Difference between revisions of "L'Obusier de 155 Modèle 1950 (155 mm)"

Latest revision as of 10:37, 24 January 2023

Introducing Wiki 3.0

Description

The Obusier de 155 mm Modèle 50 is a French 155 mm 30 calibre howitzer first introduced in the 1952. It was the first artillery piece designed by the French Army since the World War II, around 980 of them were manufactured by France but also under license by Sweden and its Swedish Armed Forces. They were replaced by the TRF1 in the 1980s, but reserves were being made up until the end of 1990s.

Vehicles equipped with this weapon

Lorraine 155 Mle.50

General info

The Obusier de 155 mm Modèle 50 is a 155 mm howitzer which was fitted onto the Lorraine 155 Mle.50. The cannon is devastating at any range, due to only being restricted to using HE shells which do not lose penetration power with increasing range, although using it at long ranges will prove to be an issue due to the relatively slow velocity. The projectile are loaded separately from the charges, which also leads to pretty high reload times, being roughly under half a minute.

Available ammunition

Penetration statistics
Ammunition	Type of warhead	Penetration @ 0° Angle of Attack (mm)
Ammunition	Type of warhead	10 m	100 m	500 m	1,000 m	1,500 m	2,000 m
M107	HE	61	61	61	61	61	61

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (kg)	Ricochet
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (kg)	0%	50%	100%
M107	HE	563	43.1	0.3	0.1	9.14	79°	80°	81°

Smoke shell characteristics
Ammunition	Velocity (m/s)	Projectile mass (kg)	Screen radius (m)	Screen deploy time (s)	Screen hold time (s)	Explosive mass (TNT equivalent) (g)
M110	563	40.8	21	5	30	50

Comparison with analogues

Comparable cannons to the Obusier de 155 mm Modèle 50
Nation	Name	Year of Production	RPM	Ammunition	Maximum Penetration (mm)
▅	NSJ L/30 (155 mm)	1975	6 RPM	M107 M107 (PF) Type 75	61 61 54

Usage in battles

Since it is a 155 mm howitzer which solely relies on chemical energy to cause damage, as is the case with other large calibre cannons, one should try to hit the belly armour of a tank which will bring very reliable one hit kills. This can however prove to be a very hard task to pull off in some maps or against some tanks. Side shots are way more easier to hit and will cause as much damage as a belly shot would. Another way of reliably destroying tanks would be to aim for their roof mounted MGs or their cupolas, albeit not every tank has a roof mounted MG or a cupola that is easy to hit.

The slow rate of fire is inadequate to be used in closed spaces as it leaves you vulnerable for almost half a minute, but it also isn't very effective at long ranges due to the slow velocity of the shell. User should maintain a medium distance between them and the enemy as it is the most effective range at which the 155 howitzer can engage targets reliably. Another good way of playing it is to find a vantage point or to hide behind a small hill. Because of the somewhat slow velocity of the round, the user can hide behind a small hill and engage targets without the targets seeing them.

But one should avoid trying to scale hills, as the gun depression of -5° will leave them vulnerable and without the option of returning fire.

Pros and cons

Pros:

Powerful 155 mm howitzer with an HE shell similar to that of the KV-2
Reliable penetrates the belly armour and the sides of a tank

Cons:

Slow reload rate; which can be even slower if the loader is knocked out
The gun only has -5° of depression
Restricted to HE shells
Low velocity of the rounds

History

The 155 mm howitzer was manufactured by France and it was the first artillery piece that the French have designed since the second World War. It was carried around on a carriage in the shape of a double-arrow. It was equipped with a muzzle brake with gills and a variable recoil that can perform vertical shooting. Its maximum range was approximately 17.7 km with the French Mle 1965 shell.

Its mass was about 8,500 kg when it was deployed, but it was roughly 8,155 kg when set in a battery position.

In 1950, Lorraine came up with two prototypes of a self-propelled vehicle, which had the 155 mm howitzer mounted in a fixed casemate. The second one had its howitzer mounted in the front of the vehicle, rather than the middle of the vehicle as was the case with the first prototype. This project was however abandoned in 1955 and only the two prototypes were made.

