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GVM fuze
- Thread starter Nabob
- Start date
GVM is only instantaneous (no delay selector)
Thank You, your images all show GVMZ fuze with optional delay.
I am looking for the non delay variant.
It is often reffered to in 120 mm mortar manuals, but only as:
"GVM fuze is the same as GVMZ only without delay".
As You can see in my drawings, and MINENAZ16 correctly noticed, the shape od the fuze is more "KTM-like", including booster assembly.
The real GVM fuze on the photos looks from the outside as GVMZ only the delay selector is missing.
Bob
I am looking for the non delay variant.
It is often reffered to in 120 mm mortar manuals, but only as:
"GVM fuze is the same as GVMZ only without delay".
As You can see in my drawings, and MINENAZ16 correctly noticed, the shape od the fuze is more "KTM-like", including booster assembly.
The real GVM fuze on the photos looks from the outside as GVMZ only the delay selector is missing.
Bob
Last edited:
Sorry, can't see the GVM in the attachment.
There is the GVMZ (AZ 399 (r)) and the GVMZ dlja min (GVMZ for mortars AZ 399/2(r))
The lower fuze is the M-1 (AZ 398(r))
The 12,2 cm HL (r) would be either the original soviet BP-460A fuzed with V-229(discussed here in detail earlier) or some german development fuzed with german fuze.
I cant find info on this right now.
Bob
There is the GVMZ (AZ 399 (r)) and the GVMZ dlja min (GVMZ for mortars AZ 399/2(r))
The lower fuze is the M-1 (AZ 398(r))
The 12,2 cm HL (r) would be either the original soviet BP-460A fuzed with V-229(discussed here in detail earlier) or some german development fuzed with german fuze.
I cant find info on this right now.
Bob
Hello, sorry to revive an old topic.
@Chris - what were your fuzes mounted on?
Recently I got this for my collection - a relic GVMZ-1 fuze, but with some interesting markings that i can see in your photo as well. The marking writes "ГВМЗ-1 ДЛЯ МИН 350Ф" meaning "GVMZ-1 for 350F mine" which is a bit strange, first of all because mine is not exactly the correct term here, and 350F is the code of the HE shell of 76,2mm caliber, and as far as i know these fuzes were not used on 76,2mm HE shells. Searching for more info, I have seen in the drawing that @Bever posted an M-1 fuze with the same marking. It makes a bit of sense, since they share the same thread size as the KTM-1/KTMZ-1 fuzes but I am not sure about the spring force inside, it might be unsuitable for 76,2mm. Does anyone have an explanation? Have you seen other fuzes marked like this?
PS or maybe i am interpreting it wrong and ДЛЯ МИН is an abbreviation for "for mortar" as @Nabob wrote, but then what does 350Ф mean in this case?
Attachments
Eggburt1969
Well-Known Member
The code 350F (350Ф) is the factory code part of the factory-batch/lot-year marking system.
Yours seems to be 350F-19-44, so Factory 350F - Batch/Lot 19 - 1944.
Another example is attached, this time a KTD (КТД) base fuze, which in its case is 350F-9-46.
Yours seems to be 350F-19-44, so Factory 350F - Batch/Lot 19 - 1944.
Another example is attached, this time a KTD (КТД) base fuze, which in its case is 350F-9-46.
Attachments
The company's production code 350F indicates:
- marking 3 is incorrectly referred to as a number; it is actually the letter Z "ZAVOD" - factory
- marking 50 is the numerical designation of the manufacturing plant - No. 50
- the F marking is the naming of the factory after the Soviet Bolshevik leader - Frunze
Another frequently used manufacturer's marking for Soviet fuzes is 3144:
3 - "ZAVOD" - factory
144 - factory number - No. 144
Marcel
- marking 3 is incorrectly referred to as a number; it is actually the letter Z "ZAVOD" - factory
- marking 50 is the numerical designation of the manufacturing plant - No. 50
- the F marking is the naming of the factory after the Soviet Bolshevik leader - Frunze
Another frequently used manufacturer's marking for Soviet fuzes is 3144:
3 - "ZAVOD" - factory
144 - factory number - No. 144
Marcel
Eggburt1969
Well-Known Member
Makes perfect sense, as I didn't even think to check the Z-3, Cyrillic 3-З, problem! I did check 'Factory 350F' in a publication I use on Soviet-era factories, but obviously nothing came up.
An example of the Z144 (З144) marking on a 3V35 (3В35) fuze is below. Plus an image of the rest of the markings, which shows how font of the numeric 3 has been selected to minimise confusion with the Cyrillic Z. The likely factory 144, according to the same Soviet-era factory document, is either (their text, not mine) 'im. Kalinina' or 'KB 'z-da im. Kalinina'
Factory 42, normally seen as 42-M on fuzes, it related to Factory 144.
Eggburt1969
Well-Known Member
I'm aware (see attached). So others can simply look it up for themselves, just use the document linked below.
Numbered Factories of the Soviet Defence Industry
warwick.ac.uk
I don't maintain the file, nor have anything to do with it, but it's helpful... if complex, and by heck is it HUGE!!!
As it's a tad large, opening the file with MS Office Excel, Open Office Calc, and other spreadsheet programs, may cause problems, or simply take an age to open.
Attachments
Hi Gentleman
The cut-away image of the GVM fuse published by Nabob comes from a collection that is missing the front cover and imprint.
For the time being, it is therefore not possible to state its name and year of publication (according to the materials of the post-war edition) it is available globally. It is a collection containing details of fuse : Czech , Russian , Italian ,US , France , UK ... with a description of the function, cross-sectional drawings and possibly its shortcomings (according to Russian actuators). An interesting feature of the Russian ones is when and who constructed it.
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Fuse GVM is described in this literature as only limited wartime product for the following reasons: production capacity savings (it is more economical to produce). At the time of the evacuation of plants from the original to a new place of production.
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It is stated for the GVZM : the use of this igniter with HE ammunition (122mm, etc.) was not successful for explosions in the barrel and failed in the target. They state the reasons: the piston, which is made of leather, does not leak, and therefore after the piston is pressed and the compression space is insufficiently created, the igniter does not activate... In addition, it is insufficiently sealed... and sand and dirt enter the fuses space...
The cut-away image of the GVM fuse published by Nabob comes from a collection that is missing the front cover and imprint.
For the time being, it is therefore not possible to state its name and year of publication (according to the materials of the post-war edition) it is available globally. It is a collection containing details of fuse : Czech , Russian , Italian ,US , France , UK ... with a description of the function, cross-sectional drawings and possibly its shortcomings (according to Russian actuators). An interesting feature of the Russian ones is when and who constructed it.
------
Fuse GVM is described in this literature as only limited wartime product for the following reasons: production capacity savings (it is more economical to produce). At the time of the evacuation of plants from the original to a new place of production.
------
It is stated for the GVZM : the use of this igniter with HE ammunition (122mm, etc.) was not successful for explosions in the barrel and failed in the target. They state the reasons: the piston, which is made of leather, does not leak, and therefore after the piston is pressed and the compression space is insufficiently created, the igniter does not activate... In addition, it is insufficiently sealed... and sand and dirt enter the fuses space...
Resolution of the Defense Committee of the Council of People's Commissars of the USSR "On the introduction of the GVMZ fuse into the armament of the Red Army"
www.prlib.ru
Akon
Resolution of the Defense Committee of the Council of People's Commissars of the USSR "On the introduction of the GVMZ fuse into the armament of the Red Army"
Ф. Р-8418. Постановление Комитета обороны при СНК СССР "О введении на вооружение РККА взрывателя „ГВМЗ“".
www.prlib.ru
