S-5 rocket

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An S-5M rocket. It has a sharper nose than the original S-5 rocket and the fins do not fold back as far. S-5M 57 mm rocket.jpg
An S-5M rocket. It has a sharper nose than the original S-5 rocket and the fins do not fold back as far.
A cross section of an S-5M rocket. S-5 57mm rocket cross-section.JPG
A cross section of an S-5M rocket.

The S-5 (first designated ARS-57) is a rocket weapon developed by the Soviet Air Force and used by military aircraft against ground area targets. It is in service with the Russian Aerospace Forces and various export customers. It is based on the R4M, a German design from World War 2. [1]

Contents

It is produced in a variety of sub-types with different warheads, including HEAT anti-armour (S-5K), high-explosive fragmentation (S-5M/MO), smoke, and incendiary rounds. Each rocket is about 1.4 meters (4 feet 7 inches) long and weighs about 5 kg (11 lb), depending on warhead and fuze. Range is 3 to 4 kilometres (1.9 to 2.5 mi). [2]

Development

In 1946 the Soviet Nudelman Precision Engineering Design Bureau (then designated OKB-16) undertook technical research of unguided air to air missiles in aircraft armament. As part of the bureaus research, captured examples of the German 55mm R4M "Orkan" (Engl: Hurricane) unguided air to air missile were closely studied. After 5 years, the Soviet ministry of defense finally provided official status and funding of the project in 1951, [3] originally as part of the air-to-air AS-5 weapon system for the MiG-19. The rockets were tested in a series of configurations on MiG-15bis and MiG-17 jets, with the final tests complete on a MiG-17PF in January 1955. The tests revealed that the rockets did not perform as expected against aerial targets. The rocket ARS-57 was accepted into service in April 1955, with a military designation S-5. [3]

Apart from the Soviet Union and then Russia, S-5 rockets were produced among others in Poland. [4] As of 2013, the only producers remained Belarus and Bulgaria. [4]

S-5U

In late 2019, Russia announced it would resume production of the S-5 rocket for the first time since production ceased in 1990. The improved S-5U is 1,090 mm (3.58 ft) long and weighs 6 kg (13 lb), making it longer and heavier than the previous S-5M, though it is compatible with older rocket pods. It runs on composite propellant rather than a solid fuel motor and is spin-stabilized through four curved fins wrapped around the rocket nozzle to match its diameter when stored. Effective range remains between 0.5–4 km (0.31–2.49 mi), but lethality is increased by a heavier 0.8 kg (1.8 lb) warhead. It features a universal warhead that can penetrate 150 mm (5.9 in) of armor, explode into 500 2 g (0.071 oz) splinters, and has incendiary elements; combat efficiency is claimed to be comparable to the S-8 rocket. [1]

Description

ORO-57K launcher under MiG-19/F-6 F-6 fighter underwing rocket pod.jpg
ORO-57K launcher under MiG-19/F-6
UB-16-57UMP launchers under MiG-23 Aircraft engine MiG-23 rockets pods.jpg
UB-16-57UMP launchers under MiG-23
Su-20 with UB-32 rocket launchers Airforce Museum Berlin-Gatow 288.JPG
Su-20 with UB-32 rocket launchers

The S-5 is a 55 mm (2.2 in) calibre unguided rocket fired from a 57 mm calibre tube. It is used by fighter bombers and helicopters. It consists of a steel body containing a solid fuel rocket, and a high-explosive warhead with a mechanical impact fuse. At the rear of the rocket is an elongated exhaust nozzle, with eight attached forward folding fins. The fins fold around the rocket when it is stowed in its launch tube; they spring back as soon as the rocket leaves the launch tube. In flight, the very slightly angled fins exert a stabilizing spin to the rocket, turning at approximately 750 rpm. The solid rocket motor burns for just 1.1 seconds, during which time it covers about 300 meters (980 feet).

The S-5 is carried in rocket pods, with between four and 32 rockets. The first were ORO-57 launchers, made in variants with capacity of four, eight and 16 rockets. The most typical became the ORO-57K for eight rockets, used especially on the MiG-19. Then, beginning in the early 1960s, the typical launcher became the UB-16-57, with 16 rockets, developed in several variants, for helicopters and planes. UB stands for "universal block" (universalnyi blok), as it could be carried on conventional bomb hardpoints, "57" refers to the actual diameter of the launch tube (the diameter of the rocket plus 2 mm). The first variant and UB-16-57U had a conical forward part while the next variant UB-16-57D had a blunt forward part. Starting in 1968, the UB-16-57UMP variant was produced, with a conical forward part and five protruding inner tubes. [3] In the 1970s, the UB-32 was developed with 32 rockets, carried by heavier aircraft.

In Poland, the Mars-2 launcher for 16 rockets was developed in variants for Lim-6bis aircraft and Mi-2URN helicopters. [5] In Romania, the LPR 57 launcher for 16 rockets was developed.

