Dynaflite DYFA3030 User Manual

FLYBP03 for DYFA3030 Printed in USA

READ THROUGH THIS INSTRUCTION MANUAL FIRST. IT CONTAINS
IMPORTANT INSTRUCTIONS AND WARNINGS CONCERNING THE ASSEMBLY
AND USE OF THIS MODEL.

Entire Contents © Copyright 1997

Instruction Manual

• REALISTIC FUN SCALE MODEL

• HUGE, 84” WINGSPAN (IMAA Legal)

• 1/4 SCALE MODEL • BUILDS QUICKLY

WARRANTY

Dynaflite 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 modification. In no
case shall Dynaflite's liability exceed the original cost of the purchased kit. Further, Dynaflite reserves
the right to change or modify this warranty without notice. In that Dynaflite has no control over the
final assembly or material used for final assembly, no liability shall be assumed nor accepted for any
damage resulting from the use by the user of the final user-assembled product. By the act of using
the user-assembled product, the user accepts all resulting liability. If you are not prepared to accept
the liability associated with the use of this product, return this kit immediately in new and unused
condition to the place of purchase.

™

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88

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44

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SS

SS

cc

cc

aa

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ee

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yy

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BB

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aa

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Introduction........................................................2

Precautions.........................................................3

Preparations.......................................................4

Required Items ..................................................4

Optional Items ..................................................4

Suggested Supplies ...........................................4

Building Notes ..................................................5

Types of Wood..................................................5

Metric Conversions............................................5

Die Patterns ...................................................6&7

Build the Tail Group ............................................8

Build the Fin......................................................8

Build the Rudder................................................8

Build the Stabilizer ............................................9

Build the Elevators.............................................9

Build the Wing....................................................9

Join the Wing Halves.......................................14

Build the Ailerons............................................16

Build the Fuselage.............................................16

Final Assembly .................................................20

Finishing ..........................................................24

Set the Control Throws......................................25

Balance the Model............................................26

Preflight ...........................................................26

At Home..........................................................26

At The Flying Site .............................................26

Engine Safety Precautions .................................27

Flight................................................................27

Find a Safe Place to Fly.....................................27

Takeoff................................................Back Cover

Flying .................................................Back Cover

Landing...............................................Back Cover

Congratulations on your choice of this kit for your
next project. The Fly Baby is a Fun Scale™model of
a true classic aircraft. It has the presence that only a
big model can carry off. The full scale Fly Baby was
actually derived from a model aircraft. This kit is a
model of that full scale aircraft.

The Dynaflite Fly Baby was designed to allow the
modeler a wide selection of power plants from a .75
two stroke to a 25 cc gas engine. With an airplane
this large and a power plant selection this broad,
there are a few problems that may come up. If you
use a light .75 two stroke you will need to add
weight to the nose. A .91 4 stroke will balance very
closely. With a gas motor like the US Engines 25cc
you will need to add weight in the tail.

At Dynaflite we take pride in offering kits that are
simple and straightforward to build and provide
value for your modeling dollar. Because of the size
and cost of this model, we assume you have built
several models and have a general working
knowledge of modeling and its terms.

If you HAVE NOT built and flown several kits, do
yourself a favor - back up and get some experience
before beginning this kit.

Please inventory and inspect all par ts carefully
before starting to build! If any par ts are missing,
broken or defective or if you have any questions
about building or flying this model, please call us at
[phone] and we'll be glad to help. If you are
calling for replacement parts, please look up the
part numbers and have them ready when calling.

INTRODUCTIONTABLE OF CONTENTS

2

3

Your Fly Baby is not a toy, but a sophisticated working
model that functions like a full-size airplane. Because
of its performance, if you do not assemble and
operate the Fly Baby correctly, you could possibly
injure yourself or spectators and damage property. To

make your R/C modeling experience totally
enjoyable, we recommend that you get assistance
with assembly and your first flights from an
experienced, knowledgeable modeler. You'll learn

faster and avoid risk to your model before you're
truly ready to solo. Your local hobby shop has
information about flying clubs in your area whose
membership includes qualified instructors.

