Tuesday, April 1, 2025

Russo-Ukrainian War: The Tokarev TT-33 Pistol

Source: The Ministry of Defense of Ukraine

     Some small arms simply refuse to disappear into history and the Russo-Ukrainian War has seen a multitude of old infantry weapons being used by both sides. From pre-WW2 PM1910 Maxim machine-guns to WW2 Soviet PTRD-41 anti-tank rifles, both the Ukrainian forces as well as Russian Federation forces are using vintage weapons that have seen conflict for decades. In part, this is simply due to the vast quantities these weapons were made in which has seen them remain in use. For example, the Mosin-Nagant M1891 bolt-action rifle seen in use by pro-Russian separatists had been produced from 1891 to 1973 with over 37 million rifles having left Soviet factories. Another venerable small arm which was built in very large numbers and remains in service around the world is shown here in the hands of soldiers belonging to the 118th. Mechanized Brigade: the Tokarev TT-33.

     The TT-33 was accepted for service by the Soviet Army in 1933 and it was a modernization of the earlier TT-30 pistol. The primary changes were to simplify manufacture (for example, using a one-piece frame) and reduce the production cost. However, the hammer/sear firing mechanism was updated to be easier to both construct and maintain. All told, some 1.6 million pistols (TT-30 and TT-33 combined) were built by Soviet manufacturers from 1930 to 1955.

     Empty, the TT-33 weighs 1.9 pounds and it is chambered for the 7.62x25mm Tokarev round. However, there is a Russian civilian variant of the TT-33 chambered for the non-lethal 10x33mm self-defense cartridge. The TT-33 is a single-action pistol and uses a short recoil operated, locked breech action. There is no external safety on the TT-33 which makes keeping a round in the chamber a risky proposition. Thus, the TT-33 requires the firer to pull the slide back to chamber a round though this is not easy thanks to a stiff recoil spring. The muzzle velocity is 1,378 feet per second and the effective range is 50 yards. The TT-33 is fed from a 8-round detachable box magazine. Standard sights is a front blade and a rear notch.

     The TT-33 was replaced by the 9x18mm Makarov pistol (PM) in 1951 as the Soviet military's standard pistol.


Monday, March 31, 2025

Russo-Ukrainian War: The GAZ-69

Source: Reddit

     The sad state of the Russian Federation's inability to adequately supply front line troops with logistical vehicles has seen the deployment of mules to some units but more often than not, Russian troops commandeer whatever they can find that has wheels. Case in point is this vehicle, a civilian GAZ-69 taken into service by a Russian unit and fitted out with a crude anti-drone metal screen arrangement. Development of the GAZ-69 began in 1946 and after trials and acceptance, production of the GAZ-69 commenced in 1953. It remained in production until 1972.

     The 2.4-ton GAZ-49 is powered by a modified M-20 straight-4 engine that was used in the GAZ-20 “Pobeda” (“Victory”) passenger car. Developing 55 horsepower, the M-20 is mated to a 3-speed manual transmission. The maximum road speed is 55 miles per hour. The GAZ-69 has two fuel tanks with a 12 gallon tank underneath the floor and as one can see in the photograph, the other is a 7 gallon tank under the passenger seat. On average, the GAZ-69 consumes around 3.7 gallons for every 62 miles so a maximum cruise range is somewhere in the vicinity of 325 miles.

     The GAZ-69 is not armored and besides the front driver and passenger seats, there are two folding benches in the back for a total seating capacity of six passengers. One of the folding benches can just be seen behind the passenger seat. There would be a passenger and driver side door but neither is present on this vehicle. It is a good possibility that the doors were removed to allow the crew to quickly evacuate the vehicle in case of attack. The side mirrors are not of the type used on the GAZ-69 nor does the GAZ-69 have a roll bar. These were added on by the unit whom this vehicle belongs to.

     Other features of the GAZ-69 include spring suspension with double-acting shock absorbers, single-plate dry clutch, drum brakes, canvas top, and canvas upper sides (which would be on the doors). There is also a heater but it only works when the vehicle is in motion.


Tuesday, March 25, 2025

Russo-Ukrainian War: Supacat HMT 600 w/ ASRAAM

Source: Ministry of Defense of Ukraine

     In February 2024, a video appeared online showing this vehicle, a British Supacat manufactured 6x6 HMT 600 (High Mobility Transporter) which is fitted with a launch system for the British ASRAAM (Advanced Short Range Air-to-Air Missile; AIM-132 in U.S. service) short range missile. It was originally believed this was the British Gravehawk SAM system but more recent reports state the pictured “FrankenSAM” is not Gravehawk. The final Gravehawk system is fitted within a standard shipping container which is transported by a Leyland DAF 8x8 DROPS (Demountable Rack Offload and Pickup System) truck. It uses Soviet-era Vympel R-73 missiles that are utilized by Ukrainian Air Force fighters as short range AAMs (Air-to-Air Missiles). As there is a surplus of R-73 missiles (NATO reporting name AA-11 Archer) due to the fact air-to-air combat between Ukrainian and Russian jets is rare, the R-73 is seeing use as a SAM.

