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HiperBipe
Scale Aerobatic Electric Model
HiperBipe Specifications
Wingspan: 35.38 in.
Length: 31.3 in.
Wing Area: 358 sq. in.
Weight (Ready to Fly): 20 to 24 oz.
Wing Loading: 8.0 – 9.6 oz. / sq. ft.
Version 1.0, September 23, 2011
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WARRANTY
Mountain Models guarantees this kit to be free from any defects in both material and workmanship at the
time of purchase. This warranty does not cover ANY components or parts damaged by use or modification.
In no case shall Mountain Model’s liability exceed the original cost of the purchased kit. Mountain Models
reserves the right to modify or change this warranty without notice.
LIABILITY RELEASE
In that Mountain Models has no control over the final assembly or material used for final assembly, no
liability shall be assumed or accepted for any damage resulting from the use by the user of the final userassembled product. 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 the kit immediately in new and unused condition.
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 designed to function properly and perform as advertised with the SUGGESTED power
system, speed control, and servos, as described in advertisements and in this manual. We do NOT support,
nor can Mountain Models assist in determining the suitability or use with any other electronics or hardware
not recommended by Mountain Models.
For the proper electronics to complete this model, replacement parts, and product assembly questions,
please contact Mountain Models online at www.MountainModels.com
Thank you for purchasing the Mountain Models HiperBipe. Our kit is a 1/8 scale model of the Sorrel SNS -7
Hiperbipe. Our model is a parkflyer model designed to give you a great scale model that is very unique,
aerobatic, and easy to build.
The HiperBipe can slow down greatly for easy flying and landings, and has plenty of power for any
aerobatic maneuver you can put her through.
The HiperBipe was designed using a state of the art 3D CAD package, to allow for exceptional interlocking
parts design and fit. 3D design also allows us to provide clearer assembly images, without having to use
photos.
The HiperBipe is built from self-jigging interlocking laser cut balsa and plywood parts. It's like a 3D jigsaw puzzle
with instructions. If the instructions are read before hand and followed during the build, the HiperBipe can be built
up and ready to cover in only a few evenings.
We think you’ll like the HiperBipe and look forward to any feedback you might have.
Thank you,
Brian Eberwein
Mountain Models
2935 N Lynndale Drive
Appleton, WI 54914
www.mountainmodels.com
Phone: 920-840-6036
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Before You Begin
Check to make sure that all of your parts are there and in good shape.
Parts List
Number
in Kit
Bundled Parts
1 Laser Cut Parts (37 Sheets!)
1 These instructions of course!
Metal (on the back of the wood bundle)
3 0.032” x 18” Wire
1 0.045” x 18” Wire
2 Pushrod Housing x 18”
1 3/32” x 18” Wire
Plastic Parts
1 Cowling
1 Windshield
Bagged Parts
8 4-40 T-Nuts
2 4-40 Nuts
4 4-40 x 1” Nylon Bolt
4 4-40 x 3/8” Socket Cap Screws
2 4-40 x 3/8” Phillips Head Screws
14 #2 x ¼” Pan Head Screws
2 DuBro 186 Micro Sport Wheels
2 DuBro Control Horns
3 1/8” x 2.5” Dowels
1 12” Spider Wire
2 3/16” x 3/32” Magnets
1 Velcro, 8” Double Sided
8 #4 Washers
1 Sullivan 1/2 “ Tailwheel
Sub-Bagged Parts
4 DuBro Micro EZ Links
6 DuBro Micro Servo EZ Connectors
Description of Part
Building Materials and Tools You Will Need
• Smooth and FLAT work surface
• Wax paper or clear plastic wrap to protect the work surface
• Thin Cyanoacrylate (CA) glue
• 5 Minute Epoxy
• Hobby knife with #11 blades
• Needle nose pliers
• Wire bender or pliers for bending pushrod wires
• Wire cutters
• Screwdrivers
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• Sanding bar and 320-400 grit sandpaper
• Covering Iron
Finishing Materials You Will Need
• Covering material (SoLite, 2 rolls)
• Covering Trim (SolarTrim)
Electronics You Will Need
• 4 channel radio minimum
• 4 to 6 channel mini receiver (Berg 4L, Berg 7, or Spektrum 6110e)
• 4 ea. Hitec HS-55 servos
• Scorpion 2215-1127
• APC 10x5e Prop
• Scorpion 25A ESC
• 3S-1300 to 3S-1400 mAh LiPo
• 1 Pair Deans Ultra Plugs for Battery and ESC connection
General Building Tips
• READ THE INSTRUCTIONS all the way through and study the plans BEFORE starting any
work on the model.
