18 1/2 Pr

[Bonnex]

In 1904 trials took place with the new 18Pr Field Gun with 18 1/2 pound and 20 pound projectiles. The photograph shows an unfired empty HE shell presumably from the trials programme. It is marked with the number 2 on the body and 18 1/2 Pr FIRTH on the base. Also a photo of a thinly marked Case, Cartridge, 18Pr Mark IV dated 1940 VAEL Manufacture (Vickers).

 

[doctor]

Hi
HE Shell really interesting.
They is probably the first tests of construction of HE shell for the casing Mk I with throat of setting and primitive driving band primitive as shapnel Mk I and II for casing Mk I
Is the reducer of eye also strange, is it to receive the fuze 80/44 or 44 only?
The first HE shell in service 18Pr Mk I does not have this throat under the driving band and was used with the casing Mk II since 1914

 

[Bonnex]

Hi
HE Shell really interesting.
They is probably the first tests of construction of HE shell for the casing Mk I with throat of setting and primitive driving band primitive as shapnel Mk I and II for casing Mk I
Is the reducer of eye also strange, is it to receive the fuze 80/44 or 44 only?
The first HE shell in service 18Pr Mk I does not have this throat under the driving band and was used with the casing Mk II since 1914

Dear Doctor,

The fuze adapter is GS gauge I believe so a No 44 should be good fit. I will see if I can find anything in OB Procs to indicate the fuze used in the trials.
Herewith another FIRTH 18 1/2 Pr projectile which I assume to be Common Pointed rather than AP. It needs a good clean but I expect it to be numbered 1 or 3.