ROBBE Hot Shot 3078, Building Instructions

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11
Hot Shot
3078
Building instructions Order No.
Stage 5, winglets and control surfaces, parts 5.1 - 5.12, "S"
Part No. Description Material Dimensions in mm No. off Notes
5.1 Wingtip Plywood 3, die-cut 6
5.2 Winglet Balsa 1.5, die-cut 4
5.3 Sealing piece Plywood 3, die-cut 4
5.4 Screw Steel 3.9 Ø x 16 4
5.5 Control surface Balsa Machined 2
5.6 Adhesive tape Plastic 19 wide - Not included
5.7 Pushrod Steel rod 1.5 x 150 2 One Z-bend
5.8 Horn Plastic Inj. moulded 2
5.9 Pushrod coupler Alu Ready made 2
5.10 Screw Steel M2 x 6 2
5.11 Self-tapping screw Steel 2.2 Ø x 13 4
5.12 Spreader plate Plastic Inj. moulded 2
„S“ Template Plywood 3, die-cut 1
- Glue together parts 5.1 in threes to form the two wingtips,
keeping the edges flush.
- Glue the wingtip assemblies to the wing.
- Remove the pairs of winglets 5.2 from the die-cut sheets and
glue them together with the edges flush.
- Glue together the sealing pieces 5.3 and round them off as
shown in the plan view.
- Glue parts 5.3 to the outside of the winglets, flush with the
bottom edge.
- Drill 2.5 mm Ø holes in the winglets at the punched points,
hold them in position, mark the position of the holes on the
ribs 1.10 and drill them. Drill out the holes in the winglets using
a 4 mm Ø bit.
- Carefully countersink the holes in the sealing pieces using an
8 mm Ø drill held in your hand. Apply thin cyano to the
countersunk areas to harden the wood.
- Offer up the winglets again and fit the screws 5.4 to secure
them to the wing.
- Round off the winglet assemblies neatly as shown on the
plan.
- Cut the control surfaces 5.5 to shape as shown in the plan
view and the cross-sections, trim them as necessary and
plane them to the correct section (A - A) over their entire
length. Sand the planed surfaces smooth to produce the final
airfoil section.
- The wing, winglets and control surfaces can now be covered.
Notes on covering:
- Remember to leave an uncovered strip 6 mm wide either side
of the centreline on the underside of the wing. This provides
a bare wood surface to which the fuselage will be glued later.
- Remove the winglets, cover them separately and then screw
them to the wing again.
- When you have covered the whole model, attach the control
surfaces to the wing using a full-length strip of adhesive tape
5.6 along the top of the pivot line. Apply short strips of tape to
the underside of the hinge to prevent the control surfaces
coming loose.
- Check that both control surfaces move freely up and down,
and that they can move at least as far as the recommended
travels.
- Cut away the covering over the openings for the servo output
arms, the switch, the charge socket and the motor pylon.
- Set the servos to neutral again from the transmitter.
- Connect the pushrods 5.7 to the servo output arms.
- Drill out the linkage holes in the horns 5.8 to 2 mm Ø.
- Mount the pushrod couplers 5.9 on the horns using the
screws 5.10, and check that they rotate freely but with
minimum lost motion.
- Slip the couplers on the free end of the pushrods.
- Place the horns on the control surfaces in the position shown
in the side view and the cross-section on the plan, and drill 2
mm Ø holes for the retaining screws.
- Attach the horns to the control surfaces using the screws 5.11
and spreader plates 5.12. Shorten the screw ends.
- Set up the control surfaces to the correct neutral position
using the template „S“, and tighten the screws 5.10.
Stage 6, fuselage and motor pylon, parts 6.1 - 6.12
Part No. Description Material Dimensions in mm No. off Notes
6.1 Fuselage outside panel Plywood 3, die-cut 2
6.2 Fuselage outside panel Plywood 3, die-cut 2
6.3-6.5 Fuselage core Plywood 3, die-cut 1 each
6.6 Screw Plastic M4 x 2
6.7 Pylon baseplate Plywood 3, die-cut 1
6.8 Captive nut Steel M4 2
6.9 Pylon section, outside Plywood 3, die-cut 2
6.10 Pylon section, core Plywood 3, die-cut 1
6.11 Triangular strip Balsa 15 x 15 x 2
6.12 Towhook Stell 2.4 Ø x 8 x 20 1