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EP0288657B1 - Projectile sous-calibré - Google Patents

Projectile sous-calibré Download PDF

Info

Publication number
EP0288657B1
EP0288657B1 EP88100568A EP88100568A EP0288657B1 EP 0288657 B1 EP0288657 B1 EP 0288657B1 EP 88100568 A EP88100568 A EP 88100568A EP 88100568 A EP88100568 A EP 88100568A EP 0288657 B1 EP0288657 B1 EP 0288657B1
Authority
EP
European Patent Office
Prior art keywords
sabot
projectile
sub
guide part
projectiles
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 - Lifetime
Application number
EP88100568A
Other languages
German (de)
English (en)
Other versions
EP0288657A1 (fr
Inventor
Klaus-Dieter Pahnke
Rolf Dr. Holl
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
Publication of EP0288657A1 publication Critical patent/EP0288657A1/fr
Application granted granted Critical
Publication of EP0288657B1 publication Critical patent/EP0288657B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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

Definitions

  • the invention relates to a sub-caliber projectile as defined in the preamble of claim 1.
  • Such projectiles are known, for example, from Rheinmetall's book “Waffentechnisches Taschenbuch", 4th edition Düsseldorf 1977, page 472 ff.
  • the sabots have an abrupt front wall profile, air pockets being located in the front wall.
  • the air pockets support the detachment of the sabot segments by, in addition to the centrifugal force acting radially, the air resistance force also acting on the segments.
  • the general rule is that the drive cages should be as light as possible so that the acceleration process in the pipe is not countered by excessive mass. In addition, the detachment process should not be inhibited by excessive inertia.
  • a sub-caliber projectile with a sabot which has a relatively narrow caliber middle part with an air pocket and two guide parts tapering conically towards the projectile.
  • the bow-side guide part is designed to be relatively short, so that the sabot segments are detached quickly after leaving the tube and without disrupting flight behavior.
  • the present invention has for its object to develop a sub-caliber projectile of the type mentioned so that the smallest possible mass is required even with relatively long sabot and that the detachment of the sabot segments takes place quickly after leaving the tube and without disrupting the flight behavior of the projectile core .
  • the invention is therefore essentially based on the idea that the projectile core is guided beyond the usually used first air pocket by a relatively long, conically shaped guide part.
  • the guide part In order to significantly improve the detachment of the entire sabot, the guide part also has an air pocket.
  • 1 denotes a wing-stabilized sub-caliber projectile.
  • This projectile consists of the projectile core 20 and of the sabot 30.
  • This sabot is, for example, rotationally symmetrical and usually consists of three identical segments in the circumferential direction, which are separated by predetermined breaking points (not shown).
  • the sabot 30 contains a first air pocket in its front part 31. In front of this air pocket there is a conically shaped guide part 32, at the front end 33 of which there is a second air pocket 34. As is usual with large-caliber projectiles, the front part 21 of the projectile core 20 protrudes from the sabot 30
  • the operation of the sabot 30 without the guide member 32 is known per se.
  • the air forces act primarily on the front part of the sabot 30, so that there is first a tearing open at the predetermined breaking points, not shown.
  • the sabot segments therefore separate from the bow-side to the rear-side part of the floor core.
  • the strength of the predetermined breaking points must be so great that there is still no detachment of the guide part segments along the (not shown) predetermined breaking line in the tube itself, because otherwise the property of the guide part, namely guiding the projectile core inside the tube, is lost.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Earth Drilling (AREA)

Claims (1)

1. Projectile (1) sous-calibré comportant un noyau de projectile (20) et une cage de propulsion (30), la partie avant (21) du noyau de projectile (20) ressortant de la cage de propulsion (30) et la cage de propulsion (30) présentant une première poche d'air (31) qui est destinée à entraîner le détachement de la cage de propulsion (30) du noyau de projectile (20) - ou à le favoriser dans le cas de projectiles stabilisés en rotation - et la cage de propulsion (30) présentant une partie de guidage (32) conique, disposée devant la première poche d'air (31), dans le sens de vol du projectile (1), caractérisé en ce qu'on prévoit une deuxième poche d'air (34), à l'extrémité avant de la partie de guidage (32).
EP88100568A 1987-04-24 1988-01-16 Projectile sous-calibré Expired - Lifetime EP0288657B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873713721 DE3713721A1 (de) 1987-04-24 1987-04-24 Unterkalibriges geschoss
DE3713721 1987-04-24

Publications (2)

Publication Number Publication Date
EP0288657A1 EP0288657A1 (fr) 1988-11-02
EP0288657B1 true EP0288657B1 (fr) 1991-04-03

Family

ID=6326205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100568A Expired - Lifetime EP0288657B1 (fr) 1987-04-24 1988-01-16 Projectile sous-calibré

Country Status (3)

Country Link
EP (1) EP0288657B1 (fr)
JP (1) JPS63273795A (fr)
DE (2) DE3713721A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3930255A1 (de) * 1989-09-11 1991-03-21 Rheinmetall Gmbh Wuchtgeschossanordnung
US12066276B2 (en) * 2022-05-05 2024-08-20 Raytheon Company Sabot or cover for seekers, sensitive windows and surface elements on gun launched munitions

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE444984B (sv) * 1982-05-28 1986-05-20 Bofors Ab Drivorgan for underkalibrig rotationsstabiliserad projektil
US4469027A (en) * 1983-04-15 1984-09-04 The United States Of America As Represented By The Secretary Of The Army Armor piercing ammunition having interlocking means

Also Published As

Publication number Publication date
EP0288657A1 (fr) 1988-11-02
DE3713721A1 (de) 1988-11-17
DE3862230D1 (de) 1991-05-08
JPS63273795A (ja) 1988-11-10

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