E-flite 4-Site F3P 250 ARF User Manual
™
4-Site
Assembly Manual
Specifications
Wingspan: 32 in (823mm)
Length: 37 in (940mm)
Wing Area: 397 sq in (25.5 sq dm)
Weight w/o Battery: 5.0–5.75 oz (142–163 g)
Weight w/Battery: 6.0–6.5 oz (170–184 g)
Designed by: David Payne
Table of Contents
Introduction
Product Registration
Introduction ........................................................... 2
Important Warranty Information .............................. 2
Using the Manual ................................................... 2
Product Registration................................................ 2
Contents of Kit/Parts Layout .................................... 2
Recommended Radio Equipment ............................. 3
Important Information About Motor Selection ........... 3
Outrunner Setup (E-flite) ......................................... 3
Required Tools and Adhesives ................................. 3
Optional Accessories .............................................. 3
Note on Lithium Polymer Batteries ........................... 3
Fuselage Construction ............................................. 4
Wing Installation .................................................... 7
Carbon Bracing Installation ..................................... 9
Landing Gear Installation ...................................... 11
Motor Installation ................................................. 13
Control Horn Installation ....................................... 14
Radio and Linkage Installation .............................. 16
Final Assembly ..................................................... 21
Airbrake Assembly (Optional) ............................... 22
Control Throws..................................................... 23
Center of Gravity ................................................. 23
Preflight ............................................................... 24
Range Test Your Radio .......................................... 24
Safety Do’s and Don’ts for Pilots ............................ 24
Flying Your 4-Site ................................................. 24
Warranty Information ........................................... 25
Instructions for Disposal of WEEE by
Users in the European Union ............................ 26
2008 Official Academy of
Model Aeronautics Safety Code ....................... 26
Thank you for purchasing the E-flite® 4-Site™ F3P.
The 4-Site is an attractive, easy-to-assemble, flat
foam model that offers incredible precision and
aerobatic flight characteristics. Constructed primarily
of 3mm Depron foam, the 4-Site also offers a high
level of prefabrication, including pre-beveled parts,
pre-hinged control surfaces and a highly visible,
pre-printed trim scheme. The lightweight, laser-cut
Depron foam construction, carbon fiber support rods
and carbon fiber motor mount set the standard for
quality, durability and performance. The 4-Site also
includes two different sets of speed brakes for optimal
personalized flying styles. For anyone looking for an
extremely lightweight, indoor foamie that excels in
precision aerobatic flight and is easy to assemble, the
4-Site flies over the competition.
Important Warranty Information
Please read our Warranty and Liability Limitations
section on Page 25 before building this product. 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.
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 its completion. 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.
Register your product online at:
www.e-fliterc.com/register/
Contents of Kit/Parts Layout
EFL1201 Motor Mount/Firewall
EFL1202 Carbon Pushrod Set
EFL1203 Carbon Bracing and
Landing Gear
EFL1204 Wheel Pants
EFL1180 Pushrod Supports (Wood)
EFL1181 Landing Skids, 2.5mm
Remember to take your time and follow the directions.
2 E-flite 4-Site Assembly Manual
Recommended Radio Equipment
You will need a minimum 4-channel transmitter,
receiver, and three servos. You can also choose to
purchase a complete radio system. If you are using an
existing transmitter, just purchase the other required
equipment separately. We recommend the crystalfree, interference-free Spektrum™ DX6i 2.4GHz DSM®
6-channel system. If using your own transmitter, we
recommend the 6.0 Gram Super Sub-Micro Digital
Programmable Servos from Spektrum.
If you own the Spektrum DX6i radio, just add the
AR6300 DSM2
Spektrum 6.0 Gram Super Sub-Micro Digital
Programmable Servos.
Transmitter and Receiver
SPM6600 DX6i 6-Channel DSM2 without
Or Purchase Separately
SPMAR6300F AR6300 DSM2 Nanolite
Or
SPMDSP60 6.0 Gram Super Sub-Micro
SPMAR6300 AR6300 DSM2 Nanolite
™
6-channel receiver and three
Servos, Mode 2
6-Channel Receiver FlightPack
with four DSP60J servos (only
three servos are required for
the 4-Site)
Digital Prog Servo (3)
6-Channel Receiver, Air
Important Information About Motor
Selection
We recommend the E-flite® Park 250 Brushless
Outrunner Motor 2200Kv (EFLM1130) to provide you
with lightweight precision F3P performance.
Outrunner Setup (E-flite)
EFLM1130 Park 250 Brushless Outrunner
Motor, 2200Kv
EFLA1010 10-Amp Pro Brushless ESC
GWSEP8040B 8x4 Direct Drive Propeller
THP3502SJPL2 350mAh 2-Cell 7.4V 20C
Pro Lite V2 Li-Po, JST
Required Tools and Adhesives
Tools & Equipment
Clear tape Felt-tipped pen
T-pin Hobby knife (#11 blade)
Low-tack tape Low-temperature glue gun
Round file Ruler
Sandpaper Side cutters
Soldering iron Square
Flat blade screwdriver, small
Phillips screwdriver: #0, #1
Adhesives
Foam-safe CA and Activator (EFLA208)
Thin CA
Optional Accessories
Note on Lithium Polymer Batteries
Lithium Polymer batteries are significantly
more volatile than alkaline or Ni-Cd/
Ni-MH batteries used in RC applications.
