H-KING Seagull Instruction Manual

SEAGULL 1570MM SEAPLANE
BUILDING INSTRUCTIONS

CATALOG
Contents of Kit --------------------------------------------------------------------------------P1
BUILDING INSTRUCTION-------------------------------------------------------------------------P2-P20

CONTENTS
1 x Un-assembled Seagull kit.
1 x Paulownia strips
1 x Construction drawing
1 x Operation manual
1 x Set of Connecting rods
1 x Plywood sheets pack
1 x Balsa sheets pack
1 x Balsa sticks pack
1 x Hardwood strips
1 x Accessories bag
INCLUDES:
Page 1

KIT FEATURES
•High quality balsa and plywood construction.
•Easy to fly floatplane design.
•Excellent flight performance and handling qualities.
•Capable of taking off from water, grass and snow.
•Complete accessory pack.
•Extensive clear drawings and step by step instructions with pictures.
•Only adhesives and covering material required to complete the airframe.
BUILDING INSTRUCTIONS
1. Select front former parts A4 and A5. 2. Glue the parts together as shown.
Fuselage Assembly.
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3. Glue parts A24 & A22to part A13, the front fuselage top and battery access hatch.
4. Glue together asa laminate the 2 x A20 parts to form part the keel.
5. Glue together as shown the 4off different shapedA29pieces to make one fuselage side. Repeat
this process to make the second fuselage side.
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6. Glue formers A1/A2/A3/A5 and A6 to the keel A20.
7. Glue the battery mount A15to the above assembly and the add the 3 off A16 to form the dummy
windshield front bracing.
8. Glue the battery access hatch A13 assembly to the top of the front of the fuselage.
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9. Glue part A7 toformer A6. 10. Glue strips A21to front base of fuselage.
13.Glue the 2 off fuselage side strips A26 toformers A6 and A8. Ensure the tapered end of A26
goes to the rear. When dry, glue in formers A9/A10 and A11 into the notches in parts A26. Also at
the point glue the rear of strips A26 together. Be careful at this point not to build a twist into the
fuselage assembly.
11. Glue strips A25 to the sides from the front
nose former A1 back to the rear former A8.
12. Glue in place the radio tray part A17.
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14.Laminate together the 2 off wing fixing plates
A19, when dry install the four-pronged blind nut as
shown.
15.Glue the prepared wing fixing plate A19 to the top
former A8. Then add the 2 off wing seating strips A18.
16.Glue the 3 off 6x6mm balsa strips to the top of
the fuselage from the rear wing seat former A8
down to the rearmost former A11. Glue these also to
formers A9 and A10.
17.Then add the 2 off 6x6mm balsa strips to the
bottom of the fuselage from former A7. These will
require shaping at the rear as shown below then glued
together (Please note these do not go to a point, the
fuselage at the rear needs to be the same width as the
rear of part A12). When these have set add the center
bottom 6x6mm balsa strip from former A7 and shape
it to fit in between the 2 outer strips as shown below.
Be careful at this point not to build a twist into the
fuselage assembly.
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19.At this point add the horizontal stabilizer seat A12 to
the rear of former A11.
20.Using a PVA or similar glue, attach the two balsa fuselage sides to the frame, use dress making
