Components of a museum-quality model

Sailmaking
 

Latin sail
 
Except possibly in small craft in ancient times sails were not made out of a single piece of cloth, but were assembled from several strips, known as the cloths - this method produced sails which were considerably stronger and less liable to tear . In ancient times the cloths were sometimes assembled crosswise, sometimes lengthwise, and some sewn up from rectangular pieces in both directions. Since the early Middle Ages the cloths have always been joined vertically, i.e. lengthwise.

   When sewing up the individual cloths the traditional starting point was the extreme right-hand cloth -seen from the rear -with its left-hand edge taken upward to form the seam. The second cloth was laid on top of this, the right-hand seam at the bottom, the left-hand seam again taken upwards etc. Then the whole thing was oversewn fromiront and back to hold it all together. This procedure of making a sail from individual cloths is far too complex for the modeller, of course, especially as the same effect can be achieved by much simpler means. The material for the sail is cut with generous excess width, and the seams of the cloths are folded in an S-shape, noting that the visible seam edges always face the right. The cloths themselves were up to 4ft wide in the early Middle Ages, 32 to 36ins wide in the late Middle Ages, around 28ins wide from the middle of the 16th century to the beginning of the 18th century, and from then 24 or 18ins; the width of the seams fell over the same period from 1½ to 1in.


  Sewing the seams is more difficult than laying out the strips. Start by pinning the seams in place, and ironing them. It is also advisable to glue the seams together carefully, although it is essential that the glue does not penetrate through the material. It does not matter whether there is a seam or cloth in the centre of the sail, but the strips should not become too narrow at the sides.

Originally the seams of the cloths were sewn with a double line of oversewing. However, as the seams of a 1: 48 scale model are only ¹/³²ins wide, this process is not feasible for the modeller. He has the choice between just one row of oversewing or a double row of running stitch, as the drawing bottom right shows. However you do it, these stitches must be as even as possible (use a sewing machine!), and as small as possible. The sewing thread should be light brown, that is, a little darker th~n the sail itself, if the seams are to show up properly. The next step is to cut the sail to the size of your template - do not forget the seam or tabling allowances. Fold the edges of the sail over, pin them, carefully glue them if desired, and finally sew them up with a double row of running stitches. The tabling was about 4ins wide. The leeches are sewn first, followed by the foot and head of the sail. The linings are now sewn on the reverse side of the sail; they were themselves often made up from separate cloths. Oversewing is used again, as for the cloths. Only the foot lining was attached with running stitches, like the tabling. The last stage is to attach the reef bands, using running stitch.

  All the eyelet holes - that is the holes through which the head lacing and reef points were passed -were sewn round. This task is unnecessary on a model, however, as the eyelets are hidden by the knots of the ropes. It is best to leave the eyelet holes out altogether at this stage.

 


 


Lateen sail with bonnet
 

Arab dhow sail
 


 


 


 

Block, block, glass block, block tax, ad block, f block, block breaker, block pop ups, block island, butcher block, quilt block, the block at orange, block d, pop up block,  block popup, the block, building block, block scheduling, mega block, block h online r, big block, writer block, power block, small block chevy, wooden block, big block chevy, engine block, block retaining wall, block and tackle, free quilt block pattern,
 

 
A
 
B
 
C
 
D
 
E
 
F
 
G
 

 
Rope   dia.                      
 
Height 
 
Width
 
Thickness
1
Thickness
2
Thickness
3
Sheave
dia

 
Swallow   
 
Strop  dia
 
6 72 60 40 53 66 33 7.2 6
8
 
96
 
80
 
53
 
70
 
88
 
44
 
9.6
 
8
 
11
 
132
 
110
 
73 97
 
121
 
61
 
13.2
 
11
 
13
 
156
 
130
 
86
 
114
 
143
 
72
 
15.6
 
13
 
16
 
192
 
160
 
106
 
141
 
176
 
88
 
19.2
 
16
 
19
 
228
 
190
 
125
 
167
 
209
 
105
 
22.8
 
19
 
25
 
300
 
250
 
165
 
220
 
275
 
138
 
30.0
 
25
 
32
 
384
 
320
 
211
 
282
 
352
 
176
 
38.4
 
38
 
38
 
456
 
380
 
251
 
334
 
418
 
209
 
45.6
 
44
 
51
 
612
 
510
 
337
 
449
 
561
 
281
 
61.2
 
57
 
63
 
756
 
630
 
416
 
554
 
693
 
347
 
75.6
 
76
 
76
 
912
 
760
 
502
 
669
 
836
 
418
 
91.2
 
89