E-flite Fokker DVII 250 ARF User Manual
Fokker DVII 250 Slow Flyer ARF
Assembly Manual
Specifications
Wingspan: 34.0 in (865mm)
Wing Area: 310 sq in (19.4 sq dm)
Length: 26.5 in (672mm)
Weight w/o Battery: 7.20–7.50 oz (204–212 g)
Weight w/Battery: 8.50–9.00 oz (240–255 g)
Table of Contents
Introduction
Using the Manual
Specifications ......................................................... 1
Introduction ........................................................... 2
Important Information Regarding
Warranty Information ........................................ 2
Using the Manual ................................................... 2
Contents of Kit/Parts Layout .................................... 2
Recommended Radio Equipment ............................. 3
Required Tools and Adhesives ................................. 3
Brushless Outrunner Setup ...................................... 3
Optional Accessories .............................................. 3
Note on Lithium Polymer Batteries ........................... 3
Warning ................................................................ 3
Motor Installation - Carbon Tube ............................. 4
Motor Installation - Firewall Mount .......................... 5
Speed Control Installation ....................................... 6
Servo Installation .................................................... 7
Stabilizer and Rudder Installation ............................ 9
Connecting the Linkages ....................................... 11
Cowling Installation .............................................. 13
Scale Accessory Installation .................................. 14
Bottom Wing ....................................................... 14
Cabane Strut Installation ....................................... 14
Top Wing and Outer Strut Installation .................... 15
Landing Gear Installation ...................................... 16
Rigging Installation ............................................... 18
Center of Gravity ................................................. 22
Control Throws..................................................... 22
Preflight ............................................................... 23
Flying Your Fokker DVII Slow Flyer ........................ 23
Range Test Your Radio .......................................... 23
Safety Do’s and Don’ts for Pilots ............................ 24
Daily Flight Checks ............................................... 24
Warranty Information ........................................... 24
Compliance Information for the European Union .... 26
2009 Official Academy of
Model Aeronautics Safety Code ....................... 26
Loved by the pilots who flew it and feared by those
who flew against it, the Fokker DVII is regarded by
many as the greatest fighter of WWI. E-flite brings this
Great War legend to life with this remarkable foamy
slow flyer that comes out of the box loaded with scale
details. Details like molded machine guns, accurately
modeled interplane struts, a dummy Mercedes engine
and an intricately detailed cooling grille, just to name
a few. Even the vibrant trim scheme that comes preprinted on the foam is an authentic reproduction of
the markings on the DVII flown by German ace, Ernst
Udet.
When matched with E-flite’s Park 250 brushless
outrunner motor, the Fokker DVII 250’s featherlight
wing loading and stunning scale appearance make for
a majestic slow flyer experience unlike any other.
Important Information
Regarding Warranty Information
Please read our Warranty and Liability Limitations
section on Page 24 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.
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.
Remember to take your time and follow the directions.
Contents of Kit/Parts Layout
Replacement Parts
EFL1976 Wing Set
EFL1977 Fuselage
EFL1978 Tail Set
EFL1979 Cowling
EFL1980 Wheel Set
EFL1981 Landing Gear
EFL1982 Lower Gear Spreader
EFL1983 Wing Struts
EFL1984 Machine Gun Set
EFL1985 Hardware pack
2 E-flite Fokker DVII 250 Slow Flyer Assembly Manual
Recommended Radio Equipment
Brushless Outrunner Setup
Warning
You will need a minimum 4-channel transmitter,
receiver and two servos. You can 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™ DX5e 2.4GHz DSM®
5-channel system. If using your own transmitter, we
recommend the E-flite® S60 Sub-Micro servos.
If you own a Spektrum radio, just add a DSM2
receiver and two E-flite S60 Sub-Micro servos. We
show the installation of the AR6110 receiver in the
manual.
