Hangar 9 showtime 4d 90 User manual

Wingspan: ......................................66 in (1676mm)
Length: ........................................68.3 in (1734mm)
Wing Area: ...........................900 sq in (58.1sq dm)
ASSEMBLY MANUAL
ShowTime 4D 90
Weight: .................................... 8–9 lb (3.6–4.1 kg)
Radio: ................................... 4-channel w/6 servos
Recommended Engines: ...............61–1.00 2-stroke
...............91–1.10 4-stroke
Specifications



2
Covering Colors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Contents of Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Additional Required Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Additional Required Tools and Adhesives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Servo Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Before Starting Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Using the Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Section 1 – Hinging the Control Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Section 2 – Aileron Servo Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Section 3 – Joiner Tube Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Section 4 –Elevator Servo Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Section 5 – Landing Gear Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Section 6A – Engine Installation: Saito 1.00. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Section 6B – Engine Installation: Evolution 1.00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Section 7A – Rudder Servo Installation: Pull-pull . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Section 7B – Rudder Servo Installation: Tail Mounted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Section 8 – Tail Wheel Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Section 9 – Radio Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Section 10 – Cowling Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Section 11 – Final Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Flying Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Balancing the Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Control Throws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Preflight at the Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
2005 Official AMA
National Model Aircraft Safety Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
• White HAUN870
• True Red HANU866
• Bright Yellow HANU872
• Pearl Purple HANU847
Table of Contents
Covering Colors

3
Radio Equipment
• 6-channel radio system (minimum)
• 1 standard servo for throttle (JRPS537 recommended
or equivalent)
• 4 hi-torque servos (JRPS9411 recommended
or equivalent)
• 1 hi-torque servo (JRPS8411SA recommended
or equivalent for rudder)
Recommended JR® Systems
• PCM10X
• XP9303
• XP8103
• X-378
• XP6102
• XF631
Recommended Engines
• 4-Stroke: Saito 1.00
• 2-Stroke: Evolution 1.00
Large Parts:
A. Right Wing (HAN2802)
B. Left Wing Panel (HAN2803)
C. Fuselage (HAN2803)
D. Stabilizer Set w/Elevators (HAN2804)
E. Canopy (HAN2806)
F. Cowling (HAN2808)
G. Anodized Wing Tube (HAN2814)
H. Canopy Hatch (HAN2807)
I. Rudder (HAN2805)
J. Stabilizer Tube (HAN2813)
K. SFG Set (HAN2816)
L. Carbon Fiber Landing Gear (HAN2809)
M. Wheel Pant Set (HAN2810)
Small Parts:
1. Fuel Tank
2. Engine Mount
3. Tail Wheel Assembly (HAN2812)
Items Not Shown:
Decal Set (HAN2814)
Pushrod Set (HAN2815)
JR XP6102
JR XP9303
Saito™ 1.00 4-stroke
SAIE100
Evolution 1.00
EVOE1000
Contents of Kit
Additional Required Equipment
AB
E
FC
D
G
H
I
J
K
LM
D

