EP0086708A1 - Patrone zum Verschiessen elektromagnetischer Düppel, ausgerüstet mit mehreren Einzelladungen - