Looking for information about this fuze

[Fjordhouse]

I am looking for information about this bombfuze. First I thought it a German nr 40 but that’s not possible it say 4 U so I hope that someone has information about this fuze

I can also be another country I think it’s German but I can be wrong

Regards
Ben

 

[strakv]

Apart from the setting knob it is very similar to the AZ 24 used in the SB2500.

 

[Fjordhouse]

It seems to be an early 34b but still no documentation about this fuze

 

[LEAFLET]

Again something special for you Ben, well done

 

[Antoon]

The German Marine Dienstvorschrift Nr. 452 (M.Dv. Nr. 452) about Luftminen (1944) mention the following about the Zusatzzünder Z 34 B: The working and description about the fuze is written in the German Luftwaffe Dienstvorschrift g 152/32 (L.Dv. g 152/32) (1943).

I do not have this German Air Force manual, maybe someone else?

 

[AKON_]

I came across photos on Facebook (I don't know the author).

We probably know the type (34) A...
O
On the left is the type (34) B, on the right is the type (4u).
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The type (34) B has, among other things, a special feature, which is a hydrostatic target sensor... the purpose of the igniter is primarily to destroy a mine if it falls outside the water or into shallow water.
That is, t



o eliminate the risk of mine misalignment and to understand the design.



Foto right the type (4 u) has a mechanical transport safety (I am not sure if this is a unique solution or has been used elsewhere) and as for the other stages of unlocking, it is using a clockwork. The target sensor itself is purely impact. (duplicate)It contains 2 independent impact systems in a 90-degree position and are similar to the type modification ... or ? 80A.