NRG Rigging Project by tlevine

[tlevine]

Thanks, Tom.  Sorry for the delayed response but I was on the road and without internet access.

[bdgiantman2]

I am looking forward to getting my hands on this kit after it gets released in several months, thanks for demonstrating this for all of us on here.

 

Brian D

[tlevine]

Most kits come with deadeyes and partially completed chains.  Usually, the upper link (the link that goes around the deadeye) is pre-formed, with the bottom cut for insertion of the deadeye.  Wire is provided for the builder to form the other two links but the entire assembly has very little strength and the cut ends of wire are ugly.  The only way to make this assembly stronger and better looking is to solder the links closed.  I prefer silver soldering, even though regular soldering will give sufficient strength.  The benefit of silver soldering is that the metal is fused together rather than connected by a dissimilar metal, tin.  This makes it easier to bend the part without worrying about the solder joint breaking.  The downside is that there is a learning curve and the tools are more expensive.  Silver solder also blackens well.  There are also low melting point silver bearing solders (Tix) which can be blackened. 

 

The measurements for all the parts of a British warship were determined by the Admiralty.  There are reference books that contain this information such as Steel’s Tables.  An easily read version of the tables is sold in the NRG store.  The main mast diameter is given on the plans as 18”.  Using the information from the tables, I determined that the main stay is 9” and the shrouds are 5.5”.   Lines are measured by their circumference. The diameter of the deadeye is 1.5 times the size of the shroud or stay it is attached to, in this case 8 ¼”.  A spreadsheet comes in handy in determining all the measurements.

Let me start by saying that my metal work has a bit to be desired.  The chains are made from 1 ¼” wire, which is 22 gauge.  I temper the wire by drawing it through a gas flame until it glows red.  This makes the wire more malleable and removes any factory applied coating.

 

The deadeye chain is the same length for all the deadeyes.  Make one and use it as a template for the others.  I wrapped wire around the deadeye, leaving long tails, and inserted this into the slot in the channel.  The tails were cut long enough to be able form the loop below the channel.  I removed the deadeye and applied a finish. 

The lower links are all the same length.  From the plans I knew that the toe of the lower link is bolted 5” below the top of the wale and that its overall length was 9”.  Two T-pins were inserted into the soldering board and the wire was wrapped around them, with the cut ends on the side.  The middle link is different for every shroud because each is at a different angle to the mast as seen in the two pictures below.  The link becomes longer with greater angulation of the shroud.  You can see the difference in the shroud angles and how this would affect the length of the middle link.

To determine the angle of the chains, I put masking tape on the hull above and below the channel.  A loop of rope was placed over the mast head and inserted through a slot in the channel.  The angles made by the shroud were transferred to the tape.  I dimpled the wale where the toe of the lower link and the lower preventer chain bolts will be located and removed the tape.

A hole was drilled through the wale where the toe of the lower link would later be bolted.  The lower link and deadeye were temporarily installed. The length of the middle chains was determined by trial and error.  With the deadeye and lower link in place, I formed the middle link from rope the same thickness as the wire and transferred those lengths to wire.  I formed the middle link and soldered it closed, keeping the joint on one of the long sides.  Then I inserted the lower link through the middle link and soldered it. 

A T-pin was pushed into the soldering board and used to form the lower link toe.  The lower link is also bent at the toe, allowing it to lay flat against the wale. 

Finally, the wire for the upper link was passed through the middle link and  soldered.  The deadeye was inserted into the loop and the wire was crimped around it to fit into the channel slot, placing the solder joint in the slot camouflaged it.  

And here are the ten chains, ready for blackening.  The blackening chemical did not damage the wood deadeyes. 

 

After blackening, the chains were installed.  I have a piece of wire temporarily holding the lower link to the wale. 

