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Canon de 155 C modèle 1915 St. Chamond

The Canon de 155 C modèle 1915 Saint-Chamond was a French howitzer used during World War I. It was based on a private prototype of a 150 millimetres (5.9 in) howitzer presented to the Mexican government in 1911. The French government ordered 400 Saint-Chamond howitzers in 1915, these being delivered starting in late 1916. Small numbers of Saint-Chamond howitzers were given to the Serbian and Romanian armies towards the end of World War I. The Saint-Chamond howitzer served in the French Army after World War I and were mobilised at the outbreak of World War II. Finland bought 24 Saint-Chamond howitzers during the Winter War and these served until the 1960s. The German Army captured some Saint-Chamond howitzers after the fall of France and used these mostly as coastal defence guns until the end of World War II.

Canon de 155 C modèle 1915 Saint-Chamond
TypeField howitzer
Place of originFrance
Service history
In service1915–1960s
Used by France
 Nazi Germany
 Finland
 Romania
 Serbia
WarsWorld War I, World War II
Production history
DesignerSaint-Chamond
Designed1911
ManufacturerSaint-Chamond
Produced1916–17
No. built390
Specifications
Mass3,040 kg (6,700 lb)
Barrel length2.517 m (8 ft 3 in) L/17.8
Crew12

Shell weight43.5 kg (96 lb)
Caliber155 mm (6.1 in)
Breechsemi-automatic vertical sliding-block
RecoilHydro-spring
CarriageBox trail
Elevation-5° to +40°
Traverse5° 40'
Rate of fire2-3 rpm
Muzzle velocity370 m/s (1,200 ft/s)
Maximum firing range9.3 km (5.8 mi)

Development and Production edit

FAMH (Compagnie des forges et aciéries de la marine et d'Homécourt), commonly known by the FAMH main factory location - Saint-Chamond, developed a 150 millimetres (5.9 in) heavy howitzer[1] as a complementary artillery piece to the Mondragon-designed 75 millimetres (3.0 in) field guns Saint-Chamond had built for the Mexican Army. The prototype howitzer was presented to the Mexican Govt. in 1911 but did not result in a production order. In 1913 the Saint-Chamond prototype howitzer was demonstrated to the French Army but there was no official interest since it was thought the Canon de 155 C Mle 1904 TR Rimailho howitzer satisfied the heavy howitzer requirements of the French Army.

In 1915, the French Army conducted a series of unsuccessful attacks on German trench lines. After the Second Battle of Artois in May 1915 an analysis of the performance of the artillery showed that the Rimailho howitzers were incapable of delivering the volume of fire required by extant artillery doctrine. This doctrine required that heavy howitzers should deliver an intense bombardment on enemy trench lines just before an infantry attack. General Joffre, the French Army Commander-in Chief, demanded new heavy howitzers which were capable of sustained high rates of fire and had sufficient range to minimise the effects of counter-battery fire. 400 155 millimetres (6.1 in) howitzers were ordered from Saint-Chamond in June 1915. However, production delays meant that the Saint-Chamond howitzers didn't enter service until the Autumn of 1916. The Saint-Chamond howitzers were delivered at a rate of 50 howitzers/month and once the order was complete Saint-Chamond produced the Canon de 155 C modèle 1917 Schneider under licence until the end of the war. In 1917 a modified Saint-Chamond howitzer was prototyped which increased the max. range to match that of the Schneider howitzer but this wasn't taken up because of concerns about disrupting production of the Schneider howitzer.[2]

Description edit

The Canon de 155 C modèle 1915 Saint-Chamond was a howitzer of relatively advanced design for its time. It used a hydro-spring recoil system mounted below the barrel and had a small gun shield. The box carriage had wooden wheels so it could only be towed as a single load at low speeds by vehicles or by a team of 8 horses The barrel was drawn back over the trail for towing. It had a semi-automatic vertical sliding block breech that ejected the cartridge case after firing. A loading tray was attached to the carriage on a swinging mount. It fired a 43.5 kilograms (96 lb) high-explosive (Obus FA Mle 1915) shell to a range of 9,300 metres (10,200 yd).[3] The ammunition was "semi-fixed" the propellent was packaged in small bags in a brass cartridge and the total propellent charge could be adjusted by changing the number of bags. The Saint-Chamond howitzer was unique among French guns in that it had rear-positioned trunnions. The advantage of rear-positioned trunnions is that the breech doesn't "disappear" into a box trail as is the case with trunnions mounted at the centre of gravity of the barrel and receiver. This means that the howitzer can be loaded at high elevation angles since the breech position does not change significantly throughout the elevation range. The disadvantage of rear-positioned trunnions is that the elevation system must be more robust since it must bear greater forces from the barrel weight. To reduce the forces on the elevation gearing an equilibrator is necessary, this is usually a spring, or in the case of the Saint-Chamond a pneumatic system. The Saint-Chamond elevation system also moved the gun shield along with the barrel which meant that the gun shield could be smaller than a fixed gun shield.[4] The traverse system was similar to that of other French guns, a worm gear moved the carriage across the axle.[5]