     However, the launcher on the Supacat HMT 600 is very similar to the one used on the Gravehawk, down to the shiny bolts that hold it together. In addition, the mast mounted sight is nearly identical to the one used on the Gravehawk. So, it is very possible that some of the equipment and apparatus seen here on the Supacat HMT 600 was incorporated into the final Gravehawk system.

     Returning to the ASRAAM, it entered service in 1998 and it uses a dual-burn, high-impulse solid fuel rocket motor that can accelerate the ASRAAM to speeds exceeding Mach 3 (2,300 miles per hour). The maximum range around 30 miles. For a warhead, the ASRAAM has a 22 pound HE-FRAG (High-Explosive Fragmentation) payload and it can be triggered by one of two means: proximity fuze or impact. The ASRAAM uses LOAL (Lock-On After Launch) which means it can be launched and the onboard inertial guidance system will guide the missile towards the target, making adjustments as necessary to ensure a hit. There looks to be a Chess Dynamics Hawkeye optical suite which provides targeting, tracking, and target identification for the operator. The suite can be used with the ASRAAM to bring it to bear on a target. Speaking of targets, the ASRAAM is primarily deployed against Russian drones, loitering munitions, and cruise missiles.

     As for the HMT 600, it is powered by a Cummins 6-cylinder diesel engine developing 180 horsepower and this provides for a top road speed of 75 miles per hour. The engine is paired to a Allison 5-speed automatic transmission. 53 gallons of fuel provide for a maximum cruise range of 435 miles. The cab is armored though to what level isn't stated in Supacat literature. It is also mine-resistant, in part due to the high wheelbase. Other features include ABS (Anti-lock Brake System), power steering, adjustable ride height, and four-wheel drive. As optional items, the HMT 600 can be fitted with runflat tires, self recovery winch, smoke grenade launchers, a RWS (Remote Weapons Station) mount, and IR lights.

Sunday, March 23, 2025

Russo-Ukrainian War: The Panzerhaubitze 2000 155mm SPH

Source: Ministry of Defense of Ukraine

     Perhaps the most advanced SPH (Self-Propelled Howitzer) in use by Ukrainian artillery units is the German designed and built Panzerhaubitze 2000 (PzH 2000; Armored Howitzer 2000). This particular PzH 2000 is being operated by the 43rd. Artillery Brigade “Taras Triasylo”. Developed by KNDS Deutschland and Rheinmetall, the PzH 2000 entered service in 1998. Ukraine has been provided, to date, with 28 PzH 2000 of which eight came from Dutch stocks and the remainder from Germany. Crew training commenced in May 2022 with the first deliveries of the PzH 2000 arriving in Ukraine starting in late June 2022. As of March 23, 2025, one PzH 2000 has been destroyed with another damaged.

     Power for the 57-ton PzH 2000 comes from a MTU MT881 Ka-500 diesel engine that develops 986 horsepower and this is paired to a Renk manufactured HSWL284C transmission. This provides for a maximum road speed of 41 miles per hour and off-road, terrain depending, up to 28 miles per hour can be achieved. Enough on-board fuel is carried to give the PzH 2000 a maximum cruise range of 260 miles.

     Of course, the crown of the PzH 2000 is its 155mm L52 howitzer and the automation and integration that surrounds it. The 4-man turret provides for a full 360 degrees of traverse while the gun mount permits for a maximum of 65 degrees of elevation and 2.5 degrees of depression. Housed within the hull is a magazine holding 60 rounds of ready projectiles and in the turret is a fully automatic ammunition handling system that draws projectiles from the magazine and loads them via a transfer arm and pneumatic flick rammer. In the back of the turret (behind blast doors) are the propellant bag charges, 288 of them, which are handled by the two loaders. The propellant compartment is air-conditioned to keep the bags at optimal temperature. The fuzing for each projectile is automatically set prior to loading into the breech. A trained crew can burst fire 3 rounds in ten seconds, empty half the magazine in five minutes, or fire the entire 60 rounds in ten minutes.

     In order to provide pin-point accuracy, the PzH 2000 utilizes a fire control computer (FCC) with a integral ballistics calculator. The FCC is coupled to a navigational system and secure channel communications node which can receive target data from higher echelon units or artillery control systems. Using an electrical gun laying system, the howitzer can be brought to bear on target automatically using coordinates provided from the FCC. It should be noted that gun laying and loading can be manually done if there is some failure in the automatic systems. Also, the gunner or commander can utilize a semi-automatic firing mode if desired. If need be, the PzH 2000 has an optical sight for the gunner to allow him to engage targets in direct fire out to 1.2 miles.

