michael_clj's profile picture. a lowly UXO tech interested in conflict

Michael CL Johnson

@michael_clj

a lowly UXO tech interested in conflict

Michael CL Johnson reposted

Ukrainian “FP-2” long-range strike UAVs have been armed with “OFAB-100-119-TU” aerial bombs without the tail fin as a warhead. This is a HE-fragmentation bomb with the powerful explosive TG-50, a 50/50 mixture of TNT and hexogen. 1/

GrandpaRoy2's tweet image. Ukrainian “FP-2” long-range strike UAVs have been armed with “OFAB-100-119-TU” aerial bombs without the tail fin as a warhead.
This is a HE-fragmentation bomb with the powerful explosive TG-50, a 50/50 mixture of TNT and hexogen.
1/
GrandpaRoy2's tweet image. Ukrainian “FP-2” long-range strike UAVs have been armed with “OFAB-100-119-TU” aerial bombs without the tail fin as a warhead.
This is a HE-fragmentation bomb with the powerful explosive TG-50, a 50/50 mixture of TNT and hexogen.
1/
GrandpaRoy2's tweet image. Ukrainian “FP-2” long-range strike UAVs have been armed with “OFAB-100-119-TU” aerial bombs without the tail fin as a warhead.
This is a HE-fragmentation bomb with the powerful explosive TG-50, a 50/50 mixture of TNT and hexogen.
1/

The Ukrainian SBU is using FP-2 medium-range strike UAV against targets in occupied Ukraine and (according to the Russians) near Belgorod in Russia. The FP-2 is derived from the FP-1 long-range UAV, but has a larger 105 kg warhead that results in massive damage to the targets.



Michael CL Johnson reposted

With the huge numbers of FPVs expended every day, electric detonators are becoming scarce. Here a Russian painstakingly removes the primer from the mechanical detonator of a UZRG-M grenade fuze. This allows an electric match to be inserted, creating an ersatz electric detonator.

A Russian demonstrates how not to remove the pyrotechnic delay from a detonator from a UZRG-M hand grenade fuze. He’s either joking, or he doesn’t really care if he keeps all of his fingers. The image shows a rational approach.

GrandpaRoy2's tweet image. A Russian demonstrates how not to remove the pyrotechnic delay from a detonator from a UZRG-M hand grenade fuze.
He’s either joking, or he doesn’t really care if he keeps all of his fingers.
The image shows a rational approach.


Michael CL Johnson reposted

A Russian FPV incendiary warhead is assembled using a length of solid rocket fuel scavenged from Grad 122 mm rockets. The fuel is ignited by an electric match paired with the modified mechanical detonator from a UZRG-M grenade fuze, as shown in the quote tweet. 1/

With the huge numbers of FPVs expended every day, electric detonators are becoming scarce. Here a Russian painstakingly removes the primer from the mechanical detonator of a UZRG-M grenade fuze. This allows an electric match to be inserted, creating an ersatz electric detonator.



Michael CL Johnson reposted

A new Ukrainian pressure-plate improvised blast landmine with PVV-7 explosive and an EDP-r electric detonator. Foil surfaces are separated by a non-conductive foam gasket. Stepping on the device compresses the foam so that the foil surfaces contact to close an electric circuit.

A Ukrainian improvised anti-personnel landmine is called “Heavenly Punishment” (Небесна кара). Under pressure the printed cover flexes, and the screws contact a conductive plate. This closes a battery powered circuit, igniting an electric match to initiate the plastic explosive.