Operational use edit

The Saint-Chamond howitzer was 400 kg lighter than the equivalent Schneider howitzer, but its maximum range was 2,400 metres (2,600 yd) shorter.[2] It was generally used in second line and training units until the end of World War 1.[citation needed] It remained on strength until World War 2. 88 were in service with the artillery units of the Maginot Line and saw some action during the German invasion of France in May 1940.[2]

The Romanian Army was given 14 Saint-Chamond howitzers in 1917 and these served until World War 2.[6]

The rebuilt Serbian (later Yugoslav) Army was given a few batteries of Saint-Chamond howitzers in 1917-18. These remained on strength after World War 1 and were upgraded in the 1920s to match the performance of the Canon de 155 C modèle 1917 Schneider howitzer and served until World War II.

Finland bought 24 Saint-Chamond howitzers from France in 1939 at the start of the Winter War. They arrived in Finland at the beginning of March 1940 and were issued to Heavy Artillery Battery 8, but the war ended before the unit reached the front. They served with Heavy Artillery Battalions 27 and 29 during the Continuation War.[7] The howitzers served on after World War 2 until the 1960s.[citation needed]

The German Army captured some Saint-Chamond howitzers after the fall of France and used them mostly as coastal defence guns as the 15.5 cm sFH 415 (f) until the end of the war.[8]

Surviving howitzers edit

Four survive in Finland:

One howitzer survives at the Military Historical Museum of Artillery, St Petersburg, Russia

Notes edit

  1. ^ Vauvillier 2006, p. 59.
  2. ^ a b c Vauvillier 2006, p. 60.
  3. ^ Vauvillier & Touzin 2006, p. 60.
  4. ^ St-Chamond manual Fig.11
  5. ^ St-Chamond manual Fig.14
  6. ^ Stroea & Bãjenaru 2010, p. 55.
  7. ^ "ARTILLERY PART 6: Heavy Howitzers (150 mm - 155 mm)". 5 May 2008. Retrieved 25 May 2009.
  8. ^ Gander & Chamberlain 1979, p. 218-.

References edit

  • Gander, Terry; Chamberlain, Peter (1979). Weapons of the Third Reich: An Encyclopedic Survey of All Small Arms, Artillery and Special Weapons of the German Land Forces 1939-1945. New York: Doubleday. ISBN 0-385-15090-3.
  • Hogg, Ian V. (1998). Allied Artillery of World War I. Marlborough, Wiltshire: Crowood Press. ISBN 1-86126-104-7.
  • Stroea, Adrian; Bãjenaru, Gheorghe (2010). Artileria românã în date si imagini. Bucarest: Centrului Tehnic-Editorial al Armatei. pp. 54–55. ISBN 978-606-524-080-3. (available at http://www.worldwar2.ro/documents/004-artileria-romana-in-date-si-imagini.pdf)
  • Vauvillier, François (2006). "Un Oiseaux Rare: le Canon de 155 C Modèle 1915 Saint-Chamond". Histoire de Guerre, Blindés & Matériel (74): 57–58.
  • Vauvillier, François; Touzin, Pierre (2006). Les Canons de la Victoire 1914-1918 Tome 1 - L'Artillerie de Campagne. Paris: Histoire & Collections. p. 60. ISBN 978-2-35250-106-0.
  • Annexe au Reglement Provisoire de Manoevre de l'Artillerie de Campagne - Du Matériel de 155 Court Modèle 1915 "St-Chamond" - Description et Entretien de Matériel (St-Chamond manual). Paris: Imprimerie Nationale. 1916. Retrieved 24 December 2013.

External links edit

  • Finnish service
  • Landships II article
  • Detailed walkaround of the St-Chamond howitzer at Hämeenlinna

canon, modèle, 1915, chamond, canon, modèle, 1915, saint, chamond, french, howitzer, used, during, world, based, private, prototype, millimetres, howitzer, presented, mexican, government, 1911, french, government, ordered, saint, chamond, howitzers, 1915, thes. The Canon de 155 C modele 1915 Saint Chamond was a French howitzer used during World War I It was based on a private prototype of a 150 millimetres 5 9 in howitzer presented to the Mexican government in 1911 The French government ordered 400 Saint Chamond howitzers in 1915 these being delivered starting in late 1916 Small numbers of Saint Chamond howitzers were given to the Serbian and Romanian armies towards the end of World War I The Saint Chamond howitzer served in the French Army after World War I and were mobilised at the outbreak of World War II Finland bought 24 Saint Chamond howitzers during the Winter War and these served until the 1960s The German Army captured some Saint Chamond howitzers after the fall of France and used these mostly as coastal defence guns until the end of World War II Canon de 155 C modele 1915 Saint ChamondTypeField howitzerPlace of originFranceService historyIn service1915 1960sUsed by France Nazi Germany Finland Romania SerbiaWarsWorld War I World War IIProduction historyDesignerSaint ChamondDesigned1911ManufacturerSaint ChamondProduced1916 17No built390SpecificationsMass3 040 kg 6 700 lb Barrel length2 517 m 8 ft 3 in L 17 8Crew12Shell weight43 5 kg 96 lb Caliber155 mm 6 1 in Breechsemi automatic vertical sliding blockRecoilHydro springCarriageBox trailElevation 5 to 40 Traverse5 40 Rate of fire2 3 rpmMuzzle velocity370 m s 1 200 ft s Maximum firing range9 3 km 5 8 mi Contents 1 Development and Production 2 Description 3 Operational use 4 Surviving howitzers 5 Notes 6 References 7 External linksDevelopment and Production editFAMH Compagnie des forges et acieries de la marine et d Homecourt commonly known by the FAMH main factory location Saint Chamond developed a 150 millimetres 5 9 in heavy howitzer 1 as a complementary artillery piece to the Mondragon designed 75 millimetres 3 0 in field guns Saint Chamond had built for the Mexican Army The prototype howitzer was presented to the Mexican Govt in 1911 but did not result in a production order In 1913 the Saint Chamond prototype howitzer was demonstrated to the French Army but there was no official interest since it was thought the Canon de 155 C Mle 1904 TR Rimailho howitzer satisfied the heavy howitzer requirements of the French Army In 1915 the French Army conducted a series of unsuccessful attacks on German trench lines After the Second Battle of Artois in May 1915 an analysis of the performance of the artillery showed that the Rimailho howitzers were incapable of delivering the volume of fire required by extant artillery doctrine This doctrine required that heavy howitzers should deliver an intense bombardment on enemy trench lines just before an infantry attack General Joffre the French Army Commander in Chief demanded new heavy howitzers which were capable of sustained high rates of fire and had sufficient range to minimise the effects of counter battery fire 400 155 millimetres 6 1 in howitzers were ordered from Saint Chamond in June 1915 However production delays meant that the Saint Chamond howitzers didn t enter service until the Autumn of 1916 The Saint Chamond howitzers were delivered at a rate of 50 howitzers month and once the order was complete Saint Chamond produced the Canon de 155 C modele 1917 Schneider under licence until the end of the war In 1917 a modified Saint Chamond howitzer was prototyped which increased the max range to match that of the Schneider howitzer but this wasn t taken up because of concerns about disrupting production of the Schneider howitzer 2 Description editThe Canon de 155 C modele 1915 Saint Chamond was a howitzer of relatively advanced design for its time It used a hydro spring recoil system mounted below the barrel and had a small gun shield The box carriage had wooden wheels so it could only be towed as a single load at low speeds by vehicles or by a team of 8 horses The barrel was drawn back over the trail for towing It had a semi automatic vertical sliding block breech that ejected the cartridge case after firing A loading tray was attached to the carriage on a swinging mount It fired a 43 5 kilograms 96 lb high explosive Obus FA Mle 1915 shell to a range of 9 300 metres 10 200 yd 3 The ammunition was