EP3317607A1 - Fin-stabilized sub-calibre projectile which can be fired from a rifled barrel and method for the production thereof - Google Patents
Fin-stabilized sub-calibre projectile which can be fired from a rifled barrel and method for the production thereofInfo
- Publication number
- EP3317607A1 EP3317607A1 EP16732660.2A EP16732660A EP3317607A1 EP 3317607 A1 EP3317607 A1 EP 3317607A1 EP 16732660 A EP16732660 A EP 16732660A EP 3317607 A1 EP3317607 A1 EP 3317607A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- penetrator
- sabot
- guide flange
- projectile
- wing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
- F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
- F42B14/061—Sabots for long rod fin stabilised kinetic energy projectiles, i.e. multisegment sabots attached midway on the projectile
- F42B14/062—Sabots for long rod fin stabilised kinetic energy projectiles, i.e. multisegment sabots attached midway on the projectile characterised by contact surfaces between projectile and sabot
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
- F42B14/02—Driving bands; Rotating bands
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
- F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
- F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
- F42B14/061—Sabots for long rod fin stabilised kinetic energy projectiles, i.e. multisegment sabots attached midway on the projectile
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
- F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
- F42B14/064—Sabots enclosing the rear end of a kinetic energy projectile, i.e. having a closed disk shaped obturator base and petals extending forward from said base
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
- F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
- F42B14/067—Sealing aspects in sabots, e.g. sealing between individual segments of the sabots or sealing between the outer surface of the sabot and the inner surface of the barrel
Definitions
- the invention relates to a crucible-fired sub-caliber projectile which can be fired from a drawn weapon barrel and comprises a wing-moving penetrator and a disposable sabot arranged on the penetrator and consisting of a plurality of sabot segments connected to one another on the circumference the projectile centrifugal forces after leaving the gun barrel are separated.
- the invention further relates to a method for producing such a subcaliber bullet.
- Such projectiles are known, for example, from EP 0 300 373 B1. They are often fired from automatic weapons in the medium caliber range (20-50 mm).
- the ejectablemaschinegei consists essentially of a cylindrical body made of plastic with predetermined breaking parts, which is circumferentially supported along its entire length on the inner wall of the corresponding gun barrel, and a rear side connected to the main body metal insert.
- This metal insert is provided with a driving thread, which serves in a corresponding thread of the penetra- tor for the transmission of the thrust and twist forces acting on the penetrator when the projectile is fired on the sabot.
- the respective base body has a guide band, which transmits the full twist according to the pitch of the swirl grooves of the corresponding weapon barrel and the muzzle velocity of the projectile on the sabot and the driving thread on the penetrator.
- a disadvantage of such known projectiles is that arise through the thick-walled design of the body, which is usually produced by injection molding, problems in its production. Thus, due to the relatively long cooling times required long cycle times in the production of the sabot. In addition, due to the large wall thickness of the base body, defects, for example voids, repeatedly occur in the plastic material, which can then lead to outlet errors of the penetrator after leaving the weapon barrel. The larger the caliber of the projectiles, the thicker the body of the sabot and the more pronounced occur the problems previously described.
- DE-OS 2039719 likewise discloses a wing-stabilized lower-caliber projectile which can be fired from a drawn barrel, in which the sabot is composed of a plurality of sabot segments made of a light metal or plastic, which are held together by means of corresponding guide bands.
- the sabot of these projectiles comprises a body having a supportable on the inner wall of the gun barrel front guide flange and an axially spaced rear guide flange.
- the located between the two guide flanges connecting portion of themaschinespiegeis has a relation to the guide flanges smaller outer diameter.
- Both the guide bands and the entrainment member are designed in such a way that when the projectile is shot due to slippage between the guide bands and the sabot, not all of the twist is transmitted from the two guide bands to the sabot and that, thanks to slippage between sabot and penetrator, too not all the spin of the sabot is transferred from this to the penetrator.