The US was interested in the Obusier de 155 mm Modèle 50, so after a collaboration between France and Israel in the 1960s, a gun was made to be used with the M-50 which was an open structured self-propelled artillery piece, mounting a single French 155 mm Modèle 50 howitzer at the back of the hull, which was based on the "long" hull of M4A4 fitted with Continental engine. Probably about 120 of these guns were built.

Media

Images

Obusier de 155 Modèle 50 mounted on a Lorraine 155

External links

France tank cannons
20 mm	20F2
25 mm	SA35 L/72
37 mm	SA18 L/21 · SA38 L/33
47 mm	SA34 L/30 · SA35 L/32 · SA37
75 mm	APX · APX Canon de 75 mm modèle 1897 · SA35 L/17 · SA44 · SA49 · SA50 L/57
90 mm	D.911 APX · CN90 F2 · CN90 F3 · CN90 F4 · D915 · DEFA F1 · SA45 · SA47
100 mm	SA47 L/58
105 mm	CN-105-F1 · Giat 105 G2 · Modele F2 · PzK M57
120 mm	GIAT CN120-25 G1 · GIAT CN120-26 F1 · SA46
142 mm	ACRA
155 mm	GCT F1 · Schneider 155 C · L'Obusier de 155 Modèle 1950
	Foreign:
15 mm	MG 151 ^(Germany)
20 mm	MG 151 ^(Germany)
30 mm	Bushmaster 2 Mk.44 ^(USA)
37 mm	M6 ^(USA)
40 mm	Bofors L/60 · QF 2-pounder ^(Britain)
75 mm	KwK42 ^(Germany) · M3 ^(USA) · M6 ^(USA)
76 mm	M7 ^(USA)
90 mm	M3 ^(USA)
105 mm	M4 ^(USA)