     Range for the PzH 2000 depends on the 155mm projectiles being used. The basic German DM121 HE-FRAG (High-Explosive Fragmentation) projectile can be shot to a range of 19 miles while the South African produced M1711 HE-FRAG base bleed projectile can attain a maximum range of 25 miles. Finally, the Rheinmetall M2005 V-LAP (Velocity-enhanced, Long-range Artillery Projectile) is a rocket-assisted projectile (RAP) that can reach out to 34 miles. The PzH 2000 can also fire the U.S. made M982 Excalibur guided munition with the M982A1 being able to strike targets at 31 miles. Finally, the PzH 2000 can also fire the Leonardo (an Italian company) Vulcano GLR (Guided Long Range) projectile out to 43 miles. The FCC and fire control system (FCM) permits the PzH 2000 to conduct Multiple Round Simultaneous Impact (MRSI) fire in which several rounds are fired in a sequence which will have all fired rounds impacting the target at the same time. A “shoot and scoot” fire mission can be done in 1 minute, 40 seconds. This includes 25 seconds to get into action, 1 minute to fire 10 rounds, and 15 seconds to secure the PzH 2000 and move out.

     For protection, the PzH 2000 uses welded steel armor. Though the exact thickness is classified, it is said that the hull and turret can resist up to and including some 14.5mm heavy machine-gun ammunition. The turret roof can be fitted with passive add-on armor (seen in the photograph) to provide a measure of protection against drone-dropped munitions and light caliber mortar rounds (60mm for example). Other protective features include internal spall liners, automatic fire extinguishing systems in the crew and engine compartments, NBC (Nuclear Biological Chemical) protective system, and optional smoke grenade launchers (also seen here). The PzH 2000 can also be fitted with a machine-gun for local defense.

     Other systems in the PzH 2000 include a laser range finder, day/night optics for the driver and commander, APU (Auxiliary Power Unit) to power systems with the engine off, GPS navigation system, BITE (Built-In Test Equipment) to rapidly assess vehicle status, and a phased array radar in the front upper hull to measure muzzle velocity.

     In Ukrainian service, the PzH 2000 quickly showed that it was not capable of withstanding the volume of fire that typifies the Russo-Ukrainian War. According to KNDS/Rheinmetall, 100 rounds every 24 hours is considered the maximum the PzH 2000 can handle. As an example, a LawfareMedia.org article published on April 3, 2024 stated that at a minimum, Ukrainian artillery units need at least 20,000 shells per day, per gun tube, for them to maintain operational capacity. In 2023, Ukrainian artillery fired between 4,000 to 9,000 rounds per day (the Russians tripled or even quadrupled that). Thus, PzH 2000 equipped units often fired well over the 100 projectile limit and this led to breakdowns of the automatic loading system. Since repairs such as this could not be done in Ukraine, it meant shipping the PzH 2000 vehicle(s) to Lithuania and the consequence was the PzH 2000 was out of action for weeks. Another issue was that some Ukrainian artillerymen “hot loaded” projectiles which meant using powder charges over the maximum limit in order to boost range but induced more rapid wear on the gun barrel, breech, and recoil mechanisms.


Friday, March 21, 2025

Russo-Ukrainian War: The Yazicilar Duello PXD Shotgun

Source: inukraine.official on Instagram

     A screen capture from a smartphone video showing a Ukrainian soldier armed with what looks to be a Duello PXD 12-guage pump-action shotgun. Made by Sibergun, a subsidiary of the Turkish company Yazicilar Av, the PXD series (and CSSP series) can be identified by the polymer buttstock which has a integral holder for four shotgun shells. This soldier has an extended shell tube and the shotgun is not fitted with optics or rails outside of the basic iron front post sight that normally comes with the weapon.

     It should be mentioned that another Turkish shotgun manufacturer, Pardus, also offers their Pardus PXD pump-action tactical shotgun which has almost the same exact buttstock but the Pardus PXD uses a magazine feed rather than the usual underbarrel tube magazine. The Pardus PXD can use 2-, 5-, and 10-round magazines.

     The Duello PXD is a civilian shotgun, one of many types of shotguns being used by Ukrainian forces to combat drones.


Monday, March 17, 2025

Russo-Ukrainian War: The KS-19 100mm Anti-Aircraft Gun

Source: Reddit

     Another venerable artillery piece is shown here, the KS-19 100mm anti-aircraft gun. First accepted into service in 1948, the KS-19 was the long range companion to the AZP S-60 57mm anti-aircraft gun, the latter engaging targets at short- to medium ranges. In fact, both weapons shared the same SON-9 (NATO reporting name Fire Can) fire director radar while in Soviet service. The advent of SAMs (Surface-to Air Missiles) saw the KS-19 phased out with no attempt to keep it viable with modern target detection and fire control systems as has been done with the AZP S-60. Thus, the Soviets sold off most of the approximately 10,500 KS-19 to friendly client states and the gun still sees service to this day with a little over a dozen countries. The KS-19 first appeared in the Russo-Ukrainian War soon after the start of the conflict when the Russians captured a number of Ukrainian KS-19 guns that had been in storage in the city of Balakliia, Kharkiv Oblast. Lacking ammunition, the Russians set up some of the KS-19s as decoys. The Ukrainians retook the city on September 10, 2022 during the Kharkiv counteroffensive and recovered the KS-19 guns. In the spring of 2023, the KS-19 next appeared in Ukrainian service as ammunition had been acquired (or located from stocks). Since then, the KS-19 has shown up in social media from time to time with some of the guns mounted on heavy trucks. The KS-19 is deployed as a quick firing artillery gun, delivering indirect fire (or even direct fire) against enemy targets.

