Kathryn - a Thames Bawley - 10

Started by flaxbybuck

0 updates 11 likes 8 comments
flaxbybuck Opening post

Kathryn - a Thames Bawley - 10

About the mainsail, topsail and large staysail.

The gaff is lifted by the uphaul (Pic 1) with the halyard being tied off on a mast cleat (Pic 2) Note this is not how the real thing would be done, but is my method that works on a model.

There are a number of cleats attached to the foot of the mast. These are glued and attached using long screw eyes ( see earlier blog)

Pic 3 shows the gaff 'spreader' (my term) the halyard passing through various pulleys before travelling down the mast to a cleat (Pic4) More about pulleys in the next Blog.

The following photos show the principle sails and how they are attached. I have made a number of other sails not shown here, including a smaller main sail and topsail, a smaller staysail, a jib and a flying jib. These can be set to suit different wind strengths.

The mainsail (pic 5 ) is an old cotton sheet stained with tea. I have sewn reinforcement patches into the places that will come under stress or tension, and bias binding onto all edges. Metal eyes or hooks are then sewn into the clew (Pic 6), the tack (Pic 7), the throat (Pics 8 and 9), and the peak (Pic 10 ). Pic 11 just shows how the bias binding is used to finish the sail edges.

Attachment points are shown in the next few pictures. Pic 12 the tack eye, Pic 13 the throat eye, Pic 14 the peak uphaul and Pic 15 the clew outhaul. Pic 16 shows the main sheet emerging onto the deck, passing through an eye on the travel horse and heading for the main boom.

The topsail is shown in Pic 17, already stained with Colron dye, corners reinforced and bias binding sewn on. The following five pictures show the topsail foot, clew and peak in detail.

Pic 23 is the large staysail, with the tack, clew and head shown in the final pictures.

None of the methods used for attaching these sails is authentic. My aim is to be able to sail the boat and enjoy seeing it on the water. I therefore need to be able to attach or detach the sails quickly at the pondside. I use a variety of attachments, principally eyes and hooks. I try to make these as neat as possible, and not detract from the appearance.

We often talk about 'passing the ten foot test', meaning if it looks OK when ten feet away, then it is OK. However, viewing these photos I can see just how poorly I have finished off sewing in the sail corners. There are too many ragged edges and untidy hand sewing. In future I must remind myself of this and do better. (Sounds like my school reports - 'must do better !')
Liked by Ray and AlessandroSPQR and
8 comments
  1. flaxbybuck
    Captain
    Thank you for your kind comments Alessandro. I really appreciate your advice and input.

    My approach to making sails has been one of continuing experimentation. As a working RC boat rather than authentic I have tried to save myself the work of sewing on bolt ropes and forming cringles. Whilst eyelets are the easiest way to create the fixing points they are too often large and obtrusive. However, I have managed to source and use some very small ones which I feel are just about OK (in my book), such as seen on my topsail. I am still working on other methods but have not yet found one I am happy with.

    I have no plans to add further to my sails so I won't be adding stitch lines or reefing points. So far these cotton sails have been quite satisfactory. I will not be using mast hoops on this boat, but I have thought of a method of using hoops whilst being able to detach the sail quickly, and I will be showing this on a future build blog about a schooner. The method I adopted for uphauling the gaff is not very good so I may yet adopt a single pulley method. (the correct double pulley would be fine on an authentic scale model, but unnecessary on this boat.)

    If you have any other observations I would be happy to consider them. 😉
    Liked by Len1 and AlessandroSPQR
  2. AlessandroSPQR
    Fleet Admiral
    Thanks Flaxybybuck for the precise and timely responses.

    Your experiments will also be useful to other people.

    When I studied the sailing system for my schooner I thought of leaving the single pulleys (which are not levers and do not reduce the effort required) to hoist only the lighter parts.
    I preferred to use the double pulley because in reality the effort to hoist the gaff was reduced (in fact it involved applying levers) and fewer sailors were needed for this operation.

    I agree with you, the single pulley to straighten the gaff is still fine and will improve the appearance. Even the most fussy people when they look at it will have nothing to say.

    As already said, I will carefully follow your work and your techniques.
    In the meantime, I'm taking advantage of your posts to also learn seafaring terms in English.
    You are very descriptive and this, in addition to liking it, is really very useful to me.

    I believe your ship will be beautiful to admire in a static manner as well as being a fully functional RC model.
    Liked by flaxbybuck and Len1

Sign in to comment on this update.

Delete this post?

It will be removed from the site.

Discard this draft?

Your draft will be deleted and cannot be recovered.

You have an unfinished draft

What would you like to do with it?