K 1 A M O S - KK EezeBilt Boat Kitseezebilt.tk/OSA-1.pdf · lot of fittings and figures of this size can be bought commercially. Incidentally, the boat is quite ... A number of detail

32" Missile Boat

OSA M

K 1

F5B

Grain

Grain

F1

A

F3B

F2A

F2B

All material 1/8 hard balsa except where indicated

F3A

1 inch

See www.eeezebilt.tk for more details

F1B

Released free under Creative Commons copyright CC BY-NC-SA

F4A

EezeBilt OSA Missile Boat - Page 1 of 19

F5A

F4

B

http://www.eeezebilt.tk

F7A

Grain

1 inch

F8A


TRANSOM

align on t his l ine

j oin 1

BOW SHAPER A




F7B

F6B

F8B

F6A


j oin 3



Grain

1 inch


al ign on t his l ine




j oin 5

j oin2






j oin 5


1 inch

Grain


j oin 3

j oin 2

j oin 4

j oin 6



Grain

1 inch



j oin 4

j oin 6





Grain





Grain

1 inch


See www.eeezebilt.tk for more detailsReleased free under Creative Commons copyright CC BY-NC-SA




Grain 1 inch






All material 1/16 hard balsa except where indicated EezeBilt OSA Missile Boat - Page 8 of 19

Grain




1 inch






Grain

1 inchal ign on t his l ine




Grain

1 inch







1 inchGrain



Released free under Creative Commons copyright CC BY-NC-SA See www.eeezebilt.tk for more details


1 inch


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




Note that sides are handed for a

sloping deck. Be sure to m ake one

left and one right !


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



Missile housing front b

Front Missile

Form er front


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






1 inch



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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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



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.


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


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



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


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


Yugoslav

Border

Guard

Somalia

Egypt

Soviet Naval Banner

India Naval Ensign

Chinese Naval Ensign

North Korea Naval Ensign

North Korea

A selection of flags of some operators of the OSA-1 Missile Boat. There

were many others...

Documents

K 1 A M O S - KK EezeBilt Boat Kitseezebilt.tk/OSA-1.pdf · lot of fittings and figures of this size can be bought commercially. Incidentally, the boat is quite ... A number of detail