Page 8
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Construction Manual
Prepare your work area
Now tape the fuselage side plan and a fresh piece of waxed paper
on your building board.
Step 36 - Vertical Fin (V1, V2 and V3)
Locate both V1’s from BP3 and BP9, both V2’s from BP2, and both
V3’s from BP3.
Glue both V1’s together to form a thicker V1, both V2’s to form a
thicker V2, and both V3’s to form a thicker V3.
Step 37 - Vertical Fin (V1, V2)
Glue the V1 and V2 assemblies
together as shown here to form the
completed vertical fin.
This completes assembly of the Mambo’s tail surfaces.
Now it’s time to start construction of the fuselage.
Fuselage Assembly (power choice time)
We’ve now reached the point of our program where it’s time for
you to make a choice. This choice is what you’ll be using to power
your Mambo.
If you are using the powerplant and mount from an older
Apprentice 15e or Apprentice S, you’ll build the central plywood
fuselage crutch one way - if not, you’ll build it another way.
The reason for this choice right now, is that if you’re using the
Apprentice’s motor and motor mount, the mount has a significant
amount of right-thrust already built into it. So when building the
crutch, we’ll actually build it to take out some of this right thrust.
These next steps also rely on
you noting the large laser-cut
numbers in the FS1 and FS2, as
well as the circle engraved into
TR1.
So, now is the time to make
this choice. If you’re using
Apprentice parts, continue on
with step 38. If not, skip forward
to step 38, on page 9.
If using the Horizon Apprentice S or 15e motor AND
Apprentice mount, follow these steps.
Step 38 - Fuselage Assembly (TR1, F3)
Locate TR1 from LP3 and F3 from LP1. Both of these pieces
have orientation marks that you’ll need to refer to in this step.
The top of F3 has two pre-cut notches. TR1 has an etched
circle on the top surface, at the front edge.
Since you’re using the Apprentice
motor and motor mount, hold
F3 as shown (top up on the
building board), then slip TR1 in
at an angle, making sure that the
etched circle faces down.
Rotate TR1 into place, again
making sure that the etched circle
faces down. Glue it to F3, making
sure it is perpendicular to F3 and firmly
seated against the two center tabs in
F3.
Step 39 - Fuselage Assembly (SUP, FS1)
Locate both SUP support pieces
from BP6. These will not be part
of the fuselage, but rather are
used as support pieces. Also
locate FS1 from LP2.
Test fit FS1 to the port side of
TR1/F3 assembly. Only test fit
the tabs from F3, rearward (the flat section).
Now lay the assembly on your board as shown in the photo,
using the SUP pieces to support this assembly. (The SUP
pieces raise the assembly up just enough to clear F3’s side
tabs that extend through FS1.)
When satisfied with the orientation and fit of the tabs, remove
FS1, apply glue and fasten FS1 to F3 and TR1 from F3, rearward.
Step 40 - Fuselage Assembly (WH1, WH2)
Locate WH1 from LP2 and both WH2’s
from LP3. Glue WH1 in place first,
making sure it’s tabs are firmly seated in
the pre-cut slots in FS1 and F3.
Now glue WH2 in place on top of WH1,
as shown here, then the other WH2 on
the other side (bottom) of WH1.
Step 41 - Fuselage Assembly (LG1, LG2)
Locate both LG1 from LP3 and both
LG2 from LP2. One LG2 is glued to one
LG1, making sure it is aligned perfectly.
Then glue the other LG1 and LG2
together so you’ll have a matched set.
These sub-assemblies are now glued in
place. Take care that these pieces are
orientated the right way when glued to
FS1. When correct, both LG2’s will face
each other and the tabs of LG1 will be firmly seated in FS1.
Step 42 - Fuselage Assembly (FS2)
Locate FS2 from LP1. Test
fit it in position, making sure
you can insert all of the tabs
into the slots in FS2.
When satisfied with the fit
of the tabs, remove FS1,
then glue it to F3 and to
TR1 from F3, rearward.