The preventer plate prevents the bolt securing the lower link from going all the way through the toe. It was made from square bar stock that was forged to the correct shape.  Mine are made from sheet brass, cut and filed to the correct shape.  Just like the middle links, they varied in length. The top of the plate makes a step over the bottom of the lower link toe to cover it. To determine the distance between the bolt holes on the plate, I measured the distance between the toe bolt and the previously marked lower preventer plate bolt and added the diameter of the wire the link was made from.  The sequence is shown in the drawing below. After they were finished, they were blackened and installed.  

To hold the upper links in the channels, a strip of molding was placed over them.  Next up, the rigging begins.

 

[bdgiantman2]

Toni, I don't know if this kit will be including any of the deadeyes on the mast platforms (I've always only known them as crowsnests),  but I've heard that the deadeyes get smaller in diameter as go higher up the mast. Was this typical practice as I don't know???

[tlevine]

Yes, the kit will have the lower topmast deadeyes.  And yes, they are smaller.  As I stated in my post above, "The diameter of the deadeye is 1.5 times the size of the shroud or stay it is attached to..."  The topmast shrouds are 3.5", in contrast to the lower shrouds (5.5").

[bdgiantman2]

25 minutes ago, tlevine said:

"The diameter of the deadeye is 1.5 times the size of the shroud or stay it is attached to..."  The topmast shrouds are 3.5", in contrast to the lower shrouds (5.5").

Thank you for this information,  don't know how I missed that before.  So then the royal mast, on a real ship, would be 2" approximately in diameter if same size rules apply??

[tlevine]

Everything depended on the size and type of ship.  This little ship only had a lower mast and topmast.

[tlevine]

It is time to start rigging the mast.  Some lines are served with an additional layer of line wrapped around them to protect them wherever they would be at risk of damage from rubbing.  On this model, the pendant of tackles, the foremost shroud, the other shrouds above the catharpins and the jeer block strop are served.  Because this is a cross-section, the main and back stays will not be installed but they would also be served.  Standing rigging is protected from water damage with a tar-like compound.  This resulted in a dark brown appearance to the lines.  The running rigging was not protected and so was a natural hemp color.  On this model, the burton pendants and shrouds are standing rigging;  everything else is running rigging

 

Rope sizes are calculated from the diameter of the mast.  The kit contains a table with the dimensions for the various ropes, based on the diameter of the mast.  To measure the diameter of the line, I wrap it around a dowel twenty times, measure the width of the wrapping and divide by twenty.  This is much more accurate than  trying to measure an individual line. The first rope to go over the masthead is the pendant of tackles.  On the topmast, this line is referred to as the burton pendant.  This rope is completely served, and has a thimble on one end.  The other end is spliced to its opposite, resulting in the rope in the diagram below.  Where the red and blue lines meet are splices.  The pendants extend to approximately two feet below the hounds.  They were used with a tackle to raise and lower heavy weights.

To properly rig a model there is no substitute for the appearance of a served line.  I use 6-0 fly tying thread, which can be purchased at a sporting goods store or online.  I start by running thread, from left to right in this case, into the depression between the rope strands (worming), smoothing its surface (the yellow areas seen in the drawing below.  Then I serve the rope from right to left. 

I find it easier to serve short segments of rope, such as this, on the same piece of rope and then cut them apart.  I served the rope, leaving approximately six inches of serving thread for the splices (red circles).

Then I made a diagonal cut, following the lay of the rope ¼” away from the end of the serving.  The unserved line was held against the other line where the splice would go and I wrapped the two lines with the left-over serving thread “splicing” them together.  I continued the wrapping a few more twists to smooth out the transition and tied it off.  A tiny bit of dilute glue held everything together. The pendant was put over the mast head and onto the bolsters.  It was marked on each leg, two feet below the hounds and removed from the mast.  I used blackened 1/16” ID brass tubing for my thimbles.  The mark was placed on the side of the thimble and the pendant was wrapped around it.  For simplicity I used a simple seizing to secure the thimble and put it back on the mast.