pins or glass/plastic headed pins to hold them in place as the glue dries.
22.Cover the bottom of the rear fuselage with the
balsa sheet parts A30. Once again use a good PVA
glue and pins to hold them in place as the glue dries.
21.Install the 2 plastic push rod outer tubes into the fuselage as shown. They run from the radio compartment
under the wing and exit on either side of the fuselage at the rear just under the horizontal stabilizer seat as
shown above.
18. When these have set add the center bottom
6x6mm balsa strip from former A7 and shape it to fit
in between the 2 outer strips as shown below.
23. Fill in the rear of the fuselage with scrap
balsa as shown. Width of the fuselage at the
rear should match the stern post part D3,
sand as necessary.
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24. Sheet in the underneath of the fuselage to form the hull using 2 off A31. Once again use a PVA
type glue and hold in place with pins as the glue dries.
25. Sheet in the top rear of the fuselage using part A32.26. Glue part A27 to the front of the fuselage
to form the dummy windshield.
27. The nose is made up of 4 layers of part A28. Glue these together once again using a good quality PVA type glue
as this will allow the nose to be easily sanded to shape when the glue has dried. Shape the nose as shown in the
pictures above.
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28. Glue a pair of magnets to the battery
hatch part A14.
29. Glue another pair of magnets to the corresponding
part of the fuselage where the battery hatch fits. Ensure
the polarity of the magnets are correct so that they
attract and not repel.
30. Laminate together the root ribs B1/B2 and B3.
Note: B1 has a front piece which is added later.
The basic fuselage is now finished, sand the entire assembly and smooth and round
off the corners.
Wing Assembly. (Build the 2 wings on a flat surface to avoid any twisting)
31. Position and glue to the 2 off 6x8mm main spars,
wing ribs B4 and B5, B5 are the center ribs. Also add
the rear spars B7 and B8.
32. Add the vertical webbing B10 to the front 2
spars from underneath.
33. Add the root rib assembly that you laminated
at step 30.
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34. Glue the reinforcing ribs B6 to the insides of ribs
B5 so that they face each other.
35. Add the lower trailing edge sheeting to underneath
the rear of the wing ribs. Sand the B9 balsa blocks to a
taper and glue in between the rear of ribs B6.
36. Sand another B9 balsa block to a taper and
glue in between the root rib B1 and the B4 rib next
to it.
39.Add the leading edge B14 to the ribs as shown
above.
37. Trim the front of each rib just in front of the
spar to fit the vertical webbing B13.
38. Glue B13 into position ensuring the hole for the
front wing dowel is nearer the bottom than the top.
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41.Glue to the front of the spar at the root the
separate front part of rib B1. Then add the front
wing dowel plate B11 and the half rib B12.
42.Glue to the leading the upper and lower balsa
sheet B21. For this use a PVA type glue and pins to
hold them in place as the glue dries.. Ensure the
wings stay flat during the process.
40.At this point the wings should
look like this.
43.Add 2 pieces of 6x8mm hardwood to the servo
bay area as shown above.
44.Glue in place the reinforcing parts B16.
Page 11

