E-FLITE 25-Size Float Set User manual

25-Size Float Set
Assembly Manual

Introduction
Thank you for purchasing the E-flite™Fiberglass Floats.
They have been designed for optimum performance
when used with our J-3 Cub (EFL4000), Ultra Stick 25e
(EFL4025), and other upcoming 25-size ARF planes.
The floats have been constructed from high quality
fiberglass, have been painted with fuel-proof paint for
glow applications, and have the struts pre-welded for ease
of installation. The floats are ready to use out of the box
with only minor assembly required by the builder.
We hope you enjoy your float experience as much as
we have.
Tools Required
Phillips screwdriver
File or rotary tool
Hobby knife
Pliers
Drill
Drill bit: 5/64" (2mm)
Hex wrench: 1.5mm, 3/32"
Table of Contents
Introduction................................................................2
Tools Required............................................................2
Adhesives Required.....................................................3
Using the Manual .......................................................3
Replacement Parts.......................................................3
Limited Warranty Period ..............................................4
Limited Warranty & Limits of Liability.............................4
Safety Precautions.......................................................5
Questions, Assistance, and Repairs...............................5
Questions or Assistance...............................................5
Inspection or Repairs...................................................5
Warranty Inspection and Repairs..................................6
Non-Warranty Repairs.................................................6
Float Installation (J-3 Cub)............................................7
Linkage Installation....................................................11
Float Installation (Ultra Stick 25E) ...............................17
Linkage Installation....................................................20
Float Flying ..............................................................26
2006 Official AMA
National Model Aircraft Safety Code................28
Notes ......................................................................30
2

Replacement Parts
EFLA501 Wire Struts
EFLA502 Float A
ELFA503 Water Rudder
EFLA504 Hardware Package
EFLA505 Float B
Note: Both floats are identical in construction.
When reordering parts, Float B (EFLA505) has
the holes drilled on the stern for the rudder
assembly mount bracket. Float B (EFLA502)
does not have the holes pre-drilled.
Adhesives Required
HAN8000 6-Minute Epoxy
Threadlock
Using the Manual
This manual is divided into sections to help make
assembly easier to understand, and to provide breaks
between each major section. In addition, check boxes
have been placed next to each step to keep track of each
step completed. Steps with a single circle () are performed
once, while steps with two circles () indicate that the
step will require repeating, such as for a right or left wing
panel, two servos, etc.
Remember to take your time and follow the directions.
3

Limited Warranty Period
Horizon Hobby, Inc. guarantees this product to be free
from defects in both material and workmanship at the
date of purchase.
Limited Warranty & Limits of Liability
Pursuant to this Limited Warranty, Horizon Hobby, Inc. will,
at its option, (i) repair or (ii) replace, any product determined
by Horizon Hobby, Inc. to be defective. In the event of a
defect, these are your exclusive remedies.
This warranty does not cover cosmetic damage or damage
due to acts of God, accident, misuse, abuse, negligence,
commercial use, or modification of or to any part of the
product. This warranty does not cover damage due to
improper installation, operation, maintenance, or attempted
repair by anyone other than an authorized Horizon Hobby,
Inc. service center. This warranty is limited to the original
purchaser and is not transferable. In no case shall Horizon
Hobby’s liability exceed the original cost of the purchased
product and will not cover consequential, incidental or
collateral damage. Horizon Hobby, Inc. reserves the right to
inspect any and all equipment involved in a warranty claim.
Repair or replacement decisions are at the sole discretion
of Horizon Hobby, Inc. Further, Horizon Hobby reserves the
right to change or modify this warranty without notice.
REPAIR OR REPLACEMENT AS PROVIDED UNDER
THIS WARRANTY IS THE EXCLUSIVE REMEDY OF
THE CONSUMER. HORIZON HOBBY, INC. SHALL
NOT BE LIABLE FOR ANY INCIDENTAL OR
CONSEQUENTIAL DAMAGES.
As Horizon Hobby, Inc. has no control over use, setup,
final assembly, modification or misuse, no liability shall be
assumed nor accepted for any resulting damage or injury.
By the act of use, setup or assembly, the user accepts all
resulting liability.
If you as the purchaser or user are not prepared to accept
the liability associated with the use of this product, you
are advised to return this product immediately in new and
unused condition to the place of purchase.
4

