Stevens Aero Model Fokker D.VII Manual

Wing Span: 16.5 inches | Wing Area: 76 square inches | Average Flying Weight: 1.8 ounces
Build Instructions - Version 1.12 (revised 10.30.2014)
Build Instructions
Fokker D.VII UM - Build Instructions © 2014 Stevens AeroModel, all rights reserved.!Page 1

WARRANTY
Stevens AeroModel 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 Stevens AeroModel’s liability exceed the original cost of the purchased kit. Further,
Stevens AeroModel reserves the right to change or modify this warranty without notice.
LIABILITY RELEASE
In that Stevens AeroModel 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 use by the user. By the act of
using the user-assembled product, the user accepts all resulting liability.
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.
THIS PRODUCT IS NOT INTENDED FOR CHILDREN 12 YEARS OF AGE OR YOUNGER.
WARNING: This product may contain chemicals known to the state of California to cause cancer
and/or birth defects or other reproductive harm.
PRODUCT SUPPORT
This product has been engineered to function properly and perform as advertised, with the suggested
power system and supporting electronics as outlined within this product manual. Product support
cannot be provided, nor can Stevens AeroModel assist in determining the suitability or use of
electronics, hardware, or power systems not explicitly recommended by Stevens AeroModel.
For product assembly support, replacement parts, hardware, and electronics to complete this model,
please contact Stevens AeroModel at www.stevensaero.com.
Stevens AeroModel
26405 Judge Orr Rd., Colorado Springs, CO 80808 USA
719-387-4187 www.stevensaero.com
Build Instructions
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Fokker D.VII - Kit Inventory
☐Laser-cut wood, 10 sheets (See Sheet Wood Inventory, page 5)
☐Illustrated Build Instructions
☐Detail Set, 2 sheets, 11 in. x 17 in.
☐Profile pilot and radiator decal
Taped to back of wood brick:
☐1 Landing gear, wire, .032 in. x 12 in.
☐2 Push rods, wire, .015 in. x 12 in.
Hardware Bag:
☐1 Heat shrink tube, 1 1/2 in. x 1/16 in.
☐1 Delrin receiver clip
☐1 Pair Du-Bro 1 1/2 in. Micro Lite Wheels (DUB150ML)
Fokker D.VII - Background
The Fokker D.VII was designed by Fokker’s prolific designer Reinhold Platz. Germany produced around
3,300 examples of the D.VII in the summer and autumn of 1918. The D.VII quickly proved to be a very
formidable aircraft. In fact the armistice ending the war in 1918 specifically required that Germany
surrender all it’s D.VII aircraft to the Allies at the conclusion of hostilities.
The D.VII entered service in early May 1918. Allied fighter pilots underestimated the new German fighter
because of its squarish and ungainly appearance, but quickly revised their view as the D.VII began to
mount up victories.
Flown by German aces such as Erich Lowenhart, Ernest Udet, and Herman Goring, among others, the
Fokker D.VII earned a reputation as a top fighter aircraft. It was said that the airplane could make a poor
pilot good, and a good pilot an ace.
After the war the D.VII saw service with a number of countries including Belgium, Denmark, Poland, the
Netherlands, Finland, the Soviet Union, and the United States as well as many others. The Fokker D.VII
was operational with the Swiss Air Force into the early 1930’s.
In honor of the 100th anniversary of the First World War, we decided to release a micro-model of this
iconic aircraft. The perfect stablemate to our popular StevensAero Model SE5a (SAK-SE5AUM). The
Fokker D.VII’s docile flight manners and agile performance are sure to bring excitement to morning
“dawn patrols”, or as a worthy opponent to the SE5a,as you relive the aerial dogfights of the Great War
in your local gym, or your favorite flying site.
Build Instructions
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Suggested Items to Complete this Model
Many of the suggested items listed below are available at your local hobby shop. For your convenience,
Stevens AeroModel stocks all the power system components and most of the building supplies required
to complete this kit. If you have difficulties sourcing any of these items locally, please visit our website,
stevensaero.com to purchase the items necessary to complete your model.
Required Electronics
☐RC transmitter with at least 3 channels
☐Receiver/ESC/Servo brick (PKZ3352 or SPMAR6410)*
☐Motor/Gearbox (PKZ3624)
☐Propeller, 130mm x 70mm (EFL9051)
☐LiPo battery, 120 - 160 mAh 3.7V
*SPMAR6410 may be used with computer radio.