Operational history

MiG-21 Lancer firing S-5 rockets. MiG-21 Lancer C firing rockets.jpg
MiG-21 Lancer firing S-5 rockets.

Afghanistan

S-5 rockets were used extensively by Sukhoi Su-25 and Mil Mi-24 aircraft in Afghanistan in the 1980s, where their effectiveness was considered poor. Pilots described the rockets fanning out after launch "like a tulip", and that the warhead was only good for "tickling the dookhi's (mujahedeen) heels". The Russian forces have shifted to higher-calibre weapons like the S-8 rocket instead. In addition the Soviet 40th Army made use of improvised launchers mounted on T-62 tanks, BTR-70 APCs and Ural-4320 trucks in a ground-to-ground role. [6]

Chechnya

S-5 and S-8 rockets were used in the First Chechen War and the Second Chechen War. These rockets were then salvaged by Chechen fighters to be used as anti-tank rocket launcher in their “Shaitan” homemade weapons. Such weapons were unpredictable, as some were made from gear shafts of Russian trucks. Also such rockets were damaged during their capture. These rockets were taken from downed Mil-24 helicopters. [7]

India

IAF MiG-21 firing its S-5 rockets over East Pakistan, 1971 1971 IAF MiG-21FL S5 rockets.gif
IAF MiG-21 firing its S-5 rockets over East Pakistan, 1971

During the 1971 Bangladesh Liberation War, four of the Indian Air Force's MiG-21FLs led by Wing Commander Bhupendra Kumar Bishnoi fired its S-5 rockets on the East Pakistani Governor's mansion in Dhaka, leading to the governor resigning immediately thereafter the attack. On 13 December, an IAF MiG-21 shot down a Pakistani F-104 Starfighter from its Ub-16 rocket pods, which fired its S-5 rockets. [8]

Israel

On Sunday, 6 January 2009, The Israel Defense Forces claimed they identified a rocket fired at Israel earlier in the day by Al-Qassan in the Gaza Strip as a Russian-made S5K. [9]

According to the IDF, the rocket fired at Kibbutz Alumim in the Negev marked the first time Izz ad-Din al-Qassam Brigades have used this type of weapon.

Although the weapon is intended to be launched aerially, Al-Qassam forces chose to launch their rocket from ground-based launchers. Unlike a Qassam rocket, the S5K contains more explosives, but is less precise.

On Friday, 8 December 2017, two S-5 rockets fired from the Gaza Strip landed on Sderot.[ citation needed ]

Libya

The S-5, along with S-8 and S-13 rockets, has been deployed from the backs of pick-up trucks (generally, technicals) during the 2011 Libyan civil war, [10] serving as a makeshift MLRS. UB-16 and UB-32 pods were used in this role. The rebels have also developed a man-portable launcher for the S-5, turning the rocket into a makeshift RPG round. [10]

Pakistan

The 57mm S-5 rockets were used by the Pakistan Air Force with their Shenyang F-6s against Indian ground targets at Shakargarh sector during the Battle of Shakargarh in 1971. In total, 188 rockets were fired from the F-6s ORO-57K launcher. [11]

Syria

The S-5 has seen use by the Syrian Air Force against opposition forces in the Syrian civil war. [12] It has also been used as an improvised ground-launched rocket, fired from UB-16 or UB-32 pods.

Ukraine

The 57mm rockets were used during Russian invasion of Ukraine as improvised ground-launched MLRS (multiple launch rocket system) by the Ukrainians. [13] [14] On 18 June 2023, a Russian BTR-80 APC that had two UB-32 rocket pods attached to it was sighted and damaged by loitering drones. As multiple other Russian ground vehicles had been modified in similar ways around the same time, it was speculated that the choice to attach the rockets to the APC had been out of desperation, as Russian vehicle losses had been intensifying at that time. [15]

Launcher characteristics

ORO-57K [16]

UB-16-57 [16] [17]

MiG-21MF with R-3S air-to-air missile and UB-16 launcher with S-5 rockets. MiG-21 RB19.JPG
MiG-21MF with R-3S air-to-air missile and UB-16 launcher with S-5 rockets.

UB-32 [16] [17]

A pair of UB-32 pods under the wingtip of a Mil Mi-24 helicopter Mil Mi-24, armamento, Museo Nacional de Bulgaria, marzo de 2011.JPG
A pair of UB-32 pods under the wingtip of a Mil Mi-24 helicopter
UB-32 launcher under the wing of an Antonov An-72P patrol aircraft Russian Border Guard Antonov An-72P at Vladivostok Airport.jpg
UB-32 launcher under the wing of an Antonov An-72P patrol aircraft