semi fixed the propellent was packaged in small bags in a brass cartridge and the total propellent charge could be adjusted by changing the number of bags The Saint Chamond howitzer was unique among French guns in that it had rear positioned trunnions The advantage of rear positioned trunnions is that the breech doesn t disappear into a box trail as is the case with trunnions mounted at the centre of gravity of the barrel and receiver This means that the howitzer can be loaded at high elevation angles since the breech position does not change significantly throughout the elevation range The disadvantage of rear positioned trunnions is that the elevation system must be more robust since it must bear greater forces from the barrel weight To reduce the forces on the elevation gearing an equilibrator is necessary this is usually a spring or in the case of the Saint Chamond a pneumatic system The Saint Chamond elevation system also moved the gun shield along with the barrel which meant that the gun shield could be smaller than a fixed gun shield 4 The traverse system was similar to that of other French guns a worm gear moved the carriage across the axle 5 Operational use editThe Saint Chamond howitzer was 400 kg lighter than the equivalent Schneider howitzer but its maximum range was 2 400 metres 2 600 yd shorter 2 It was generally used in second line and training units until the end of World War 1 citation needed It remained on strength until World War 2 88 were in service with the artillery units of the Maginot Line and saw some action during the German invasion of France in May 1940 2 The Romanian Army was given 14 Saint Chamond howitzers in 1917 and these served until World War 2 6 The rebuilt Serbian later Yugoslav Army was given a few batteries of Saint Chamond howitzers in 1917 18 These remained on strength after World War 1 and were upgraded in the 1920s to match the performance of the Canon de 155 C modele 1917 Schneider howitzer and served until World War II Finland bought 24 Saint Chamond howitzers from France in 1939 at the start of the Winter War They arrived in Finland at the beginning of March 1940 and were issued to Heavy Artillery Battery 8 but the war ended before the unit reached the front They served with Heavy Artillery Battalions 27 and 29 during the Continuation War 7 The howitzers served on after World War 2 until the 1960s citation needed The German Army captured some Saint Chamond howitzers after the fall of France and used them mostly as coastal defence guns as the 15 5 cm sFH 415 f until the end of the war 8 Surviving howitzers editFour survive in Finland Vuorenmaa of Artjarvi in Orimattila Finland free entry in woods Artillery Museum of Finland in Hameenlinna Finland Salpa Line museum War memorial at the village of Juva Eastern FinlandOne howitzer survives at the Military Historical Museum of Artillery St Petersburg RussiaNotes edit Vauvillier 2006 p 59 a b c Vauvillier 2006 p 60 Vauvillier amp Touzin 2006 p 60 St Chamond manual Fig 11 St Chamond manual Fig 14 Stroea amp Bajenaru 2010 p 55 ARTILLERY PART 6 Heavy Howitzers 150 mm 155 mm 5 May 2008 Retrieved 25 May 2009 Gander amp Chamberlain 1979 p 218 References editGander Terry Chamberlain Peter 1979 Weapons of the Third Reich An Encyclopedic Survey of All Small Arms Artillery and Special Weapons of the German Land Forces 1939 1945 New York Doubleday ISBN 0 385 15090 3 Hogg Ian V 1998 Allied Artillery of World War I Marlborough Wiltshire Crowood Press ISBN 1 86126 104 7 Stroea Adrian Bajenaru Gheorghe 2010 Artileria romana in date si imagini Bucarest Centrului Tehnic Editorial al Armatei pp 54 55 ISBN 978 606 524 080 3 available at http www worldwar2 ro documents 004 artileria romana in date si imagini pdf Vauvillier Francois 2006 Un Oiseaux Rare le Canon de 155 C Modele 1915 Saint Chamond Histoire de Guerre Blindes amp Materiel 74 57 58 Vauvillier Francois Touzin Pierre 2006 Les Canons de la Victoire 1914 1918 Tome 1 L Artillerie de Campagne Paris Histoire amp Collections p 60 ISBN 978 2 35250 106 0 Annexe au Reglement Provisoire de Manoevre de l Artillerie de Campagne Du Materiel de 155 Court Modele 1915 St Chamond Description et Entretien de Materiel St Chamond manual Paris Imprimerie Nationale 1916 Retrieved 24 December 2013 External links editFinnish service Landships II article Detailed walkaround of the St Chamond howitzer at Hameenlinna Retrieved from https en wikipedia org w index php title Canon de 155 C modele 1915 St Chamond amp oldid 1182383062, wikipedia, wiki, book, books, library,

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