     The towed KS-19 weighs in at 10 tons and so once it is set up in a firing position, it cannot be manhandled around. In Soviet service, the KS-19 was usually towed by a fully tracked AT-S or AT-T prime mover but any truck with a compatible towing ability can be used as well. Maximum tow speed on roads is 25 miles per hour. It takes time to both set up the KS-19 as well as prepare it for moving which makes it vulnerable to counter-battery fire. This is one reason gun trucks using the KS-19 have been put into service to provide more rapid mobility. The gun uses a semi-automatic, horizontal sliding wedge breech block which means that after firing, the empty shell case is automatically ejected from the breech. The KS-19 has a power rammer and a well trained crew (a full crew is 15 men though as few as 7 men can man the KS-19) can manage a maximum of 15 rounds in a single minute. A more sustained rate of fire is 9 rounds per minute while a hour long bombardment is between 1 to 2 rounds per minute. This allows for barrel cooling. The KS-19's gun mount permits a maximum elevation of 85 degrees and no more than 3 degrees of depression. The mount sits on a turntable which permits 360 degrees of traverse. While moving the gun is manual, the traverse and elevation controls are powered. 

     The photograph here shows a KS-19 in a dug-in position and it has a rather worn looking appearance. The two seats are for the gunners who control the gun's position. The dual hand cranks are for the traverse while the single hand crank is for elevating and depressing the gun barrel. The squarish box-shaped components contain dials which contain the azimuth and elevation indicators and for the one at the rear, the fuze setting apparatus (which would be used if the KS-19 was engaged in anti-aircraft fire). The telescopic sight for direct fire is visible along with the corresponding round aperture in the gun shield. Right behind it is the panoramic periscope sight used for indirect fire. The top half of the gun shield can be lowered down with the shield thick enough to only provide protection against light small arms calibers and shell splinters.

     When firing the UOF-412 HE (High-Explosive) round, the KS-19 can lob the shell and its 3 pound TNT warhead out to a maximum of 12 miles. The shell uses a V-429 series fuze and a NDT3 propelling charge. If forced to combat enemy armor, the KS-19 can fire the BR-412B AP-T (Armor-Piercing Tracer) round that has a maximum range of 2.5 miles but an effective range of .6 of a mile where the BR-412B can penetrate up to 185mm of armor. The BR-412B uses A-IX-2 explosive and also utilizes the NDT3 propelling charge.

     It is not known exactly how many KS-19 are in active service with Ukrainian forces but as of March 17, 2025, none have been reported as lost by the Oryx website.


Saturday, March 15, 2025

Russo-Ukrainian War: The 57mm AZP S-60





Source: inukraine.official on Instagram

     The Russo-Ukrainian War is, for anyone that follows the weapons deployed by both Ukraine and Russia, a war of old and new arms technology. Both sides utilize weapons that saw manufacture in World War Two and built in the following decade past 1945. One example is shown here, the AZP S-60 57mm anti-aircraft gun. Standing for Avtomaticheskaya Zenitnaya Pushka (Automatic Anti-Aircraft Gun), the AZP S-60 first appeared in prototype form in 1946 and was accepted for service in 1950. Originally designed as a short- and medium range anti-aircraft gun, it is woefully obsolete in that role today without modern upgrades such as fully powered gun controls, improved ammunition,k and guidance systems. Instead, both the Ukrainians and the Russians are primarily using the AZP S-60 on ad-hoc self-propelled mountings as a rapid fire, short range artillery gun.

     Normally, the AZP S-60 is mounted on a four-wheel carriage with outriggers to stabilize the platform when in action. The centrally mounted turntable permits 360 degrees of traverse while the gun mount allows for 85 degrees of maximum elevation and 4 degrees of depression. The combat weight of the AZP S-60 is five tons and a full crew consists of seven men. A 7mm thick gun shield offers a measure of protection to the gun crew from light small arms calibers and shell splinters. Typical gun crew in action is four men of which three are provided with seats (commander and two gunners to operate the power assisted, manual traverse and elevation/depression controls) and a loader. The remainder of the men are typically ammunition handlers, pushing clips to the loader. Speaking of clips, the AZP S-60 is fed from four-round clips which are pushed into a horizontal loading tray on the left side of the weapon. A well trained crew can maintain a sustained rate of fire of 70 rounds per minute though the AZP S-60 is capable of 120 rounds per minute.

     The series of photographs here are screen captures from two different videos showing Ukrainian AZP S-60 crews in action, both posted on social media in February and March 2025. The first two show one of the self-propelled mountings, this particular one using a KamAZ-4310 6x6 truck. This is a typical mount, simply placing the gun and turntable onto a flat deck. The gun shield's upper half is folded down to lower the profile while to the left of the image (as one looks at it), the seat for the gunner can be seen along with the dual controls that raise and lower the gun. It is this gunner who fires the AZP S-60 via a foot trigger. Wooden crates of ammunition are lashed down to the bed. On the roof the KamAZ-4310's cab are at least two drone jammers. The next image shows the gun in action. The loader and commander are holding onto the traverse controls as the gun recoils and causes the truck to rock. The seat for the gunner who would have managed the traverse and the commander's seat (in the middle) have been removed though their mounts can be seen by the feet of the commander. As the gun is being used for indirect fire, to the right of the image is a panoramic periscope sight to enable the gunner to aim the weapon. Also of note, just behind the loader is a ready rack with a full clip for him to grab and load once the weapon is empty.