Covering Film Requirements
While any high-quality covering film may be used to finish this model, superior results will be achieved by
using genuine AeroLITE brand covering film, available exclusively from Stevens AeroModel. The lower
working temperature and light weight of AeroLITE are especially desirable for this type of model.
AeroLITE is one-third the weight of typical model covering films, and will present a significant weight
savings when applied to this model.
☐1 - PatchPakTM AeroLITE Base Color
☐1 - PatchPakTM AeroLITE Trim Color
Sealing Bare Wood
While not required, it is suggested that a high-quality clear lacquer be used to protect and seal any
unfinished wood. One single light coat of clear lacquer should be sufficient to protect the model from
moisture, without adding significantly to the model’s final flying weight.
Many parts of this model may be colored using a lacquer-based spray paint. Listed below are some of
the products we have used on our models. Please feel free to use whatever products you prefer.
☐DEFT clear lacquer-based sealant (available at most hardware stores)
☐Design Master Color Tool, lacquer-based spray paint (available at most arts and crafts stores)
Build Instructions
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Required Building Supplies and Tools
☐CA glue, medium, 1/4 oz (PAAPT04)
☐CA glue, thin, 1/4 oz (PAAPT10)
☐CA glue applicator tips (PAAPT21)
☐CA glue accelerator (PAAPT15)
☐Hobby knife with supply of #11 blades
☐Sanding block with 120 and 240 grit paper
Building Supplies and Tools
☐Covering iron and heat gun
☐Needle nose pliers, small
☐Clear tape, 1/2 in. (DUB916)
☐Velcro for mounting battery (PKZ1039)
☐Masking tape (low-tack blue painters’ tape)
☐AeroLITETM covering film
Optional Building Supplies and Tools
☐Balsa filler (HCAR3401)
☐Modeling clay (ballast)
☐CA glue de-bonder (PAAPT16)
☐Required Building Supplies
☐
☐Clear lacquer-based sealant (DEFT)
☐Lacquer-based spray paint (Design
Master®)

Sheet Wood Inventory (1 of 1)
Laser cut sheet wood is available from stevensaero.com for a nominal per/sheet charge. When ordering
include the sheet identification given below (example: D-VII_UM-01/10) and quantity required. Please
allow 3-5 business days to process replacement sheet order.
Build Instructions
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Builder’s Notes
Build Instructions
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General Assembly Instructions
Thank you for purchasing the Fokker D.VII from Stevens AeroModel.
This model has been developed and manufactured using state-of-the-art CAD/CAM systems. Our kits
feature a unique interlocking construction process, that when compared to traditional building methods,
saves countless hours of measuring, cutting, sanding, and fitting. We are certain that you’ll find our kit to
offer a truly exceptional build experience.
As this kit is recommended for the novice model builder and pilot, we invite beginners who have
purchased this kit to seek the help of an experienced builder and pilot. If at any time during the assembly
of this kit, should you run across a term or technique that is foreign to you, please contact our staff with
your questions.
IMPORTANT!
Please READ and RE-READ these build instructions along with any other documentation included,
before starting the build and/or contacting our staff for builder support.
Pre-Sanding
DO NOT SKIP THIS STEP. Before removing any parts from the laser-cut sheet wood, use a sanding
block loaded with 120 - 240 grit sandpaper and lightly sand the back side of each wood sheet. This step
removes any residue produced as a result of the laser cutting process. We have found that most stock
wood sizes run several thousandths of an inch oversized. This step also slightly reduces the thickness of
each sheet of wood. Leave all parts in the sheet wood until required for assembly.
Protecting Your Work Surface
Use the poly tube that this kit was shipped in as a nonstick barrier between your work surface and the
product assembly.
Bonding the Assembly
This product’s tabs and notches interlock like a 3D puzzle. We strongly suggest that when fitting parts,
dry fit (use no glue) the parts together first. It is advised to work 1 - 2 steps ahead in the instructions,
using this dry-fit technique. This allows the opportunity to inspect the fit and location of assembled
components, and shows the benefits of our construction technique. As each successive part is added, it
contributes to pulling the entire assembly square. Once you arrive at the end of a major assembly
sequence, square the work on a flat work surface and bond the dry fit joints with glue. Using the dry-fit
process, you will be able to recover from a minor build mistake and will ultimately end up with a square
and true assembly.
