28-foot Steam cutter on the James White System (1876) by vladislemm - Piroscaf & Co Scale Models - 1:24 - by Vladislav Lemm

[Keithbrad80]

Do you know the reason behind diagonal planking? Was it stronger somehow? Horizontal planks give the ship strength and rigidity, I’ll assume diagonal planks do the same, but what was the specific reasoning behind diagonal planks? 

[BobG]

Is this model currently available to purchase? 

[vladislemm]

On 12/25/2020 at 10:26 PM, Keithbrad80 said:

Do you know the reason behind diagonal planking? Was it stronger somehow? Horizontal planks give the ship strength and rigidity, I’ll assume diagonal planks do the same, but what was the specific reasoning behind diagonal planks? 

It is designed for covering the hulls of boats, which should have the greatest transverse and longitudinal strength.

Edited December 26, 2020 by vladislemm

[vladislemm]

Almost finished diagonal planks.

 

[Jim Lad]

Excellent work.

 

John

[vladislemm]

Friends, I wish you all a Happy New Year!!!😉

[vladislemm]

The holidays are over! Finished the diagonal planks.

 

 

 

Edited January 11, 2021 by vladislemm

[G.L.]

Very nice work, Vladislav.

[vladislemm]

Hello everyone!

I began to lay the horizontal planks of the hull.

 

 

 

 

 

[BobG]

Beautiful planking job! What are the dimensions of this model?

[Keithbrad80]

Fantastic plank job so far! Very interesting build so far. 
 

Bradley

[vladislemm]

18 hours ago, BobG said:

Beautiful planking job! What are the dimensions of this model?

Cutter dimension: length - 359 mm, width - 92 mm,  нeight - 141 mm (with flagstaff)

[vladislemm]

I finished the horizontal planks.

 

 

 

 

 

[vladislemm]

I broke down the technological parts of the frame. The boat hull has become very light!

 

 

 

 

 

[vladislemm]

The keel and stem fell into place, and I began to sheathe the side air boxes.

 

 

 

 

 

 

[vladislemm]

Continue planking the hull inner space.

 

 

 

 

 

 

Edited June 17, 2021 by vladislemm

[Jim Lad]

Excellent work! She's a credit to you.

 

John

[michael mott]

A very clean looking model, nice planking work.

 

Michael

[Moab]

BEAUTIFUL work!...Moab

[Bob Cleek]

On 12/25/2020 at 11:26 AM, Keithbrad80 said:

Do you know the reason behind diagonal planking? Was it stronger somehow? Horizontal planks give the ship strength and rigidity, I’ll assume diagonal planks do the same, but what was the specific reasoning behind diagonal planks? 

Actually, the diagonally layered planking such as in this boat had a layer of muslin or calico set in thick shellac or white lead between the planking layers. This created a sort of early cold-molded hull which resisted opening up when stored above a ship better than standard carvel planking did. This reduced, if not eliminated the need to launch and tow ("stream") the ship's boats regularly to keep them from leaking when dried out. It was very common on ship's launches and lifeboats and lifesaving boats stored ashore in this period.

[wefalck]

According to my German 1878 textbook on (naval) boatbuilding, the diagonal planking was up to 30% lighter, than a carvel-planked boat and even more so for a lap-strake built one. However, building costs were higher and they are also more difficult to repair. The diagonal-carvel system (as in this example) was used particularly, when the hull was to be (partially) varnished on the outside, rather than painted all over. A tropical hardwood was preferred for the inner planking to better resist rotting - it would have been very difficult to replace inner planking without essentially dismantling half of the boat.

 

The model is coming on nicely. It's a pity that not much of the inner diagonal strakes will be visible at the end.