AnobiumPunctatum

Hopefully not to confuse the situation,  But here is a better image of Cheerfuls stem parts.  You are using the outboard plan.  This is from the inboard draft.  I have seen this arrangement on two other cutters but sadly these details are not shown on most cutter drafts.  The Alert is much younger also so this may not even be applicable.   
 
But I wanted to mention how all of the lines on the draft you posted are dashed for these elements.  On the inboard sheet however it shows the dashed lines as if they were parts cut for the other side of the stem only.  Meaning that the stem was intended to be cut in one piece and the two other elements used for the boxing joint and apron on the other side only.  That is ...if I am reading the draft correctly.   It seems unlikely that they could find such a large piece to make the stem like that.   So I agree with Ed that in all likelihood it depended on what wood they had on hand and probably ended up with a  much different "made up"  stem that may not have matched any of these choices.
 
So I simplified it a great deal for my project because I dont find all of these elements an attractive addition to a ship model anyway.  Its too distracting and busy.  In fact....you never see the separate pieces on almost all of the contemporary cutter models I have seen.  The stem is always one piece down to the boxing joint.
 

Daniel asked me to show how I get the different center points and radii for the construction of an frame. Please be in mind that there are a lot of  other steps necessary before you can start with the frame construction.

First let me refer to two articles which I think that they are very helpful in understanding the lines of an original drawing
1. David Antscherl: Understanding Eighteenth-Century Admirality Drafts, Nautical Research Journal Vol. 52, No. 2 Summer 2008
2. David White: Understandig Ships' Draughts, Model Shipwright No. 48 ff.
 
I made some screen shots during the construction of the main frame of the cutter.

After creating the "Breath Extreme" line in the Body-Plan, I define the Center Points for the Lower Height of Breath.


Next I determine the radii of the arcs, which don't have the center points in the original drawing (most of this arcs were drawn with French Curves).
The list gives the different values:
Lower height of breath: 72.53 first:          260.35 second:    straight third:         -319.9  

 
Next I calculate the center point of the first curve: I draw an arc with the radius 260.35 from the endpoint of my help line and a radius from the center point of the lower height of breath withe the radius 260.35 - 72.53 = 187.82. Then I draw a line from this center point to the center point of the Lower height of breath and stretchit to the circle of the Lower height of breath. Now you can draw a circle with the first radius.

 
Now I repeat these steps for creating the center point of the third curve. I draw to circles with the determined radius, one from the keel and one from en point of the help line.

 
Next I draw a straight line to both circles. There exist an Autocad function to do this, so nothing to construct for me .

 
At last I draw the frame. I start at the Lower height of breath. Then I draw the upper height of breath and complete the frame with the other arcs and straights.


I hope that this small description is helpful for someone.

Here is the modified drawing.
 

My new keel drawing is finished.

 
Next I will draw the frames and build the new bigger version of my keel

Daniel asked me to show how I get the different center points and radii for the construction of an frame. Please be in mind that there are a lot of  other steps necessary before you can start with the frame construction.

First let me refer to two articles which I think that they are very helpful in understanding the lines of an original drawing
1. David Antscherl: Understanding Eighteenth-Century Admirality Drafts, Nautical Research Journal Vol. 52, No. 2 Summer 2008
2. David White: Understandig Ships' Draughts, Model Shipwright No. 48 ff.
 
I made some screen shots during the construction of the main frame of the cutter.

After creating the "Breath Extreme" line in the Body-Plan, I define the Center Points for the Lower Height of Breath.


Next I determine the radii of the arcs, which don't have the center points in the original drawing (most of this arcs were drawn with French Curves).
The list gives the different values:
Lower height of breath: 72.53 first:          260.35 second:    straight third:         -319.9  

 
Next I calculate the center point of the first curve: I draw an arc with the radius 260.35 from the endpoint of my help line and a radius from the center point of the lower height of breath withe the radius 260.35 - 72.53 = 187.82. Then I draw a line from this center point to the center point of the Lower height of breath and stretchit to the circle of the Lower height of breath. Now you can draw a circle with the first radius.