• PRE-SANDING: BEFORE removing any parts from the balsa sheets, use a sanding block
with 320 grit sandpaper and lightly sand the back of the balsa sheets. Our balsa suppliers
have been sending us wood that is slightly over sized, so sanding the back of the balsa
sheets reduces the thickness just slightly and removes any charring from the laser cutting
process.
• Balsa is a lightweight and fragile wood, so you do need to be careful with it; however, you
will also need to use a little bit of force to make everything fit properly, so don’t be too
timid.
• Do not remove any pieces from the balsa sheets until they’re ready to be used. That way,
parts won’t get mixed up or disappear.
• Do NOT glue anything until told to do so.
• Join all of your pieces using thin CA (Cyanoacrylate) glue, unless we tell you otherwise. In
general, only a small amount of CA is necessary to glue parts together.
• Don’t over force your pieces together. If they aren’t fitting together properly, make sure you
have the right pieces and that they are oriented correctly. If needed, you can lightly sand
the part to fit after making sure it is the correct part and oriented correctly. On balsa “tabs”,
you can “pinch” the wood with your fingers to get them to fit in slots. (The tabs might be
tighter some times, due to tolerances in wood thickness)
• If you want to remove the charred edges caused by the laser cutting process, lightly
dampen a cloth with bleach and gently rub the affected areas. Removing the char will not
increase the strength but will make it look better. It also keeps that dark edge from showing
under the lightweight coverings.
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FUSELAGE ASSEMBLY:
1. Slide the
(with text facing
FORWARD) into the Lt. Ply
crutch, F1 (with text facing
UP), rotating it into place.
Do NOT glue it yet.
2. Press the crutch into the
1/16" plywood F4, with the
text of F4 facing
FORWARD. Do NOT glue
it yet.
3. Glue the 3/32" Balsa F14
parts together to form F14,
using thin CA, as shown
below.
1
" Lt. Ply F3
8
4. Glue in the #4 washers,
flush with the TOP of F14.
5. Press F14 into F3, but do
NOT glue yet.
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6. Press the
1
" Lt Ply F2 onto
8
the crutch assembly. (Do
NOT glue yet)
7. Insert 4-40 T-Nuts into the
bottom (dirty) side of
1
" Lt
8
Ply F5. Make sure they are
flush with the part, using a
hammer, if needed.
9. Insert 4-40 T-Nuts into
TOP (clean side) of
1
" Lt Ply
8
F10.
10. Press
1
" Balsa F9 into
8
F10 with the taxt facing as
shown in the image to the
left. Do NOT glue yet.
8. Press
3
" balsa F7 into
32
TOP of F5. Do NOT glue
yet.
11. Press the F9/F10
assembly into F4, as shown
below. Do NOT glue yet.
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12. Press the
3
into
32
1
" Ply F21a
32
" Balsa F21. Make a
LEFT and RIGHT,
assembling them side by
side, as shown. Making sure
they are pressed fully
together.
13. Glue the
1
" balsa F21b
16
onto F21a, using thick CA,
being sure that they are lined
up.
14. Secure the dovetail joints
between F21 with thin CA.
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15. Insert the crutch
assembly into F21 with the
plywood doubler facing to
the OUTSIDE. It helps to lay
the doubler on the table and
press the crutch into F21.
Then, pick it up and press
the doubler fully onto the
crutch. So it a bit at a time
and do not press on any area
that does not have a former
or crutch behind it. Do NOT
glue anything yet.