     The second set show a AZP S-60 crew from the 112th. Territorial Defense Brigade preparing their gun for action while on a firing range. They are firing the UOR-281U HE-T (High-Explosive Tracer) ammunition. The sequence shows one of the ammunition handlers pushing the 4-round clip into the breech while the last image shows the loader cocking the charging handle. At this point, the weapon is ready to fire. Using such ammunition, the maximum range is around 3.8 miles.

Wednesday, March 12, 2025

Russo-Ukrainian War: The BTR-70DI Defender APC

Source: Ministry of Defense of Ukraine

     A Ukrainian BTR-70DI “Defender”, also known as the BTR-7 “Defender”, belonging to the 151st. Mechanized Brigade. Photographed during a training exercise early in 2025, the BTR-70DI is a Ukrainian produced modernization of the Soviet BTR-70 8x8 armored personnel carrier (APC) and first appeared in 2011. Though Ukroboronprom offers refurbished BTR-70 vehicles in its export catalog, Ukroboronprom emphasizes the BTR-70DI with its upgrades and ability to be fitted with optional weapon fits that make it more lethal than the BTR-70 from which it is derived.

     Externally, the BTR-70DI looks much like the BTR-70 except that the hull was adapted to use the side hatches of a BTR-80. The BTR-70 does not have side hatches which means the troops within need to dismount by climbing out of roof hatches then clamber down the back or sides of the vehicle. The BTR-80 style side hatches are split. The upper portion of the hatch opens to the left, offering a small measure of protection as soldiers exit. The bottom half drops down, acting as a step. Total crew is three men (commander, driver, gunner) and up to seven infantrymen.

     “Under the hood”, the 13.6-ton BTR-70DI swaps out the two Soviet era 3M3-4905 petrol engines for two FPT Iveco Tector 4-cylinder, inline diesel engines with each generating 150 horsepower. The engines are paired to a mechanical transmission with a 6-speed gearbox. On roads, the BTR-70DI can achieve a top speed of 62 miles per hour while off-road (terrain depending), the maximum speed is 37 miles per hour. The BTR-70DI retains the amphibious ability of the BTR-70 with its rear mounted water jet able to propel the BTR-70DI to a top water speed of 6 miles per hour. Enough fuel is carried to provide for a maximum cruise range of 497 miles.

     The armor thickness of the BTR-70DI is classified. It uses RHA (rolled homogeneous armor) but one can assume the level of protection is similar to the BTR-70 and thus armor thickness frontally is 9mm thick while the sides and rear support 7mm thick armor as does the roof and floor. However, the floor is reinforced to STANAG 4569 Level 3 protection, allowing the BTR-70DI to withstand mines with up to 18 pounds of explosive. The turret has 6mm thick armor along the front arc. Because of the sloping on the front of the vehicle, the effective thickness of the armor is able to resist up to 12.7mm ammunition. The remainder of the protection is good against some small arms calibers and shell splinters. Other protective equipment includes an automatic fire extinguishing system and a filter ventilation system for NBC (Nuclear Biological Chemical) defense. As an optional piece of defensive equipment, the BTR-70DI can be fitted with the Zaslon APS (Active Protection System) which can detect incoming anti-tank missiles.

     The “out of the box” armament is shown here, consisting of BPU-1 turret fitted with a KPVT 14.5mm heavy machine-gun and a co-axial PKT 7.62mm machine-gun. The usual ammunition load is 500 rounds for the KPVT and 2,000 rounds for the PKT. The guns sit within a biplanar, electromechanical stabilizer mount with elevation and traverse controls being electromechanically powered. If need be, the turret and weapons can be manually controlled. The gunner is provided with the “Track” sighting system consisting of a day/night sight and laser rangefinder. Both the vehicle commander and gunner share the video feeds provided by the “Panorama” observation system that is tied into the “Track” system. This is in addition to the more standard TNPO-115 style vision blocks. The effective range of the KPVT is 1.9 miles with a maximum range of 2.5 miles. Rate of fire is 600 rounds per minute. The B-32 API (Armor-Piercing Incendiary) round can penetrate 32mm of RHA at 500 meters. Of course, Ukroboronprom offers two optional weapon load-outs.

     The first option is the Bug RWS (Remote Weapon Station) and this retains the KPVT and PKT but adds a AG-17 Plamya 30mm automatic grenade launcher (with 87 rounds) and two rails for the Barrier ATGM (Anti-Tank Guided Missile). Also known as the Stugna-P or Skif, the Barrier ATGM can be guided via laser beam or set to engage automatically upon launch. Maximum range in daylight is 3 miles while at night, 1.9 miles. The 130mm RK-2S tandem-charge HEAT (High-Explosive Anti-Tank) missile's warhead can drill through 1,000mm of RHA armor after explosive reactive armor (ERA). The Bug RWS has two Barrier ATGMs on the rails with another two missiles carried within the BTR-70DI for reloading. The PKT machine-gun's ammunition quantity drops to 1,500 rounds.