You can also contact the national Academy of Model
Aeronautics (AMA), which has more than 2,500
chartered clubs across the country. We recommend
you join the AMA which will provide you with
insurance coverage at AMA club sites and events.
AMA Membership is required at chartered club
fields where qualified flight instructors are available.
Contact the AMA at the address or toll-free phone
number below.

Academy of Model Aeronautics

5151 East Memorial Drive

Muncie, IN 47302

[phone]

Fax [phone]

1. You must assemble the plane according to the
instructions. Do not alter or modify the model, as
doing so may result in an unsafe or unflyable model.
In a few cases the instructions may differ slightly
from the photos or plan. In those instances the text
should be taken as correct.

2. You must take time to build straight, true and strong.

3. You must install all R/C and other components so
that the model operates properly on the ground and
in the air.

4. You must test the operation of the model before the
first and each successive flight to insure that all
equipment operates correctly. You must also make
certain that the model has remained structurally sound.

NOTE: We, as the kit manufacturer, provide you
with a quality kit and great instructions, but
ultimately the quality and flyability of your finished
model depends on how you assemble it; therefore,
we cannot in any way guarantee the performance
of your completed model and no representations
are expressed or implied as to the performance or
safety of your completed model.

PRECAUTIONS

PROTECT YOUR MODEL,

YOURSELF & OTHERS...

FOLLOW THIS IMPORTANT

SAFETY PRECAUTION

These are the items “not included“ with your kit; you
will need to purchase them separately. Items in
parentheses (GPMQ4107) are suggested part
numbers recognized by distributors and hobby
shops and are listed for your ordering convenience.
GPM is the Great Planes®brand, TOP is the Top
Flite®brand and HCA is the Hobbico®brand.

❏ 4 channel radio with 6 servos

(5 high torque to be IMAA legal)

❏ Engine - .75 to .90 2-stroke

.91 to 1.20 4-stroke or 25cc gas

❏ Engine mount and mounting hardware
❏ 16 oz. Fuel tank, 2 or 4-stroke (GPMQ4107)
❏ 20 oz. Fuel tank, gas (DUBQ0220)
❏ Gas stopper (DUBQ0675)
❏ Standard fuel tubing, 2 or 4-stroke (GPMQ4131)
❏ Tygon fuel tubing, gas (AERQ2125)
❏ (2) 4-1/2" Main wheels (DUBQ0846)
❏ (1) 1-1/2" Tail wheel (GPMQ4243)
❏ (4) 1/4" Wheel collars (DUBQ1200)
❏ (2) 3/32" Wheel collars (GPMQ4302)
❏ Coverite

™

Fabric covering – Main color one

15’ roll – Trim colors one 6’ roll per color

❏ Paint for fuelproofing and engine cowl
❏ (1) 1/4 Scale pilot (DGAQ2110)
❏ 1/4" Latex Foam Rubber (HCAQ1000)
❏ (2) 12" Servo extension wires (ailerons)
❏ (2) ‘Y’ Connectors (ailerons, elevators)
❏ (2) 24" Servo extension wires (gas only)

❏ Cockpit and Accessory Kit (DYFQ8110)

We recommend Great Planes Pro™CA and Epoxy

❏ 4 oz. Thin CA Adhesive - (GPMR6004)
❏ 4 oz. Medium CA Adhesive (GPMR6010)
❏ 2 oz. Thick CA Adhesive - (GPMR6015)
❏ CA Accelerator - (GPMR6035)
❏ CA Applicator Tips - (HCAR3780)
❏ 6-Minute Epoxy - (GPMR6045)
❏ 30-Minute Epoxy - (GPMR6047)
❏ 4 oz. Aliphatic Resin Glue (GPMR6161)
❏ 4 oz. Milled Fiberglass (GPMR6165)
❏ Microballoon Filler (TOPR1090)
❏ J & Z Products RC/56 Canopy Glue

(JOZR5007)

❏ Great Planes Plan Protector (GPMR6167)