16. Press the
1
" Lt Ply F6
8
and F10 assembly into the
fuselage side doubler, as
shown. The T-Nuts on F10
are to the FRONT of the
plane. Do NOT glue them in
yet.
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17. Press the other fuselage
doubler onto the crutch, once
again with the plywood
facing to the OUTSIDE.
18. Yes, you really do get to
use the glue bottle in earnest!
Glue all of the joints in the
assembly with thin CA,
AFTER making sure all parts
are fully pressed together,
and that F9 is at a slight
angle to match the slots in
the side doublers.
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19. Glue the
3
" Balsa F15
32
parts together, using thin CA.
20. Press F15 in place in the
fuselage crutch, as shown.
The small holes in F15 (for
hatch screws) goes to the
back of the fuselage. Do
NOT glue it in place yet.
21. Press the
1
" Lt Ply F8 in
8
place, as shown. Make sure
it is straight and fully
inserted, and secure it with
thin CA.
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22. Press the
3
" Balsa F16
32
dashboard in place in the
fuselage assembly. Secure
with thin CA.
23. Glue the
1
" Balsa
16
fuselage sides together,
consisting of F23, F23a,
F23b, F23c, and F23d. The
parts shown below marked
with X's have the dirty side
of the wood facing up, for
best parts fit.
24. Repeat step 23 to make
the other fuselage side.
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25. Glue the fuselage parts,
1
F18 (
" Balsa), F19 (
16
Balsa), and F12 (
3
" Balsa)
32
3
"
32
together with thin CA, as
shown above.
26. Glue a fuselage side onto
the RIGHT side of the
fuselage crutch assembly
with thick CA. Make sure
the fuselage side is pressed
completely onto the crutch
assembly.
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25. Press F13 and F11onto F12. The text on F11/F12
should be facing FORWARD and the text on F12
should be UP. Do NOT glue them yet.
26. Press the F11/F12/F13 assembly into the right
fuselage side. Do NOT glue yet.
28. Glue the Landing Gear Mount
parts together, using thick CA and
dowel for alignment. LG1 (
1
LG2 (
LG4 (
" Ply), LG3 (
16
1
"
16
Ply).
1
1
" Ply), and
32
" Lt Ply),
8
29. Glue the Landing Gear Retainers
together, using thick CA and
dowel for alignment. LG2a (
and LG3a (
1
32
" Ply).
1
8
1
16
1
8
"
" Ply)
27. Press the LEFT fuselage side
onto the crutch and F11 assembly.
Square up the fuselage and secure
the joints with thin CA.
"
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31. Glue F20 and F18 in place
on the fuselage. ONLY glue in
F20 at this time, with thin CA.
30. Slide the Landing Gear
mount in place, with LG1 facing
the FRONT. Glue in place with
thin CA.
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32. Press F19 into place on the
fuselage. Make sure all joints
are fully inserted. Press the back
of the fuselage down so it is
sitting FLAT on the fuselage
bottom and secure the fuselage
top and bottom with thin CA.
35. Glue the
3
" balsa H1 and
32
H1a parts together, using thin
CA.
36. Glue H1 onto the H2 parts,
using thick CA, making sure
that it forms to the curve on the
H2 parts.
37. Glue the
1
" Ply H3 tabs in
16
place, on H1, as shown below,
using thick CA.
33. Glue the
1
" Balsa F17 parts
16
together with thin CA. Slide the
F17 part into the fuselage, by
bending it slightly. Use thick
CA to glue it in place over the
formers.
34. Glue the
3
" Balsa F25 in
16
place, as shown, with thick CA.
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35. Slide the hatch in place, and
secure in place with 2 of the #2x
1
" screws. Do NOT overtighten
4
the screws. Take out the screws,
remove the hatch, and reinforce
the threaded holes with thin CA.
36. Glue the
onto the
3
" balsa FH6 parts
32
1
" plywood FH9 parts,
16
making sure to line up the slots
in the bottom. Make a RIGHT
and LEFT version, as shown in
the image.