All manufacturer’s instructions and warnings
must be followed closely. Mishandling of
Li-Po batteries can result in fire. Always
follow the manufacturer’s instructions when
disposing of Lithium Polymer batteries.
During the course of building your model we suggest
that you use a soft base for the building surface.
Such things as a foam stand, large piece of bedding
foam or a thick bath towel will work well and help
protect the model from damage during assembly.
The most important part of building your
model is guaranteeing that it is straight when
completed. A flat work surface and square will
be the most important items during this build.
The Spektrum trademark is used with permission
of Bachmann Industries, Inc.
EFLA110 Power Meter
EFLC3005 Celectra™ 1–3 Cell
Li-Po Charger
EFLC505 Intelligent 1- to 5-Cell
Balancing Charger
3E-flite 4-Site Assembly Manual
Fuselage Construction
Landing gear doubler
Work surface
Required Parts
Main fuselage Stabilizer
Depron firewall Left horizontal fuselage
Right horizontal fuselage
Left upper diagonal brace
Right upper diagonal brace
Left lower diagonal brace
Required Tools and Adhesives
Square Foam-safe CA
If you lay the fuselage on the edge of a flat surface
so that the landing gear doubler is hanging
off of the edge and just the top half above that
is on the table it will allow you to keep the
fuselage very straight during the first steps.
1. Locate the left horizontal fuselage and main
fuselage. The left horizontal fuselage will be
printed on top and white on the bottom. Test fit the
horizontal fuselage to the main fuselage. Check
that the horizontal fuselage lines up at the front
with the main fuselage.
2. When gluing the horizontal fuselage to the main
fuselage, do not apply glue toward the tail after
the last tab. This is necessary to properly install the
horizontal stabilizer.
3. Remove the horizontal fuselage from the main
fuselage. Apply a bead of foam-safe CA to the
left horizontal fuselage where it contact the main
fuselage. Do not apply CA to the rear section of the
horizontal fuselage as noted in the previous step.
4 E-flite 4-Site Assembly Manual
4. Position the horizontal fuselage on the main
fuselage, again making sure that they line up
at the front. Use a square at multiple points on
the fuselage from nose to tail to guarantee the
horizontal fuselage is square to the main fuselage.
Check square from both the top and bottom side
of the fuselage. Allow the CA to fully cure before
proceeding.
5. Position the left upper diagonal brace as shown.
Use the alignment point in the photo to properly
position the brace. The brace will just cover the
holes when aligned properly. Also make sure it
is aligned at the front of the fuselage. The angle
of the brace will be 45° to the fuselage sides
and will be equal distance on both the horizontal
and vertical fuselage. Use foam-safe CA to glue
the diagonal brace to the main and horizontal
fuselage. Do not apply CA to the rear section of
the diagonal brace, similar to that of the horizontal
fuselage.
You can temporarily use the foam firewall to
locate and mark the angle of the diagonal
brace at the front of the fuselage.
Make sure that while you are gluing the
diagonal brace to the fuselage you do not put
a lot of pressure on the assembly. You could
create a warp in the fuselage assembly.
6. Use foam-safe CA to glue the left lower diagonal
brace as shown.
Make sure to use a square on the bottom side of
the horizontal fuselage when gluing the diagonal
brace to the vertical and horizontal fuselage.
5E-flite 4-Site Assembly Manual
7. Locate the horizontal stabilizer. Note the coloring
scheme on the top of the stabilizer. Carefully fold
the elevator on the stabilizer as shown so it can be
installed into the fuselage.
8. Slide the folded horizontal stabilizer into
the fuselage. Unfold the elevator and position
the stabilizer, but do not apply any glue to the
stabilizer at this time.
9. Repeat Steps 1 though 5 to install the right
upper diagonal fuselage brace with foam-safe CA.
Again, make sure to work slowly and use a square
to keep the alignment of your fuselage in check.
You will not glue the lower right diagonal brace
until later in the build.
10. Locate the Depron firewall. Note the alignment
points on the firewall and how they relate to
fuselage. The alignment points are located on
the top and left (as viewed from the front of the
fuselage) as up and right thrust are built into your
model. Use foam-safe CA to install the Depron
firewall in the fuselage.
6 E-flite 4-Site Assembly Manual
Wing Installation
Required Parts
Fuselage assembly Top wing
Bottom wing Outer strut (2)
Required Tools and Adhesives
Square Foam-safe CA
1. Locate the bottom wing.
2. Test fit the fuselage into the bottom wing as
shown. Make sure the tabs from the fuselage are
flat when inserted into the bottom wing. If not, you
may induce an airfoil resulting in unwanted flight
characteristics.