4
Tools
• 4-40 tap
• Adjustable wrench (small)
• Canopy scissors
• Drill (drill press preferred)
• Drill bit: 1/16”, 3/16”, 5/64”, 7/32”, #43, 5/32”
• Drum sander
• Cut-off wheel
• Flat blade screwdriver w/short handle
• Foam: 1/4”
• Hex wrench: 3/32”
• Hobby knife
• Masking tape
• Phillips screwdriver (small)
• Razor saw
• Scissors
• Square
• Syringe
• Tap handle
• Toothpicks
• Velcro straps
Adhesives
• 30-minute epoxy
• Medium CA (cyanoacrylate) glue
• CA remover/debonder
• Pacer Z-42 Threadlock
• Pacer hinge glue (PT-55)
• Formula 560—canopy glue
• Shoo Goo
Other Required Items
• Epoxy brushes
• Felt-tipped pen or pencil
• Measuring device (e.g. ruler, tape measure)
• Mixing sticks for epoxy
• Paper towels
• Petroleum jelly
• Rubbing alcohol
• Sanding bar
• Sandpaper (coarse)
• Covering Iron (HAN101)
• Dental floss or string
• Covering Glove (HAN150)
• Sealing Iron Sock (HAN141)
The servos used for the control surfaces of the ShowTime must have a minimum of 80 ounce inch of servo torque. In the
prototype ShowTime, we used JR9411 servos on the ailerons and elevator, and a JR8411SA servo for the rudder.
JR9411 Ultra Precision Wide Bearing (aileron and elevator)
Torque: 82 oz/in Speed: .15 sec/60°
Weight: 1.36 oz Size: 0.75” x 1.41” x 1.03”
Motor: Coreless Ball Bearing: Dual widespaced
JR8411SA Digital Ultra Torque (rudder)
Torque: 155 oz/in Speed: .18 sec/60°
Weight: 2.00 oz Size: 0.75” x 1.54” x 1.36”
Motor: Coreless Ball Bearing: Dual widespaced
Additional Required Tools and Adhesives
Servo Selection

5
Before beginning the assembly of your ShowTime, remove each part from its bag for inspection. Closely inspect the
fuselage, wing panels, rudder, stabilizer and side force generators for damage. If you find any damaged or missing parts,
contact the place of purchase.
If you find any wrinkles in the covering, use a heat gun or covering iron to remove them. Use caution while working
around areas where the colors overlap to prevent separating the colors.
This manual is divided into sections to help make assembly easier to understand, and to provide breaks between each
major section. Remember to take your time and follow the directions.
Horizon Hobby, Inc. 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 Horizon Hobby’s
liability exceed the original cost of the purchased kit. Further, Horizon Hobby reserves the right to change or modify this
warranty without notice.
In that Horizon Hobby has no control over the final assembly or material used for the final assembly, no liability shall
be assumed nor accepted for any damage resulting from the use of the final assembled product. By the act of using the
assembled product, the user accepts all resulting liability.
Please note that once assembly of the model has been started, you must contact Horizon Hobby, Inc. directly regarding
any warranty question. Please do not contact your local hobby shop regarding warranty issues, even if that is where you
purchased it. This will enable Horizon to better answer your questions and service you in the event that you may need any
assistance.
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.
Horizon Hobby, Inc.
4105 Fieldstone Road
Champaign, Illinois 61822
[phone]
horizonhobby.com
An RC aircraft is not a toy! If misused, it can cause serious bodily harm and damage to property. Fly only in open areas,
preferably at AMA (Academy of Model Aeronautics) approved flying sites, following all instructions included with your
radio and engine.
HAN100 – Heat Gun
HAN150 – Covering Glove
HAN101 – Covering Iron
HAN141 – Sealing Iron
Sock
Before Starting Assembly
Using the Manual
Warranty Information
Warning

6
Required Parts
• Wing w/aileron • Stabilizer w/elevators
• Fuselage • Rudder
• CA hinges (20)
Required Tools and Adhesives
• Thin CA • T-pins
• Drill • Drill bit: 1/16"
   Step 1
Carefully remove the tape holding the aileron to the wing.
Use a 1/16" drill bit to drill into the wing and aileron at the
center of each hinge. This allows the CA to wick farther
into the surfaces for better hinge installation.
   Step 2
Locate five CA hinges and place a T-pin in the center of
the hinge as shown. Slide each of the five hinges into the
aileron so the T-pin is resting against the leading edge
of the aileron. The slot in the hinge aligns with the hole
drilled in Step 1.
   Step 3
Slide the aileron onto the wing until there is only a slight
gap between the aileron and wing panel. Remove the
T-pins and snug the aileron against the wing panel. Slide
the aileron towards the wing tip until the aileron aligns
with the wing tip.
Note: Do not use CA accelerator during the
hinging process. The CA must be allowed to
soak into the hinge to provide the best bond.
Using accelerator will not provide enough time
for this process.
   Step 4
Deflect the aileron and apply thin CA to the hinge. Apply
enough CA to completely saturate the hinge. Use care
not to deflect the aileron so it pulls away from the wing.
When the hinge is glued in place, there should be no
more than a 1/64" hinge gap maintained throughout
the length of the aileron.
Section 1 – Hinging the Control Surfaces

7
   Step 5
Turn the wing panel over, deflect the aileron in the
opposite direction and apply thin CA to the other side of
the hinges as described in the previous step. Make sure
the thin CA penetrates completely into both the aileron
and wing panel.
   Step 6
Use CA remover/debonder and a paper towel to remove
any excess CA accumulated on the wing or aileron
surface. Allow time for the CA to completely cure before
moving to the next step.
   Step 7
Firmly grasp the wing and aileron and gently pull on the
aileron to ensure the hinges are secure and cannot be
pulled apart. Use caution when gripping the wing and
aileron to avoid crushing the structure.
   Step 8
Work the aileron up and down several times to work in the
hinges and check for proper movement.
 Step 9
Repeat Steps 1 through 8 for the remaining aileron.
Section 1 – Hinging the Control Surfaces

8
 Step 10
Glue the elevator hinges in place using the same
techniques used to hinge the ailerons.
 Step 11
Since all that’s left is the rudder, this is a good time
to install the four hinges here as well. Follow Steps 1
through 8 to complete hinging the control surfaces.
Required Parts
• Wing panel (right and left) • 4-40 lock nut (2)
• 2 3/4" aileron linkage (2)
• 8-32 x 2 1/4" control horn screw (2)
• Ball link for servo arm (2)
• Molded swivel link (2)
• Ball link for swivel link (2)
• 4-40 x 1/2" socket head screw (2)
Required Tools and Adhesives
• Phillips screwdriver (small) • Ruler
• Drill • Drill bit: 1/16"
• 6-minute epoxy • Threadlock
• 12" Servo Extension (JRPA098) (2)
• HD 1/2 Servo Arm 4-40: JR (HAN3574) (2)
  Step 1
Install the servo hardware (grommets and eyelets)
included with the servo.
Section 2 – Aileron Servo Installation
Section 1 – Hinging the Control Surfaces

9
  Step 2
Plug a 12" servo extension onto the servo. Either tie
the servo leads together, using a commercially
available connector, or use unwaxed dental floss to
secure the extensions to prevent them from coming
loose during flight.
  Step 3
Tie a weight to a piece of string. A wheel collar works
great in this application. Lower the string into the wing
from the aileron servo opening. Hold the wing with the tip
upwards and let the weight drop out through the wing root
for the servo.
  Step 4
Tie the string to the servo extension and insert the servo
into the wing. Use the string to pull the servo lead through
the wing. Position the servo so the output shaft is towards
the trailing edge of the wing. Use a 1/16" drill bit to drill
the locations for the servo screws. Mount the servos using
the hardware provided with the servos.
  Step 5
Mix a small amount of 6-minute epoxy and lightly coat
the inside of the hole in the aileron and the 8-32 x 2 1/4"
control horn screw. Slide the screw into the hole from the
top of the wing. Wipe away any excess epoxy on the wing
and screw with rubbing alcohol and a paper towel. Allow
the epoxy to fully cure before continuing.
Section 2 – Aileron Servo Installation