37. Glue the
3
" Balsa FH1 and FH1a parts together,
32
using thin CA.
38. Glue the
1
" Ply FH3 and
32
together, using thick CA and
1
" Balsa FH3 parts
16
1
" dowel to align the
8
parts.
39. Dry assemble FH1, FH2, FH3, and the FH6/FH9
assembly with the plywood on FH9 facing OUTSIDE.
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40. Glue the
1
" Balsa FH8 in place, as shown.
8
41. Glue the
1
" Balsa FH5 in place, lined up with
16
the front of FH2 and centered on FH8.
42. Glue the
1
" Balsa FH4 parts together, using
16
thin CA.
43. Dry fit FH4 in place on the hatch frame. When
satisfied with the fit, glue it in place with thin CA.
44. Glue in place the
1
" Plywood FH10 parts in
16
place on the hatch, as shown, with thick CA.
3
45. Glue in place the
16
3
" x
" magnets, flush with
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the hatch bottom, with thin CA.
46. AFTER COVERING, glue in the
3
" Balsa FH4
16
with thick CA.
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47. Glue the pushrod housings in place, as shown
above. Leave about
1
" of pushrod in front of the
8
former.
PUSHROD HOUSINGS
PUSHROD HOUSINGS
BOTTOM VIEW
48. Trim the pushrod housing flush with the
fuselage top and bottom, where they exit.
49. Glue all
1
" Balsa tail parts together with thin
8
CA, as shown in the images above. Glue the
Basswood skid in place with thick CA. The
Basswood skid is in the parts bag.
1
"
8
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50. Glue all
together with thin CA, as shown in the images
above.
1
" Balsa Stab and Elevator parts
8
TOP OF
ELEVATOR
SIDE VIEW OF ELEVATOR
STEEL
RULER
STEEL
RULER
51. Sand all tail parts lightly with 320
Grit sandpaper.
52. Sand a bevel in the elevator and
rudder, as shown. The easiest way to
do this is by placing a metal straight
edge below the part, and one on top
of the part. That way, you don't end
up with a wavy hinge line.
TOP VIEW OF RUDDER
SANDING
BLOCK
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53. Press
1
" Lt Ply MM2 and MM3 onto the
8
Plywood MM4, but do NOT glue yet.
1
"
16
54. Press the
1
" Lt Ply MM1in place, as shown.
8
55. Make sure parts are fully inserted and secure
with thin CA.
56. Glue MM5 in place, with thick CA.
57. Insert 4-40 T-Nuts from behind, as shown. Use
a washer on a 4-40 x
it into the T-Nut to pull the T-Nut in place.
3
" cap-head screw and screw
8
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58. Glue the
3
" Balsa LG2 to the
32
1
"
16
Balsa LG1 with thick CA, lining up the
edges. Repeat to make a LEFT and
RIGHT side, as shown. Cut out the
center 'tabs' in LG2 so the landing gear
wire can fit in there.
59. Glue the
60. Glue the
1
" balsa P4 to
16
1
" Plywood P5 through P4 to P3 with thick CA.
16
3
" Balsa P3, with thick CA.
32
61. Glue the remaining P2, 2 ea. P7, and P8 together with thick CA, making sure to line up the
edges.
62. Repeat Steps 59 to 61 to make the oposite side. REMEMBER to make a LEFT and RIGHT
wheel pant. Double and tripple check the parts alignment to make sure you do not make 2 of
one side.
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63. Bend the
3
" wire to form the main landing gear. TIP: Use a good
32
wire bender, like the K&S or DuBro wire benders to make this an easy
job!
64. Bend the tail gear wire from 0.032" wire. Attach the tailwheel by
sliding the wheen onto the wire and then bending the wire up 90 degrees
to keep the wheen on.
This completes the major assembly steps of the fuselage. Set the parts
aside in a place where they will not get damaged, taken by kids, or eaten
by the dog!
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3. Slide the ribs onto the main spar, as shown below. The 'tall' part of W14 goes 'up'. Do NOT
glue anything yet.
parts up with
1
8
" dowel.