- the object of the invention is to disclose a fuselage stabilized subcaliber projectile which can be fired from a drawn weapon barrel, whose sabot is light and stable and whose penetrators have lower failure errors after leaving the weapon barrel than with comparable known subcaliber projectiles Case is. Furthermore, a method for producing such a projectile is to be disclosed
- the invention is based essentially on the idea of arranging on the penetrator of the subcaliber projectile a drift mirror which transmits the full drali whose basic body consists of a light metal alloy and, for reasons of weight saving, a front guide flange which can be supported on the inner wall of the weapon barrel and one at an axial distance arranged rear guide flange, wherein the connecting portion of the sabot located between the two guide flanges has a smaller outer diameter relative to the guide flanges.
- the main body for reasons of further weight saving axial bores, which are passed through the front guide flange and extending to the rear guide flange.
- the diameter of the axial bores is chosen such that the area between the penetrator and the respective bore, in which the body has its smallest wall thickness acts as a predetermined breaking point, along which the sabot segments due to the on them separating centrifugal forces after leaving the barrel.
- Fig. 1 is a perspective view of a subcaliber projectile according to the invention
- Fig. 2 is a longitudinal section through the projectile shown in Fig. 1 and
- Fig. 3 is an enlarged front view of the projectile shown in Fig. 1.
- 1 and 2, 1 designates a flight-stabilized subcaliber projectile according to the invention which comprises a penetrator 3 connected to a wingwork 2 and a disposable sabot 4 arranged on the penetrator 3.
- the sabot 4 comprises a base body 5 made of an aluminum alloy, which is connected via a threaded connection 6 with the penetrator 3. Through this threaded connection 6 it is achieved that the thrust and twist forces acting on the sabot 4 during firing of the projectile 1 within a weapon barrel are transmitted to the penetrator 3 without slippage.
- the main body 5 has a front guide flange 7 and arranged at an axial distance rear guide flange 8. Both guide flanges 7, 8 are used in the charged state of the projectile 1 of the support of the sabot 4 on the inner wall of the corresponding weapon barrel.
- the two guide flanges 7, 8 of the sabot 4 are connected to one another via a connecting section 9 which, due to weight savings, has a smaller outside diameter than the guide flanges 7, 8.
- a sealing and guiding tape 11 made of plastic.
- the main body 5 has a plurality of evenly distributed over the circumference, axially extending longitudinal grooves 12, which in this embodiment, four circumferentially interconnected sabot segments 13-16 of the sabot 4 laterally limit.
- the main body 5 contains four bores guided axially through the front guide flange 7 and extending up to the rear guide flange 8 along the longitudinal grooves 12. These also serve to create a solid fracture 8.
- the diameter of the bores 17 is chosen such that the resulting region 18 between the penetrator 3 and the respective bore 17, in which the base body 5 has its smallest wall thickness, may act as a solid break parts, along which themaschinespiege! segments 13-16 after leaving the gun barrel from each other separate.
- Alternative incorporations of predetermined breaking points are known from practice.
- the rear side of the base body 5 is provided by means of a plastic Heckabdichtung 19, to avoidmaschineiadungsgase can get into the penetrator 3 receiving central bore 20 or in the longitudinal grooves 12.
- the sealing and guiding tape 11 When shooting the projectile 1, the sealing and guiding tape 11 is pressed by the force of the propellant charge gases in the trains of the corresponding barrel and causes a rotational movement of themaschinespiegeis 4 and the threaded connection 6 a corresponding rotational movement of the penetrator 3.
- the projectile 1 leave the gun barrel has the predetermined breaking points 18 due to the centrifugal forces acting on them along the longitudinal grooves 12, and the sabot segments 13-16 are dropped at high speed symmetrically with respect to the trajectory of the projectile 1.
- the base of the recess 10 of the guide belt is preferably provided with a Randr réelle the entire circumference.