Safety Precautions
This is a sophisticated hobby product and not a toy. It
must be operated with caution and common sense and
requires some basic mechanical ability. Failure to operate
this product in a safe and responsible manner could result
in injury or damage to the product or other property. This
product is not intended for use by children without direct
adult supervision.
The product manual contains instructions for safety,
operation and maintenance. It is essential to read and
follow all the instructions and warnings in the manual,
prior to assembly, setup or use, in order to operate
correctly and avoid damage or injury.
Questions,Assistance, and Repairs
Your local hobby store and/or place of purchase cannot
provide warranty support or repair. Once assembly, setup
or use of the product has been started, you must contact
Horizon Hobby, Inc. directly. This will enable Horizon to
better answer your questions and service you in the event
that you may need any assistance.
Questions or Assistance
For questions or assistance, please direct your email to
[e-mail], or call 877.504.0233
toll free to speak to a service technician.
Inspection or Repairs
If your product needs to be inspected or repaired, please
call for a Return Merchandise Authorization (RMA). Pack
the product securely using a shipping carton. Please note
that original boxes may be included, but are not designed to
withstand the rigors of shipping without additional protection.
Ship via a carrier that provides tracking and insurance
for lost or damaged parcels, as Horizon Hobby, Inc. is not
responsible for merchandise until it arrives and is accepted
at our facility. Include your complete name, address, phone
number where you can be reached during business days,
RMA number, and a brief summary of the problem. Be sure
your name, address, and RMA number are clearly written on
the shipping carton.
5

6
Non-Warranty Repairs
Should your repair not be covered by warranty and the
expense exceeds 50% of the retail purchase cost, you will
be provided with an estimate advising you of your options.
You will be billed for any return freight for non-warranty
repairs. Please advise us of your preferred method of
payment. Horizon Hobby accepts money orders and cashiers
checks, as well as Visa, MasterCard, American Express,
and Discover cards. If you choose to pay by credit card,
please include your credit card number and expiration date.
Any repair left unpaid or unclaimed after 90 days will be
considered abandoned and will be disposed of accordingly.
Electronics and engines requiring inspection or
repair should be shipped to the following address
(freight prepaid):
Horizon Service Center
4105 Fieldstone Road
Champaign, Illinois 61822
All other products requiring inspection or repair should
be shipped to the following address (freight prepaid):
Horizon Product Support
4105 Fieldstone Road
Champaign, Illinois 61822
Warranty Inspection and Repairs
To receive warranty service, you must include your original
sales receipt verifying the proof-of-purchase date. Providing
warranty conditions have been met, your product will be
repaired or replaced free of charge. Repair or replacement
decisions are at the sole discretion of Horizon Hobby.

7
Float Installation (J-3 Cub)
Required Parts
• Fuselage • Landing gear
• Ventral fin mount • Ventral fin
• 3mm setscrew (4) • Hex wrench: 1.5mm
• Nylon bracket (4)
• 5/32" wheel collar (4)
• 3mm x 12mm sheet metal screw (16)
• 2mm x 12mm sheet metal screw (3)
• Nylon strap (2)
Required Tools and Adhesives
• Phillips screwdriver • File or rotary tool
• Threadlock • Hobby knife
• 6-minute epoxy
1. Remove the packing material from the landing
gear. Attach it to the fuselage using the two
nylon straps that were used to hold on the main
gear and the two nylon straps included with the
float kit. Use 2mm x 12mm screws to install the
nylon straps.

8
2. Attach two of the brackets to each float using
eight 3mm x 12mm sheet metal screws. Each
float uses two brackets, so you’ll install four
brackets in all.
3. Use a file or rotary tool to make a flat on the top
of each of the landing gear extensions.

9
4. Attach the floats using the four 5/32" wheel
collars and four 3mm setscrews. Make sure to use
threadlock when tightening the setscrews onto the
flats made in the previous step.
Note: One float has holes drilled in the aft end
for the rudder bracket. This float is mounted on
the same side as the rudder linkage.

10
6. Remove the bottom 1/8" (3mm) of covering from
the ventral fin using a hobby knife.
5. Attach the ventral fin mount using three 2mm x
12mm sheet metal screws.

11
7. Attach the ventral fin to the mount using 6-minute
epoxy. Make sure the fin is in line with the vertical
centerline of the fuselage.
Linkage Installation
Required Parts
• Fuselage w/floats • Nylon bracket
• Steering arm • 5/32" wheel collar
• 3mm setscrew (2) • Pushrod connector (2)
• Tie wrap • Half brass strap
• Full brass strap (3) • Connector backplate (2)
• Rudder shaft assembly
• 3mm x 12mm sheet metal screw (4)
• 29 3/4" (755mm) pushrod cable
• 25 3/4" (655mm) pushrod tube
• 2mm x 10mm sheet metal screw (7)
Required Tools and Adhesives
• Phillips screwdriver • Hobby knife
• Pliers • Threadlock
• Drill • Drill bit: 5/64" (2mm)
• Hex wrench: 1.5mm, 3/32”