Complete Radio System
SPM5500 DX5e DSM2 5-Channel system
Or Purchase Separately
SPMAR6110 AR6110 DSM2 6-Channel Park
Flyer Receiver (for DX5e, DX6i,
or DX7)
And
EFLRS60 6.0-gram Sub-Micro
Servo (2)
™
Required Tools and Adhesives
EFLM1130 Park 250 Brushless Outrunner
Motor, 2200Kv
GWSEP7035 7x3.5 Direct Drive Prop
EFLA1010 10-Amp Pro Brushless ESC
EFLB0990 7.4V 800mAh 2-Cell Li-Po,
JST/Balance
Optional Accessories
EFLA110 Power Meter
EFLC3005 Celectra™ 1- to 3-Cell
Li-Po Charger
EFLC505 Intelligent 1- to 5-Cell
Balancing Charger
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.
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.
Keep loose items that can get entangled in the
propeller away from the prop, including loose clothing,
or other objects such as pencils and screwdrivers.
Especially keep your hands away from the propeller.
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.
This is not shown in the assembly photographs to
display the detail of the actual building of the model.
Tools & Equipment
Pencil Square
Pin drill Pliers
Ruler Hobby scissors
Diagonal Cutters Low-tack Tape
Needle Flat blade screwdriver: 1.5mm
Low-temp glue gun
Medium grit sandpaper
Phillips screwdriver: #0, #1
Hobby knife (#11 blade)
Drill bit: 1/16-inch (1.5mm)
Adhesives
Threadlock Thin CA
Medium CA RTV silicone
White glue 30-minute epoxy
Foam-safe CA (EFLA209)
The Spektrum trademark is used with permission
of Bachmann Industries, Inc.
3E-flite Fokker DVII 250 Slow Flyer Assembly Manual
Motor Installation - Carbon Tube
Required Parts
Fuselage assembly
Motor with mounting hardware
Carbon tube, 6mm x 42mm
Required Tools and Adhesives
Medium CA Phillips screwdriver: #1
RTV Silicone Ruler
Medium grit sandpaper
1. Use a #1 Phillips screwdriver to remove the three
screws holding the cowl to the fuselage. Set the
screws and cowl aside.
2. Locate the 6mm x 42mm carbon tube. Follow
the instructions included with the motor to glue
(using RTV silicone) the motor to the motor tube. Be
careful not to get glue inside the motor bearing.
3. Use medium grit sandpaper to roughen the
outside of the carbon tube so the CA used to glue it
in the fuselage has a surface to attach to.
4. Slide the carbon tube into the hole in the
fuselage. There are two holes that will provide
the proper alignment of the motor. Using a ruler,
position the motor so the front edge of the motor is
a minimum of 13/8 inches (35mm) forward of the
firewall as shown.
5. Apply 2–3 drops of medium CA to the joint
between the carbon tube and fuselage. Allow the
CA to fully cure before proceeding.
You can also remove the pushrods from the tubes in
the fuselage at this time to keep them from sliding out
and getting bent. Both pushrods are the same length so
returning them to their proper locations is not an issue.
4 E-flite Fokker DVII 250 Slow Flyer Assembly Manual
Motor Installation - Firewall Mount
Required Parts
Fuselage assembly
Motor with mounting hardware
Required Tools and Adhesives
Phillips screwdriver: #1
Flat blade screwdriver: 1.5mm
Ruler
1. Use a #1 Phillips screwdriver to remove the three
screws holding the cowl to the fuselage. Set the
screws and cowl aside.
2. The motor shaft must be repositioned to accept
the propeller adapter. Follow the instructions
provided with the motor to reposition the motor
shaft. Use care not to damage the motor.
Always use threadlock on metal-to-metal fasteners
to prevent them from vibrating loose.
3. Attach the mount to the motor using the
setscrew provided with the motor. Use a 1.5mm
flat screwdriver to tighten the setscrew.
You can also remove the pushrods from the tubes in
the fuselage at this time to keep them from sliding out
and getting bent. Both pushrods are the same length so
returning them to their proper locations is not an issue.
