Model Shipways H.M.S. Bounty's Launch 1789 Instruction Manual Download Page 18

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1.  Shaping and tapering masts and spars.

Details of all mast and spars with dimensions are shown on plan
sheet 5.

Beech dowels are provided for the masts and spars but require
shaping and tapering. Being round, a dowel is difficult to taper.
The best approach is to first cut, plane, or file the dowel from
round at maximum diameter to square at the ends, then to eight
sided, and perhaps even 16 sided. Now sand or file it round. The
process is illustrated on plan sheet 5.  This approach prevents turn-
ing a dowel into an oval. If the taper is very slight you may not be
able to cut it square at the end. Try to cut the taper on four sides
down to the approximate diameter, then sand round. Although a
little tricky, another way is to chuck a dowel into an electric drill or
lathe and sand in the taper.

The cleats on the masts are made from the 1/16 square stock pro-
vided.  The easy way to attach these is to cut the stock longer than
required, glue to the mast and then trim them to length and carve
them to the tapered shape shown.  The 1/16 stock is a little too big
to be scale so slim the cleats down a bit in the carving process.

2.  Sail making

Newcomers to the nautical world should learn the following 
rigging terms used on the plans and in instructions. Only those
terms applicable to this model are mentioned. For more nautical
terms refer to the books in the bibliography.

Sail terms:

Each edge and corner of a sail has a name. On a fore

and aft sail as we have for this model, the top is the 

head

, bottom

the 

foot

, aft side the 

leech

, and forward side the 

luff

. The lower

forward corner is the 

tack

, aft lower corner the 

clew

, upper 

forward corner the 

throat

, and the aft upper corner the 

peak

. A 

triangular sail is similar, but the upper corner is called the 

head

. It

has no throat or peak.

Halliards or halyards:

Lines for raising and lowering a sail, boom,

gaff, or flag.  For gaffs, the outer halliard is the 

peak halliard

. At

the gaff jaws is a 

throat halliard

, named for the part of the sail it

operates. 

Downhauls, outhauls,

and 

inhauls

drag a sail along a

boom or up and down a stay.  The launch model is very simple
having only a foresail halyard and a mainsail halyard.

Blocks:

Wooden or metal shells with 

sheaves

(pulleys) for 

handling lines. A 

purchase

(tackle) consists of several blocks and a

line to provide a mechanical advantage for handling sails and spars.

Jig tackle

is a term describing a tackle at the deck end of a rig.

The launch model has only two blocks for the halyards.

Sheets:

Lines holding the lower corners of a sail or boom. 

Reef bands:

Horizontal reinforcing bands on a sail. They have

short lengths of rope called 

reef points

. In heavy weather, sailors

tie the reef points to the boom to shorten the sail.  In the case of
the launch, the sails would have been reefed to the spars (lugs).

Material:

Sailcloth must be lightweight, yet fairly opaque. Tightly

woven cotton is acceptable and provided in the kit by Model Expo. 

The making of sails is a controversial subject among ship modelers.
The controversy arises over the fact that real sails are sewn but it is
impossible to create scale stitchery.  Also scale woven fabric does

not exist.  Even the smallest stitch that can be made is grossly out
of scale.  This fact is just simply accepted by some as an inevitable
fact and they prefer the look of sewn sails in spite of over scale
stitches and fabrics.  Others devise various methods to attempt to
make sails look realistic on a model.  Two methods are presented
here, the sewing method and a simplified method wherein the
seams, hems, and reinforcements are represented by simple pencil
lines.  The latter method is illustrated on plan sheet 5 and is self
explanatory.  The discussion that follows illustrates the methods of
sewing sails.

Sewing Aids:

Visit a fabric shop and purchase a bottle of 

Fray-Chek.

Running or brushing it along the edge of the cloth 

prevents the material from unraveling when cut and produces a
sharp edge. Apply it to the sail before rolling the hem, on in the
case of the simplified method before cutting out the sail shape.

Stitch-Witchery

and 

Wonder-Under

are basically the same product.

They are heat fusible bonding tapes. Stitch-Witchery comes in a
roll and is bond sensitive on both sides. Wonder-Under comes in
sheets with a thin, paper backing on one side. To join two pieces,
simply place a strip between them and iron. Use Wonder-Under
for tabling (hemming) the sail if sewing it is too difficult.