A flat, durable, easy-to-handle sanding tool is a
necessity for building model airplanes. Great Planes
makes a complete range of Easy-Touch™Bar Sanders
and replaceable Easy-Touch adhesive-backed
sandpaper. For future reference, here's a list of
Easy-Touch Bar Sanders and adhesive-backed
sandpaper:

5-1/2" Bar Sander (GPMR6169)

11" Bar Sander (GPMR6170)
22" Bar Sander (GPMR6172)
33" Bar Sander (GPMR6174)
44" Bar Sander (GPMR6176)

Assortment pack of 5-1/2" strips (GPMR6189)
Adhesive-backed 12' roll of:

80-grit (GPMR6180)
150-grit (GPMR6183)
180-grit (GPMR6184)
220-grit (GPMR6185)

Use 320-grit wet-or-dry sandpaper for finish sanding.

SUGGESTED SUPPLIES

OPTIONAL ITEMS

REQUIRED ITEMS

PREPARATIONS

4

5

• When you see the term “cut and fit” in the
instructions, it means you should first position the
part on the assembly without using any glue.
Slightly modify or shape the part as necessary
for the best fit.

• Whenever just “epoxy” is called for, you may
use

either

30-minute epoxy or6-minute epoxy.
When 30-minute epoxy is specified, it is highly
recommended that you use only 30-minute
epoxy because you will need either the working
time or the additional strength.

• During construction you will be using a number of
balsa sticks to frame various assemblies. Ample
material is included but you should study the plans,
then make an effort to cut the longest pieces you
will need first. Label the pieces for later reference
as you cut them. By doing this now, you won’ t have
to splice pieces together later.

• Do not throw away any leftover material until
after you have completed your model. Some
small pieces of leftover balsa or plywood are
used during construction.

• This kit is built with three types of glue.
Cyanoacrylate - CA glues cure almost instantly

and are moderately strong. There are three
common types used: thin, medium and thick.
Thin cures the fastest but will not span gaps
between parts. Medium and thick are used
where parts do not fit perfectly. CA glue does not
bond well to most plywoods and hardwoods. CA
glues are also brittle.

Aliphatic Resin - Resin glues require that parts be
pinned or clamped together while the glue
dries–typically 15 - 30 minutes. Resin glues
are very strong and work well with balsa
and plywoods.

Epoxy - 6-minute epoxy cures the fastest; it sets
within six minutes but is not fully cured for one
hour or more. 30-minute epoxy is the strongest
as it allows the epoxy to soak into the wood
thoroughly. While it sets within 30 minutes, it is
not fully cured for two or more hours.

Throughout the assembly of this model, THIN CA
should be used unless the step calls for another
type of adhesive. If your parts do not fit well,
substitute MEDIUM or THICK CA.

BALSA BASSWOOD PLYWOOD

1" = 25.4mm (conversion factor)

METRIC CONVERSIONS

TYPES OF WOOD

BUILDING NOTES

1/64" = .4mm
1/32" = .8mm
1/16" = 1.6mm
3/32" = 2.4mm

1/8" = 3.2mm
5/32" = 4mm
3/16" = 4.8mm

1/4" = 6.4mm

3/8" = 9.5mm

1/2" = 12.7mm

5/8" = 15.9mm

3/4" = 19mm

1" = 25.4mm
2" = 50.8mm
3" = 76.2mm

6" = 152.4mm
12" = 304.8mm
15" = 381mm
18" = 457.2mm
21" = 533.4mm
24" = 609.6mm
30" = 762mm
36" = 914.4mm

6

DIE-PATTERNS

7

DIE-PATTERNS

❏ 1. Place the fin and rudder plan on your work

surface and cover it with wax paper.

❏ 2. From the 3/8"x 15/16"x 36" balsa stick cut,

fit and glue the fin TE and fin upper bottom piece
(shaded area on plan).

❏ 3. From a 3/8"x 5/8"x 30" balsa stick cut, fit

and glue the fin lower bottom piece (shaded area
on plans).

