EP0221917B1 - Projectile sous-calibre - Google Patents

Projectile sous-calibre Download PDF

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Publication number
EP0221917B1
EP0221917B1 EP86902401A EP86902401A EP0221917B1 EP 0221917 B1 EP0221917 B1 EP 0221917B1 EP 86902401 A EP86902401 A EP 86902401A EP 86902401 A EP86902401 A EP 86902401A EP 0221917 B1 EP0221917 B1 EP 0221917B1
Authority
EP
European Patent Office
Prior art keywords
projectile
penetrator
angle
conical
tail unit
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.)
Expired
Application number
EP86902401A
Other languages
German (de)
English (en)
Other versions
EP0221917A1 (fr
Inventor
Henning Schaake
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinmetall Industrie AG
Original Assignee
Rheinmetall GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rheinmetall GmbH filed Critical Rheinmetall GmbH
Priority to AT86902401T priority Critical patent/ATE43436T1/de
Publication of EP0221917A1 publication Critical patent/EP0221917A1/fr
Application granted granted Critical
Publication of EP0221917B1 publication Critical patent/EP0221917B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/02—Stabilising arrangements
    • F42B10/04—Stabilising arrangements using fixed fins
    • F42B10/06—Tail fins

Definitions

  • the invention relates to a sub-caliber projectile according to the preamble of claim 1.
  • Sub-caliber bullets of this type are known from GB-PS 1 256 740. They are expediently labored as cartridge ammunition and are preferably used in direct fire to combat armored targets. Sub-caliber bullets of the generic type are manufactured for a wide variety of caliber ranges and have already been introduced for tank cannons and machine guns.
  • the projectiles which are also referred to as penetrators and are often made of tungsten heavy metal, are made as long as possible. This provides enough bullet material to penetrate the target.
  • the extension of the storeys is usually limited by the fact that the max. Cartridge length of the tube weapons put into service is limited and a tail unit must be arranged at the rear of the sub-caliber floor for the purpose of stabilization, which also takes up part of the space available in the propellant charge case.
  • the invention has for its object to improve the final ballistic performance of a sub-caliber projectile.
  • the conical region 15a of the penetrator 15b had a length of approximately 70 mm; the cone-shaped recess 16a in the tail unit 16 has a length of approximately 40 mm.
  • the angle a was 5 °, while the angle ⁇ was 7 °.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

Pour améliorer la performance balistique finale d'un projectile sous-calibré (15) composé d'un pénétrateur (15b) et d'un empennage (16), une partie (15a) du projectile (15) a une forme conique et repose dans un évidement (16a) lui aussi conique de l'empennage (16). Les forces transversales s'exerçant sur l'empennage (16) lors de la pénétration dans le matériau de la cible ne sont ainsi pas transmises au pénétrateur (15b), au moins dans la partie conique (15a) du projectile, ce qui empêche le pénétrateur (15b) de se casser à cet endroit.

Claims (6)

1. Projectile sous-calibré comportant un pénétrateur et un empennage entourant le pénétrateur coaxialement sur une zone partielle de sa longueur, caractérisé en ce qu'une zone partielle (15a) située vers l'arrière du pénétrateur (15b) est en forme de cône (angle de cône a) et que cette zone partielle (15a) du pénétrateur (15b) est disposée dans un évidement (16a), logé dans l'empennage (16), dont la surface de limitation interne est également conformée en cône (angle de cône β).
2. Projectile selon la revendication 1, caractérisé en ce que l'angle d'ouverture (β) est supérieur à l'angle d'ouverture (a).
3. Pojectile selon l'une des revendications 1 et 2, caractérisé en ce qu'à la partie en forme de cône (15a) du pénétrateur (15b) se raccorde un goujon (15c) cylindrique fileté qui pénètre dans un évidement (16b) taraudé.
4. Projectile selon l'une des revendications 1 à 3, caractérisé en ce que le goujon (15c) est limité par un tronc de cône (15d), que l'évidement (16b) débouche dans un trou borgne conique ( 16c) et que l'inclinaison des surfaces de limitation du tronc de cône (15d) et du trou borgne (16c) se correspondent.
5. Projectile selon l'une des revendications 1 à 4, caractérisé en ce que la longueur de l'évidement (16a) en forme de cône dans l'empennage (16) se situe entre un tiers et deux tiers de la longueur de la zone ( 15a) en forme de cône du pénétrateur ( 15b), et que l'angle (β) est supérieur d'au moins deux degrés à l'angle (a).
6. Projectile selon les revendications 1 à 5, caractérisé en ce que la longueur de la zone ( 15a) en forme de cône du pénétrateur (15b) est d'environ 70 mm, que la longueur de l'évidement (16a) en forme de cône est environ 40 mm, que l'angle (a) présente une valeur de 5° et l'angle (ß) une valeur de 7°.
EP86902401A 1985-05-11 1986-04-10 Projectile sous-calibre Expired EP0221917B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86902401T ATE43436T1 (de) 1985-05-11 1986-04-10 Unterkalibriges geschoss.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853517125 DE3517125A1 (de) 1985-05-11 1985-05-11 Unterkalibriges geschoss
DE3517125 1985-05-11