 
Now I repeat these steps for creating the center point of the third curve. I draw to circles with the determined radius, one from the keel and one from en point of the help line.

 
Next I draw a straight line to both circles. There exist an Autocad function to do this, so nothing to construct for me .

 
At last I draw the frame. I start at the Lower height of breath. Then I draw the upper height of breath and complete the frame with the other arcs and straights.


I hope that this small description is helpful for someone.

Not much to show for the last few weeks.  Last week was devoted to the NRG meeting.  It was great to put faces to some new names.  Hope to see you again next year in Mystic.
 
I started the planking below the wales.  The first 6 rows of planking are anchor stock and the rest is standard planking.  The first strake is 3" thick at the wale, tapering down to 2".  The rest of the strakes are 2" thick.  I laid the first row of strakes full thickness and then tapered the lower edge after the second row of planking was completed.  The extreme fore and aft planks are dropped.  I marked out the landing spots for the planks terminating at the counter to prevent any uneven plank widths.  Holly is a pleasure to work with for the hull planking.  Gentle curves can bent by hand.  The extreme bends require a 30 minute soak in water and are pinned in place with clamps and planking screws.  After they are completely dry, final shaping is done and the plank is glued in place with almost no pressure.  I like to rough sand the planks every few rows to check for any problems.  It is a lot easier to pop one or two problem planks now rather than several planks after the hull is completed.  
 
The wale has gotten scuffed with handling and sanding.  It will get a re-paint  after all the planking has been installed.
 

 

 

 

 
 

That certainly looks much more like other cutter draughts I've seen, Christian. Just make sure that the joints in the keelson alternate with the joint in the keel (at about C and 9). They need to be as far apart from each other for strength.

Thank you, Druxey. I will follow your advice and modify my drawing.
 
Your input is the reason, why I post my drawing, because I am sure that there are things which can be done better. And so I am very happy that you show me possible improvements,

Here is the modified drawing.
 

Here is the modified drawing.
 

That Cheerful draught is unusual: if it was drawn that way, it must have been done like that. However, I'd say that was most unusual. The strength of the joints would be compromised and more bolts would need removing to replace the forefoot or gripe piece. The attached image is rather small, but demonstrates my point. (If you click on it, it will enlarge.) Note the keel joint at around station 6, aft.

My holidays are over so the progress is much slower than before.
 
I did the keelson before building the frames. So it is in my opinion much easier to adjust it with the fore and after deadwood.

 
Before glueing the keelson on the backbone It take a long time. All frames have to be installed first.
 
Today I worked on my first frame. It took quite long to find my way to build the frame. The result is not perfect, but I think doing the next frames will be much easier and faster. If it's interesting for someone I will do a step by step description from building one of the next frames.

My new keel drawing is finished.

 
Next I will draw the frames and build the new bigger version of my keel

Daniel asked me to show how I get the different center points and radii for the construction of an frame. Please be in mind that there are a lot of  other steps necessary before you can start with the frame construction.

First let me refer to two articles which I think that they are very helpful in understanding the lines of an original drawing
1. David Antscherl: Understanding Eighteenth-Century Admirality Drafts, Nautical Research Journal Vol. 52, No. 2 Summer 2008
2. David White: Understandig Ships' Draughts, Model Shipwright No. 48 ff.
 
I made some screen shots during the construction of the main frame of the cutter.

After creating the "Breath Extreme" line in the Body-Plan, I define the Center Points for the Lower Height of Breath.


Next I determine the radii of the arcs, which don't have the center points in the original drawing (most of this arcs were drawn with French Curves).
The list gives the different values:
Lower height of breath: 72.53 first:          260.35 second:    straight third:         -319.9  

 
Next I calculate the center point of the first curve: I draw an arc with the radius 260.35 from the endpoint of my help line and a radius from the center point of the lower height of breath withe the radius 260.35 - 72.53 = 187.82. Then I draw a line from this center point to the center point of the Lower height of breath and stretchit to the circle of the Lower height of breath. Now you can draw a circle with the first radius.

 
Now I repeat these steps for creating the center point of the third curve. I draw to circles with the determined radius, one from the keel and one from en point of the help line.