2. Place a 5/32" wheel collar in the center of the
nylon bracket. Slide the rudder assembly through
the nylon bracket and the wheel collar. Secure the
steering arm at the top and the wheel collar using
3mm setscrews.
Note: Remember to use threadlock on
both setscrews.
1. Attach a nylon bracket to the rear of the float
using four 3mm x 12mm sheet metal screws.
12

3. Enlarge the middle hole in the steering arm
with a 5/64" (2mm) drill bit. Secure a pushrod
connector on the steering arm using a pushrod
connector backplate.
4. Enlarge the outboard hole in the rudder control
horn using a 5/64" (2mm) drill bit. Secure a
pushrod connector on the rudder horn using a
pushrod connector backplate.
13

5. With the pushrod cable inside the pushrod tube,
attach the tube to the float using a full brass strap
and two 2mm x 10mm sheet metal screws. The
end of the pushrod tube is 1 1/2" (38mm) from
the end of the float.
6. Use two full brass straps and the half brass strap
to attach the pushrod tube to the bottom of the
fuselage. Leave the straps slightly loose so it can
be moved around for the next step.
Note: These straps are secured onto the
crossbraces on the bottom of the fuselage.
14

7. Use a tie wrap to attach the pushrod tube to the
landing gear. Slide the tube as necessary. Once
attached, go back and tighten the screws for the
brass straps.
8. With the rudder centered, secure the pushrod
cable using a 3mm setscrew. Place the steering
arm parallel with the end of the float and
secure the cable at the steering arm end using
a 3mm setscrew.
15

9. Position the water rudder parallel to the rudder
of the aircraft. It may be necessary to loosen the
setscrew at the steering arm to do so.
10. Test the operation of the water rudder with the
aircraft rudder. The water rudder will move left
when the aircraft rudder moves left, and right
when the aircraft rudder moves right.
11. Adjust the water rudder to move up and down
by tightening or loosening the 4-40 socket
head screw on the rudder shaft. The water
rudder should be able to deflect up if it hits an
obstruction in the water.
12. Now that your floats have been installed, you
MUST verify that the Center of Gravity of your
model is still correct. Use the Center of Gravity
provided in the manual included with your
particular aircraft.
16

1. Locate the holes on the fuselage for the rear
landing gear. These are located behind the air
exit on the fuselage. Use a hobby knife to
remove the covering. Attach the landing gear
to the fuselage using three 4-40 x 1/2" socket
head screws.
Float Installation (Ultra Stick 25e)
Required Parts
• Fuselage • Landing gear
• 3mm setscrew (4)
• Nylon bracket (4)
• 4-40 x 1/2" socket head screw (3)
• 5/32" wheel collar (4)
• 3mm x 12mm sheet metal screw (16)
Required Tools and Adhesives
• Phillips screwdriver • File or rotary tool
• Threadlock • Hobby knife
• Hex wrench: 3/32"
Note: The Ultra Stick 25e comes with the
necessary landing gear mounts for the
installation of the floats. You will also find 4
molded 3.5mm spacer blocks in the Ultra Stick
25e kit which will be used when mounting the
float mounts onto the floats. Use these parts in
addition to the float hardware to complete the
installation.
17

2. Remove the wheels and wheel collars from the
main gear.
3. Attach two of the brackets and float mounts to
each float using eight 3mm x 12mm sheet metal
screws. Each float uses two brackets and two float
mounts, so you'll install eight pieces in all.
18

4. Use a file or rotary tool to make a flat on the top
of each of the four axles.
5. Attach the floats using the four 5/32" wheel
collars and four 3mm setscrews. Make sure to use
threadlock when tightening the setscrews onto the
flats made in the previous step.
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Note: One float has holes drilled in the aft end
for the rudder bracket. This float is mounted on
the same side as the rudder linkage.
Linkage Installation
Required Parts
• Fuselage w/floats • Nylon bracket
• Steering arm • 5/32" wheel collar
• 3mm setscrew (4) • Pushrod connector (2)
• Rudder shaft assembly • Tie wrap
• Full brass strap (3) • Connector backplate (2)
• 3mm x 12mm sheet metal screw (4)
• 29 3/4" (755mm) pushrod cable
• 25 3/4" (655mm) pushrod tube
• 2mm x 10mm sheet metal screw (6)
Required Tools and Adhesives
• Phillips screwdriver • Hobby knife
• Pliers • Threadlock
• Drill • Drill bit: 5/64" (2mm)
• Hex wrench: 1.5mm, 3/32”
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