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Transit plugs

2pounder

Well-Known Member
Premium Member
Wondering if anyone has a list of transit plugs and which shells they were used in, particularly WWI era.
 
Is the attached 1917 summary any help to you?
 

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thankyou very much indeed, exactly the sort of thing I was looking for. I'm sure it will help others as well.
 
There is a list as well as drawings and photos in my book! "An Illustrated Technical Guide to WW1 Fuzes" Depotman.
 
Where if at all do the wooden plugs fit in this - or just for internal or
trans factory shipping ?
 

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Something new every day - I'd never heard of wooden plugs until now, and never seen them mentioned in all the research I did for my book. Certainly composite (rubber/bakelite etc) were introduced in, I think, the late 1930s and I'm currently investigating 2-pdr pom-pom nose and base plugs of a plastic type material for these. My guess is that these particular items were used when transporting machined heads to the filling factory. Depotman
 
Paragraph 18017 in WO List of Changes describes the "Plug, fuze-hole, transit, 2-inch, Wood, Marks I and II" and also the "Armilite" Mark I and "Pluton" Mark I.

The wood plugs were made of boxwood or a similar hard wood; the Mark I had a flanged head with slot for key No.48 and the Mark II a .25-inch hole bored diametrically through the top instead of a slot. The two marks were used for plugging empty shell for transit purposes.

The "Armilite" was made of a hard black material called armilite, with a metal-bushed key slot. The plug was "an alternative to steel, iron or metal plugs for transit of heavy shrapnel shell overseas to England". This suggests that the origin of the shell was Canada or the US.

The "Pluton" was similar to the "Armilite" but of different composition and different shape and dimensions. It was used as "an alternative to wood or 'armilite' transit plugs in empty HE and shrapnel shell".

Contracts were generally placed with the Area Munitions Committees for them to distribute to smaller firms, or otherwise directly with largescale wood workers such as bobbin makers. Some random examples shown below:
 

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That's excellent - many thanks indeed. If I ever produce a 2nd Edition of my book I'll certainly include non-metallic plugs! Depotman
 
That's brilliant ! Now there must be some more around ? Can any one else show some ?
Here are images at 100 dpi to be pulled by anyone who wants them. Also 2" placed on 18pr
and 4.5". It is now a loose fit due to shrinkage over time.
 

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Here are Wooden plugs in use, these appear to be 6" projectiles.
 

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