❏ 4. From a 3/8"x 5/8"x 30" balsa stick cut, fit

and glue the fin LE.

❏ 5. From a 1/8" x 3/8" x 24" balsa stick cut, fit

and glue the fin ribs in place.
NOTE: It is important that the ribs fit the LE and TE

well. It is not important that each rib fit the exact
location shown on the plan.

❏ 6. Use leftover 3/8" x 15/16" balsa to cut and

glue the gusset between the Fin LE and Fin Bottom.

❏ 7. Sand both sides of the fin flat. Radius the LE as

shown on the plan.

❏ 1. Laminate the two 1/8" die-cut rudder TE1

pieces together. Do the same for the TE2 pieces.
Glue the TE1 and TE2 pieces together over the plan.
After they are dry remove them from the plan.

❏ 2. Laminate three 1/8" die-cut rudder base

pieces together.

❏ 3. Pin three 1/16" balsa shims in place over

the plans.

❏ 4. From a 3/8"x 5/8"x 30" balsa stick, cut and

pin the rudder leading edge in place. Glue the
rudder base to the LE.

❏ 5. Making sure to keep the TE against the 1/16"

shims, glue it to the rudder base and the LE.

❏ 6. From the remainder of the 1/8"x 3/8"x 24"

balsa stick, cut, fit and glue the rudder ribs in place.
NOTE: It is important that the ribs fit the LE and TE

well. It is not important that each rib fit the exact
location shown on the plan.

❏ 7. From the 3/8"x 3/8"x 24" balsa stick, fit and

glue the three hinge blocks in place.

❏ 8. Sand this assembly to the airfoil shown in the

cross section on the plan.

BUILD THE RUDDER

BUILD THE FIN

BUILD THE TAIL GROUP

8

❏ 1. Place the stab and elevator plan on your work

surface and cover it with wax paper.

❏2. From the 3/8"x 5/8"x 36" balsa stick, cut and

glue the stab TE and sub TE together. Pin it in place
on the plan.

❏3. From the remainder of the 3/8" x 15/16" balsa

stick used for the fin, make two stab center pieces.
Glue them in place making sure to use two 3/8"
shims so that the fin bottom will fit into the stab center.

❏ 4. From a 3/8"x 5/8"x 30" balsa stick, cut and

glue the stab LE in place.

❏ 5. Using a leftover piece of 3/8"x 15/16" balsa

stick, fit and glue the stab tip gussets in place.

❏ 6. From a 1/8"x 3/8"x 24" balsa stick, cut, fit

and glue the stab ribs in place.
NOTE: It is important that the ribs fit the LE and TE

well. It is not important that each rib fit the exact
location shown on the plan.

❏ 7. Using the remainder of the 3/8"x 3/8" balsa

stick, cut and glue the hinge blocks in place.

❏ 8. Sand both sides of the stab flat. Radius the LE

as shown on the plan.

❏ 1. Laminate two of the 1/8" die-cut balsa elevator

trailing edge pieces together for each elevator.

❏❏2. From a 3/8"x 5/8"x 30" balsa stick, cut the

elevator leading edge and also the root end of the
elevator. Glue these pieces together over the plan.

❏❏3. Holding the laminated TE down on the

1/16" balsa shims, glue it to the TE and root.

❏❏4. From a 1/8"x 3/8"x 24" balsa stick, cut,

fit and glue the elevator ribs in place.
NOTE: It is important that the ribs fit the LE and TE

well. It is not important that each rib fit the exact
location shown on the plan.

❏❏5. From the remainder of the 3/8" x 3/8"

balsa stick, cut and glue the hinge blocks into place.

❏❏6. Sand this assembly to the airfoil shown in

the cross section on the plan.

NOTE: This is a semi symmetrical wing. Make sure
you mark the top of the ribs so that you get them all
correctly positioned.

❏ 1. Remove the ribs from the die sheets. Mark the

top of the ribs with a pen.

BUILD THE WING

BUILD THE ELEVATORSBUILD THE STABILIZER

9