1. Join the long parts shown above, with thin CA. (W1 x 2, W10 x 2, W11 x 2, W16 x 2)
2. Glue the rib assembly W5T-W6T-W5T together with Thick CA, using the holes to line the
TOP WING:
WING ASSEMBLY:
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7. Glue the
lining up the notches and holes, with Thick CA.
6. Press spar cap W10 onto W1, as shown,
faces the back of the wing. Do NOT glue it.
making sure that the slot in the center of the part
1
32
" Ply W19 onto the middle of W16,
5. Slide W13 onto each W12, but do NOT glue it yet.
4. Slide W12 onto each wing half, a little at a time, to prevent
breaking it. Press the tabs on the end of W12 into rib W2T. Do
NOT glue it yet.
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11. Weigh the wing down to keep it flat on the
spar and building tabs on the ribs. Make sure the
leading edge is straight and that all parts are fully
pressed together. Secure all joints with Thin CA.
10. Slide on spar cap W11 onto the wing
assembly, as shown below.
13. Glue the W20 parts together with Thin CA.
are bigger than the holes in the plywood)
12. Glue on the
Be sure to line up the holes. (The holes in W22
trailing edge plywood, as shown, with Thick CA.
3
16
" Balsa W22 parts onto the
8. Slide W16 onto the ribs, with the plywood UP.
9. Slide W17 onto the W9 end ribs and then press
it onto W16. Do NOT glue.
Slide it in place a little at a time on each rib, to
keep from breaking it. Do NOT glue.
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15. Glue on the
front of the spar and in between the spar caps,
with Thick CA.
14. Glue on the W20 wing tip parts onto the wing,
as shown. Dry fit them first, and then glue with
Thin CA.
17. Remove weights, flip the wing over, and glue
in the
3
32
slightly. Trim them to fit after the wing is
completed.
16. Glue in the
on the top of the wing. Line them up with the
outside of W9. They will overhang in the center
" stringers on the bottom of the wing.
3
32
" stringers (2 on each wing side)
1
8
" Balsa W18 in place, on the
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Spar. The plywood side of W3a faces the
CENTER of the wing. Do NOT glue them yet!
20. Slide ribs onto the W1 Spar, as shown above.
Press the
3
16
" Balsa W23 into the center of the W1
19. Glue together W7-W28-W7, using Thick CA
and
make 2 assemblies.
NOT glue in the dowels. Do this step twice to
1
8
" dowel through the holes for alignment. Do
as shown in the image above!
18. Glue
for the aileron servo. Make a LEFT and a RIGHT,
with Thick CA, lining up the rectangular cutout
1
32
" Plywood W3b onto
1
16
" Balsa W3a
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lining up the notches and holes, with Thick CA.
24. Glue the
1
32
" Ply W19 onto the middle of W16,
22. Slide W12 onto each wing half, a little at a time, to
rib W2. Do NOT glue it yet.
prevent breaking it. Press the tabs on the end of W12 into
23. Slide W13 onto each W12, but do
NOT glue it yet.
21. Press the
W1 Spar. Do NOT glue them yet.
3
32
" Balsa W24 parts into the
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26. Slide W16 onto the ribs, with the plywood
DOWN. Slide it in place a little at a time on each
rib, to keep from breaking it. Do NOT glue.
faces the back of the wing. Do NOT glue it.
25. Press spar cap W10 onto W1, as shown,
making sure that the slot in the center of the part
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28. Turn the wing back over to sit on the rib
ribs, and then press it onto the tabs of W16.
building tabs. Slide W27 ont the W9 end
27. Turn the wing over and
press W11 in place on W1.
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33. Glue on the
front of the spar and in between the spar caps,
with Thick CA.
1
8
" Balsa W18 in place, on the
31. Glue the
32. Remove weights, flip the wing over, and glue in the
the 'bottom' of the wing.
1
16
" Balsa W25 part in place with Thick CA.