- the sabot is coated by means of an anodic oxidation process into the train field professional in the weapon barrel. This coating is mainly important on the two guide fliers 7 and 8 and is characterized by its hardness and abrasion resistance.
- the prefabricated penetrator 3 is now screwed into the driving surface 4 as far as it is screwed until it presses against the threading stop 22 in a form-fitting manner on the sabot 4
- the thief and guide band 11 and at the same time the rear seal 19 are introduced by means of a plastic injection molding process into the recess 10 of the rear guide flange 8. This is made possible because the guide band area 10 is connected by means of longitudinal slots 21 with the region of the rear seal 19. Subsequently, the wing panel 2 is screwed as a complete unit on the penetrator.
- the invention is not limited to the exemplary embodiment described above.
- the sabot may be composed of only two or three sabot segments.
- the sealing and guiding strips can also be made of another suitable material, such as sintered metals.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015110627.2A DE102015110627A1 (en) | 2015-07-01 | 2015-07-01 | From a drawn gun barrel moldable, wing stabilized subcaliber bullet and method for its production |
PCT/EP2016/065056 WO2017001428A1 (en) | 2015-07-01 | 2016-06-28 | Fin-stabilized sub-calibre projectile which can be fired from a rifled barrel and method for the production thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3317607A1 true EP3317607A1 (en) | 2018-05-09 |
EP3317607B1 EP3317607B1 (en) | 2020-01-08 |
Family
ID=56263725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16732660.2A Active EP3317607B1 (en) | 2015-07-01 | 2016-06-28 | Fin-stabilized sub-calibre projectile which can be fired from a rifled barrel and method for the production thereof |
Country Status (5)
Country | Link |
---|---|
US (1) | US10996035B2 (en) |
EP (1) | EP3317607B1 (en) |
CA (1) | CA2996430C (en) |
DE (1) | DE102015110627A1 (en) |
WO (1) | WO2017001428A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11421970B2 (en) * | 2017-05-22 | 2022-08-23 | Fsg Enterprises | Spinning projectile |
EP3959480A4 (en) * | 2019-04-26 | 2022-06-22 | University of Kansas | Maneuvering aeromechanically stable sabot system |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH495547A (en) * | 1968-05-31 | 1970-08-31 | Rheinmetall Gmbh | Wing-stabilized sub-caliber bullet |
BE754801A (en) | 1969-08-21 | 1971-01-18 | Oerlikon Buehrle Ag | SUB-CALIBER SHELLS, IN PARTICULAR SHELL-ARROW |
DE2630830A1 (en) * | 1976-07-09 | 1978-01-19 | Dynamit Nobel Ag | DRIVING MIRROR FLOOR |
US4140061A (en) * | 1977-06-06 | 1979-02-20 | The United States Of America As Represented By The Secretary Of The Army | Short-range discarding-sabot training practice round and self-destruct subprojectile therefor |
DE3033041C2 (en) * | 1980-09-03 | 1986-04-10 | L'Etat Français représenté par le Délégué Général pour l'Armement, Paris | Metal and plastic sabot |
DE3051030C2 (en) * | 1980-09-03 | 1987-04-23 | Rheinmetall Gmbh, 4000 Duesseldorf, De | Guide cage for sub-calibre, flight stabilised projectile - has longitudinal slits terminating short of the rear end, leaving points of intentional weakness |
DE3050474C1 (en) * | 1980-09-03 | 1986-06-26 | L'Etat Français représenté par le Délégué Général pour l'Armement, Paris | Drift cage made from a one-piece blank |
