EP0279709A1 - Gefechtsköpfe mit mindestens einer Hauptladung und einer Vorladung - Google Patents

Gefechtsköpfe mit mindestens einer Hauptladung und einer Vorladung Download PDF

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Publication number
EP0279709A1
EP0279709A1 EP88400031A EP88400031A EP0279709A1 EP 0279709 A1 EP0279709 A1 EP 0279709A1 EP 88400031 A EP88400031 A EP 88400031A EP 88400031 A EP88400031 A EP 88400031A EP 0279709 A1 EP0279709 A1 EP 0279709A1
Authority
EP
European Patent Office
Prior art keywords
projectile
tandem
head
wire
charge
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
Application number
EP88400031A
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English (en)
French (fr)
Other versions
EP0279709B1 (de
Inventor
François Arene
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.)
Societe dEtudes de Realisations et dApplications Techniques SA SERAT
Original Assignee
Societe dEtudes de Realisations et dApplications Techniques SA SERAT
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
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Publication of EP0279709A1 publication Critical patent/EP0279709A1/de
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Classifications

    • 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
    • F42B12/04—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type
    • F42B12/10—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge
    • F42B12/16—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge in combination with an additional projectile or charge, acting successively on the target

Definitions

  • the present invention relates to improvements made to tandem loads.
  • Such armor plating is capable of considerably degrading the perforating power of anti-tank munitions, in particular that of hollow charges as well as their effects downstream from the main armor.
  • the disorganization of the shaped charge jet can thus be obtained with "light active multilayer shields", characterized by a very low surface mass.
  • tandem load constitutes the display to these active multilayer shields.
  • the front charge initiates active protection and the rear charge, which generally constitutes the main charge of the tandem, is ignited after the end of the active protection "life": ie when the elements of that -this previously initiated are no longer capable of disturbing the effects of the rear charge generally constituted by a hollow charge.
  • the invention relates to a tandem load, intended in particular for attacking armored vehicles and more particularly to those whose protection includes active armor-plating with long life, characterized in that it is formed on the trajectory by two projectiles, each comprising an explosive charge, these two projectiles being joined by a connecting wire so that the rear projectile follows the front projectile.
  • these two projectiles travel their trajectory at speed V and the rear charge can exercise its full effectiveness insofar as it arrives at the target with a delay relative to the front projectile, greater than the "duration of life " ⁇ T of active shields characterizing the threat. It suffices for this that the length L of the connecting wire between charges is greater than the product V. ⁇ T.
  • the head projectile is projected at the exit from the launcher, with an additional initial speed ⁇ Vo compared to the initial speed Vo of the projectile containing the rear charge.
  • the difference in speed between the two mobiles constituted by the front and rear projectiles ensures the unwinding of the connecting wire, the tension of which is ensured by a cruising thruster incorporated in the head projectile containing the front load.
  • the invention is particularly well suited to ballistic systems whose projectiles are not stressed by deterministic load factors.
  • An example of the invention described below how the aerodynamic stability of the head projectile + connecting wire + rear projectile is ensured.
  • the initial projection of the head projectile with the initial speed supplement ⁇ Vo is preferably carried out (this example not being limiting) by expansion of the compressed air, in the nose of the rear projectile , by relative recoil of the head projectile at the start of the shot, under the effect of inertial forces.
  • the apparent elongation of this wire is preferably increased (nonlimiting example) by the stroke of a shock absorber or an arming device attached to one end of said wire.
  • the speed supplement ⁇ Vo of the head projectile is canceled at the end of the unwinding of the connecting wire by passing it through a die which can be linked either to the rear projectile or to the head projectile .
  • the tandem charge is constituted by a head projectile 1 and a rear projectile or main projectile 2 connected by the connecting wire 3 and comprising respectively the charge hollow 4, capable of initiating heavy active pre-armor and the main hollow charge 5 capable of perforating the main armor of the envisaged targets.
  • FIG. 1 shows that, according to this example of the invention, the head projectile 1 and the rear main projectile 2 preferably having its own aerodynamic stability, the tension of the wire 3 confirms this stability so that after damping of disturbances, the set of mobiles 1 and 2 and of wire 3 is characterized by a position aligned in a direction close to aerodynamic speed or speed V relative to the ground and the tangent to the path T.
  • the head projectile 1 is fixed by one or more pins such as 6, in a bore 7 of section s formed in the projectile warhead main 6 on which are organized the warhead and "shoulder" contactors 8 and 9 capable of initiating in a known manner the pyrotechnic chain of the main projectile 2 when the latter strikes the target.
  • FIG. 2 also shows that according to this example of the invention: -
  • the base of the head projectile 1 aminated with a relative recoil movement comes into contact of the stop (s) 10 at the distance x m from the bottom of the bore 7.
  • the abutment (s) 10 are preferably adjusted (not limiting) so that the air pressure Pm behind the head projectile 1 in abutment, corresponds to the balance of the inertia forces caused by the head projectile when it passes through the mouth of the launcher under acceleration ⁇ G.
  • the tension of the wire 3 at the end of the unwinding is limited by an apparent increase in the elongation of the said wire by addition to this elongation of the stroke of a shock absorber or a safety and arming device (DSA) 11 of a pyrotechnic rocket, attached to one end of said wire.
  • DSA safety and arming device
  • the speed supplement ⁇ Vo of the head projectile is canceled at the end of the unwinding of the connecting wire 3 by passing it through a linked die 17 either to the rear projectile 2, or again to the head projectile 1.
  • the wire 3 is therefore placed at the start on either side of the die 17 and the work corresponding to the cancellation of ⁇ Vo is significantly less than that which would correspond to the passage in said die of the entire length of said wire initially located upstream of it.
  • the connecting wire 3 is made of polyamide plastic, for example.
  • the head projectile 12 contains the main charge and it constitutes the main projectile, It has at the rear a bore 13 in which the connecting wire 3 is coiled and the nose of the rear projectile 14 is fixed until the start of the shot by one or more pins 15.
  • the choice of ⁇ Vo, the adjustment of the pressure Pm as well as air heights x m and x o are preferably defined as for the first embodiment of the invention described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP88400031A 1987-01-14 1988-01-07 Gefechtsköpfe mit mindestens einer Hauptladung und einer Vorladung Expired - Lifetime EP0279709B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8700319A FR2609542B1 (fr) 1987-01-14 1987-01-14 Perfectionnements apportes aux projectiles a charges creuses tandem
FR8700319 1987-01-14