3. After confirming the fit between the fuselage
and bottom wing, use foam-safe CA to glue the
bottom wing to the fuselage. Use a square between
the fuselage and bottom wing to keep them in
alignment while the CA fully cures.
4. Locate the two outer struts. There is not a left
or right strut, but you will want to match the trim
scheme from right to left for aesthetics.
If the tail of your airplane is hanging off of the table
when you are mounting the bottom and top wing it will
allow the assembly to lay perfectly flat against the joint.
7E-flite 4-Site Assembly Manual
5. Test fit the outer strut into the bottom wing as
shown. Make sure the tab is flat when inserted into
the bottom wing. If not, you may induce an airfoil
resulting in unwanted flight characteristics.
6. After confirming the fit between the outer strut
and bottom wing, use foam-safe CA to glue the
outer strut to the wing. Use a square between
the outer strut and bottom wing to keep them in
alignment while the CA fully cures.
8. Locate the top wing. The bottom side of the top
wing is white with no trim scheme.
9. Test fit the top wing to the fuselage and outer
struts. The tab on the struts and fuselage will
be flat in the top wing. If not, it may induce an
unwanted airfoil that could result in unwanted flight
characteristics.
10. Remove the top wing and place it upside down
on your flat work surface. Use foam-safe CA to
glue the top wing to the fuselage and outer struts.
Make sure to use a square at both the struts and
fuselage to keep things in alignment while the CA
cures.
7. Repeat Steps 5 and 6 to install the remaining
outer strut. Make sure to match the trim scheme on
the struts on each side or your flying buddies will
laugh at you.
8 E-flite 4-Site Assembly Manual
Carbon Bracing Installation
Required Parts
Airframe assembly
12 3/4 x 1/32-inch (325mm x 1mm) carbon rod,
Main wing bracing (4)
4 1/8 x 1/32-inch (105mm x 1mm) carbon rod,
Outer strut to tip bracing (4)
5 5/16 x 1/32-inch (135mm x 1mm) carbon rod,
Top wing to fuselage bracing (2)
5 3/4 x 1/32-inch (145mm x 1mm) carbon rod,
Horizontal tail to fuselage bracing (2)
Required Tools and Adhesives
Square Foam-safe CA
T-pin
2. With the top wing flat on your work surface,
check that the struts and fuselage are square to the
top and bottom wings. Apply a small amount of
foam-safe CA at the points where the carbon rod
are inserted in the top wing. The rod should be
inserted completely through the wing but should not
protrude past the top of the wing.
When installing the carbon rods, twisting them with
your fingers while inserting them in the hole will help
to smooth the exit and entry of the carbon rod.
1. Use the following images to position the four
pieces of 12 3/4 x 1/32-inch (325mm x 1mm)
carbon rod (two pieces on either side of the
fuselage) that keep the top and bottom wings in
alignment with the fuselage. Do not apply CA until
instructed. The rod that runs from the top of the
center cabane to the lower outer strut should be on
the front of the cross.
3. Make sure to keep the airframe very square
while proceeding. Apply a few drops of foam-safe
CA to the carbon rods where they enter the bottom
wing. Also apply CA to the junction between the
carbon rods where they cross each other. You can
trim off any excess rod from the bottom of the wing
after all four rods have been glued at each joint.
When positioning the fuselage upside down on your
work surface, the fin will need to hang off the edge of
your work surface to keep the top wing perfectly flat.
9E-flite 4-Site Assembly Manual
4. Using a square, install the 4 1/8 x 1/32-inch
Adjust stabilizer parallel to wings
Adjust perpendicular
to fuselage
(105mm x 1mm) carbon rods between the left and
right outer struts and bottom wing as shown. Make
sure to keep the bottom wing flat on your work
surface and not to deflect the outer struts between
the top and bottom wings when installing the
carbon rods.
5. Install the remaining 4 1/8 x 1/32-inch (105mm
x 1mm) carbon rods between the left and right
outer struts and top wing as shown. Make sure to
keep the top wing flat and not to deflect the outer
struts between the top and bottom wings when
installing the carbon rods.
6. Use foam-safe CA to install the two 5 5/16 x
1/32-inch (135mm x 1mm) carbon rods between
the top wing and fuselage as shown. Use care not
to induce any warps in the top wing while installing
the braces.
These two (2) rods affect the wing in many different
ways. Use caution to make sure that the wing stays
flat and is also still perpendicular to the fuselage.
7. Check the alignment between the wings and
stabilizer. Position the stabilizer so it is parallel to
both the top and bottom wings as shown. It should
also be square to the fuselage. Check to make sure
that the wing and stabilizer are also perpendicular
to the fuselage.
10 E-flite 4-Site Assembly Manual
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