No 28 Mk III / IV Grenade

[peteblight]

Here's an interesting one, a No 28 Mk III or IV chemical grenade.

Not too many of these around i would guess!

I'll have to defer to Norman to provide information about this one.

Cheers

Pete

 

[Bonnex]

It was a Porton 1920s development that followed on from the No 28 Mk IV and was known by its design number DD(L)842. As you can see it used the allways fuze from the No 54. It was filled Mustard and was basically for area denial operations. The payload was insufficent for the task and further experimental work produced the 6lb Ground Bomb.

Excuse the rushed reply.

 

[peteblight]

Thanks Norman, did you ever dig the design drawing out?

Cheers

Pete

 

[Bonnex]

Thanks Norman, did you ever dig the design drawing out?

Cheers

Pete

Yes Pete, or at least I found an amended one DD(L)842A dated Feb 1930. I will send you a copy.

 

[peteblight]

I found a bit more information on this grenade.

Capacity - 220cc

Fill - 198cc

Empty weight - 12oz

Complete fuzed weight - 2lb 4oz

Not much, but another piece of the puzzle.

Pete

 

[Bonnex]

Pete,

Thanks for yours. I have been looking out a few 1920s reports and am having trouble confirming the use of Mustard in the DD(L)842A grenade but certainly SK and KJ fillings were trialled. Hopefully I will find the link to Mustard and the 6lb Ground Bomb in the early 1930s.

 

[peteblight]

Norman,

I found reference to KJ, but not to mustard.
Is the A significant on Design Drawing 842?


Cheers

Pete

 

[Bonnex]

Pete,
The 'A' usually means a significant amendment to the original design. So DD/L/842 will be different to DD/L/842A.

 

[peteblight]

Here's the pictures of the base, both with the cap in place and removed.

Cheers

Pete

 

[Eugenio]

But, don't was the 28 a spherical grenade? Or maybe only were spherical the MK I and II?