     The second option is the Ingul RWS and this replaces the KPVT with a ZTM-2 30mm automatic cannon, the Ukrainian produced version of the Russian Shipunov 2A42. 360 rounds are provided and the ZTM-2 has a rate of fire as low as 200 rounds per minute up to 800 rounds per minute. The ZTM-2 has a dual feed, allowing for a mix of ammunition. The usual is the 3UBR6 APBC-T (Armor-Piercing, Ballistic Cap – Tracer) round that can defeat 20mm of RHA at a 60 degree slope at .4 of a mile while the 3UOF8 HEI (High-Explosive Incendiary) round can be fired out to 2.5 miles. The co-axial PKT is retained with 1,500 rounds of ammunition as well as two rails for the Barrier ATGM (two missiles ready to fire, two reloads stored in the vehicle). A Tucha smoke discharger system is fitted to the front of the turret face with two banks of three smoke grenade launcher tubes.

     Other equipment includes an air-conditioning system for crew comfort, a R-173M radio station, R-173Pv radio receiver, AVSK intercom set for the crew, independent suspension, and all-wheel drive.

Monday, March 10, 2025

Russo-Ukrainian War: The Lofting Attack Technique

Source: Reddit

     A tactic being used by both Ukrainian and Russian pilots when firing unguided rockets is called “lofting” and that technique is being illustrated here by a Ukrainian Mil Mi-8 (NATO reporting name Hip) helicopter firing S-13 122mm rockets from its B-13L launchers.

     To execute a lofting attack, the helicopter (or ground attack jet) flys low to the ground to make it a difficult target for anti-aircraft gun fire and/or MANPADS (Man Portable Air Defense System). When the pilot gets near the release point, he pulls up sharply while ripple firing the rockets. Once the rockets  are on their way to the target, the pilot turns sharply away while deploying flares (and/or other countermeasures) and returns to low level flight to egress the area.

     Lofting has two main benefits. The first is that it extends the range of the rockets. The most common unguided rockets used by both the Ukrainians and Russians is the 80mm S-8 rocket and to a lesser degree, the 122mm S-13 rocket. The maximum range for the S-13 (which depends on the type) is between 1.4 miles up to 3.7 miles. Lofting can greatly increase this range (sometimes doubling the range) which brings about the second benefit, keeping the helicopter or jet further away from enemy air defense.

     The S-8 and S-13 are direct fire rockets, meaning the helicopter or jet has to fly at a higher altitude and in a relatively straight line in order to unleash the rockets against the target and achieve hits. Of course, this leaves the helicopter or jet vulnerable to anti-air defenses during the attack run. If firing direct within the rocket's maximum range, the rockets maintain a tighter grouping when they hit the target area. Lofting, however, gives the rockets more time to spread out due to their longer flight time. This reduces the number of rockets that strike the intended target. In addition to the fewer number of rockets impacting on target, unless the loft is executed perfectly, the rockets may overshoot or undershoot the target. This is not so much of an issue if the intent is to simply bombard an area without any specific target in mind.

     Despite the lack of accuracy, it is pretty clear that lofting will continue to be a common practice by both sides in order to preserve air assets which are not easily replaced (especially on the Ukrainian side) but more importantly, the crews themselves.


Saturday, March 8, 2025

Russo-Ukrainian War: The RBU-6000 Smerch-2

 

Source: Reddit

     Early in 2023, Russian Federation forces were seen fitting armored vehicles with weapon systems taken from Russian naval ships. This was taken as a sign that Russian tactics, which took (and still do) a toll on armored vehicles, saw the inability for the Russian military to replace such losses. Thus, units took it upon themselves to scavenge various naval weapons with the most common being the 2M-3 turret that mounts two 25mm 110-P autocannons. Another relatively “popular” naval weapon seeing use is the RBU-6000 Smerch-2 which is a 12-tube, 212mm anti-submarine rocket launcher and this is shown here, burned out along with the T-72 tank it is mounted upon. The vehicle was destroyed on August 1, 2024 by an FPV drone from the Drone Battalion, 3rd. Assault Brigade. The location is Ploshchanka, Luhansk Oblast.

     The RBU-6000 has been in service since 1961 and can be found on a host of Russian warship classes. When fitted to ships, the RBU-6000 enjoys the benefits of the Burya FCS (Fire Control System) which itself is tied into the vessel's sonar system (for munition guidance), power aiming (traverse, elevation, and pitch/roll stabilization), and a below-deck automatic loading system from either a 72 or 96 round magazine. Of course, being mounted onto the hull of a T-80 tank means the RBU-6000 has to be manually aimed and loaded by the crew. The RBU-6000 can be traversed 180 degrees to the left or right of center, elevated to a maximum of 65 degrees, and depressed to a total of 15 degrees. Without power, the manual rate of traverse is 4 degrees per second.