10
  Step 6
Screw the molded swivel link onto the 8-32 screw until
the distance from the aileron surface to the top of the
link is 27/32".
  Step 7
Using the 4-40 screw (don’t substitute a standard screw)
and nut included, attach the ball link to the outer hole
in the servo arm from the bottom side as shown. The
sequence is screw, ball link, servo arm, and nut.
Note: Hangar 9® aluminum servo arms
are suggested for ease of installation and
durability. Use HD 1/2 Servo Arm 4-40: JR
(HAN3574) for the aileron servos.
  Step 8
Screw a 4-40 ball link 5 to 6 turns onto each end of a
2 3/4" long aileron linkage. Adjust the linkage length
until the hole in the ball link aligns with the outer hole
in the servo arm when the aileron is neutral and the
servo arm is centered.
  Step 9
Center the servo using the radio system. Attach the servo
horn to the servo using the screw provided with the servo.
  Step 10
Attach the linkage to the servo horn on the aileron.
Adjust the link so the aileron is centered at the same
time as the servo. Use threadlock to secure the screw.
 Step 11
Repeat Steps 1 through 10 for the remaining wing panel.
Section 2 – Aileron Servo Installation

11
Required Parts
• Wing panels • Fuselage
• Wing tube • Stabilizer tube
• 1/4-20 x 2" nylon bolt (2)
• 4-40 x 1/2" socket head screw (2)
Required Tools and Adhesives
• Drill • Drill bit: #43
• Tap handle • 4-40 tap
• Ruler
 Step 1
Remove the four 4-40 x1/2" screws securing the hatch
to the fuselage. Remove the hatch and store it in a
safe place until later.
 Step 2
Locate the wing tube and carefully slide it into one
wing panel. Slide the wing (with tube) into the wing
tube opening in the fuselage. Make sure the wing panel
alignment pins slide into the holes provided in the
fuselage. Be sure the alignment pins are secure in the
wing halves before installing the wings. If they are not,
remove the pin and apply a small amount of thin CA into
the tube socket and reinstall the alignment pin.
 Step 3
Carefully slide the remaining wing panel onto the wing
tube that projects from the fuselage. The fit may be tight;
use caution when inserting the wing panels onto the wing
tube and fuselage.
 Step 4
Secure the wing panels using the 1/4-20 x 2" nylon
wing bolts.
 Step 5
Insert the stabilizer tube into the aft hole in the fuselage.
Measure the distance of the exposed tube and adjust until
both sides are equal.
Section 3 – Joiner Tube Installation

12
 Step 6
Mark the tube on both sides of the fuselage using a
felt-tipped pen.
 Step 7
Remove the tube and install it into one elevator up to
the first line on the tube. Drill through the hole into the
stabilizer. Do not drill through the opposite side of the
stabilizer tube. Tap the hole for a 4-40 bolt. Install a
4-40 x 1/2" bolt to secure the tube in the stabilizer.
 Step 8
Slide the assembly into the fuselage. Slide the
remaining stab half onto the tube and drill and tap
the location for the 4-40 retaining bolt. Install the bolt
to complete the procedure.
Hint: When removing the stabilizer for storage,
remove only one bolt, leaving the tube secured
in the remaining stabilizer. Trying to install the
tube without the aid of an alignment guide can
be frustrating.
Section 3 – Joiner Tube Installation