 

 

 

 

[tlevine]

The shrouds were installed next.  The starboard shroud is always placed first and are they are installed from fore to aft.  Because this ship has an odd number of shrouds, the first shroud is single; the rest are double.  The first shroud is served its entire length, protecting it from the lower sail.  The starboard and port first shrouds are secured to each other with a cut splice, just as was done with the pendant tackle. 

The remaining paired shrouds are served where they could be chafed: the center 20-25%, based on the ship being rigged.  I cut a two foot piece of line and marked the midpoint and 10% the length of the shroud on either side of the midpoint, in this case 1.2”.  This is the area that was served.  The doubled shrouds were secured with a throat seizing tight to the mast head.  The lower ends of the served portion of the shrouds should be level when they are installed.  This means that the throat seizing is not exactly in the middle of the served section, but offset enough to allow this to occur.  You can see this in the next picture.  The aft shroud seizing is slightly longer than the fore.

The shrouds were installed, alternating starboard and port, taking care to stack them neatly.  The topmast is temporarily installed in the following pictures.

 

The next step was to attach the upper deadeyes to the shrouds.  The distance between the upper and lower deadeyes is a constant.  The easiest way to ensure this is to make a spacer jig.  You will actually need ten, five for each side.  The picture shows two jigs.  The one on the left is made by soldering the two wires together.  The other one uses twisted wire.  The prongs go through the two inner deadeye holes.

 

I started by inserting the prongs through the upper holes of the lower deadeye and bent the wire around the back of the deadeye to prevent it from coming out.  Next, I wrapped the shroud around the upper deadeye and adjusted the shroud length so that the upper deadeye could be threaded onto the jig.  These shrouds are cable laid (left twist), so the short end of the shroud went on the aft side of the shroud.  If the shrouds were rope (right twist), the short end would be on the fore side.  I secured the shrouds to the deadeyes with alligator clips.  I find it important to leave the model alone for several hours at this point.  This allows the rope to stretch and helps prevent sagging in the future.

The upper deadeyes are secured with three seizings.  A cross seizing was placed where the shroud crossed over itself next to the deadeye.  I  marked the location of the cross seizing on both sides of the shroud and removed the deadeye.  If left in, the loop is too big.  After making the cross seizing, the deadeye was reinserted and the middle and end round seizings were added.  The drawing shows a round seizing. 

And the picture illustrates the relative location of the seizings, using white thread to make it easier for you to see.

Brown paint was used to represent the leather cap at the end of the shroud.

The shroud lanyards were installed next.  They are considered running rigging and are not tarred.  A knot was tied at the end of the lanyard and it was inserted through the back of the upper deadeye in the foremost hole.  After reeving it through the deadeye, excess line was kept for tying off.  Once they were done, the lanyards were gradually tightened, making sure the mast was straight.  Just like with the shrouds, I gave it a few hours to allow the line to stretch.  To tie off the lanyard, the rope was passed between the shroud and the deadeye (below left) and looped under the last line of the lanyard (below right).  The lanyard was wrapped around the shroud a few times and finished by inserting it under the last loop.

[tlevine]

The futtock staves were made from 3” served rope and are located as far below the trestle trees as the top of the mast is above the trestle trees, approximately seven feet.  For ease of installation, I used served 24 gauge wire, rather than rope.  They were lashed to the shrouds.  The picture on the left shows the lashing in white for clarity and the finished product on the right.

 

And now it is time for the dreaded ratlines.  There are some lines on a ship that are a do not change with the size of the ship, such as the footropes and ratlines, both of which must hold a seaman’s weight.  The ratlines are made of tarred 1.5” rope.  At this scale, I simply tied, rather than lashed, them to the outer shrouds.  They are secured to the inner shrouds with clove hitch knots, a drawing of which is below.  This picture is also from The Boy’s Manual.