Unless otherwise noted in the instructions, we find it easier to “tack glue” parts (temporarily bonding parts
in assemblies, using a small dot of glue). When using medium CA glue, apply with a fine-tip CA glue
applicator. Never bond painted or covered assemblies with thin CA, as it can destroy the finish of a
beautifully prepared model.
Never Force the Fit!
This is a precision laser-cut kit. Our lasers cut to within 5 thousandths of an inch in accuracy. Yet the
wood stock supplied to us by the mill may vary in thickness by up to 20 thousandths of an inch. This
variance in the wood stock can cause some tabs and notches to fit very tightly. With this in mind,
consider lightly sanding or lightly pinching a tight-fitting tab, rather than forcing the parts together.
You will break fewer parts in assembly, and end up with a square and true airframe.
Manual Updates
Please check our website for updates to these instructions before starting the build. To obtain downloads
and updates to this model aircraft kit, please visit the product page at stevensaero.com.
Build Instructions
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Fuselage
Fuselage parts are designated with the letter “F” followed by a number. Parts have been numbered so
that the fuselage assembly follows a sequential order: F1 to F31.
Note: When initially bonding parts, use a single, small drop of medium CA glue applied sparingly with a
CA glue applicator tip to “tack glue” the part in place. Should you commit an error in assembly, it will be
easier to recover from the mistake and remove or correct the part in error, if you do not soak the assembly
with glue after each step! This method of assembly will allow our interlocking design to do its job.
As each successive part is installed within the fuselage, it will help pull the entire structure square and
true. When a major assembly is completed, revisit all joints and bond completely. Do not use excessive
amounts of glue, as this only adds weight to the model.
1. Central Fuselage Crutch: Lay F1 (sheet 02/10, 1/20 in. balsa) on the workbench with the
side marked “Bottom” facing up. Fit ply parts F2 and F3 (sheet 10/10, 1/32 in. ply) to the
receiver clip in the kit to create the receiver tray. Fit the receiver tray to F1, oriented so that
the long arm of the receiver clip points toward the front of F1. Bond with CA.
2. Fit former F4 (sheet 02/10, 1/20 in. balsa) to the rear of F1. Orient F4 so that the receiver
tray is on the bottom of F1. Do not bond.
3. Fit former F5 (sheet 02/10, 1/20 in. balsa) to the slots on top of F1, immediately above the
receiver tray. Do not bond.
4. Assemble the right fuselage side F6 from parts F6a and F6b (sheet 02/10, 1/20 in. balsa).
Bond with CA.
5. Fit the assembled fuselage side F6, to the right side of the central crutch assembly.
6. Assemble the motor mount from ply parts F7a and two F7b’s (sheet 10/10, 1/32 in. ply).
Bond with CA.
7. Fit the motor mount F7 to the slots in the fuselage side F6, immediately forward of F1. Do
not bond F7 at this time. It must remain flexible, to install the next part.
8. Landing Gear Pocket: Fit ply part F8 (sheet 10/10, 1/32 in. ply) to the slots in the motor
mount F7, and to the corresponding slot in the fuselage side. The slot in the fuselage side
is oversized, and F8 will occupy the front portion of the slot. Do not bond.
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Build Instructions
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Step 1
Step 2
Step 3
Step 4 Step 8
Step 7
Step 6
Step 5
F1
“Bottom”
Bottom View
Front
F1
Bottom
F2 F3
F4
Top
F4
F5
F6a
F6b
F6
F1
F4
F5
F7a
“TOP”
F7b
F7b
F7
F1
F6
F8
F7
Bottom View
Bottom View

Fuselage (continued)
9. Fit ply part F9 (sheet 10/10, 1/32 in. ply) into the same slot in the fuselage side that is
occupied by F8. Do not bond.
10. Fit ply part F10 (sheet 10/10, 1/32 in. ply) into the same slot in the fuselage side that is
occupied by F8 and F9. Do not bond.
11. Assemble the left fuselage side F11 from parts F11a and F11b (sheet 01/10, 1/20 in. balsa).
Bond with CA.