 
Next I draw a straight line to both circles. There exist an Autocad function to do this, so nothing to construct for me .

 
At last I draw the frame. I start at the Lower height of breath. Then I draw the upper height of breath and complete the frame with the other arcs and straights.


I hope that this small description is helpful for someone.

As written in my last post I bought last month the design drawing for Alert/Rattlesnake at the NMM.
With my new knowledge about reconstruction of a line drawing I started to redesign the ship on basis of the NMM drawing.
 
For this I did not use any information of Goodwin, because it's not a primary source. I don't have access to the archieves so I will only use the NMM drawing and later the vademecum for the scantlings. I am not sure if I like to show my model as designed and shown on the drawing or as shown on the Marshal painting.
Both presentations have the same origin: they should show the design for a ship to the people who allocate the funds.
 
The drawing isn't finished but I like to hear your meaning about the the reconstructed lines:

 

 
It#s my first reconstructed ship, so I am not sure if everything is right.

My new keel drawing is finished.

 
Next I will draw the frames and build the new bigger version of my keel

Daniel asked me to show how I get the different center points and radii for the construction of an frame. Please be in mind that there are a lot of  other steps necessary before you can start with the frame construction.

First let me refer to two articles which I think that they are very helpful in understanding the lines of an original drawing
1. David Antscherl: Understanding Eighteenth-Century Admirality Drafts, Nautical Research Journal Vol. 52, No. 2 Summer 2008
2. David White: Understandig Ships' Draughts, Model Shipwright No. 48 ff.
 
I made some screen shots during the construction of the main frame of the cutter.

After creating the "Breath Extreme" line in the Body-Plan, I define the Center Points for the Lower Height of Breath.


Next I determine the radii of the arcs, which don't have the center points in the original drawing (most of this arcs were drawn with French Curves).
The list gives the different values:
Lower height of breath: 72.53 first:          260.35 second:    straight third:         -319.9  

 
Next I calculate the center point of the first curve: I draw an arc with the radius 260.35 from the endpoint of my help line and a radius from the center point of the lower height of breath withe the radius 260.35 - 72.53 = 187.82. Then I draw a line from this center point to the center point of the Lower height of breath and stretchit to the circle of the Lower height of breath. Now you can draw a circle with the first radius.

 
Now I repeat these steps for creating the center point of the third curve. I draw to circles with the determined radius, one from the keel and one from en point of the help line.

 
Next I draw a straight line to both circles. There exist an Autocad function to do this, so nothing to construct for me .

 
At last I draw the frame. I start at the Lower height of breath. Then I draw the upper height of breath and complete the frame with the other arcs and straights.


I hope that this small description is helpful for someone.

My new keel drawing is finished.

 
Next I will draw the frames and build the new bigger version of my keel

Daniel asked me to show how I get the different center points and radii for the construction of an frame. Please be in mind that there are a lot of  other steps necessary before you can start with the frame construction.

First let me refer to two articles which I think that they are very helpful in understanding the lines of an original drawing
1. David Antscherl: Understanding Eighteenth-Century Admirality Drafts, Nautical Research Journal Vol. 52, No. 2 Summer 2008
2. David White: Understandig Ships' Draughts, Model Shipwright No. 48 ff.
 
I made some screen shots during the construction of the main frame of the cutter.

After creating the "Breath Extreme" line in the Body-Plan, I define the Center Points for the Lower Height of Breath.


Next I determine the radii of the arcs, which don't have the center points in the original drawing (most of this arcs were drawn with French Curves).
The list gives the different values:
Lower height of breath: 72.53 first:          260.35 second:    straight third:         -319.9  

 
Next I calculate the center point of the first curve: I draw an arc with the radius 260.35 from the endpoint of my help line and a radius from the center point of the lower height of breath withe the radius 260.35 - 72.53 = 187.82. Then I draw a line from this center point to the center point of the Lower height of breath and stretchit to the circle of the Lower height of breath. Now you can draw a circle with the first radius.

 
Now I repeat these steps for creating the center point of the third curve. I draw to circles with the determined radius, one from the keel and one from en point of the help line.

