer over the end of the
clevis. Attach the clevis in the third hole from the bottom of
the control horn.
3. Use a #44 or 3/32" [2.4mm] drill bit to enlarge the outer
hole in the second nylon control horn.
2. Use a sharp hobby knife to remove the covering from
the end of the rudder guide tube. Insert the pushrod into the
rudder pushrod guide tube. Position the control horn on the
rudder so that the four holes in the control horn are aligned
with the hinge line. Drill two 3/32" [2.4mm] holes through the
rudder using the control horn as a guide. Remove the control
horn and harden the holes by applying two or three drops of
thin CA in each hole. After the CA has cured, attach the control
horn to the rudder using two 2-56 x 3/8" [9.5mm] screws and
the control horn back plate.
4. Insert the quick connector through the previously drilled
hole in the control horn. Install a 2mm washer on the quick
connector. Put a drop of threadlocker on the threads and
secure the quick connector with a 2mm thumb nut. Tighten
the nut and then slowly back it off until the quick connector
rotates freely. The threadlocker will prevent the nut from
coming loose.
5. Slide the elevator cable through the hole in the quick
connector and position the elevator control horn so that the
four holes are aligned with the elevator hinge line. Use a felt
tipped pen to mark the location of the holes.
6
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