Rocket specifications

DesignationTypeLength overallLaunch weightWarhead weightNotes
S-5/ARS-57GP0.915 m3.99 kg1.16 kgImpact fuze. 3.5 mrad dispersion.
S-5MHE-FRAG ? ? ?Produces 75 splinters
S-5M1HE-FRAG0.882 m3.86 kg0.8 kgProduces 75 splinters
S-5MOFrag0.998 m4.82 kg0.8 kgWarhead has 20 notched steel rings generate 360 fragments.
S-5KHEAT ? ? ? Shaped charge warhead, 130 mm versus RHA.
S-5K1HEAT0.83 m3.64 kg1.1 kgShaped charge warhead, 130 mm versus RHA.
S-5KOHEAT /
FRAG		0.987 m4.43 kg1.36 kgWarhead has 11 notched steel rings, 220 fragments.
S-5KOBHEAT /
FRAG		0.987 m4.43 kg1.36 kgWarhead has 11 notched steel rings, 220 fragments. Code "B" for uses new type BN-K low smoke motor powder.
S-5KPHEAT /
FRAG		1.079 m5.01 kg1.8 kgShaped charge with wound wire fragmentation jacket and sensitive piezoelectric impact fuze. Improved warhead with 250 mm RHA penetration.
S-5KPBHEAT /
FRAG		1.079 m5.01 kg1.8 kgShaped charge with wound wire fragmentation jacket and sensitive piezoelectric impact fuze. Improved warhead with 250 mm RHA penetration. Code "B" for uses new type BN-K low smoke motor powder.
S-5SFlechette ? ? ?Warhead contains 1,000 to 1,100 40 mm long flechettes.
S-5SBFlechette ? ? ?Warhead contains 1,000 to 1,100 40 mm long flechettes. Code "B" for uses new type BN-K low smoke motor powder.
S-5P (PARS-57) Chaff  ? ?n/aChaff rocket
S-5P1Chaff1.073 m5.04 kgn/aChaff rocket.
S-5-OFlare ? ? ?Flare / illumination
S-5-O1Paraflare0.948 m4.94 kg1.73 kgParachute flare.
S-5KorGuided1.100 m5.85 kg.-200 mm RHA penetration. 0.8–1.8 m CEP accuracy.

See also

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References

  1. 1 2 Comeback for Russia’s Unguided Rockets. Aviation International News. 24 October 2019.
  2. ↑ "S5 rocket (KOM/KOE)/ARS-57". Yugo import. Retrieved 9 July 2021.
  3. 1 2 3 (in Russian) C-5 at Ugolok Neba site
  4. 1 2 17 tys. S-5 dla WP, altair.com (in Polish) published 2013-05-29 [access 2017-10-13]
  5. ↑ Rochowicz, Robert (November 2021). "Lotnictwo wojsk lądowych w ludowym Wojsku Polskim" [Ground forces' aviation in people's Polish Army]. Nowa Technika Wojskowa (in Polish). Vol. 4/2021. p. 92. ISSN   1230-1655.
  6. ↑ Lyamin & Jenzen-Jones 2014 , p. 11 & 12
  7. ↑ Dodge Billingsley (2013). Fangs of the Lone Wolf: Chechen Tactics in the Russian-Chechen War 1994-2009. pp. 214–220. ISBN   978-1909384774. The recoil threw him backward and the rocket didn't fly straight. It started to do all sorts of zigzags. Either it was damaged or I don't know.
  8. ↑ "How MiG-21 tilted the 1971 war in India's favour with its 13/1 success ratio". Firstpost. 2021-12-16. Retrieved 2023-10-04.
  9. ↑ "IDF: Gaza Militants Fired New Kind of Rocket at Israel". Haaretz. December 6, 2009. Archived from the original on March 29, 2010. Retrieved December 6, 2009.
  10. 1 2 Lyamin & Jenzen-Jones 2014 , p. 19
  11. ↑ Kaiser Tufail. "1971 Air War Assessed". DefenceJournal.com. A total of 188 S-5 57-mm rockets were fired by the F-6s, all in Shakargarh Sector; since each ORO-57K rocket launcher had a capacity of eight rockets, at least 12 sorties are likely to have been flown with these rockets.
  12. ↑ Lyamin & Jenzen-Jones 2014 , p. 22
  13. ↑ @OSINTtechnical (April 21, 2023). "57mm improvised towed MRL in Ukrainian service" (Tweet). Retrieved 22 April 2023– via Twitter.
  14. ↑ @OSINTtechnical (April 30, 2023). "Improvised light MRL in Ukrainian service, salvoing off 24 57mm S-5 rockets" (Tweet). Retrieved 30 April 2023– via Twitter.
  15. ↑ Axe, David. "Take A BTR Vehicle, Bolt On A Pair Helicopter Rocket Pods—Then Open Fire And Hope For The Best". Forbes. Retrieved 2023-06-19.
  16. 1 2 3 (in Polish)Tomasz Szulc, Następcy Katiuszy. Cz.II in: nowa Technika Wojskowa nr 8/98, ISSN   1230-1655
  17. 1 2 Lyamin & Jenzen-Jones 2014.

Bibliography

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