@@ Line 1: / Line 1: @@
 == Description ==
-<!-- "Write an introduction to the article in 2-3 small paragraphs. Briefly tell us about the history of the development and combat using the weaponry and also about its features. Compile a list of air, ground, or naval vehicles that feature this weapon system in the game." -->
+<!-- ''Write an introduction to the article in 2-3 small paragraphs. Briefly tell us about the history of the development and combat using the weaponry and also about its features. Compile a list of air, ground, or naval vehicles that feature this weapon system in the game.'' -->
 The '''Obusier de 155 mm Modèle 50''' is a French 155 mm 30 calibre howitzer first introduced in the 1952. It was the first artillery piece designed by the French Army since the World War II, around 980 of them were manufactured by France but also under license by Sweden and its Swedish Armed Forces. They were replaced by the TRF1 in the 1980s, but reserves were being made up until the end of 1990s.
@@ Line 9: / Line 9: @@
 == General info ==
-<!-- "Tell us about the tactical and technical characteristics of the cannon or machine gun." -->
+<!-- ''Tell us about the tactical and technical characteristics of the cannon or machine gun.'' -->
 The '''Obusier de 155 mm Modèle 50''' is a 155 mm howitzer which was fitted onto the [[Lorraine 155 Mle.50]]. The cannon is devastating at any range, due to only being restricted to using HE shells which do not lose penetration power with increasing range, although using it at long ranges will prove to be an issue due to the relatively slow velocity. The projectile are loaded separately from the charges, which also leads to pretty high reload times, being roughly under half a minute.
 === Available ammunition ===
-<!-- "Describe the shells that are available for the weapon and their features and purpose. If it concerns autocannons or machine guns, write about different ammo belts and what is inside (which types of shells)." -->
+<!-- ''Describe the shells that are available for the weapon and their features and purpose. If it concerns autocannons or machine guns, write about different ammo belts and what is inside (which types of shells).'' -->
+{{:{{PAGENAME}}/Ammunition|M107, M110}}
-{| class="wikitable sortable" width="100%" style="text-align:center"
-! colspan="8" |'''Penetration statistics'''
-|-
-! rowspan="2" data-sort-type="text" |'''Ammunition'''
-! rowspan="2" |'''Shell type'''
-! colspan="6" |'''Penetration at 0° Angle of Attack (mm)'''
-|-
-!'''10 m'''!!'''100 m'''!!'''500 m'''!!'''1,000 m'''!!'''1,500''' '''m'''!!'''2,000 m'''
-|-
-|M107||HE||54||54||54||54||54||54
-|}
-{| class="wikitable sortable" width="100%" style="text-align:center"
-! colspan="10" |'''Shell details'''
-|-
-! rowspan="2" data-sort-type="text" |'''Ammunition'''
-! rowspan="2" |'''Shell type'''
-! rowspan="2" |'''Velocity(m/s)'''
-! rowspan="2" |'''ProjectileMass (kg)'''
-! rowspan="2" |'''Fuse delay(m)'''
-! rowspan="2" |'''Fuse sensitivity(mm)'''
-! rowspan="2" |'''Explosive Mass(TNT equivalent) (g)'''
-! colspan="3" |'''Ricochet chance'''
-|-
-!'''0%'''!!'''50%'''!!'''100%'''
-|-
-|M107||HE||563||43.1||0.0||0.1||6,860||79°||80°||81°
-|}
-{| class="wikitable" style="text-align:center"
-! colspan="7" |'''Smoke shell characteristics'''
-|-
-!'''Ammunition'''
-!'''Velocity(m/s)'''
-!'''ProjectileMass (kg)'''
-!'''Screen radius(m)'''
-!'''Screen deploy time(s)'''
-!'''Screen hold time(s)'''
-!'''Explosive Mass(TNT equivalent) (g)'''
-|-
-|M110||563||40.8||25||5||30||50
-|}
 === Comparison with analogues ===
-<!-- "Give a comparative description of cannons/machine guns that have firepower equal to this weapon." -->
+<!-- ''Give a comparative description of cannons/machine guns that have firepower equal to this weapon.'' -->
 {| class="wikitable"
-! colspan="6" |'''Comparable cannons to the Obusier de 155 mm Modèle 50'''
+! colspan="6" | Comparable cannons to the Obusier de 155 mm Modèle 50
 |-
-!'''Nation'''
+! Nation
-!'''Name'''
+! Name
-!'''Year of Production'''
+! Year of Production
-!'''RPM'''
+! RPM
-!'''Ammunition'''
+! Ammunition
-!'''Maximum Penetration'''
+! Maximum Penetration<br>(mm)
-'''(mm)'''
 |-
 |▅
@@ Line 73: / Line 34: @@
 |1975
 |6 RPM
-|M107
+|M107<br>M107 (PF)<br>Type 75
-M107 (PF)
+|61<br>61<br>54
+|}
-Type 75
+== Usage in battles ==
-|61
+<!-- "Describe the cannon/machine gun in the game - its distinctive features, tactics of usage against notable opponents. Please don't write a "guide" - do not impose a single point of view, but give the reader food for thought." -->
+Since it is a 155 mm howitzer which solely relies on chemical energy to cause damage, as is the case with other large calibre cannons, one should try to hit the belly armour of a tank which will bring very reliable one hit kills. This can however prove to be a very hard task to pull off in some maps or against some tanks. Side shots are way more easier to hit and will cause as much damage as a belly shot would. Another way of reliably destroying tanks would be to aim for their roof mounted MGs or their cupolas, albeit not every tank has a roof mounted MG or a cupola that is easy to hit.
+The slow rate of fire is inadequate to be used in closed spaces as it leaves you vulnerable for almost half a minute, but it also isn't very effective at long ranges due to the slow velocity of the shell. User should maintain a medium distance between them and the enemy as it is the most effective range at which the 155 howitzer can engage targets reliably. Another good way of playing it is to find a vantage point or to hide behind a small hill. Because of the somewhat slow velocity of the round, the user can hide behind a small hill and engage targets without the targets seeing them.