GrandpaRoy2's tweet image. A Ukrainian improvised anti-personnel landmine is called “Heavenly Punishment” (Небесна кара).
Under pressure the printed cover flexes, and the screws contact a conductive plate.
This closes a battery powered circuit, igniting an electric match to initiate the plastic explosive.
GrandpaRoy2's tweet image. A Ukrainian improvised anti-personnel landmine is called “Heavenly Punishment” (Небесна кара).
Under pressure the printed cover flexes, and the screws contact a conductive plate.
This closes a battery powered circuit, igniting an electric match to initiate the plastic explosive.
GrandpaRoy2's tweet image. A Ukrainian improvised anti-personnel landmine is called “Heavenly Punishment” (Небесна кара).
Under pressure the printed cover flexes, and the screws contact a conductive plate.
This closes a battery powered circuit, igniting an electric match to initiate the plastic explosive.
GrandpaRoy2's tweet image. A Ukrainian improvised anti-personnel landmine is called “Heavenly Punishment” (Небесна кара).
Under pressure the printed cover flexes, and the screws contact a conductive plate.
This closes a battery powered circuit, igniting an electric match to initiate the plastic explosive.


Michael CL Johnson reposted

Another Ukrainian anti-vehicle improvised landmine uses PMN-4 anti-personnel landmine components as a pressure-activated initiator. A neatly folded metal container is packed with about 800 g of PVV-7 explosive, plenty to destroy motorcycles and light vehicles.

A Russian anti-vehicle improvised landmine for drone dropping has a wire mesh frame stuffed with PVV-7 explosive. A PMN-4 anti-personnel landmine serves as the initiator. A tether tying the landmine arming ripcord to the drone starts the arming delay when the device is dropped.



Michael CL Johnson reposted

A Ukrainian PTM-L1 shaped-charge anti-vehicle landmine is prepared for dropping from a drone. The integrity of the arming delay is tested with an electric match before installing the electronic “Jonik” magnetic-influence fuze.

The PTM-1L is a Ukrainian shaped-charged EFP (Explosively Formed Projectile) magnetic-influence landmine for dropping by drones. Earlier prototypes have been occasionally seen, but apparently the design has been finalized and is in production. 1/

GrandpaRoy2's tweet image. The PTM-1L is a Ukrainian shaped-charged EFP (Explosively Formed Projectile) magnetic-influence landmine for dropping by drones.
Earlier prototypes have been occasionally seen, but apparently the design has been finalized and is in production.
1/
GrandpaRoy2's tweet image. The PTM-1L is a Ukrainian shaped-charged EFP (Explosively Formed Projectile) magnetic-influence landmine for dropping by drones.
Earlier prototypes have been occasionally seen, but apparently the design has been finalized and is in production.
1/


Michael CL Johnson reposted

A Ukrainian soldier shows a battlefield so littered with spent shell casings the ground is no longer visible.


Michael CL Johnson reposted

The Russian “KZD-100” is a shaped-charge EFP munition first seen in 2024. Derived from the KZ series of EFP demolition charges, it is intended as an off-route anti-vehicle device similar in function to the Russian TM-83 landmine.

GrandpaRoy2's tweet image. The Russian “KZD-100” is a shaped-charge EFP munition first seen in 2024.
Derived from the KZ series of EFP demolition charges, it is intended as an off-route anti-vehicle device similar in function to the Russian TM-83 landmine.
GrandpaRoy2's tweet image. The Russian “KZD-100” is a shaped-charge EFP munition first seen in 2024.
Derived from the KZ series of EFP demolition charges, it is intended as an off-route anti-vehicle device similar in function to the Russian TM-83 landmine.
GrandpaRoy2's tweet image. The Russian “KZD-100” is a shaped-charge EFP munition first seen in 2024.
Derived from the KZ series of EFP demolition charges, it is intended as an off-route anti-vehicle device similar in function to the Russian TM-83 landmine.

