k 1 a m o s - kk eezebilt boat kitseezebilt.tk/osa-1.pdf · lot of fittings and figures of this...
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F5B
Grain
Grain
F1
A
F3B
F2A
F2B
All material 1/8 hard balsa except where indicated
F3A
1 inch
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F1B
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F4A
EezeBilt OSA Missile Boat - Page 1 of 19
F5A
F4
B
F7A
Grain
1 inch
F8A
All material 1/8 hard balsa except where indicated
TRANSOM
align on t his l ine
j oin 1
BOW SHAPER A
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EezeBilt OSA Missile Boat - Page 2 of 19
F7B
F6B
F8B
F6A
j oin 3
EezeBilt OSA Missile Boat - Page 3 of 19
All material 1/8 hard balsa except where indicated
Grain
1 inch
align on t his l ine
al ign on t his l ine
Released free under Creative Commons copyright CC BY-NC-SA
See www.eeezebilt.tk for more details
al ign on t his l ine
j oin 5
j oin2
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al ign on t his l ine
Released free under Creative Commons copyright CC BY-NC-SA
All material 1/8 hard balsa except where indicated
j oin 5
EezeBilt OSA Missile Boat - Page 4 of 19
1 inch
Grain
align on t his l ine
j oin 3
j oin 2
j oin 4
j oin 6
al ign on t his l ine
Grain
1 inch
Released free under Creative Commons copyright CC BY-NC-SA
All material 1/8 hard balsa except where indicated
j oin 4
j oin 6
al ign on t his l ine
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al ign on t his l ine
EezeBilt OSA Missile Boat - Page 5 of 19
Grain
al ign on t his l ine
al ign on t his l ine
EezeBilt OSA Missile Boat - Page 6 of 19
Grain
1 inch
All material 1/16 hard balsa except where indicated
See www.eeezebilt.tk for more detailsReleased free under Creative Commons copyright CC BY-NC-SA
See www.eeezebilt.tk for more details
al ign on t his l ine
Grain 1 inch
EezeBilt OSA Missile Boat - Page 7 of 19
All material 1/16 hard balsa except where indicated
Released free under Creative Commons copyright CC BY-NC-SA
al ign on t his l ine
All material 1/16 hard balsa except where indicated EezeBilt OSA Missile Boat - Page 8 of 19
Grain
al ign on t his l ine
al ign on t his l ine
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1 inch
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EezeBilt OSA Missile Boat - Page 9 of 19
Released free under Creative Commons copyright CC BY-NC-SA
All material 1/16 hard balsa except where indicated
Grain
1 inchal ign on t his l ine
EezeBilt OSA Missile Boat - Page 10 of 19
All material 1/8 hard balsa except where indicated
Grain
1 inch
See www.eeezebilt.tk for more details
Released free under Creative Commons copyright CC BY-NC-SA
All material 1/8 hard balsa except where indicated
See www.eeezebilt.tk for more details
EezeBilt OSA Missile Boat - Page 11 of 19
1 inchGrain
Released free under Creative Commons copyright CC BY-NC-SA
Released free under Creative Commons copyright CC BY-NC-SA See www.eeezebilt.tk for more details
EezeBilt OSA Missile Boat - Page 12 of 19
1 inch
All material 1/16 hard balsa except where indicated
Grain
Grain
Posit ion of
st rips
Door
posit ion
Rear
Missile
Form er
Back
Missile housing
Rear front
RearMissile
Form er front
Rear Missi le
housing front
underneath
1/ 8" balsa t r iangle
sect ion
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EezeBilt OSA Missile Boat - Page 13 of 19
Note that sides are handed for a
sloping deck. Be sure to m ake one
left and one right !
All material 1/16 hard balsa except where indicated
The outside of each rear m issile launcher
has 5 reinforcing st r ips of 1/ 16" square
balsa. Cut from sheet and add i f desired.
Copper
wire
hinges
Make 2 of everything on t his sheet - assem ble
as one r ight and one left hand!