30. Glue in the
center slightly. Trim them to fit after the wing is completed.
wing. Line them up with the outside of W9. They will overhang in the
3
32
" stringers (2 on each wing side) on the 'top' of the
3
32
" stringers on
spar and building tabs on the ribs. Make sure the
leading edge is straight and that all parts are fully
pressed together. Secure all joints with Thin CA.
29. Weigh the wing down to keep it flat on the
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secure all the parts with Thin CA. WSM3 and WSM5 sit "
36. Press WSM4 and WSM5 in place, as shown, and then press
the servo cover to rest on.
WSM3 in place from below. After everything is lined up,
below the surface of the parts next to them, to form a 'shelf' for
35. Press the " Balsa WSM2 parts into the slot in the W1 spar.
The back of WSM2 rests on the trailing edge suppport. Do
NOT glue it yet.
spar at an angle, and slide it onto the trailing edge
support.
34. Glue in the
OUTSIDE of the ribs, with Thick CA, by pushing
the 'front' of WSM1 into the cornerof the ribs and
1
16
" Balsa WSM1 parts to the
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37. Glue the W20 parts together with Thin CA.
39. Glue the
40. Glue on the
with Thick CA. Be sure to line up the holes. (The holes in W22 are bigger than
the holes in the plywood)
3
32
" W26 Parts in place, as shown above, with Thin CA.
3
16
38. Dry fit the W20 parts onto the wing tips. When satisfied that they are
properly installed, glue them with Thin CA.
" Balsa W22 parts onto the trailing edge plywood, as shown,
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1
44. Sand the ailerons as shown in the above images.
43. Press
you make sure that the aileron is straight and FLAT, secure it with Thin CA. (Repeat to
make 2 LEFT and 2 RIGHT ailerons)
42. Press the Aileron ribs in place, as shown below, but do NOT glue them yet. They are
them with Thin CA. (Repeat to make 2 LEFT and 2 RIGHT ailerons)
16
" Balsa A3,
3
32
" A5 in place. Make sure it is fully inserted and FLAT against the ribs. After
1
8
" Balsa A2, and
1
16
" Ply A4. Make sure they are fully pressed in and glue
above. If you build them right next to each other, you can make sure you make the correct sides.
41. Glue the
the slots carefully. Make 2 RIGHT and 2 LEFT ailerons. One LEFT and one RIGHT are shown
1
64
" Plywood aileron reinforcement strip to the A1 parts. Line up the rear edges and
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1. Sand the wheel pants to the profile shown to the right. Round the
3. Use a piece of
5. Trim out the pieces of former F13 that are in the slot for the
Horizontal Stab.
The smoother finish sanding you do, the better your covered airplane
will look.
slot for the Horizontal Stab, as shown in the image to the right.
4. Lightly sand the entire airframe, finishing with 320 grit sandpaper.
the top and bottom fuselage sheets where they come together in the
1
8
" Balsa with sandpaper glued to one side, to sand
2. Sand the leading edge of both wings round, as shown in the image
to the right.
sandpaper.
top corners and then sand the entire wheel pant smooth with 320 grit
SANDING AND FINISHING:
Sand this area as
described in Step 3.
Trim this 'tab' off, as
described in Step 5.
dowel. Make 2 of these assemblies.
This completes the main Wing and Wing
Parts construction.
46. Glue WS2-WS1-WS2 with Thick CA,
using the holes to align the parts with
45. Glue the
Balsa WS2 parts, using Thick CA. (Repeat 3
more times)
1
16
" Ply WS4 parts into the
1
8
"
16
1
"
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COVERING:
1. Cover your airplane with SoLite. Do NOT use heavier coverings, such as MonoKote, UltraCote, etc. If
you do, you can warp and damage the structure, and will need a lot of nose weight to balance your
airplane.
2. Refer to the instructions that came with your SoLite on how to cover and in what order to cover your
airplane components.
3. Inspect your wings for any warps. If a wing is warped, remove the warp by twisting it the oposite
direction and heat the covering with your covering iron. Do this a little at a time until the warp is gone.