The Russian TM-83 is an off-route anti-tank mine designed to damage or destroy vehicles with a shaped-charge EFP (Explosively Formed Projectile). An infrared sensor detects when a beam from an infrared lamp is interrupted by a passing tank. Battery life is about 30 days. 1/2

GrandpaRoy2's tweet image. The Russian TM-83 is an off-route anti-tank mine designed to damage or destroy vehicles with a shaped-charge EFP (Explosively Formed Projectile).
An infrared sensor detects when a beam from an infrared lamp is interrupted by a passing tank.
Battery life is about 30 days. 
1/2
GrandpaRoy2's tweet image. The Russian TM-83 is an off-route anti-tank mine designed to damage or destroy vehicles with a shaped-charge EFP (Explosively Formed Projectile).
An infrared sensor detects when a beam from an infrared lamp is interrupted by a passing tank.
Battery life is about 30 days. 
1/2


Michael CL Johnson reposted

Backpack line charges for clearing landmines are normally deployed by small rockets. In this short clip a Chinese drone has been adapted for this task. 1/

The effects of the rocket-deployed Man-Portable Line Charge (MPLC) from the #Netherlands. t.me/VIUKSIDV/51339



Michael CL Johnson reposted

Cross sections of Ukrainian “YBN” and “UYA” FPV warheads. Both warheads have shaped-charge EFP (Explosively Formed Projectile) designs with steel ball fragmentation elements. 1/

GrandpaRoy2's tweet image. Cross sections of Ukrainian “YBN” and “UYA” FPV warheads.
Both warheads have shaped-charge EFP (Explosively Formed Projectile) designs with steel ball fragmentation elements.
1/
GrandpaRoy2's tweet image. Cross sections of Ukrainian “YBN” and “UYA” FPV warheads.
Both warheads have shaped-charge EFP (Explosively Formed Projectile) designs with steel ball fragmentation elements.
1/

The Ukrainian “YBN-110” (УБН-110) is an EFP shaped-charge fragmentation impact FPV munition. A larger version of the UYA-95 in the quote, steel balls have been added as directional fragmentation elements. The explosive charge is 1.5kg, increased from 0.9kg. 1/

GrandpaRoy2's tweet image. The Ukrainian “YBN-110” (УБН-110) is an EFP shaped-charge fragmentation impact FPV munition.
A larger version of the UYA-95 in the quote, steel balls have been added as directional fragmentation elements.
The explosive charge is 1.5kg, increased from 0.9kg.
1/
GrandpaRoy2's tweet image. The Ukrainian “YBN-110” (УБН-110) is an EFP shaped-charge fragmentation impact FPV munition.
A larger version of the UYA-95 in the quote, steel balls have been added as directional fragmentation elements.
The explosive charge is 1.5kg, increased from 0.9kg.
1/
GrandpaRoy2's tweet image. The Ukrainian “YBN-110” (УБН-110) is an EFP shaped-charge fragmentation impact FPV munition.
A larger version of the UYA-95 in the quote, steel balls have been added as directional fragmentation elements.
The explosive charge is 1.5kg, increased from 0.9kg.
1/
GrandpaRoy2's tweet image. The Ukrainian “YBN-110” (УБН-110) is an EFP shaped-charge fragmentation impact FPV munition.
A larger version of the UYA-95 in the quote, steel balls have been added as directional fragmentation elements.
The explosive charge is 1.5kg, increased from 0.9kg.
1/


Michael CL Johnson reposted

A drone-dropped Ukrainian “K2” improvised anti-personnel landmine has perfectly deployed its four 10-meter-long tripwire sensors. And apparently dropped with it as irresistible bait are Russian banknotes in 500, 1000, and 5000 ruble denominations.

GrandpaRoy2's tweet image. A drone-dropped Ukrainian “K2” improvised anti-personnel landmine has perfectly deployed its four 10-meter-long tripwire sensors.
And apparently dropped with it as irresistible bait are Russian banknotes in 500, 1000, and 5000 ruble denominations.

