The CN 105-57 is a light 105 mm rifled tank gun originally designed to be mounted on light tanks with oscillating turret such as the French AMX-13 and the Austrian SK-105 Kurassier. It uses the same conventional ammunition as the longer and heavier CN 105 F1 but smaller and lighter propellant charges with shorter cartridges cases enable it to be fitted into the FL 12, FL 15 and FL 20 light tanks oscillating turrets.[2] Other changes to the gun include a horizontal breechblock, a muzzle brake, and a single-cylinder recoil mechanism together with a single hydropneumatic recuperator.
Ammunitionedit
OCC 105 F1 : a 10.85 kg non-rotating shaped-charge round with a muzzle velocity of 800 m/s.
OE 105 : a 12.1 kg high-explosive shell with a muzzle velocity of 700 m/s.
OECL 105 : a 11.7 kg illuminating round with a muzzle velocity of 295 m/s.
OFUM 105 : a 12.8 kg smoke shell with a muzzle velocity of 695 m/s.
OFL 105 G1 : a 3.41 kg APFSDS using the same 1.8 kg penetrator as the 105 mm OFL 105 F3, it has a muzzle velocity of 1430–1475 m/s and penetrates 120 mm of RHA steel at impact angle of 67° at 1000 m..
105 MM MLE 57 APFSDS-T : an Austrian APFSDS designed by Hirtenberger Defense Systems of Austria, it has a muzzle velocity of 1410 m/s and penetrates 250 mm of RHA steel at impact angle of 30° at 1000 m.
CN 105 G1edit
The Giat Industries 105 mm G1 is a further development of the 105 mm CN 105/57 which is installed in the French FL 12, FL 15 and FL 20 oscillating turrets. The modification enables the weapon to fire the 105 mm OFL 105 G1 APFSDS ammunition. The ordnance is fitted with a new single baffle muzzle brake, a thermal sleeve, a fume extractor and semi-automatic horizontal breech mechanism.
Additional specificationsedit
Factory designation: D1504
Overall length: 4.622 m
Rifling twist: 7°10' right hand
Number of grooves: 32
Muzzle brake: single baffle
Recoil mechanism: single hydraulic brake cylinder
Recuperator: single hydraulic recuperator
Maximum recoil length: 388 mm
Overall weight: 1210 kg
Recoiling gun mass: 1065 kg
Firing mechanism: mechanical
Referencesedit
^Tauzin, Michel. "Tome 9 L'armement de gros calibre" (PDF). www.irsem.fr (in French). Retrieved 5 January 2022.
^Foss, Christopher (1993). Jane's Armoured Fighting Vehicle Retrofit Systems 1993-94. London: ane's Information Group. p. 33. ISBN978-0710610799.
April 11, 2024
this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, january, 2022, learn, when,. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources CN 105 57 news newspapers books scholar JSTOR January 2022 Learn how and when to remove this template message The CN 105 57 also known as CN 105 57 or D1504 1 is a light French 105 mm tank gun CN 105 57An Austrian SK 105A2 Kurassier fitted with the CN 105 G1 gun TypeTank gunPlace of originFranceService historyIn service1957 presentUsed byAustria and the NetherlandsProduction historyDesignerEFAB BourgesDesigned1957Manufacturerarsenal de Bourges ABS Produced1958VariantsCN 105 G1SpecificationsMass1 210 kg 2 670 lb Length4 622 m 15 ft 2 in Shell105 528mm RCaliber105 mm 4 134 in Breechsemi automatic horizontal sliding wedgeRecoil368 mm 14 5 in Elevation 8 to 12 Traverse360 Rate of fire8 12 rounds per minuteMuzzle velocity800 m s 2 600 ft s with shaped charge round1 430 m s 4 700 ft s with the APFSDS roundMaximum firing range8 000 m 8 700 yd with HE shell Feed systemtwo six rounds ammunition drums and automatic rammer or manuallySightsM213 Contents 1 Design 2 Ammunition 3 CN 105 G1 4 Additional specifications 5 ReferencesDesign editThe CN 105 57 is a light 105 mm rifled tank gun originally designed to be mounted on light tanks with oscillating turret such as the French AMX 13 and the Austrian SK 105 Kurassier It uses the same conventional ammunition as the longer and heavier CN 105 F1 but smaller and lighter propellant charges with shorter cartridges cases enable it to be fitted into the FL 12 FL 15 and FL 20 light tanks oscillating turrets 2 Other changes to the gun include a horizontal breechblock a muzzle brake and a single cylinder recoil mechanism together with a single hydropneumatic recuperator Ammunition editOCC 105 F1 a 10 85 kg non rotating shaped charge round with a muzzle velocity of 800 m s OE 105 a 12 1 kg high explosive shell with a muzzle velocity of 700 m s OECL 105 a 11 7 kg illuminating round with a muzzle velocity of 295 m s OFUM 105 a 12 8 kg smoke shell with a muzzle velocity of 695 m s OFL 105 G1 a 3 41 kg APFSDS using the same 1 8 kg penetrator as the 105 mm OFL 105 F3 it has a muzzle velocity of 1430 1475 m s and penetrates 120 mm of RHA steel at impact angle of 67 at 1000 m 105 MM MLE 57 APFSDS T an Austrian APFSDS designed by Hirtenberger Defense Systems of Austria it has a muzzle velocity of 1410 m s and penetrates 250 mm of RHA steel at impact angle of 30 at 1000 m CN 105 G1 editThe Giat Industries 105 mm G1 is a further development of the 105 mm CN 105 57 which is installed in the French FL 12 FL 15 and FL 20 oscillating turrets The modification enables the weapon to fire the 105 mm OFL 105 G1 APFSDS ammunition The ordnance is fitted with a new single baffle muzzle brake a thermal sleeve a fume extractor and semi automatic horizontal breech mechanism Additional specifications editFactory designation D1504 Overall length 4 622 m Rifling twist 7 10 right hand Number of grooves 32 Muzzle brake single baffle Recoil mechanism single hydraulic brake cylinder Recuperator single hydraulic recuperator Maximum recoil length 388 mm Overall weight 1210 kg Recoiling gun mass 1065 kg Firing mechanism mechanicalReferences edit Tauzin Michel Tome 9 L armement de gros calibre PDF www irsem fr in French Retrieved 5 January 2022 Foss Christopher 1993 Jane s Armoured Fighting Vehicle Retrofit Systems 1993 94 London ane s Information Group p 33 ISBN 978 0710610799 Retrieved from https en wikipedia org w index php title CN 105 57 amp oldid 1212516677, wikipedia, wiki, book, books, library,