4. You will open up some areas after you are done covering. These areas include the side windows in the
Fuselage, slots in the fuselage sides for the Horizontal Stab, slots for the Vertical Fin, the servo bays in
the bottom wing,, the areas shown below, and anywhere that parts are being glued together.
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3. Glue the dowels into the wings as shown.
2. Cut
1
8
" dowel into 4 pieces, each
1
2
" long.
1. Glue in the
the ribs, as shown. Dry fit them first, to make sure
you have them installed correctly.
FINAL ASSEMBLY:
1
16
" Ply WS3 parts into the slots in
37
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4. Assemble the wheels and wheel pants to the
landing gear wire, as shown below. The wire
starts through the wheel pant, through an
spacer, through the wheel, through another
1
" Lt Ply
8
1
" Lt
8
Ply spacer, and out the other side of the wheel
pant.
5. Secure the wheel pant to the landing gear wire
with #2 x
1
" screws going through the
4
1
" Ply part
16
and into the wheel pant.
6. Glue the landing gear fairings onto the landing
gear wire, as shown below, with Thick CA. You
can cover the wire with a piece of covering or
covering trim.
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7. Press the main landing gear wire into the
landing gear mount in the fuselage. Press the
landing gear retainer into the slot to retain the
main landing gear wire. We do not glue the
landing gear wire or the retainer in place, so it can
be removed, if need be later on.
Wire pressed into
hole and wrapped with
Spider Wire.
1
"
32
8. Drill a
1
" hole through the basswood skid
32
where the tail gear wire should go through. The
angled section of the tail gear wire that leads to
the wheel sits at the back end of the basswood
skid.
9. Press the tail gear into the hole and wrap the
tail gear wire to the basswood skid with the
Spider Wire included in the parts bag. Glue the
wire with Thin CA.
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10. Slide the Horizontal Stab into
the fuselage slot, centered. Press
the Vertical Stab and Skid through
the fuselage and into the slots in
the Stab. Make any adjustments
(like sanding lightly) to make sure
they fit properly.
11. When happy with the fits, glue
the Stab, Vertical, and Skid in
place, making sure that the Vertical
Fin is at a 90 degree angle to the
fuselage and the Stab is Horizontal.
40
40
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12. Hinge the Rudder to the
Vertical Fin and the Elevator to the
Stab, using Hinge Tape, as shown
in the drawings. Make sure that
they move freely in each direction.
If they do not, remove the tape and
try again.
TAPE
Elevator at full
deflection.
13. Install the Control Horns, as
shown, using Thick CA. Trim the
excess tabs sticking out the other
side of the Rudder and Elevator.
14. Press the Motor mount into the
front former, making sure it is
FULLY seated against the former.
Glue it in place with Thin CA.
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15. Install the motor as shown below, with the
included 4-40 x
3
" bolts.
8
16. Install a DuBro EZ Servo Connector onto one end
of the long servo arm of your servo.
17. With your servos centered (power up your radio
to double check), install the servo arms, as shown
below.
18. Install your servos in the fuselage, as
shown below, using the screws included with
your servos.
19. Place an L-Bend at the end of the 2 pieces
of 0.032" wire.
20. Slide the pushrod wires into the pushrod tubes, from the back and press the
"L" bend into the control horns on the elevator and rudder. Make sure the
pushrod wires go through the Servo connectors on the servos, as well.
21. Secure the pushrod wires to the control horns with the included DuBro Micro
EZ Links (small white plastic parts).
22. Tighten the screws of the DuBro EZ Servo connectors onto the music wire
and trim the wires about
1
" in front of the servo connectors.
2
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installing the screws.
included with the servo. Do NOT press to hard because you do not
26. Install the aileron servos into the wing, as shown, using the screws
want to accidentally break the ribs that the servo goes through. It helps
to hold the ribs from the top and bottom between your fingers while
25. Trim off the servo arm side that is not being used (will be inside
the wing), so the servo will fit into the wing.
so it is at a 90 degree angle to the servo.
that came with hour Hitec HS-55 servo,
24. Power up your system and center
your aileron servos. Instal the long arm
shown in the images.
