WO1984004380A1 - Projectile a sabot - Google Patents

Projectile a sabot Download PDF

Info

Publication number
WO1984004380A1
WO1984004380A1 PCT/EP1984/000119 EP8400119W WO8404380A1 WO 1984004380 A1 WO1984004380 A1 WO 1984004380A1 EP 8400119 W EP8400119 W EP 8400119W WO 8404380 A1 WO8404380 A1 WO 8404380A1
Authority
WO
WIPO (PCT)
Prior art keywords
sabot
projectile
projectile according
edge
circular
Prior art date
Application number
PCT/EP1984/000119
Other languages
German (de)
English (en)
Inventor
Hansjoerg Becker
Gerhard Glotz
Juergen Boecker
Juergen Leeker
Walter Simon
Jean-Claude Sauvestre
Patrick Montier
Original Assignee
Rheinmetall Gmbh
France Etat
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, France Etat filed Critical Rheinmetall Gmbh
Priority to BR8406813A priority Critical patent/BR8406813A/pt
Priority to NO843499A priority patent/NO160100C/no
Publication of WO1984004380A1 publication Critical patent/WO1984004380A1/fr
Priority to DK544884A priority patent/DK155857C/da

Links

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
    • 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
    • F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
    • F42B10/38—Range-increasing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/20—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type
    • F42B12/22—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type with fragmentation-hull construction
    • F42B12/24—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type with fragmentation-hull construction with grooves, recesses or other wall weakenings
    • 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 sabot projectile long length / diameter ratio with a segmented sabot that has an air pocket on the front.
  • a projectile of the aforementioned type is from DE-PS
  • the sabot has the air pocket in the front support and a rear edge in the vicinity of the second support, around which the segments are detached from the balancing projectile.
  • an uneven detachment of the sabot segments from the projectile was found. This can lead to a damaging swinging of the projectile. Due to the swinging of the bullet, both its accuracy as well as its penetration performance can be significantly impaired.
  • the latter relates primarily to the effect against new types of targets, which require both particularly long projectiles with a ratio of length to diameter that is significantly higher than 10, as well as the greatest possible freedom of oscillation. Investigations on
  • the invention has for its object to provide an improved sabot projectile, the improvement mainly relating to the detachment behavior of the sabot.
  • OMPI The floor 10 is shown only in parts in all figures.
  • a Spi zen Scheme of the projectile 10 is preferably shown, while in Fig. 4 and Fig. 5, the front region of the sabot shown only in parts is shown.
  • a sabot projectile of the type described acts only due to its kinetic energy and contains no explosive charge.
  • the peripheral region 16 has an annular projection 34 in the vicinity of the tip 18.
  • the tip body 15 has a cone tip 22 with a step 24 on the back, which establishes a jump through esser.
  • the tip body 15 is provided on the front with a hemisphere 26, the rear base surface of which has a step 28 for achieving a jump in diameter.
  • the tip body 15 consists of z. B. nine circular cylinder bodies 36, 40, 44, 48, 52, 56, 60, 64 and 68.
  • the circular cylinder body 36 forms the tip 18 with a comparatively small diameter and is delimited on the back by a step 38 which delimits the following circular cylinder body 40 on the front side of a comparatively larger diameter.
  • Further steps 42, 46, 50, 54, 58, 62, 66 and 70 form jumps in diameter between the adjacent circular cylinder bodies, each with a larger diameter, step 70 being delimited on the circumference by the base edge 14 between the circular cylinder rod 11 and the front region 12.
  • the structures shown all lead to at least one contour discontinuity in the front area 12.
  • the pressure fluctuations which have a detrimental effect on the detachment behavior of the sabot segments from the projectile are avoided.
  • an angle that a head wave of the front region 12 generates becomes larger or smaller. At a larger angle, a flatter head wave profile is formed. In this way, a profile can be formed in which the head shaft no longer hits the front edge of the sabot. This also prevents disruption of the detachment process.
  • FIGS. 4 and 5 A substantially 76 caliber section 76 of the sabot 72 surrounds the air pocket 74.
  • the area 76 extends from a front edge 78 to a rear edge 80.
  • the edge 80 delimits a rear side surface 82 which leads into a tapered central area 84 .
  • a front surface 86, 88 forming the air pocket ° 74 is delimited on the front by a circular edge 90.
  • a track 92 which connects the circular edge 90 to the edge 78, is curved such that its center of curvature (s) lies on the side of the circular edge 90 facing away from the front region 12, which is not shown. This results in a difference between a larger radius 94 of the area 76 and a smaller radius 96 assigned to the circular edge 90 (only entered in FIG. 4). While the track 92 in the exemplary embodiment according to FIG. 4 has an area 98 which is comparatively larger
  • an area 100 delimited by the track 92 in FIG. 5 is comparatively thin-walled.
  • the front surface 88 is more curved toward the circular edge 90 than the front surface 86 in FIG. 4.
  • the retraction of the circular edge 90 ensures that it is not hit by the head shaft already mentioned, which disrupts the detachment process.
  • the invention can be used jointly both in the front area of the floor or in the design of the sabot as well as in both areas. This advantageously enables a good adaptation to the respective requirements and circumstances.
  • the segments can also detach from the floor, starting from the rear or essentially parallel to the longitudinal axis of the floor.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Testing Of Engines (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Saccharide Compounds (AREA)
  • Toys (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Tires In General (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Steroid Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Memory System Of A Hierarchy Structure (AREA)