Ukrainian volunteer units make a complex improvised mine for dropping from heavy drones, inspired by the POM-2 mine. Called “K2” or “POM-110” by the Russians, it has intricate printed parts, with spring-loaded tripwires connected to an electric fuze. 1/1

GrandpaRoy2's tweet image. Ukrainian volunteer units make a complex improvised mine for dropping from heavy drones, inspired by the POM-2  mine.
Called “K2” or “POM-110” by the Russians, it has intricate printed parts, with spring-loaded tripwires connected to an electric fuze.
1/1
GrandpaRoy2's tweet image. Ukrainian volunteer units make a complex improvised mine for dropping from heavy drones, inspired by the POM-2  mine.
Called “K2” or “POM-110” by the Russians, it has intricate printed parts, with spring-loaded tripwires connected to an electric fuze.
1/1


Michael CL Johnson reposted

Most common Soviet Cold War era hand grenades and the fragments they produce

safarpub's tweet image. Most common Soviet Cold War era hand grenades and the fragments they produce
safarpub's tweet image. Most common Soviet Cold War era hand grenades and the fragments they produce
safarpub's tweet image. Most common Soviet Cold War era hand grenades and the fragments they produce
safarpub's tweet image. Most common Soviet Cold War era hand grenades and the fragments they produce

Michael CL Johnson reposted

Blast difference between a soviet hand grenade (i think F1 but not fully sure , too blurry) and a RGT-27S2 thermobaric grenade


Michael CL Johnson reposted

A total disassembly of the main charge of the PG-7VR tandem shaped-charge rocket. The explosive lens (also known as a wave shaper) is an inert block that forces the blast wave to travel around the edges before focusing into a conical wave instead of a spherical wave. 1/

Ukrainian heavy drones have switched from vertical to horizontal mounts for holding 3 o 4 bombs. Here a downed heavy quadcopter had 3 PG-7R shaped-charge warheads from tandem PG-7VR rockets. A “Jonik-M” (Jonni-M) impact fuze connects to an electric detonator in the warhead base.

GrandpaRoy2's tweet image. Ukrainian heavy drones have switched from vertical to horizontal mounts for holding 3 o 4 bombs.
Here a downed heavy quadcopter had 3 PG-7R shaped-charge warheads from tandem PG-7VR rockets.
A “Jonik-M” (Jonni-M) impact fuze connects to an electric detonator in the warhead base.
GrandpaRoy2's tweet image. Ukrainian heavy drones have switched from vertical to horizontal mounts for holding 3 o 4 bombs.
Here a downed heavy quadcopter had 3 PG-7R shaped-charge warheads from tandem PG-7VR rockets.
A “Jonik-M” (Jonni-M) impact fuze connects to an electric detonator in the warhead base.
GrandpaRoy2's tweet image. Ukrainian heavy drones have switched from vertical to horizontal mounts for holding 3 o 4 bombs.
Here a downed heavy quadcopter had 3 PG-7R shaped-charge warheads from tandem PG-7VR rockets.
A “Jonik-M” (Jonni-M) impact fuze connects to an electric detonator in the warhead base.
GrandpaRoy2's tweet image. Ukrainian heavy drones have switched from vertical to horizontal mounts for holding 3 o 4 bombs.
Here a downed heavy quadcopter had 3 PG-7R shaped-charge warheads from tandem PG-7VR rockets.
A “Jonik-M” (Jonni-M) impact fuze connects to an electric detonator in the warhead base.


Michael CL Johnson reposted

A Russian plays a joke on the conscripts during the disassembly of a KPOM-2 cassette to retrieve POM-2 anti-personnel landmines for dropping from drones. He deliberately drops one, causing panic. Too bad there was no chance of explosion.

A Russian removes four POM-2 tripwire anti-personnel landmines from a KPOM-2 dispenser, for dropping individually from drones. The KPOM-2 is dispensed from ground or airborne launchers, and has a pyrotechnic delay that disperses the landmines and initiates the arming sequence.

GrandpaRoy2's tweet image. A Russian removes four POM-2 tripwire anti-personnel landmines from a KPOM-2 dispenser, for dropping individually from drones.
The KPOM-2 is dispensed from ground or airborne launchers, and has a pyrotechnic delay that disperses the landmines and initiates the arming sequence.