12. Fit F11 to the left side of the fuselage assembly. Make sure that all tabs in the assembly are
fully seated in their corresponding slots, and that there are no gaps between parts. Square
the fuselage on the workbench, and bond all parts together with CA.
13. Nose Section: Fit spine F12 (sheet 01/10, 1/20 in. balsa) to the front of former F5, and
“tack glue” in place.
14. Fit ply former F13 (sheet 10/10, 1/32 in. ply) to the tabs at the front of F7 and F12. Bond
with CA. Once F13 is installed, go back and “final bond” F12 to F5.
15. Fit part F14 (sheet 08/10, 1/8 in. balsa) to the lower set of slots at the top of F13.
16. Fit part F15 (sheet 08/10, 1/8 in. balsa) to the next set of slots in F13, immediately above
F14.
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Build Instructions
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Step 9
Step 10
Step 11
Step 12 Step 16
Step 15
Step 14
Step 13
F9
Rear View
F8
Rear View
F10
F8
F11a
F11b
F11
F12 F5
F13
F14
F15
F6
F6
F13
F13
F14

Fuselage (continued)
17. Fit part F16 (sheet 08/10, 1/8 in. balsa) to the set of slots at the top of F13, immediately
above F15, with the etched side facing up.
18. Align part F17 on top of F16, within the etched lines on F16, and against F13. Bond all four
nose parts together and to F13 with CA.
19. Turn the fuselage upside down on the workbench. Position part F18 (sheet 08/10, 1/8 in.
balsa) in front of F13, and against F14, with the etched side facing forward. Ensure that the
slots on each side of the opening in F18 are aligned with the slots in F13. F18 is slightly
wider than F13. Ensure that F18 extends an equal distance (approximately 1/32 in.)
beyond each side of F13. Bond F18 to F13 and F14 with CA.
20. Align part F19 (sheet 08/10, 1/8 in. balsa) between the etched lines on F18, with the etched
side of F19 facing forward. Ensure that the notches on each side of the opening in F19 are
aligned with those of F18. Bond F19 to F18 with CA.
21. Align part F20 (sheet 08/10, 1/8 in. balsa) between the etched lines on F19. Ensure that
the notches on each side of the opening in F20 are aligned with those of F19. Bond F20 to
F19 with CA.
22. Fit F21 (sheet 09/10, 3/16 in. balsa) to the bottom of parts F18, F19, and F20, with the tabs
at the rear of F21 fitting into the corresponding slots on the landing gear pocket F8.
23. Apply a piece of Hook and Loop Tape (PKZ 1039 available from stevensaero.com) to the
area indicated on F22.
Pro Builder Tip: We like to keep all our batteries inter-changeable from model to model.
With that in mind we always attach the the “Hook” portion of Hook and Loop Tape to the
model and the “Loop” portion to our batteries.
24. Fit F22 (sheet 09/10, 3/16 in. balsa) against F21, with the tabs on F22 resting in the slots
in F8. Note: Ensure that the Hook and Loop Tape is facing the top of the fuselage.
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Build Instructions
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Step 17
Step 18
Step 19
Step 20 Step 24
Step 23
Step 22
Step 21
F16
Bottom View
Bottom View
Bottom View
F17
F18
Slots
F19
F20
F21
Bottom View
Bottom View
F22
Bottom View
F22
F13
F15
F14
F13
F16

Fuselage (continued)
25. Fit F23 (sheet 09/10, 3/16 in. balsa) against F22, with the tabs on F23 resting in the slots
in F8.
.
26. Fit F24 (sheet 08/10, 1/8 in. balsa) against F23, with the tabs on F24 resting in the slots
in F8. Wick CA around the edges of parts F21 through F24 to bond.
27. Rear Fuselage: Fit former F25 (sheet 02/10, 1/20 in. balsa) to the slots in parts F6b and
F11b in the fuselage sides. Orient F25 so that the end etched “Top” corresponds with the
tops of the other formers. “Tack glue” F25 to the fuselage sides with small drops of medium
CA.
28. Fit former F26 (sheet 01/10, 1/20 in. balsa) to the slots at the rear of the fuselage sides,
oriented so that the notch at the top of F26 corresponds with the tops of the other formers.
“Tack glue” with medium CA.
