British Codes

[jvollenberg]

Question:

I am wondering does anyone have a list of the British letter codes such as No 12 D Mk 1 (D stands for delay)

I am interested in the rest of the lettering:

I have D and F ... I think P is powder filled (whatever that means).

Any ideas or am I off in thinking there was a code to their system?

Joe

 

[Bonnex]

Identification Letters - British Fuzes

This system of identification had fallen from use in Land Service by 1962 but some in-Service fuzes still sported letter codes. Note the letter code could appear after the Number designation or after the Mark and would mean different things. Those around in the 1960s were:

AFTER Mark of fuze:
A = Fuze similar to previous conversion but of new manufacture
B = Fuze fitted with one piece striker
D = Brass disc fitted above detonator
E = Stronger creep spring
M = Modification of original design
Pb Spl = Lead free
S = Steel rather than aluminium hammer head
T = Fuze with percussion detonator removed leaving time only function
Z = Lead Azide detonator (until 1940 and excluding 247)
* = Conversion

AFTER No of fuze
A = Picric instead of CE pellet
B = Weaker detent spring
C = Converted fuze
D = Fuze incorporates a delay
E = Add a safety shutter to a fuze design normally without (eg 106)
P = Powder filled magazine

N in various places = Naval Service (although may have been used in LS)