13
Required Parts
• Fuselage w/ stabilizer • 5" elevator linkage (2)
• 4-40 locknut (2) • 8-32 flange nut (2)
• Molded swivel link (2)
• Ball link for swivel link (2)
• 4-40 tapered standoff (2)
• Ball link for servo arm (2)
• 4-40 x 1/2" socket head screw (2)
• 8-32 x 2 1/4" control horn screw (2)
Required Tools and Adhesives
• Drill • Drill bit: 1/16"
• Dental floss or string • 6-minute epoxy
• Control horn ball ends (2)
• 24" Servo Extensions (JRPA102) (2)
• Hangar 9 3D XL 1/2 Servo Arm 4-40:JR (HAN3578)
Note: Using two standard rotation servos and
a standard Y-harness for the elevators will
result in them moving in opposite directions
instead of the same direction. As such, the
elevator installation will either require the
use of a one reversed rotation servo and one
standard rotation servo or a reversing
Y-harness. It is highly recommended to use a
computer radio or a JR® MatchBox™ to link
the two elevator servos to operate properly.
The elevators require a minimum of 80 ounce inch of
servo torque. In the prototype ShowTime we used JR9411
servos with excellent results. Using servos with less
torque could cause a crash.
  Step 1
Install a 24" servo extension onto an elevator servo. Tie
the servo leads together, use a commercially available
connector, or use unwaxed dental floss to secure the
extensions to prevent them from coming loose during
flight. Install one side only of the two Y-harnesses to two
of the servos, also tying knots to prevent disconnection.
The other servo will be hooked up to the Y-harness when
installed in the airplane. One elevator servo will need to be
a reversed-direction servo.
  Step 2
Install the servo in the fuselage tail section with the output
shaft to the rear as shown in the photo.
  Step 3
Using the screws included with the servos, fasten the
servos in place. You may find it helpful to drill a 1/16"
pilot hole before installing the screws.
  Step 4
Mix a small amount of 6-minute epoxy and lightly
coat the inside of the hole in the elevator and the
8-32 x 2 1/4" control horn screw. Slide the screw into
the hole from the top of the elevator. Wipe away any
excess epoxy on the wing and screw with rubbing alcohol
and a paper towel. Allow the epoxy to fully cure before
proceeding to the next step.
Section 4 –Elevator Servo Installation

14
  Step 5
Screw the molded swivel link onto the 8-32 screw until
the distance from the elevator surface to the top of the
link is 31/32".
  Step 6
Remove the stock servo arms from the elevator servos and
replace them with Hangar 9 3D XL 1/2 Servo Arm 4-40:
JR. The arms need to face down as shown. Be sure to
use a drop of threadlock on the servo arm screw if using
metal-geared servos.
  Step 7
Screw a 4-40 ball link 5 to 6 turns onto a 5" elevator
linkage. Screw the opposite end of the linkage into the
swivel control horn on the elevator. Adjust the linkage
length until the hole in the ball link lines up with the outer
hole in the servo arm when the elevator is neutral and the
servo arm is centered.
  Step 8
Use the included 4-40 screws and nuts to attach the ball
link to the outer hole in the arm. The correct sequence
is 4-40 screw, ball link, servo arm, and 4-40 locknut. Be
sure to use threadlock.
 Step 9
Repeat Steps 1 through 8 for the remaining elevator servo
and linkage.
Section 4 –Elevator Servo Installation

15
Required Parts
• Fuselage • #8 washer (2)
• Main gear axle w/nut (2) • #4 washer (2)
• 2 1/2" wheel (2) • 3/16" wheel collar (4)
• Wheel pant (left and right)
• 8-32 x 3/4" socket head bolt (2)
• 4-40 x 1/2" socket head screw (2)
Required Tools and Adhesives
• Felt-tipped pen • Ruler
• Adjustable wrench (small)
• Hex wrench: 5/32", 9/64"
 Step 1
Install the axles in the landing gear. Secure the axles using
an adjustable wrench and the nuts provided with the axles.
 Step 2
Install the landing gear using two 8-32 x 3/4" socket head
bolts and two #8 washers.
  Step 3
Fit the pants over the axle on the landing gear. Align the
centerline of the wheel pant to the centerline of
the fuselage. Use a felt-tipped pen to transfer the
location of the mounting hole from the landing gear onto
the wheel pant.
Section 5 – Landing Gear Installation

16
  Step 4
Remove the pant and use a 9/64" drill bit to drill the
location marked in the previous step.
  Step 5
Install a 4-40 blind nut into the hole from the inside
of the pant. The nut will be drawn into the plywood later
in this section.
  Step 6
Install the following items onto the axle: 3/16" wheel
collar, wheel, 3/16" wheel collar.
  Step 7
Secure the pant in place using a 4-40 x 1/2" socket head
screw and a #4 washer. Use threadlock on the screw
to prevent it from coming loose in flight.
  Step 8
Center the wheel in the wheel pant and tighten the collars
to prevent the wheel from moving side to side. Use
threadlock on both set screws.
 Step 9
Repeat Steps 3 through 8 for the remaining wheel pant.
Section 5 – Landing Gear Installation