Michael CL Johnson reposted

Good crosscut of a RGW-90 ASM projectile

Helvegen29's tweet image. Good crosscut of a RGW-90 ASM projectile

RGW-90 anti structure

Helvegen29's tweet image. RGW-90 anti structure
Helvegen29's tweet image. RGW-90 anti structure
Helvegen29's tweet image. RGW-90 anti structure
Helvegen29's tweet image. RGW-90 anti structure


Michael CL Johnson reposted

Interestingly, in January the Lebanese Army seized the very same type of Grad rocket, painted green. The operation took place in Kouakh, near the border and about 16 km West of Qusseir in #Syria. The area, where smuggling gangs operate, is known to be a major route used by…

QalaatAlMudiq's tweet image. Interestingly, in January the Lebanese Army seized the very same type of Grad rocket, painted green.

The operation took place in Kouakh, near the border and about 16 km West of Qusseir in #Syria. 

The area, where smuggling gangs operate, is known to be a major route used by…

#Syria: the Interior Ministry has released photos of the largest weapons seizure to date in area of Qusseir (SW. #Homs), intended to be smuggled abroad (Lebanon). Around 200 Grad rockets - with a color unusual for Syria - were confiscated. This largely surpasses the previous…

QalaatAlMudiq's tweet image. #Syria: the Interior Ministry has released photos of the largest weapons seizure to date in area of Qusseir (SW. #Homs), intended to be smuggled abroad (Lebanon).

Around 200 Grad rockets - with a color unusual for Syria - were confiscated.

This largely surpasses the previous…
QalaatAlMudiq's tweet image. #Syria: the Interior Ministry has released photos of the largest weapons seizure to date in area of Qusseir (SW. #Homs), intended to be smuggled abroad (Lebanon).

Around 200 Grad rockets - with a color unusual for Syria - were confiscated.

This largely surpasses the previous…
QalaatAlMudiq's tweet image. #Syria: the Interior Ministry has released photos of the largest weapons seizure to date in area of Qusseir (SW. #Homs), intended to be smuggled abroad (Lebanon).

Around 200 Grad rockets - with a color unusual for Syria - were confiscated.

This largely surpasses the previous…
QalaatAlMudiq's tweet image. #Syria: the Interior Ministry has released photos of the largest weapons seizure to date in area of Qusseir (SW. #Homs), intended to be smuggled abroad (Lebanon).

Around 200 Grad rockets - with a color unusual for Syria - were confiscated.

This largely surpasses the previous…


Michael CL Johnson reposted

🇮🇷 #Iran - 🇮🇱 #Israel: An interesting event took place during the 12-day war between Israel and Iran, where a thief broke into a conspirative house in Tehran which was being used by Mossad agents as a drone workshop. Reports say the thief then called the police, admitting he…


Michael CL Johnson reposted

A simple new Russian electronic impact fuze is armed at drone launch when a safety is pulled out, with no arming delay. An electric match seen here or an electric detonator are initiated at impact.

A Russian demonstrates a new SBMBCh (Сбмбч) electronic FPV fuze. Similar to Ukrainian fuzes, it apparently has both remote detonation for air burst, and a “whisker” wire contactor for impact detonation. t.me/gortenziyafpv/…



Michael CL Johnson reposted

This Russian says to unscrew the striker screw to disarm the Ukrainian “Gingerbread” improvised anti-personnel landmine. If his comrades follow this advice it will likely push the screw into the primer as the thin printed casing flexes, and blow both their hands off.

A Russian examines a broken Ukrainian “Gingerbread” drone-dropped improvised anti-personnel landmine. When stepped on the printed shell compresses, driving a screw into a primer capsule and exploding the 30g of C4 or similar explosive. He warns they are hard to see in the grass.

GrandpaRoy2's tweet image. A Russian examines a broken Ukrainian “Gingerbread” drone-dropped improvised anti-personnel landmine.
When stepped on the printed shell compresses, driving a screw into a primer capsule and exploding the 30g of C4 or similar explosive.
He warns they are hard to see in the grass.


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