23. Glue in the control horns with Thick CA, as
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32. Install DuBro EZ Servo Connectors as shown in the image below.
31. Secure the wing struts to the top wing with a 4-40x
Nut, with a washer under the bolt and nut.
3
8
" bolt and the 4-40
28. Install the servo bay covers, using SolarTrim or tape.
29. Glue wing struts into the bottom wing, using Thick CA, and making
27. Instal the ailerons on the wings with Hinge Tape, making sure to put
the top ailerons on the top wing.
sure that the struts are at a 90 degree angle to the wing.
30. Install the wings onto the fuselage with the 4-40 Nylon bolts.
36. Center the aileron and secure the wire to the Servo Connector.
37. Repeat steps 31 through 35 for the other side of the wing.
35. Place a Z-Bend in the 045 wire and install in the TOP aileron horn and
through the EZ Servo Connector on the bottom wing.
1
4
" aft of the connector.
33. Place an L-Bend in a 0.032 wire. Install wire through the EZ Servo Connector
and secure to the servo using the DuBro EZ Link.
34. With the servo centered and aileron flush with the wing, secure the EZ Servo
Connector and trim off the wire about
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45. CENTER OF GRAVITY: With the battery under the front
hatch, and secured with velcro, check your CG. Your model should
You can go as far back as
balance, with the wigs level, at the leading edge of the top wing.
39. Install the cowling to the fuselage with 4 ea. #2 x
and 2 on the right side of the cowling. Make sure the cowling is centered with the motor.
40. Install the windshield to the front hatch with Canopy Glue. Trim the excess material around the hatch.
41. Trim the cowling, if necessary so the hatch can slide in from the side.
42. Install side windows and top front window on fuselage, and top window on the top wing, with Canopy Glue.
43. Set the Control Throws as shown below.
44. Secure your ESC and RX as far forward as you can, using sticky backed Velcro.
1
4
" screws into the fuselage side. Use 2 screws on the left
38. Trim the cowling out of the sheet. Trim out a hole about
cut out the cooling vents in the cowling.
1
8
" larger than your prop adapter on your motor, and
High Rates: MAX Up and Down
Low Rates:
AILERONS:
1
4
" Up and Down
ELEVATOR:
25% Expo
Low Rates:
High Rates:
3
5
8
8
" Up and Down
" Up and Down
RUDDER:
High Rates: 1" Left and Right
Low Rates:
3
4
" Left and Right
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PRE-FLIGHT SETUP AND INSPECTION:
These are things that you should check before EVERY flight. Get in the routine of checking these, and you
won't loose a model to improper setup.
1. Double check the balance of the model and make sure the CG is where it should be.
2. Check the wings and tail surfaces for any warps.
3. Check that the DuBro EZ Links and EZ Servo Connectors are tight.
4. Check control surfaces and make sure they are moving the proper direction. Check each surface and
don't just 'wiggle' the sticks.
5. Make sure your batteries are fully charged and balanced.
FIRST FLIGHTS:
1. Have another pilot with you for your first flight. It is helpful to have someone to assist you with any trim
changes you may need.
2. If using the wheel pants, you will need a smooth surface to take off from. If flying from grass, remove
the wheel pants. You can also hand launch the model, if you want. If you do hand launch, throw the model
LEVEL, and not up or down. Also, do NOT run when hand launching an airplane.
3. After gaining altitude and trimming the model out, check the stall so you can see how slow you can land
the model. The HiperBipe can slow down very nicely.
4. Have some fun! The HiperBipe is a very capable aerobatic model. It will knife edge beautifully, but does
require some elevator and aileron inputs.
We know you'll enjoy the HiperBipe as much as we have. We would like to hear any feedback you have on
any of our models, as we are always looking for improvements based on our valuable customer feedback.
Contact us by email at [email protected] or call us at 920-840-6036.
You can also search for the HiperBipe discussion thread on www.RCGroups.com and find us on Facebook
by searching for Mountain Models.
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