Abstract

La partie pointe (15) d'un projectile à calibre réduit (10) présente un contour discontinu sous la forme d'une rainure circulaire (20). On détermine ainsi une couche limite entre une zone d'écoulement de vitesse supersonique et une zone d'écoulement de vitesse subsonique; cela permet d'éviter des perturbations dues à l'écoulement lors de la séparation régulière des segments de sabot, qui ne sont pas représentés, du projectile (10).
PCT/EP1984/000119 1983-04-23 1984-04-18 Projectile a sabot WO1984004380A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR8406813A BR8406813A (pt) 1983-04-23 1984-04-18 Projetil de subcalibre
NO843499A NO160100C (no) 1983-04-23 1984-09-03 Drivburprosjektil.
DK544884A DK155857C (da) 1983-04-23 1984-11-15 Projektil med foeringsring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833314750 DE3314750A1 (de) 1983-04-23 1983-04-23 Mittel zum verbessern des abloeseverhaltens von treibkaefigsegmenten von einem wuchtgeschoss fuer die rohrwaffe

Publications (1)

Publication Number Publication Date
WO1984004380A1 true WO1984004380A1 (fr) 1984-11-08

Family

ID=6197165

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1984/000119 WO1984004380A1 (fr) 1983-04-23 1984-04-18 Projectile a sabot

Country Status (14)

Country Link
EP (1) EP0123266B1 (fr)
JP (1) JPS61500076A (fr)
KR (1) KR850000664A (fr)
AT (1) ATE30081T1 (fr)
AU (1) AU557827B2 (fr)
BR (1) BR8406813A (fr)
DE (2) DE3314750A1 (fr)
DK (1) DK155857C (fr)
ES (1) ES287013Y (fr)
GR (1) GR81472B (fr)
IN (1) IN161067B (fr)
PT (1) PT78472B (fr)
TR (1) TR22229A (fr)
WO (1) WO1984004380A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2241309B (en) * 1986-02-20 1992-02-05 Royal Ordnance Plc Projectiles and components therefor
DE4007103A1 (de) * 1990-03-07 1991-09-12 Rheinmetall Gmbh Treibkaefig
DE4022462A1 (de) * 1990-07-14 1992-01-16 Diehl Gmbh & Co Luftverbringbares unterwasser-projektil
CA2196970A1 (fr) * 1995-06-07 1996-12-19 Jeffrey A. Brown Projectile a gyrostabilisateur concu pour etre utilise contre des cibles sous-marines
EP0774106B1 (fr) * 1995-06-07 2000-03-08 Raytheon Company Projectile plein calibre, utilise contre des objectifs sous-marins
KR100220883B1 (ko) * 1995-06-07 1999-09-15 글렌 에이치. 렌젠 주니어 수중 물체에 사용하기 위한 공기 역학적으로 안정화된 발사체 시스템

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR454822A (fr) * 1912-09-26 1913-07-16 Robert Abbott Hadfield Perfectionnements aux chapeaux de projectiles perce-cuirasse
FR493570A (fr) * 1916-10-16 1919-08-13 Bento Caeiro Procédé et dispositif pour augmenter la portée des projectiles
US2373883A (en) * 1942-10-30 1945-04-17 Clyde B Ferrel Shell structure
FR1206606A (fr) * 1951-11-07 1960-02-10 Tech De Rech S Ind & Mecanique Projectile empenné
US3672304A (en) * 1970-03-30 1972-06-27 Lockheed Aircraft Corp Special purpose firearms projectile
FR2229037A1 (fr) * 1973-05-09 1974-12-06 Rheinmetall Gmbh
GB2105445A (en) * 1981-09-09 1983-03-23 Bofors Ab Ammunition unit
US4405100A (en) * 1981-02-20 1983-09-20 The United States Of America As Represented By The Secretary Of The Navy Turbulence generator for maximizing configuration tolerances of free flight ordnance

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR454822A (fr) * 1912-09-26 1913-07-16 Robert Abbott Hadfield Perfectionnements aux chapeaux de projectiles perce-cuirasse
FR493570A (fr) * 1916-10-16 1919-08-13 Bento Caeiro Procédé et dispositif pour augmenter la portée des projectiles
US2373883A (en) * 1942-10-30 1945-04-17 Clyde B Ferrel Shell structure
FR1206606A (fr) * 1951-11-07 1960-02-10 Tech De Rech S Ind & Mecanique Projectile empenné
US3672304A (en) * 1970-03-30 1972-06-27 Lockheed Aircraft Corp Special purpose firearms projectile
FR2229037A1 (fr) * 1973-05-09 1974-12-06 Rheinmetall Gmbh
US4405100A (en) * 1981-02-20 1983-09-20 The United States Of America As Represented By The Secretary Of The Navy Turbulence generator for maximizing configuration tolerances of free flight ordnance
GB2105445A (en) * 1981-09-09 1983-03-23 Bofors Ab Ammunition unit

Also Published As

Publication number Publication date
KR850000664A (ko) 1985-02-28
DK155857B (da) 1989-05-22
AU2822484A (en) 1984-11-19
ATE30081T1 (de) 1987-10-15
GR81472B (fr) 1984-12-11
DK544884A (da) 1984-11-15
DE3314750A1 (de) 1984-10-25
DE3466593D1 (en) 1987-11-05
ES287013U (es) 1985-11-16
PT78472B (en) 1986-03-20
JPS61500076A (ja) 1986-01-16
DK155857C (da) 1989-10-02
EP0123266B1 (fr) 1987-09-30
TR22229A (tr) 1986-10-09
BR8406813A (pt) 1985-03-19
AU557827B2 (en) 1987-01-08
EP0123266A1 (fr) 1984-10-31
IN161067B (fr) 1987-09-26
PT78472A (en) 1984-05-01
DK544884D0 (da) 1984-11-15
ES287013Y (es) 1986-06-16

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