47.Using parts B17 and B18 construct the wing
servo mount. These are also the wing float
mounts, see further on in the manual.
46.Glue into place the leading edge B15. When the glue has
dried sand to the profile shown.
48.Sand the trailing edge of the wings then
glue 2mm balsa strips to the trailing edge.
45.Add the top trailing edge sheeting B23 and the
rib capping strips B24. The capping strips are glued
to the top and bottom of the wing ribs in between
the leading edge and trailing edge sheeting.
49.Laminate 2 off B20 8mm balsa sheet together and
glue to each wing tip.
50.Sand the wing tips to shape as shown. At this
point the rest of the wing can be sanded as well to
smooth out the joints.
Page 12

53.Very carefully cut the ailerons off the wings. Insert the
stiffeners D9 into the trailing edge of the wing where the
aileron has been removed and glue into place.
54.Mark the ailerons as shown above to form a "V", sand or plane to shape to form the hinge line. Hinge the
ailerons but do not glue the hinges in place, this will be done once the model is covered in film.
51.At this point you need to cut out the ailerons from
the wings. Carefully measure this distance back from
the trailing edge to the point between the 2 spars as
shown.
52.Draw the cutting lines on the wing in pencil as
shown above. Note: Do not cut them off right to
the root, cut them so that the first rib in from the
root becomes the end of the aileron.
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57.Glue into place the 2 off 8mm dowels
to the front of the wing as shown above.
58.Carefully measure and mark the position
of the wing trailing mounting bolt. Drill a 3mm
hole then test fit the wing to the fuselage and
screwing in the supplied 3mm wing bolt.
56.When the glue has set on the dihedral brace in the
first wing you are now ready to join the wings. Slide
the second wing onto the brace and check the wing
roots meet each other with a good joint, if not adjust/
sand as necessary. Also check that the wings are
perfectly aligned with each other with no twists.
When satisfied with the fit and alignment apply glue
to the wing roots and the brace and bring the 2
together. Wipe of any excess glue that squeezes out
and support the wings at each wing tip to achieve the
correct dihedral angle as the glue dries.
55. Glue the 2 off B25 plywood parts together to form the
wing dihedral brace. Before you join the wings test fit
each one onto the fuselage, adjust as necessary. Trim the
roots of each wing next to the spars to ensure the
plywood dihedral brace fits snugly into each root up to
the center of the brace. When happy with the fit glue the
brace up to the center line into one wing only leaving the
same amount sticking out.
Page 14

59.Drill the necessary holes for the aileron servo extension leads to pass through into the
radio compartment. Please note that the aileron leads will need to be installed before wing is
covered with film.
60. Glue together parts C4
and C10.
Remove the assembly from the flat surface and sand the joints as necessary. Glue the horizontal stabilizer to
the seat A12 at the rear of the fuselage. Ensure that it stays square to the fuselage as the glue dries.
Tail Assembly.
Build the the tail parts over the plan. Use a flat surface to avoid any
twisting and use pins to hold to building board as glue dries. Tip: Rub soap
onto the board/plan to avoid the parts sticking.
61.Add the 2 off C3 leading edge parts. 62.Add the 2 off tips,
parts C1.
63.Add ribs C5 and C7 to both sides, glue in vertically
into the slots in C3 and C10.
64. Add the diagonal bracing
C2 and C6 to both sides.
Horizontal Stabilizer.
Page 15

Horizontal Stabilizer.
71. Trial fit the vertical stabilizer to the rear of the fuselage, adjust the fit by sanding or trimming
as necessary. When satisfied with the fit glue into position, ensure it stays vertical to the fuselage
as the the glue dries. Once this has set add the rear skid/reinforcement part D8 as shown.
Rudder.
65. Glue parts D4/D5/D6
and D7 to form the frame of
the rudder.
66. Add the horizontal
braces D12 and D13.
67. Mark the leading edge
of the rudder with a V as
shown above for the hinge
line.
68. Sand or plane the
edges of the rudder in a V
to form the hinge line.
69.Build the outer frame using parts
D1/D2/D3 and D9. 70. Add the horizontal braces D10 and D11.
Page 16

74. Hinge the elevators but do not glue the
hinges in place. Pass the elevator U shaped
metal joiner through the gap behind the
horizontal stabilizer and position it evenly on
the elevators. Mark the position ready for
drilling the holes.
72. Mark the leading edge of the elevators
with a V as shown above for the hinge line.
73.Sand or plane the edges of the elevators
in a V to form the hinge line.
75. Drill the holes on the hinge line of the
elevators to accept the U shaped metal
joiner.
76. Replace the elevators onto the joiner and the hinges but do not glue. Fit the hinges
to the rudder/vertical stabilizer but do not glue these either. The hinges will be glued in
place once the model has been covered with film.
Page 17

77. Glue together parts E3/E4
and E8 as shown above.
82. Glue the float struts E1 to the
floats. When dry, mark a line 80mm
from the top of the float onto the
strut.
Wing Float Assembly.
78. Add to this sub assembly the 2 sides of the
floats parts E6.
79. Add the top to the floats
using part E2.
80. Form the underneath of the floats
using part E7. Due to the curve these
will require pinning in place as the glue
dries.
81. Cap the backend of the
floats using part E5.
83. Glue the struts to the servo
mounts exactly on the 80mm mark
so that they are both identical
84. Screw the servo mount/
float assembly to the wing.
Page 18