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Hi:
Here is a list of all the fuzes I have on my 2cm Flak: -AZ 5045 1939 -AZ 5045 1940 -Kpf. Z.45 1941 -Kpf. Z.45 1942 -Kpf. Z.45 1943 -Kpf. Z.Zerl.Fg 1943 Marine -AZ 1504a 1944 -AZ 49 1504 1944 -AZ 48 1944 Also Id like to know what the hell is this round. The shorter one.
Hi Miguel, the AZ1504 was used only on Mg 152/20 or 20 mm Oerlikon short (both 20x81mm) cartridges.
The one projectile you show has an overall same length as all HE shells for the 20x139 Solothurm, exept the Kopfz. Zerl Fg was used on projectiles WHITOUT a tracer. Normal fuzes dit not have a mechanical Fg Self destruct mechanism , so they relied on a tracer self destruct.
Regards , DJH
Hi Miguel, here you are. You can clearly see the difference between the length of the tracer SD shells and the cartridges where the fuze has a mechanical SD device; a drawing of the disc is added, they are placed at in the fuze at the green arrows. So, the short projectile needs the Kpfz Zerl FG, the longer ones the AZ 47. It enshures the total length of the cartridges remains the same overall for all types of German HE.
All fuzes from the scanned in "2cm fuzes" drawing are for the longer projectile Solothurm shells.
The top one is the MG151/20 with the AZ 1504. As you can see, the body of this fuze protrudes much deeper in the projectile body as the fuzes used on the Solothurm projectiles.
Regards DJH
Ps: the three duplex detonators not cut in this picture are -by meself- machined solid DUMMY's (before my mailbox starts filling up)
AARRGGGHHHHHH, I want id on MY shell :tinysmile_cry_t3:. Now I have learned about 1504 fuzes, but still have no clear what is that shell. :frown: MY shell.
It is also a 2 cm Flak shell:tinysmile_cry_t2:....... it belongs on the 20x139 B shellcase. It must be fuzed with the Kpfz. Zerl. Fg fuze. YOUR projectile is one of the types with the green arrow on the fuze, presumably the one without tracer (3rd from below).
Regards DJH
Ok, then the 2cm Flak cases are always the same case, except on the top, with crimped and not crimped tops. Crimped for early rounds and flat for war shells. Right? I have never seen before a shorter shell for 2cm Flak. Are they rare?
Most often the brass shellcases were crimped, as this material is more ductile. I think one simply preferred to press projectiles in steel cases as this gave less problems with shellcase mouths breaking near the crimp with steel cases, causing weapon malfunction. However crimped and pressed can be found in brass and steel
There will be some experimental 20x139 shellcases without a doubt, but they have never been put into use. And they are without question very rare.
Regards, DJH
Im very surprised that only you have answered to my questions, if this have been a question about a grenade the thread would be full with different members posts. Is the 2cm Flak a very specialized collecting field?
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