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PFM-1 air, Russian air delivered dispenser mine
- Thread starter pzgr40
- Start date
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).