Rear Missi le
Door
Missile
hat ch
Rear Missi le housing
front
1 inch
Rear Missi le
INNER side
Grain
Front Missile
housing front
underneath
Note - slides in
slot on sides
Missile housing
front a
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All material 1/16 hard balsa except where indicated
Missile housing front b
Front Missile
Form er front
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Front
Missile
Form er
back
Front Missile housing
front c
Make 2 of everything on t his sheet - assem ble
as one r ight and one left hand!
Front Missile
Door
Do
or
po
sitio
n
Copper
wire
hinges
Missile
hat ch
INNER side
Grain
Posit ion of
st rips
The outside of each forward
m issile launcher has 3
reinforcing st r ips of 1/ 16"
square balsa. Cut from sheet
and add i f desired.
1/ 8" balsa t r iangle
sect ion
1 inch
EezeBilt OSA Missile Boat - Page 14 of 19Note that sides are handed for a
sloping deck. Be sure to m ake one
left and one right !
1 inch
Released free under Creative Commons copyright CC BY-NC-SAReleased free under Creative Commons copyright CC BY-NC-SA
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EezeBilt OSA Missile Boat - Page 15 of 19
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EezeBilt OSA Missile Boat - Page 16 of 19
1 inch
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Socket
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Aerials - make from telescopic brass to be removable. Solder washers on as shown
Make a winscreen out of thin acetate, and glue on top of the bridge parapet.
Windows are made from squares of acetate, with the edges painted, stuck on the outside of the frame
Chain Guide - this was made from a bent edge of plastic sprue glued onto a base
Winches - these are easily made from wood or metal rod, turned with a dip in the middle
Aerial
Side windows - make 4
Front windows - make 3
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EezeBilt OSA Missile Boat - Page 17 of 19
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If you want to make your own fittings, this section provides some examples of how things were done on the prototype. They are 1:1 scale so measurements can be taken from them.
First, a word about scale. The OSA is modeled at the popular 1:48 scale(Railway 'O' gauge) so a lot of fittings and figures of this size can be bought commercially. Incidentally, the boat is quite close to scale - the major amendment is that the superstructure is somewhat bigger to enable easier access to the inside. A number of detail items are also lacking, such as life-rafts. There are many varients of these boats- the most common Warsaw Pact ones will have a more complex mast with extensive electronic countermeasures while the Chinese boats wil have portholes at the bow and manual AA guns - therefore no rear AA radar. The model here is based on the INS NIPAT - an export version which had limited electronics, making the mast simpler!
Anchor - the model uses a Byers-type anchor about 1" long. I made one out of soldered tinsheet from the following shapes
Fittings
1 inch
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Ladder Rung
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The model uses a long prop-shaft - 14". I used a 9.5" tube with a 14" shaft and supported the prop end with a skeg
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Make the rear radar dome from a cut-down Kinder Egg or turned from solid balsa to the size shown.
The Kinder Egg can be mounted with a bolt and two thick washers as indicated.
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Mushroom vents are about 0.3" round, and 0.15" high. I made mine by cutting off the dimples from a sheet of pills, and gluing these domes onto a short length of dowel
Hatches are simply1/2" squares of balsa with a 0.7mm wire handle. Wire is also used for ladder rungs, and railings The full-size boat has 2-ball railings all around the deck edge - use 20mm height commercial ones for the model.
front
side
hatch
EezeBilt OSA Missile Boat - Page 18 of 19
The prototype rudder was about 1.5" x 1", and shaped like the full-size version as illustrated. The actual full-size uses three props with three very small rudders of this odd shape - in practice any shape will be fine...
Bollards should be about 1/2" long and 1/4" high. I make mine out of suitable-sized nails with a brass tube around them, soldered into a brass strip, as shown.
Fittings
1 inch
EezeBilt OSA Missile Boat - Page 19 of 19
The top of the OSA superstructure has a wide variety of aerials and other equipment mounted on it, depending on the services the boat supports. Examine web pictures of OSAs and personalise your boat as you wish!
Life
raft
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Ae
ria
l
Doors
Ladders
Re
el
Ve
nt
vents
OSA Deck Layout
Win
ch
Pe
risc
op
e
An
cho
r
Ladders
Doors
Ha
tch
Bo
llard