Publications (2)

Publication Number Publication Date
EP0279709A1 true EP0279709A1 (de) 1988-08-24
EP0279709B1 EP0279709B1 (de) 1991-05-15

Family

ID=9346889

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88400031A Expired - Lifetime EP0279709B1 (de) 1987-01-14 1988-01-07 Gefechtsköpfe mit mindestens einer Hauptladung und einer Vorladung

Country Status (4)

Country Link
US (1) US4907512A (de)
EP (1) EP0279709B1 (de)
DE (1) DE3862770D1 (de)
FR (1) FR2609542B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2244797A (en) * 1990-06-05 1991-12-11 Serat Tandem charge for attacking armoured vehicles
DE19758457B3 (de) * 1997-09-24 2015-03-26 Nexter Munitions Gefechtskopf

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2634879B1 (fr) * 1988-08-01 1990-10-12 Giroud Alexandre Cartouche de transmission ou de recuperation
GB8918267D0 (en) * 1989-08-10 1990-04-25 British Aerospace Weapon systems
DE4116420C2 (de) * 1991-05-18 1994-06-23 Rheinmetall Gmbh Gefechtskopf mit einer Vor- und einer Haupthohlladung
US5609342A (en) * 1993-07-09 1997-03-11 Revolve Technologies, Inc. Gas shaft seal with flexible converging sealing faces
US5750918A (en) * 1995-10-17 1998-05-12 Foster-Miller, Inc. Ballistically deployed restraining net
US5834684A (en) * 1996-08-19 1998-11-10 Lockheed Martin Vought Systems Corporation Penetrator having multiple impact segments
US6021716A (en) * 1997-07-18 2000-02-08 Lockheed Martin Corporation Penetrator having multiple impact segments
US5988071A (en) * 1997-08-21 1999-11-23 Lockheed Martin Corporation Penetrator having multiple impact segments, including an explosive segment
AUPR867101A0 (en) * 2001-11-02 2001-11-29 Marine Research Wa Pty Ltd Munitions
US6931994B2 (en) * 2002-08-29 2005-08-23 Raytheon Company Tandem warhead
CA2541786C (en) 2003-10-14 2008-12-30 Raytheon Company Mine counter measure system
US20090320711A1 (en) * 2004-11-29 2009-12-31 Lloyd Richard M Munition

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173365A (en) * 1962-05-18 1965-03-16 Bruno M Battaglini Composite bomb
US3416448A (en) * 1966-07-05 1968-12-17 Army Usa Control system for stand-off functioning of a projectile in flight over a target area
FR2310547A1 (fr) * 1975-05-06 1976-12-03 Realisa Et Applic Tech Et Perfectionnements aux charges creuses
WO1986000979A1 (en) * 1984-07-30 1986-02-13 General Electric Company Shaped charge projectile system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE75404C (de) * B. POETZSCH in Erfurt, Göbenstrafse 1 Sicherheits-Kleiderhaken mit Stockhalter
US1343747A (en) * 1918-10-25 1920-06-15 Radakovich Michael Projectile
GB547848A (en) * 1940-12-05 1942-09-15 Lloyds Bank Improvements in or relating to projectiles
US2804823A (en) * 1955-05-13 1957-09-03 Jablansky Louis Multiple unit projectile
US4271761A (en) * 1979-04-23 1981-06-09 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration High acceleration cable deployment system
US4327644A (en) * 1979-05-01 1982-05-04 Stahan Corporation Projectile deployed cable weapons system
DE3004047C2 (de) * 1980-02-05 1984-10-31 Rheinmetall GmbH, 4000 Düsseldorf Panzerbrechendes Geschoß
DE3127002A1 (de) * 1981-07-09 1983-01-20 Rheinmetall GmbH, 4000 Düsseldorf Geschossanordnung fuer eine rohrwaffe
FR2540238B1 (fr) * 1983-01-27 1987-01-16 Serat Perfectionnements apportes aux charges creuses doubles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173365A (en) * 1962-05-18 1965-03-16 Bruno M Battaglini Composite bomb
US3416448A (en) * 1966-07-05 1968-12-17 Army Usa Control system for stand-off functioning of a projectile in flight over a target area
FR2310547A1 (fr) * 1975-05-06 1976-12-03 Realisa Et Applic Tech Et Perfectionnements aux charges creuses
WO1986000979A1 (en) * 1984-07-30 1986-02-13 General Electric Company Shaped charge projectile system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2244797A (en) * 1990-06-05 1991-12-11 Serat Tandem charge for attacking armoured vehicles
GB2244797B (en) * 1990-06-05 1993-12-15 Serat Tandem charge for attacking armoured vehicles
DE19758457B3 (de) * 1997-09-24 2015-03-26 Nexter Munitions Gefechtskopf

Also Published As

Publication number Publication date
FR2609542A1 (fr) 1988-07-15
FR2609542B1 (fr) 1994-05-06
EP0279709B1 (de) 1991-05-15
US4907512A (en) 1990-03-13
DE3862770D1 (de) 1991-06-20

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