Ratlines are spaced 12-15” apart and are parallel to the waterline.  The easiest way to keep them even is to make a line jig.  There is a tendency to pull the shrouds inward as the ratlines are added.  I like to secure a brass rod or stick to the outer shrouds to keep them straight.  This is my setup.  The clips are holding the line jig in place.  The ratlines are parallel to the waterline, not to the deck. After several hours, 220 knots and fifteen scale feet of rope, the ratlines were finished. 

 

Catharpins are ropes with an eye at each end which extend across and are seized to the shrouds at the level of the futtock staves.  According to Steel, sloops were not equipped with catharpins but I included them in the kit to illustrate their construction.  I made them from 22 gauge wire with a loop on each end.  As there is no tension on them, I did not solder the loops closed.  The catharpins are served and the ends are painted black to simulate the eye splice.    The first catharpin is located just aft of the mast and the other two are spaced out evenly along the futtock stave.

This completed the standing rigging of the lower mast.  As mentioned earlier, because this is a cross section model, lines that would not terminate on the model, such as the stays and backstays, were omitted.

[bdgiantman2]

Great demonstrating this project, Toni, your model is looking fantastic! With doing the lanyards, as well as cross seizing and others, is it easier doing these with a curved sewing needle or a straight sewing needle?

[druxey]

An excellent primer for learning rigging techniques, Toni! 

[rlb]

Thanks for this timely tutorial, Toni.  It is exactly where I am at with my Oneida.

[Loracs]

A great tutorial...  very timely, I'm just starting the ratlines on the Revenge.  Thanks for the tips!

[tlevine]

I use a straight needle with a blunt tip.  This is the kind typically used in counted cross-stitch.  

[tlevine]

I made the top by laminating two layers of 1/32” basswood sheeting, each at 90 degrees to each other.  The kit will have a plywood template to trace the shape onto the basswood.  This gave the correct thickness and added strength.  On a real ship, the top was made up from tongue and grooved wood slats.  I drew the edges of the slats onto the top with a #11 blade. 

The top’s rim was made next.  I used template to trace the curved section onto sheet basswood.  The rim overlaps the edge of the top so draw another line onto the basswood 3.5” outwards from the first line.  I made a second template by outlining the top and drew another line 3.5” inwards from the edge of the template on the curved edge and both sides.  The template was trimmed at the inner line (see arrow below) and positioned on the basswood sheet 7” inwards from the first line.  This gave me the shape of the curved part of the rim.

  

The rim was glued onto the top and weighted down until dry. 

The front edge of the rim is raised.  I used a 3 mm chisel to remove one-third of the thickness of the rim.  If you do not have a chisel, you could use a sanding stick to shape the rim.  The inner edge of the rim was feathered so that only one-third the thickness was left where it met the top.

The side pieces also they extend 3.5” beyond the edge of the top and their thickness tapers to one third the thickness on its inside edge.  Because this piece is straight and with the grain, the tapering was done before it was glued to the top.  When you turn the top upside down, you can see the overhanging edges fore and both sides.

  

The top has multiple slats extending from the edge to the center opening.  The number depends on the size of the top.  I have penciled in the locations of the slats for this top (see two pictures down).  The slats that abut the curved portion of the rim have an unusual shape.  They are cut away to allow them to rest on top of the rim and tapered to a point as they approach the center opening.  Since they are all slightly different in shape, they were made individually.  The slat does not extend over the raised edge.  In the next picture I have incorrectly cut the side edges with a 45 degree bevel.  It should be a straight cut.  

The side slats pass through openings cut into the rim, and taper towards the center opening.  I laminated six pieces of wood together and shaped them into a triangle.  The height of the slat is flush with the rim.  The slats were unglued, openings were cut into the rim and they were installed. 

The aft slats are also triangular and extend to the edge of the top.  Lastly, a gunwale was glued on top of the aft slats and the side rim.  Take a look at this much later picture to see the relationships between the gunwale, side rim and aft slats.