29. Bring the rear of the fuselage sides together, align carefully, and “tack glue” with CA.
30. Fit and bond crosspiece F27 (sheet 01/10, 1/20 in. balsa) to the notches at the top of the
fuselage sides, in front of former F26.
31. Assemble the fuselage bottom from parts F28a (sheet 02/10, 1/20 in. balsa), F28b, and
F28c (sheet 01/10, 1/20 in. balsa). Bond with CA.
32. Turn the fuselage upside down, and fit F28 to the bottom of the fuselage. The tabs along
the edge of F28 will fit in the notches along the bottom edge of the fuselage sides.
The slots in F28b and F28c will fit the tabs on formers F4, F25, and F26. View the fuselage
from behind and ensure that it is not twisted. If a twist is detected, gently twist the fuselage
in the opposite direction until it is straight. “Final bond” the aft end of the fuselage, formers,
sides, and bottom with CA.
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Build Instructions
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Bottom View
F23
F26
Bond
Step 26
Step 25
Step 27
Step 28 Step 32
Step 31
Step 30
Step 29
F24
Bottom View
F25
F27
F28a
F28b
F28c
Bond
Bottom View
F22
F23
F26

Fuselage (continued)
33. Turn the fuselage rightside up. Fit former F29 (sheet 01/10, 1/20 in. balsa) to the notches
in the fuselage sides forward of former F4. The tabs at the base of F29 will fit in the slots
in F1. Bond with CA.
34. Top Sheeting: Locate the forward fuselage sheeting F30 (sheet 05/10, 1/20 in. balsa).
Moisten one side with glass cleaner and allow it to soak for a minute or two. Fit F30 (moist
side out) to the tabs at the top of formers F5 and F13. Wrap F30 around the formers until
the edges of the sheeting come in contact with the fuselage sides. Hold F30 in place with
several strips of low-tack masking tape until dry.
35. While F30 is drying, locate the rear fuselage sheeting F31 (sheet 05/10, 1/20 in. balsa).
Moisten one side with glass cleaner. Fit F31 to the tabs at the top of formers F4 and F25.
Wrap F30 around the formers until the edges of the sheeting come in contact with the
fuselage sides. Hold F31 in place with several strips of low-tack masking tape until dry.
36. When F30 is completely dry, remove the tape. Bond F30 to the fuselage sides and
formers F5 and F13. Reach inside the cockpit and wick some CA around the edge of
former F29, where it contacts F30.
37. When F31 is completely dry, remove the tape. Bond F31 to the fuselage sides and
crosspiece F27, and formers F4 and F25.
38. Finishing: Sand parts F18, F19, and F20 to match the contours of parts F14 and F21.
Sand parts F14 through F17 to match the contour of former F13 and the top sheeting.
Round off the parts to flow smoothly into F18, F19, and F20.
Pro Builder Tip: While sanding the fuselage, we discovered that sanding sticks, like those
used for fingernails, were ideal for sanding the compound curves at the front of the
fuselage. These are available at most hobby shops, and in the beauty section of most
department stores.
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Build Instructions
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F29
F4
F1
Bond
Bond
Bond
Step 33
Step 35
Step 34 Cont.
Step 38
Step 37
Step 36
F30
F31
Rear View
Step 34
Step 35 Cont.

Fuselage (continued)
39. Turn the fuselage upside down. Shape parts F21 through F24 by sanding the corners of
each part down, until you arrive at the glue line between each part. This will establish the
basic contours of this part of the nose. Starting at the rear (which will be flat to match the
landing gear pocket) progressively round the bottom of the parts as you move forward, as
shown in photo 39. Sand the edges down to a sharp edge, at the etched line near the
bottom of the fuselage sides. Round the very front to flow smoothly into parts F18 through
F20. Refer to the fuselage side view on the detail sheets for the proper profile in this area.
Leave the joint between the nose bottom and nose front square with a sharp edge.
40. Lightly sand the rest of the fuselage, removing any excess glue and smoothing any rough
seams.
Lay the completed fuselage aside until required in final assembly.
Tail Surfaces
41. Assemble the rudder by fitting and bonding parts R1 and R2 (sheet 01/10, 1/20 in. balsa).
42. Lay the rudder on the work surface with the left side facing up. Align the leading edge with
the edge of the work surface. Use a sanding stick or sanding block to bevel the leading
edge to a 45 degree angle. Do not sand the rudder “overhang” at this time.