Preparation and sewing:

Wash sailcloth several times to 

pre-shrink it. Many modelers prefer to alter the stark white color 
of the material by dying or staining it.  Some use tea; others use 
commercial products such as Rit dye.  If you are going to color
your sail material do this before applying a fray check product.
When dry, iron the cloth, but be careful not to scorch it. Next,
lightly draw the seams and hem (tabling) lines in pencil, and then
sew the seams using light tan cotton thread. The stitches look best
when the thread is a color close to the color of the cloth.  A sewing
machine makes fast work of the project. Practice on scrap cloth.
Balance the needle thread tension so it doesn't pucker the material.
No reinforcement patches are required. Instead, simply stitch lines
to represent corner reinforcements, reef bands, etc. If sewing a 
double seam, be sure the two lines are parallel. Those who lack the
Betsy Ross touch can substitute a single seam. 

When done, iron the sails. Be careful not to burn them. Next, cut
the sail shape using Line A shown on plan sheet 5.  Fold the hem,
iron it flat, and sew as close to Line B as possible. Tuck the ends
and hand-stitch the corners. The sail is now ready for stretching.

Stretching the Sails:

This step assures the sail's proper shape, since

sewing may have altered it. Using the original pattern, trace the
sail's outline onto a piece of paper. Place the paper on a solid, but
porous backing, such as a wood or cork board. Now wash the sail
again and lay it over the outline. Stretch the wet material to the
sail's outline, then secure with stick pins through its outer edges.
When dry, the sail will have resumed its proper shape. Iron it one
more time.

Boltropes:

Although boltropes can be omitted, they add quite a bit

to a model.  Plan sheet 5 shows the process.  Bolt ropes go all the
way around the sail and form loops at the corners called cringles.

Reef points:

Install reef points along the reef bands.  To get the

reef lines to hang naturally, moisten a length of line with glue and
hang it with a weight to straighten and stiffen it.  Cut equal lengths

STAGE 5:

MASTS, SPARS, SAILS AND BOAT GEAR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for H.M.S. Bounty's Launch 1789

Page 1: ...y Model Shipways Inc Hollywood Florida Technical Characteristics Scale 3 4 1 0 1 16 Overall length 17 1 4 438 3mm Height from bottom of keel with masts 14 3 8 365mm Beam 5 3 8 136 5mm MODELING THE H M S BOUNTY S LAUNCH 1789 Kit design instructions and prototype model by Bob Crane 2006 Model Shipways Inc ...

Page 2: ...The last was the fate of three of them Knowledge of the extraordinary adventure that followed is due to the fact that Bligh kept a log and submitted it to the admiral ty after his return to England It recounts the events of the 4000 plus mile small boat voyage that took place after the mutiny and recounts as Bligh notes a voyage that was one of the most extraordinary nature that ever happened in t...

Page 3: ...haping and Tapering Masts Spars 18 2 Sail Making 18 3 Blocks 19 4 Lines 19 5 Boat Gear 19 Stage 6 Displaying Your Model 20 Bibliography 20 Table of Contents Table of Contents crowded into this small craft navigating through tall seas under sail The model construction method is in the traditional fashion for carvel planked hulls of this size upside down with a form or mold at each station The frame...

Page 4: ...t imagine performing the task and use logic 3 Understanding Hull Lines Beginners may not be familiar with the following hull lines Buttock lines are vertical longitudinal planes cutting through the hull Waterlines are horizontal planes and Sections are transverse vertical planes Diagonals are planes cut almost perpendicular to the station lines These lines define the hull s shape and are used by t...

Page 5: ...ng fine wire and strip metal H Sandpaper 1 Fine medium grit garnet or 100 to 220 aluminum oxide 2 400 wet or dry sandpaper 3 The sanding sticks sold for fingernail care are excellent and very handy These have medium and fine sandpaper and a foam core great for most sanding tasks I Sail Cloth Light weave cotton or linen cloth if sails are desired For furled sails a light material such as Silkspan i...

Page 6: ...be careful to avoid runs Spray on several light coats Most paint manufacturers have special thinners for their various paint lines Follow each manufacturer s recommendations Mixing brands is not a good idea because they may not be compatible Sometimes however no other option exists If so apply each brand separately and allow to thoroughly dry before adding the next Always test to make sure the fin...

Page 7: ... shown in photo 1 above will help you to align the pieces Assemble and glue together the 3 pieces stem keel and sternpost Note that the sternpost is a single piece of laser cut 3 16 thick basswood Do this over the plans on sheet 2 as shown in photo 2 below It is more important that the inside curve of the assembly match the plans than that the scarf joints are a tight fit Any gaps in the joints ca...

