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PFM-1 air, Russian air delivered dispenser mine
- Thread starter pzgr40
- Start date
pzgr40
Well-Known Member
Added text and improved quality drawing with the self destruct stage included, 28-08-2023
If no one steps on the mine the arming pin (20) will be pushed upward by it’s spring (21) and piston (20). The chamber around the arming pin is filled with silicon grease that will be pushed from one side of the piston (20) to the other side through an appr. 0,05mm hole in the flange of the piston. This forms the delay.
As the arming pin moves upward (20) it will push the detonator (17), the firing cap housing (15) with the firing cap (16), the firing pin housing (10) with the firing pin (11) and spring (12) forward until the steel ball (13) falls over the edge of the collar bush (14), activating self-destruction by releasing the firing pin.
Of course it does matter for self-destruction time if the PFM-1S lays in the hot desert with the silicon grease becoming more viscos than if the same mine is placed in cold snow where the silicon grease will become less viscos (thicker).
If no one steps on the mine the arming pin (20) will be pushed upward by it’s spring (21) and piston (20). The chamber around the arming pin is filled with silicon grease that will be pushed from one side of the piston (20) to the other side through an appr. 0,05mm hole in the flange of the piston. This forms the delay.
As the arming pin moves upward (20) it will push the detonator (17), the firing cap housing (15) with the firing cap (16), the firing pin housing (10) with the firing pin (11) and spring (12) forward until the steel ball (13) falls over the edge of the collar bush (14), activating self-destruction by releasing the firing pin.
Of course it does matter for self-destruction time if the PFM-1S lays in the hot desert with the silicon grease becoming more viscos than if the same mine is placed in cold snow where the silicon grease will become less viscos (thicker).
Attachments
Ryan Platfoot
New Member
Does any on have a source Documentation to put these 2 items together. By nomenclature they should however all the manuals seem to think that the KPFM-M holds the PFM-1 not the PFM-M. KPOM's and KPTMs follow the same naming convention with what's inside. Any help in the matter would be awesome.
Attachments
KPFM-1 is container for mines PFM-1 and KPFM-1S is for mines PFM-1S. Both use in the 220mm rocket 9M27K3. Also could be KPFM-1S-SK, it means in container half green and half brown colour mines PFM-1S in one container and probably exists KPFM-1-SK. In the same time no information about differences in markings exactly on the rockets with green, brown and 50:50 mix of colours in it.
KPFM-M probably experimental container with PFM-M, what we can see on your photos. Probably it is also for 220mm MLRS, but no information about this mine. PFM-M looks like general PFM-1 mine, maybe different fuze.
For me would not be strange, if PFM-M is future PFM-1S. Different period of time one mine could have different indexes. Look at serie of POM-2 mines: in instruction indexes for different training versions, in the Book 6 about mines - complitely different indexes. And both sources are official