17
Required Parts
• Fuselage • Engine mount (2)
• 8-32 x 1" screw (4) • 8-32 locknut (4)
• #8 washer (12) • Fuel tank assembly
• 8-32 x 1 1/4" screw (4) • 13" tie wrap (2)
• Nylon clevis • 1/4" fuel tubing
• 17" throttle pushrod tube
Required Tools and Adhesives
• Medium CA • Ruler
• Drill • Drill bit: 11/64"
• Square • Hobby knife
• Foam: 1/4" • Felt-tipped pen
• Threadlock
 Step 1
Locate the two engine mount halves. Attach them to the
firewall using four 8-32 x 1" screws and four #8 washers.
Use threadlock on the screw to prevent it from
coming loose in flight.
 Step 2
Place the engine onto the engine mount. Position the
engine so the drive washer is 5 3/4" from the firewall.
 Step 3
Transfer the location of the holes on the engine mounting
lugs onto the engine mount.
 Step 4
Use a drill and 11/64" drill bit to drill the locations for the
engine mounting bolts.
Note: It is best to use a drill press for drilling
the holes in the engine mounts.
Section 6A – Engine Installation: Saito 1.00

18
 Step 5
Attach the engine to the mount using four 8-32 x 1 1/4"
bolts, eight #8 washers and four 8-32 locknuts.
 Step 6
Mark the location for the throttle pushrod onto the
firewall using a felt-tipped pen. Drill the location using
an 11/64" drill bit.
 Step 7
Roughen the end of the pushrod tube using coarse
sandpaper. Slide the tube into the hole, guiding it to
the sides of the fuel tank area. The tube will extend
1/16" forward of the firewall. Use medium CA to glue
the tube into position.
 Step 8
Trim the pushrod tube at the front edge of the servo tray.
Section 6A – Engine Installation: Saito 1.00

19
 Step 9
Slide the clevis retainer onto the clevis, and then thread
the clevis onto the throttle pushrod. Slide the pushrod into
the tube, and attach the clevis to the throttle arm.
 Step 10
Position the tank into the fuselage. Install the fuel tank
brace at the rear of the tank. Use the 13" tie wraps to
secure the fuel tank to the tank floor.
Note: Before installing the fuel tank, look at
the tubes of the tank to determine which is the
vent and which is the clunk line.
 Step 11
Connect two 12" pieces of fuel tubing for pickup and
vent tubes. Attach the green tubing to the pick-up, the
red to the vent.
 Step 12
Make the proper connections to the engine, using the
engine manufacturer’s instructions. If you are using a
4-stoke, make sure to route the crankcase vent to the
outside of the cowling.
Note: Connect the pressure line to the muffler
once the cowl has been trimmed and fitted.
Section 6A – Engine Installation: Saito 1.00

20
Required Parts
• Fuselage • Engine mount (2)
• 8-32 x 1" screw (4) • 8-32 locknut (4)
• 17” throttle pushrod tube • #8 washer (12)
• 8-32 x 1 1/4" screw (4) • 13" tie wrap (2)
• Nylon clevis • 1/4" fuel tubing
• Fuel Tank Assembly
Required Tools and Adhesives
• Medium CA • Drill
• Drill bit: 11/64" • Ruler
• Square • Hobby knife
• Foam: 1/4" • Felt-tipped pen
 Step 1
Locate the two engine mount halves. Attach them to the
firewall using four 8-32 x 1" screws and four #8 washers.
 Step 2
Place the engine onto the engine mount. Position the
engine so the drive washer is 5 3/4" from the firewall.
 Step 3
Transfer the location of the holes on the engine mounting
lugs onto the engine mount.
 Step 4
Use a drill and 11/64" drill bit to drill the locations for the
engine mounting bolts.
Note: It is best to use a drill press for drilling
the holes in the engine mounts.
Section 6B – Engine Installation: Evolution 1.00