ES2032496T3 (en) | 1987-07-20 | 1993-02-16 | Oerlikon-Contraves Ag | REDUCED CALIBER PROJECTILE STABILIZED BY FINS. |
DE3827830A1 (en) * | 1988-05-02 | 1990-03-08 | Rudolf Reusch | Kinetic energy projectile |
DE3843503A1 (en) * | 1988-12-23 | 1992-05-27 | Rheinmetall Gmbh | Armour piercing missile assembly - has front and rear missile segmented propulsion cages detachably secured to each other |
US5728968A (en) * | 1989-08-24 | 1998-03-17 | Primex Technologies, Inc. | Armor penetrating projectile |
DE3930255A1 (en) * | 1989-09-11 | 1991-03-21 | Rheinmetall Gmbh | Countering transverse vibration of slender penetrator with sabot - by terminal projecting struts abutting missile wall |
DE4022462A1 (en) * | 1990-07-14 | 1992-01-16 | Diehl Gmbh & Co | Solid air-launched underwater projectile - has core with shortened front protected by ballistic cap |
CH684804A5 (en) * | 1993-06-15 | 1994-12-30 | Contraves Pyrotec Ag | Sub-calibre projectile |
EG21731A (en) * | 1993-09-24 | 2002-02-27 | Contraves Pyrotec Ag | Releasable sabot for a subcaliber projectile |
US6324986B1 (en) * | 1998-11-06 | 2001-12-04 | Oerlikon Contraves Ag | Cartridge-case base for a sub-caliber projectile |
FR2835602B1 (en) * | 2002-02-04 | 2006-11-10 | Giat Ind Sa | SABOT FOR MUNITION ARROW |
FR2842898B1 (en) * | 2002-07-24 | 2006-11-24 | Giat Ind Sa | SABOT FOR PROJECTILE UNDER SIZE AND PROJECTILE EQUIPPED WITH SUCH A SABOT |
FR2842896B1 (en) * | 2002-07-26 | 2004-10-22 | Giat Ind Sa | SEALING BELT FOR A PROJECTILE, PROJECTILE UNDER CALIBER AND AMMUNITION PROVIDED WITH SUCH A BELT |
FR2851038B1 (en) * | 2003-02-10 | 2005-03-18 | Giat Ind Sa | SABOT FOR PROJECTILE UNDER SIZE |
US7013811B1 (en) * | 2003-04-08 | 2006-03-21 | The United States Of America As Represented By The Secretary Of The Army | Sabot for reducing the parasitic weight of a kinetic energy projectile |
US20050016413A1 (en) * | 2003-07-25 | 2005-01-27 | Giat Industries | Sub-calibred projectiles with multiple supports |
US8661984B2 (en) * | 2011-06-22 | 2014-03-04 | The United States Of America As Represented By The Secretary Of The Army | Sabot |
US8985026B2 (en) * | 2011-11-22 | 2015-03-24 | Alliant Techsystems Inc. | Penetrator round assembly |
DE102013000180B3 (en) * | 2013-01-07 | 2014-04-03 | Diehl Bgt Defence Gmbh & Co. Kg | Securing device for an igniter of a subcaliber projectile and Entsicherungsverfahren therefor |
US9746298B2 (en) * | 2014-07-30 | 2017-08-29 | The United States Of America As Represented By The Secretary Of The Army | Flechette for direct fire weapons |
KR101668520B1 (en) | 2014-09-29 | 2016-10-28 | 엘지전자 주식회사 | Vacuum cleaner |
-
2015
- 2015-07-01 DE DE102015110627.2A patent/DE102015110627A1/en not_active Withdrawn
-
2016
- 2016-06-28 US US15/753,092 patent/US10996035B2/en active Active
- 2016-06-28 CA CA2996430A patent/CA2996430C/en active Active
- 2016-06-28 WO PCT/EP2016/065056 patent/WO2017001428A1/en active Application Filing
- 2016-06-28 EP EP16732660.2A patent/EP3317607B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20180216922A1 (en) | 2018-08-02 |
CA2996430C (en) | 2023-09-26 |
US10996035B2 (en) | 2021-05-04 |
CA2996430A1 (en) | 2017-01-05 |
DE102015110627A1 (en) | 2017-01-05 |
WO2017001428A1 (en) | 2017-01-05 |
EP3317607B1 (en) | 2020-01-08 |
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