-|}
-== Usage in battles ==
+But one should avoid trying to scale hills, as the gun depression of -5° will leave them vulnerable and without the option of returning fire.
-''Describe the cannon/machine gun in the game - its distinctive features, tactics of usage against notable opponents. Please don't write a "guide" - do not impose a single point of view, but give the reader food for thought.''
 === Pros and cons ===
-''Summarise and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.''
+<!-- "Summarise and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list." -->
 '''Pros:'''
-*
+* Powerful 155 mm howitzer with an HE shell similar to that of the KV-2
+* Reliable penetrates the belly armour and the sides of a tank
 '''Cons:'''
-*
+* Slow reload rate; which can be even slower if the loader is knocked out
+* The gun only has -5° of depression
+* Restricted to HE shells
+* Low velocity of the rounds
 == History ==
-<!-- "Examine the history of the creation and combat usage of the weapon in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/ History" (example: https://wiki.warthunder.com/(Weapon-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref></ref>, as well as adding them at the end of the article with <references />." -->
+<!-- ''Examine the history of the creation and combat usage of the weapon in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Weapon-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>.'' -->
-The 155 mm howitzer was manufactured by France and it was the first artillery piece that the French have designed since the second World War. It was carried around on a carriage in the shape of a double-arrow. It was equipped with a muzzle break with gills and a variable recoil that can perform vertical shooting. Its maximum range was approximately 17,700 km with the French Mle 1965 shell.
+The 155 mm howitzer was manufactured by France and it was the first artillery piece that the French have designed since the second World War. It was carried around on a carriage in the shape of a double-arrow. It was equipped with a muzzle brake with gills and a variable recoil that can perform vertical shooting. Its maximum range was approximately 17.7 km with the French Mle 1965 shell.
 Its mass was about 8,500 kg when it was deployed, but it was roughly 8,155 kg when set in a battery position.
 In 1950, Lorraine came up with two prototypes of a self-propelled vehicle, which had the 155 mm howitzer mounted in a fixed casemate. The second one had its howitzer mounted in the front of the vehicle, rather than the middle of the vehicle as was the case with the first prototype. This project was however abandoned in 1955 and only the two prototypes were made.
-The US was interested in '''Obusier de 155 mm Modèle 50''', so after a collaboration between France and Israel in the 1960s, a gun was made to be used with the M-50 which was an open structured self-propelled artillery piece, mounting a single French Model 50 155 mm howitzer at the back of the hull, which was based on the "long" hull of M4A4 fitted with Continental engine. Probably about 120 of these guns were built.
+The US was interested in the '''Obusier de 155 mm Modèle 50''', so after a collaboration between France and Israel in the 1960s, a gun was made to be used with the M-50 which was an open structured self-propelled artillery piece, mounting a single French 155 mm Modèle 50 howitzer at the back of the hull, which was based on the "long" hull of M4A4 fitted with Continental engine. Probably about 120 of these guns were built.
 == Media ==
-<!-- "An excellent addition to the article would be a video guide, as well as screenshots from the game and photos." -->[[File:GarageImage Lorraine 155 Mle.50.jpg|none|thumb|The L'Obusier de 155 Modèle 50 mounted on a Lorraine 155]]
+<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
+;Images
+<gallery mode="packed-hover" heights="200">
+File:GarageImage Lorraine 155 Mle.50.jpg|<small>Obusier de 155 Modèle 50 mounted on a Lorraine 155</small>
+</gallery>
 == See also ==
-<!-- "Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:"
+<!-- ''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
+* ''reference to the article about the variant of the cannon/machine gun;''
-"*reference to the article about the variant of the cannon/machine gun;"
+* ''references to approximate analogues by other nations and research trees.'' -->
-"*references to approximate analogues by other nations and research trees."
+* [[NSJ L/30 (155 mm)]] - A similar Japanese 155 mm howitzer
- -->
-* [[Type 75 SPH]] - A Japanese tank destroyer housing a 155 mm howitzer
 == External links ==
@@ Line 124: / Line 91: @@
 * [[Wikipedia:Obusier_de_155_mm_Modèle_50|[Wikipedia] Obusier de 155 mm Modèle 50]]
+* [https://www.chars-francais.net/2015/index.php/9-archives/de-1945-1990/1306-1950-lorraine-automoteur-155 <nowiki>[Chars-francais.net] Lorraine Automoteur 155 mm</nowiki>]
+* [https://artillerie.asso.fr/basart/article.php3?id_article=1045 <nowiki>[artillerie.asso.fr] L'Obusier de 155 mm, modèle 1950/1963</nowiki>]
-* [https://www.chars-francais.net/2015/index.php/9-archives/de-1945-1990/1306-1950-lorraine-automoteur-155 <nowiki>[Chars-francais.net] Lorraine Automoteur 155 mm</nowiki>]
-* [https://artillerie.asso.fr/basart/article.php3?id_article=1045 <nowiki>[artillerie.asso.fr] L’Obusier de 155 mm, modèle 1950/1963</nowiki>]
 {{France tank cannons}}
 [[Category:Tank cannons]]

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