Copper Wire
(cut to length as required)
Water, fuel, and oil pump tubing – 0.015"-
and 0.025"-diameter copper wire
Tubing
(cut to length as required)
Radiator and engine flex hoses and pipe
joints – 3/32" o.d. clear PVC tubing
Self-Adhesive Copper Tape
(cut to length and width as required)
Wiring harness tube straps
Wood Dowels
Ignition wiring harness tubes – 1/16"-dia.
Flexible Covered Stranded Wire
(cut to length as required)
Ignition wiring
Note that the fuselage cross brace wire cord
and turnbuckles are listed in Stage 3.
This stage requires the assembly of a large
number of britannia castings. Because of
casting limitations, or excessive mold cost, it
will be necessary to drill some holes in many
of the castings for fitting other parts. The
holes required are shown on the plans and
described in this section. Most holes require
a 3/64" (or #55) or 1/16" (or #52) drill bit.
Mark the location of the holes carefully
before drilling. Britannia is fairly soft, so a
pin vise should suffice, or use a drill press.
1. Assembly and Installation
of the Fuel Tank
First, mark and drill the two holes at the top
of the fuel tank frame (E10) and the hole in
the bottom. Glue the britannia cast fuel
gauge (E13) and fill cap (E12) in the holes in
top of the frame, then glue the sediment vile
casting (E14) in the bottom hole.
Glue the photo-etched front and back plates
(E11) to the tank frame (E10). Flip-flop the
plates to see which side fits the best. The
casting may not be exactly symmetrical and
the pattern for the end plates was taken from
the casting. File the edges smooth.
Figure
5-1
illustrates the tank assembly.
24
Plan Sheet 5 covers all the details for the
engine and engine component installation. A
propeller detail is also shown on Sheet 5. The
following parts are required for this stage:
Laser-Cut Wood Parts
Prop laminates – 9 of E44
Britannia Castings
Radiator frame – 1 of E9A
Fuel tank frame – 1 of E10
Fuel tank cap – 1 of E12
Fuel tank fuel gauge – 1 of E13
Fuel tank sediment vial – 1 of E14
Upper engine block – 1 of E15A
Upper engine block bolting feet – 6 of E15B
Lower engine block – 1 of E16
Prop shaft housing – 1 of E17A
Oil pump and housing 1 of E17B
Prop clamp plates – 2 of E18
Prop shaft hub – 1 of E19
Oil fills – 2 of E20
Prop shaft housing top double bracket –
1 of E21
Sump cover – 1 of E22
Carburetor/V intake manifold support –
1 of E23
Carburetor and filter – 1 of E24
Cylinders – 8 of E25A
Spark plugs – 8 of E25B
Water outlet pipes on top of cylinders –
2 of E26B
Intake rocker actuating spring and
housings – 8 of E27
Intake valve rocker arms – 8 of E28
Exhaust valve rocker arms – 8 of E29
Water pump, front half – 1 of E30A
Water pump, rear half – 1 of E30B
Water inlet pipes on side of cylinders –
2 of E31
Water inlet pipe curved section, long
right – 1 of E32
Water inlet pipe curved section, short
left – 1 of E33
Lower intake water pump pipe from
radiator –1 of E34
Camshaft gear box – 1 of E36
Magneto, gear box, and distributor block –
1 of E37
V intake manifold at carburetor – 1 of E39
Intake manifold pipes, long sections –
2 of E40
Intake manifold pipe, long section right –
1 of E41A
Intake manifold pipe, short section left –
1 of E41B
Intake manifolds – 2 of E42
Exhaust manifolds –2 of E43
Photo-Etched Copper Parts
Fuel tank hold down – 2 of R1
Photo-Etched Nickel Silver Parts
Radiator grill – 1 of E9B
Fuel tank front and back plates – 2 of E11
Brass Strip
(cut to length as required)
Fuel tank support and hold-down straps,
and hanger for engine water inlet pipe –
1/64" x 1/16" brass strip
FIG. 5-1 FUEL TANK ASSEMBLY
BACK END
PLATE E11
DRILL HOLES
FOR FITTINGS
FRONT PLATE
(SAME AS BACK)
SEDIMENT VIAL E14
FUEL GAUGE E13 (NOTE ANGLE – SEE PLAN)
TANK CASTING E10
.015"-DIA.
COPPER WIRE
TO CARBURETOR
FIG. 5-2 FUEL TANK SUPPORTS
SUPPORT STRAPS
BRASS
STRIP
TANK
SUPPORTS
STRUT AT
STATION 4
BRASS
STRIP
ENGINE BEARERS
HOLD DOWN STRAP
CAP E12
DRILL HOLE
THREAD
R1
FITTING
STATION 4
TANK
STAGE 5:
BUILDING AND INSTALLING THE OX-5 ENGINE, RADIATOR, FUEL TANK,
AND PROP, AND FINAL RIGGING OF CROSS BRACE WIRES