Page 8: ...ngraved rabbet line makes this a simple task Take care in the cutting to preserve the crisp engraved rabbet line Mark the rabbet line on the sternpost and carry the rabbet groove through the sternpost as shown on sheet 2 A pattern for marking the tapered portion of the stem is provided on sheet 2 Your options here are to cut the pattern out of the plans or trace the pattern on tracing paper or hav...

Page 9: ...ious when we begin to bend on the frames Molds 1 2 and 3 require the most material removal in the fairing process Fitting the keel the keel alignment tabs Once you are satisfied with your fairing test fit the keel assembly to the jig structure Molds 1 2 and 3 may require trimming a bit in way of the keel assembly to allow it to lie directly on the center keel Align the frame heel notches in the ke...

Page 10: ...re ideal Clamp the iron upright in a vise While the iron heats soak the strip of wood in tap water Some model ers prefer bending around the tube near the handle it s not as hot while others use the shank Move the strip back and forth against the iron Its heat turns water into steam and drives it into the wood The trick is to wait until you feel the wood wanting to yield before starting the bend Be...

Page 11: ...tock in the kit Cut a supply of 3 32 square frame stock to about 4 1 2 inches length This length is suitable for all frames except molds 15 and 14 which require a slightly shorter length Frames are bent by hooking the keel end under the keel in the sockets about halfway through and then wrapping the frames down over the mold and clamping them below the sheer tabs Refer to sheet 2 hull con structio...

Page 12: ...e on the hood end pattern Photo 12 making clamps from binder clips Photo 13 plank hood end locating pattern The garboard must be carefully aligned as shown on sheet 2 The garboard twists quite a bit where it meets the rabbet requiring more care to locate it properly Study the illustration on sheet 2 showing the placement of the garboard A straight edge aligned along the mark on the pattern may hel...

Page 13: ...ing is done time to sit back and admire your work You may wish to rough sand the hull at this point while it is still attached to the building jig Remove the pins from the transom and the dowel from the stem alignment blocks Using your knife work the blade in between the frames and the molds and pop the spot glued frames from the molds If you have not glued the hull to the building jig somewhere t...

Page 14: ...rboard for a total of 52 Now is the time to clean up any glue gobs Very little of the frames are visible in the finished model Review the plans and photos and concentrate on those areas of frame and plank that will be visible 2 Installing the sheer clamps The sheer clamps are 3 32 x 3 16 basswood strips that run along the sheer inside of the frames Refer to sheet 3 and photo 19 Prepare a landing f...

Page 15: ...ep requires a little more shaping as shown on the plans Its position is important as this will determine the relationship between the fit of the bow grate fore thwart and the foremast rake angle if any The sources used to design this model show the mast rake angle with the vertical both in a slightly raked and no rake configuration The choice is yours The prototype model was built with a slight ra...

Page 16: ... match the hull paint scheme The water line can be marked by turning the hull upside down and blocking it up on a flat surface A pencil clamped to a vertical member at the appropriate height is used to mark the location of the water line on the hull It is better to make a few spaced marks say every inch or so than to attempt to scribe the entire line 7 Mounting cradle A ship s boat like the launch...

Page 17: ... the rudder installation by locating and installing the upper gudgeon on the transom Drill and install with brass pins The pins should come out under the aft thwart and thus are not visible Fit the upper pintle to the rudder and engage the pintle pin in the gudgeon Clamp the pin tle to the rudder remove and drill through a pin hole Place a pin through the holes and put a slight bend in the protrud...

Page 18: ...be made is grossly out of scale This fact is just simply accepted by some as an inevitable fact and they prefer the look of sewn sails in spite of over scale stitches and fabrics Others devise various methods to attempt to make sails look realistic on a model Two methods are presented here the sewing method and a simplified method wherein the seams hems and reinforcements are represented by simple...

Page 19: ...bly carried with them some personal gear likely carried in bags There was sufficient extra canvas aboard for the rigging of weather cloths around the boat to increase the freeboard He also had sufficient extra rope for the rigging of shrouds to the masts The boat as issued had no shrouds A grapnel for anchoring was aboard Boat gear supplied in the kit and illustrated in the photo below may be arra...

Page 20: ...Jim Roberts Hollywood FL Model Shipways Inc 1987 Topnotch publication on how to plank ships from all periods Designed to help the kit builder if the plans don t show a planking scheme Ship Modeler s Shop Notes edited by Merritt Edson Jr and others Nautical Research Guild 1979 Valuable collection of shop hints and articles extracted from early issues of the Nautical Research Journal Many quality il...

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