43. Locate the vertical stabilizer V (sheet 02/10, 1/20 in. balsa). Lightly sand the vertical
stabilizer and rudder, rounding the leading edge of the stabilizer and upper “overhang” of
the rudder. Leave the trailing edges of the stabilizer and rudder square.
44. Assemble the horizontal stabilizer by fitting and bonding parts H1 and two H2s (sheet
01/10, 1/20 in. balsa).
45. Assemble the elevator halves from two parts E1 and two parts E2 (sheet 02/10, 1/20 in.
balsa). Bond with CA. Finish the elevator by fitting both assemblies to part E3 (sheet
10/10, 1/32 in. ply). Bond with CA.
46. Lay the assembled elevator on the work surface. Align the leading edge with the edge of
the work surface. Use a sanding stick or sanding block to bevel the leading edge to a 45
degree angle. The bevelled side of the elevator will now be referred to as the bottom, the
un-bevelled side will be referred to as the top.
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Build Instructions
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Bottom View
Etched Line
R1
R2
45 deg.
Top View
Right
Left
V
H1
H2
H2
E1
E1
E2
E2
E3
Bottom View
Step 39
Step 40
Step 41
Step 42 Step 46
Step 45
Step 44
Step 43

Tail Surfaces (continued)
47. Lightly sand the horizontal stabilizer and elevator, rounding the leading edges of the
stabilizer and elevator “overhangs”. Leave the trailing edges of the stabilizer and
elevator square.
Lay the completed tail surfaces aside until required in final assembly.
Wings
Wing parts are designated with the letter “W” followed by a number. Parts have been numbered so that
the wing assembly follows a sequential order: W1 to W14.
48. Upper Wing Center Section: Locate the main spar W1 (sheet 10/10, 1/32 in. ply). Fit one
rib W2 (sheet 06/10, 1/20 in. balsa) to each of the slots in the middle portion of the main
spar W1. Ensure that both ribs point in the same direction.
49. In the outer slots on the spar, fit one each of ribs W3 and W4 (sheet 06/10, 1/20 in. balsa)
together - rib W3 on the inside portion of the slot, and rib W4 on the outside portion of the
slot. Line up rib W3 with rib W4, then wick CA between them to bond them together.
50. Fit the wing center section panel W5 (sheet 05/10, 1/20 in. balsa) to the tabs at the rear of
each rib W2 and W3. “Tack” glue the panel to each rib at the tabs.
51. Wrap the front of the panel over the ribs, fitting it to the tabs at the front of each rib W2 and
W3. “Tack glue” the panel to each rib at the tabs. View the panel from the front, and ensure
that it is not twisted. If it is, gently twist it in the opposite direction until it is straight. “Final
bond” the ribs to the center section panel with CA. Ensure that there are no gaps between
the ribs and the panel.
52. Upper Outer Wing Panels: Lay the right wing panel W6(R) (sheet 03/10, 1/20 in. balsa)
on the work surface with the etched side facing up.
53. Fit ribs W7 and W8 (sheet 06/10, 1/20 in. balsa) to the slots in the trailing edge of the wing
panel. Refer to the Wing Detail Drawing on the detail sheets for the proper location of each
rib. Bond the rear of each rib to the rear of the wing panel.
54. Turn the panel over. Wrap the wing panel over the top of the ribs, fitting each rib to the
notches at the the front of the wing panel. Hold the wing down, flat on the work surface,
and bond the ribs at the inner edge of the front of the panel and at the wing spar. Pick up
the panel and “final bond” the front of the ribs to the leading edge of the wing panel,
ensuring that there are no gaps between the ribs and the panel. View the wing panel from
the front and ends, and ensure that it is not twisted. If it is, lightly spray the panel with glass
cleaner, then pin or weight it down on a flat surface until completely dry. This should result
in an absolutely flat panel.
Repeat steps 52, 53, and 54 to build the left wing panel, using panel W6(L) (sheet 04/10,
1/20 in. balsa).
Build Instructions
Fokker D.VII UM - Build Instructions © 2014 Stevens AeroModel, all rights reserved.!Page 20
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