5E-flite Fokker DVII 250 Slow Flyer Assembly Manual
4. Slide the propeller adapter on the motor and use
a .050-inch hex wrench to tighten the setscrew that
secures the adapter to the motor shaft. Make sure
to position the edge where the propeller will rest at
a minimum of 13/8 inches (35mm) forward of the
firewall as shown.
Speed Control Installation
Required Parts
Fuselage assembly
Speed control
Tie wrap (not included)
Two-sided tape
1. Mount the speed control using two-sided tape to
the front of the fuselage as shown below.
2. Connect the wires from the motor to the
appropriate wires of the speed control. Route the
wires so they will not interfere with the operation of
the motor.
Hooking up the colored wires in respect to
their colors will result in the correct motor
direction if using all E-flite components.
6 E-flite Fokker DVII 250 Slow Flyer Assembly Manual
Servo Installation
Required Parts
Fuselage Servo with hardware (2)
Receiver
Micro pushrod connector (2)
Micro pushrod connector backplate (2)
Required Tools and Adhesives
Pin drill Thin CA
Pliers Pencil
Phillips screwdriver: #0, #1
Drill bit: 1/16-inch (1.5mm)
1. Use a #0 Phillips screwdriver to remove the
servo arms from the rudder and elevator servos.
2. Position the rudder servo in the opening at the
front of the fuselage as shown. Slide the servo as
far back in the opening as possible. Use a pencil to
mark the position for the screws that will be used to
secure the rudder servo.
4. Apply 2–3 drops of thin CA into each of the
holes to harden the surrounding wood. This is done
to strengthen the wood and provide a stronger
surface for the servo mounting screws.
5. Position the rudder servo back in the opening
in the front of the fuselage. Use a #1 Phillips
screwdriver and the screws provided with the servo
to secure the rudder servo. The lead from the servo
will exit the hole in the bottom of the fuselage as
shown.
3. Use a pin drill and 1/16-inch (1.5mm) drill bit
to drill the holes for the two servo mounting screws.
7E-flite Fokker DVII 250 Slow Flyer Assembly Manual
7. Use a pin drill and 1/16-inch (1.5mm) drill bit
to enlarge the outermost hole in the servo arm.
9. Use a micro pushrod connector backplate to
secure the pushrod connector to the servo arm.
Use pliers to fully push the backplate tight on the
connector.
It is best to support the fuselage with the palm of your
hand while installing the servo screws. The plywood
structure is strong enough for the model and flight
loads but could fail if extreme downward pressure is
placed on it during the servo mount screw installation.
6. Repeat Steps 2 through 5 to install the elevator
servo. Note the direction of the output of the
elevator servo.
8. Insert the micro pushrod connector into the servo
arm from the bottom of the horn as shown.
10. Repeat Steps 7 through 9 so two servo arms
have been prepared for your servos.
8 E-flite Fokker DVII 250 Slow Flyer Assembly Manual
11. Use a #0 Phillips screwdriver to install the
servo arm on the rudder servo. The arm will be
parallel to the center line of the servo as shown.
12. Use a #0 Phillips screwdriver to install the
servo arm on the elevator servo. The arm will be
parallel to the center line of the servo as shown.
13. Connect the rudder, elevator and throttle leads
to their appropriate ports of the receiver. Leave the
receiver loose at this time as it will be installed after
the landing gear is installed.
Stabilizer and Rudder Installation
Required Parts
Fuselage Stabilizer/elevator
Fin/rudder Micro control horn (2)
Micro control horn backplate (2)
Required Tools and Adhesives
Foam-safe CA Hobby knife with #11 blade
Square Ruler
Before beginning the installation of the rudder and
stabilizer you will want to flex the hinges of the
rudder to break them in. This will make it easier for
the rudder servo to operate the control surface.
1. Use a hobby knife with a #11 blade to remove
the hinge tape to fully expose the slot for the
elevator control horn. You may also need to
enlarge the plastic support piece slightly for the
control horn to fit. You want this slot to have a snug
fit, not a loose fit.
9E-flite Fokker DVII 250 Slow Flyer Assembly Manual
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