     The RBU-6000, as an anti-submarine weapon, fires two types of rockets. The first is the 250 pound RGB-60 and this is a unguided rocket with a impact or proximity fuzed 50 pound explosive warhead. The RGB-60 has a variable range depending on how far or close the enemy submarine is. The minimum range is .2 of a mile to a maximum of 3.4 miles. Maximum depth is .3 of a mile. It is presumed that the Russians are utilizing the RGB-60 in their land-launched RBU-6000 systems as it is the least sophisticated munition the RBU-6000 fires and probably more plentiful. Plus, the RGB-60 has a larger warhead and a longer range compared to the other rocket the RBU-6000 fires. That other rocket, the 90R, is a guided weapon and uses a 43 pound shaped charge that is meant to actually strike the submarine or torpedo rather than act as a depth charge. However, it can be fitted with a proximity fuze if needed. Minimum range of the 90R is .4 of a mile to a maximum range of 2.7 miles. Regardless of the rocket type, the RBU-6000 can be set to fire a single rocket at a time, all 12 rockets simultaneously, or ripple fire 2, 4, or 8 rockets at a time.

     The tank, which appears to be a T-72B, likely had a non-operational turret which was removed and the RBU-6000 (replete with its naval vessel base) put in its place. The crew fitted anti-drone screens to the top of the launcher and what looks like the engine decking as well. Slat armor panels are on the sides and rear as well as flat upon the front glacis plate. What looks like a work platform can be seen on the front. The RBU-6000 was no doubt electrically fired using a length of cabling and aiming was likely done using the common PG-1 series panoramic telescope. However, the rather short range of the RBG-60 rocket means any vehicle mounting the RBU-6000 has to be close to the front line, making it vulnerable to attack. As a comparison, the BM-21 122mm MLRS (Multiple Launch Rocket System) can fire the basic 9M22U HE-FRAG (High Explosive Fragmentation) rocket out to 12 miles. This is a possible reason some of the RBU-6000 launchers are fitted to tanks such as the T-72 seen here but also T-80 tanks.

Wednesday, March 5, 2025

Russo-Ukrainian War: The DShK M1938 "Dushka"

Source: Regional Directorate of the Territorial Defense Forces South

     A soldier of a territorial defense brigade posing for the camera with his “Dushka”, the venerable DShK M1938 12.7mm heavy machine-gun. First introduced in 1938, the DShK (standing for Degtyarov-Shpagin Krupnokaliberny; Degtyarov-Shpagin Large-Caliber) remains in service with dozens of military forces around the world and it has seen combat starting in World War Two and in just about every military conflict since then, to include the Russo-Ukrainian War. This particular make is the DShKM, evidenced by the muzzle brake, which appeared in 1946. When production ended in 1980, over 1 million DShK machine-guns had been built and to date, it has yet to be fully replaced in Russian Federation service despite newer weapons such as the NSV and Kord machine-guns. In addition to ground mounts, the DShK is also used on armored vehicles and tanks as a anti-aircraft machine-gun.

     The DShKM seen here is utilized by a rapid reaction anti-drone unit, hence being mounted in the bed of a pick-up truck. The locally fabricated pedestal mount permits traverse and elevation and it even has minimal gun shield. Usually, the DShK uses a 60-round metal ammunition can and this constitutes a single belt (which is usually 50 rounds). However, when engaging drones such as the Shahed-136, volume of fire is a factor in scoring a successful hit. As such, a single belt can be expended very quickly and in some cases, the drone(s) can leave the kill zone quickly, meaning the DShK is out of action while a new belt is fed into the weapon. Here, the fabricator of the gun mount adapted a 20 liter (5 gallon) metal fuel canister to act as an extended ammunition can. From appearances, it can hold up to five ammunition belts for a ready ammunition count of 250 rounds.

     Empty, the “Dushka” weighs 74 pounds and it uses a gas-operated flap-locking action. The 5.4 foot long DShK has a cyclic rate of fire of 600 rounds per minute but a practical rate of fire is between 100 to 200 rounds per minute. The most often used round is the B-32 steel-cored API (Armor-Piercing Incendiary) bullet which, despite being introduced in 1936, remains in production. The B-32 can penetrate 20mm of rolled homogeneous armor at 500 meters. As such, the DShK is a threat to lightly armored vehicles. A similar round is the BZT-44 APIT (Armor-Piercing Incendiary Tracer) and this is often mixed into ammunition belts of B-32 rounds. Another round used is the MDZ incendiary bullet and this might also be mixed with API ammunition. The maximum effective range is 1.2 miles with a maximum range of 1.6 miles.

Tuesday, March 4, 2025

Russo-Ukrainian War: The BRM-1K Korshun

Source: Public Affairs, 117rd. Heavy Mechanized Brigade

     A Ukrainian BRM-1K Korshun belonging to the 117th. Heavy Mechanized Brigade. The BRM-1K is a variant of the venerable BMP-1 IFV (Infantry Fighting Vehicle) which first entered service in 1966. The Korshun (“Kite”) appeared in service after 1973 and is designed as a battlefield reconnaissance vehicle, equipped with an array of apparatus to allow the crew within the ability to gather a wide range of information.