Publications (2)

Publication Number Publication Date
EP0221917A1 EP0221917A1 (fr) 1987-05-20
EP0221917B1 true EP0221917B1 (fr) 1989-05-24

Family

ID=6270563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86902401A Expired EP0221917B1 (fr) 1985-05-11 1986-04-10 Projectile sous-calibre

Country Status (5)

Country Link
US (1) US4730561A (fr)
EP (1) EP0221917B1 (fr)
JP (1) JPS62500539A (fr)
DE (2) DE3517125A1 (fr)
WO (1) WO1986006828A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4028409A1 (de) * 1990-09-07 1992-03-12 Rheinmetall Gmbh Unterkalibriges geschoss
DE102020104217A1 (de) 2020-02-18 2021-08-19 Rheinmetall Waffe Munition Gmbh Penetrator und Verwendung eines Penetrators

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8706250D0 (en) * 1987-03-17 1987-04-23 Secr Defence Tail fin unit for projectile
DE3843796A1 (de) * 1988-12-24 1990-07-05 Rheinmetall Gmbh Geschoss mit fluegelleitwerk
DE3927918A1 (de) * 1989-08-24 1991-02-28 Rheinmetall Gmbh Fluegelstabilisiertes geschoss
DE4020691A1 (de) * 1990-06-29 1992-01-02 Dynamit Nobel Ag Fluegelstabilisiertes geschoss
US5014931A (en) * 1990-08-29 1991-05-14 The United States Of America As Represented By The Secretary Of The Army Kinetic energy projectile with impact-ejected fins
US7795567B2 (en) * 2005-04-05 2010-09-14 Raytheon Company Guided kinetic penetrator
US9188417B2 (en) 2013-08-01 2015-11-17 Raytheon Company Separable sabot for launching payload
IL229290A0 (en) * 2013-11-07 2014-05-28 Felix Rachlin accelerator
US9677863B1 (en) * 2016-01-26 2017-06-13 The United States Of America As Represented By The Secretary Of The Army Long rod penetrator concept for small caliber munitions
FR3115358B1 (fr) * 2020-10-19 2023-11-24 Nexter Munitions Projectile perforant et explosif dote d'un empennage de stabilisation

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1112044A (en) * 1914-09-29 J A Watson Projectile.
US1520131A (en) * 1921-08-30 1924-12-23 Firm Of Optische Anstalt C P G Oblong drop projectile
US2983225A (en) * 1944-06-30 1961-05-09 Nelson A Walker Projectile
FR87354E (fr) * 1963-08-03 1966-07-29 Projectile empenné au calibre
US3378216A (en) * 1966-04-29 1968-04-16 Susquehama Corp Integral fin canister-nozzle exit cone
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
DE2844870C2 (de) * 1978-10-14 1984-10-18 Rheinmetall GmbH, 4000 Düsseldorf Unterkalibriges Übungsgeschoß
DE3017380A1 (de) * 1980-05-07 1981-11-12 Rheinmetall GmbH, 4000 Düsseldorf Fluegelstabilisiertes geschoss
DE3048206C2 (de) * 1980-12-20 1985-06-13 Diehl GmbH & Co, 8500 Nürnberg Übungsgeschoß
US4565340A (en) * 1984-08-15 1986-01-21 Ford Aerospace & Communications Corporation Guided projectile flight control fin system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4028409A1 (de) * 1990-09-07 1992-03-12 Rheinmetall Gmbh Unterkalibriges geschoss
DE102020104217A1 (de) 2020-02-18 2021-08-19 Rheinmetall Waffe Munition Gmbh Penetrator und Verwendung eines Penetrators

Also Published As

Publication number Publication date
WO1986006828A1 (fr) 1986-11-20
DE3663590D1 (en) 1989-06-29
EP0221917A1 (fr) 1987-05-20
US4730561A (en) 1988-03-15
JPS62500539A (ja) 1987-03-05
DE3517125A1 (de) 1986-11-13

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