 
Next I draw a straight line to both circles. There exist an Autocad function to do this, so nothing to construct for me .

 
At last I draw the frame. I start at the Lower height of breath. Then I draw the upper height of breath and complete the frame with the other arcs and straights.


I hope that this small description is helpful for someone.

My new keel drawing is finished.

 
Next I will draw the frames and build the new bigger version of my keel

Daniel asked me to show how I get the different center points and radii for the construction of an frame. Please be in mind that there are a lot of  other steps necessary before you can start with the frame construction.

First let me refer to two articles which I think that they are very helpful in understanding the lines of an original drawing
1. David Antscherl: Understanding Eighteenth-Century Admirality Drafts, Nautical Research Journal Vol. 52, No. 2 Summer 2008
2. David White: Understandig Ships' Draughts, Model Shipwright No. 48 ff.
 
I made some screen shots during the construction of the main frame of the cutter.

After creating the "Breath Extreme" line in the Body-Plan, I define the Center Points for the Lower Height of Breath.


Next I determine the radii of the arcs, which don't have the center points in the original drawing (most of this arcs were drawn with French Curves).
The list gives the different values:
Lower height of breath: 72.53 first:          260.35 second:    straight third:         -319.9  

 
Next I calculate the center point of the first curve: I draw an arc with the radius 260.35 from the endpoint of my help line and a radius from the center point of the lower height of breath withe the radius 260.35 - 72.53 = 187.82. Then I draw a line from this center point to the center point of the Lower height of breath and stretchit to the circle of the Lower height of breath. Now you can draw a circle with the first radius.

 
Now I repeat these steps for creating the center point of the third curve. I draw to circles with the determined radius, one from the keel and one from en point of the help line.

 
Next I draw a straight line to both circles. There exist an Autocad function to do this, so nothing to construct for me .

 
At last I draw the frame. I start at the Lower height of breath. Then I draw the upper height of breath and complete the frame with the other arcs and straights.


I hope that this small description is helpful for someone.

My new keel drawing is finished.

 
Next I will draw the frames and build the new bigger version of my keel

Hello everyone,
 
after I had so much positiv response about the pictures of my model in the gallery, I decided to start a blog about this ship. 
 
About the Dragon is to say, it was a third rate ship, designed by Thomas Slade and build at Deptford. Launched 4.3.1760 and sold 1784. 
 
It is not the first ship model I have build, but the first 18th century and framed model. A friend told me about the Bellona and I'm interested to learn more about these ships. My first name is Siegfried and that name is program, Siegfried was the most famos dragon fighter here in Germany, or the only? So I would build the Dragon. I ordered the plans from the NMM and a lot of books from everywhere. Then I started learning. Because the whole ship would be too large in 1:48, I decided to build only the stern part, from the 10th frame backwards. After 3 month I started with the model.
 
That was in the winter of 2011/12. In 2012 a friend of mine was in London and I asked him to take pictures from the models at the NMM. That was a great thing and helped me a lot. In 2013 I visited the NMM and the shipyard at Chatham. Here I saw the Superb, the third ship of the Bellona class. That visit changed a lot, you will see it in the pictures. I changed mostly the color of the hull. 
 
I will post the first pictures in a fast pass, to get update with the actual level of work.
 
And please excuse my english.
 
Regards,
 
Siggi
 
 
 
 

As written in my last post I bought last month the design drawing for Alert/Rattlesnake at the NMM.
With my new knowledge about reconstruction of a line drawing I started to redesign the ship on basis of the NMM drawing.
 
For this I did not use any information of Goodwin, because it's not a primary source. I don't have access to the archieves so I will only use the NMM drawing and later the vademecum for the scantlings. I am not sure if I like to show my model as designed and shown on the drawing or as shown on the Marshal painting.
Both presentations have the same origin: they should show the design for a ship to the people who allocate the funds.
 
The drawing isn't finished but I like to hear your meaning about the the reconstructed lines:

 

 
It#s my first reconstructed ship, so I am not sure if everything is right.

Really wonderful Remco