Model Tech Blue Max V2 ARF Assembly Instructions Manual page 13

STeP 1: iNSTAlliNG The hATCh CoVer
q Drill two 1/16" (1.6mm) pilot holes through the front of the hatch cover and
into the plywood mounting blocks inside the fuselage. Position each pilot hole
3/16" (5mm) in from the sides of the hatch cover and 3/16" (5mm) behind the
front of the hatch cover.
q Secure the hatch cover into place, using two M2 x 10mm flange-head wood screws.
STeP 2: iNSTAlliNG The CoWl MouNTiNG bloCKS
IMPORTANT Five cowl mounting blocks are provided to mount the cowl. Two cowl mounting blocks D-62 are installed on the
bottom of the fuselage sides, two cowl mounting blocks D-61 are installed on the middle of the fuselage sides, and the single cowl
mounting block D-60 is installed centred on the top of the fuselage (the hatch cover).
q Glue each of the five cowl mounting blocks to the fuselage at the positions
described above, making sure that the front of each cowl mounting block is
even with the front of the fuselage.
IMPORTANT The narrower edge of the two lower cowl mounting blocks
D-62 should be installed even with the bottom of the fuselage. The wider edge
should be toward the top of the fuselage.
IMPORTANT Make sure to cut away the covering material from the gluing surfaces before gluing the cowl mounting blocks into place.
STeP 3: AliGNiNG The CoWl
IMPORTANT If you're using a glow engine, the precut hole in the front of the cowl must be elongated upward to line up with your engine's
crankshaft. This is because the glow engine is installed higher on the firewall than the brushless outrunner electric motor to accommodate
its inverted position. If you're using a brushless outrunner electric motor, you will need to cut the section of the cowling out below the precut
hole to allow clearance for your motor's propeller shaft.
Elongate up if using
a glow engine.
q If you're using a glow engine, carefully elongate the precut hole in the front
of the cowl for your engine's crankshaft. The top of the elongated hole should
be approximately 1-3/8" (35mm) down from the top of the cowl.
Cut away if using a
brushless outrunner
electric motor.
q If you're using a brushless outrunner electric motor, carefully cut out the
portion of the cowl directly below the precut hole in the front of the cowl.
q Line up the front of the cowl, using your engine's drive washer as a guide.
When aligned properly, the front of the cowl should be approximately 1/4"
(6mm) behind the drive washer and the front of the cowl should be centred
from side-to-side when viewed from the front. The cowl should also be straight
when viewed from the side.
q When satisfied with the alignment, use pieces of masking tape to hold the
cowling securely to the fuselage.
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STeP 2: InSTAllIng The hORIzOnTAl STABIlISeR
q Once you're satisfied with the alignment, draw a line on each side of the
bottom of the stabiliser where it meets the fuselage.
WARNING When cutting through the covering to remove it in the next procedure, cut with only enough pressure to cut through only
the covering itself. Cutting down into the balsa structure could weaken the stabiliser and cause it to fail during flight.
q Remove the stabiliser from the fuselage, then carefully cut away the
covering material from inside the lines you drew.
PRO TIP Use a heat-sealing iron to adhere the covering material down
where you cut it. This will prevent it from loosening up and wrinkling.
q Apply a generous amount of 30 minute epoxy to the gluing surfaces on both the stabiliser and the stabiliser mounting sides.
q Set the stabiliser into place and realign it, double-checking all of your measurements once more before the epoxy sets up. Quickly
remove any excess epoxy and use T-Pins to hold the stabiliser in place and aligned until the epoxy has fully cured.
STeP 3: AliGNiNG ANd iNSTAlliNG The VerTiCAl STAbiliSer
q Remove the rudder and its hinges from the vertical stabiliser and set them
aside for now.
q Push the vertical stabiliser into the mounting slot in the horizontal stabiliser.
Use a straight edge to ensure that the trailing edge of the vertical stabiliser is
even with the back edge of the fuselage. This will ensure that the rudder will
line up correctly when it's hinged later.
q Draw a line on each side of the vertical stabiliser where it meets the top of
the mounting slot.
q Cut away the covering material from below both the lines that you drew on
the stabiliser and from the base of the stabiliser, too.
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