     The 13-ton BRM-1K is powered by a UTD-20 6-cylinder, water-cooled diesel engine that develops 300 horsepower. It is paired to a manual transmission with a 6-speed gearbox (5 forward, 1 reverse). Top road speed is 40 miles per hour while off-road in suitable terrain, the maximum speed is 28 miles per hour. Like the BMP-1, the Korshun is amphibious and in calm water, a top speed of 5 miles per hour can be achieved. A total of 122 gallons of diesel fuel are carried which provide the Korshun with a maximum road range of 372 miles and off-road, 236 miles. 

     For armament, the Korshun retains the same 73mm 2A28 Grom low-pressure, smoothbore gun. The gun mount provides a maximum of 30 degrees of elevation and 4 degrees of gun depression while the turret permits 360 degrees of traverse. As the Korshun is not meant to engage the enemy unless forced to, the Korshun only carries 20 rounds of ammunition. By comparison, the BMP-1 carries 40 rounds. The gunner is provided with a 1PN22M gunsight. The two most common projectiles are the PG-15V HEAT (High-Explosive Anti-Tank) and the OG-15V HE-FRAG (High-Explosive Fragmentation) munitions. The Korshun has no provision for ATGMs (Anti-Tank Guided Missiles). The PG-15V can penetrate up to 400mm of rolled homogeneous armor at a range of .8 of a mile. As for the OG-15V, it has a maximum indirect fire range of 2.7 miles and a direct fire range of .6 of a mile. Secondary armament consists of a co-axial PKT 7.62mm machine-gun which is provided with 2,000 rounds of ammunition in 250 round belts. The Korshun only has three gun ports, one on each side (towards the rear of the vehicle) with the third being in left rear door. This is one means to identify it from a BMP-1 which has three gun ports per side. Thus, the crew can employ their small arms if need be.

     The Korshun uses the same welded rolled steel armor as the BMP-1 to protect the 6 man crew (commander, driver, gunner, two radio operators, and an equipment operator). As such, the front of the hull has a maximum of 19mm of armor, between 16mm to 18mm on the sides, 16mm of armor on the rear of the Korshun, and 6mm of armor on the top. The turret supports 13mm thick frontal armor, 13mm on the sides and rear, and 6mm of armor on the turret top. As the Korshun seen in the photograph is a early production model, it lacks the fittings for the 902V Tucha smoke grenade launchers on the turret sides. However, the Korshun can inject diesel fuel onto the hot exhaust which generates a smoke screen. 

     Of course, the stock in trade of the BRM-1K is reconnaissance. In the back of the turret is a PSNR-5K (NATO reporting name Tall Mike) surveillance radar. When not in use, the dish is housed within the turret, beneath an armored cover (as shown in the photograph). When raised, the radar can detect vehicles at 4.3 miles and infantry at 1.2 miles. To enable communication between units and higher echelon forces, the Korshun has a R-123M, R-130, and R-148 radio set installed (hence, the two radio operators). Other equipment includes a ERRS-1 radio direction finder (37 mile maximum range), DKRM-1 laser range finder (5 mile maximum range), TNA-3 Kvadrat-1 (“Square-1”) navigation system, IMP-1 mine detector, PPChR radiological-chemical detection system, WPChR chemical detection system, 1G11N gyro-compass, 1T25 survey apparatus, and a pair of 1PN33B night binoculars for crew use. To power systems when the engine is off, the Koshun has a small AB-1-P gasoline powered APU (Auxiliary Power Unit) which has a 1 kilowatt output.

Monday, March 3, 2025

Russo-Ukrainian War: The M2A2 .50 Caliber HMG

Source: Oksana Chorna, 23rd. Mechanized Brigade

     A gunner of the 23rd. Mechanized Brigade on the practice range, operating a Browning M2A2 .50 caliber (12.7mm) heavy machine-gun. The M2A2 is secured onto a locally fabricated anti-aircraft pedestal mount which permits a good bit of elevation to allow the gunner to track and aim at Russian drones. The pedestal mount itself is bolted down onto the bed of a pick-up truck and from appearances, it is capable of being lowered down into the bed when not in use, permitting the tarp (seen rolled up) to cover the bed and protect the mount, M2A2, and ammunition from the elements. The M2A2 seen here is able to utilize scopes and other optics as evidenced by the rail mount on the top rear of the receiver, just forward of the trigger. To the left of the M2A2 is the ammunition can, held via a cradle secured to the mount. Based on the muzzle, the weapon is likely a U.S. Ordnance manufactured M2A2.

     The roof of the pick-up truck's crew cab has no less than five drone jammers of three different makes. It is now more the norm for Ukrainian as well as Russian vehicles to have more than one jammer. The intent is generate interference across multiple frequencies in the hope that any drone that seeks to attack the pick-up happens to be using one of the jammed channels.

For more information on the Browning M2, visit:

https://photosofmilitaryhistory.blogspot.com/2025/02/russo-ukrainian-war-m2e2-ma-deuce-50.html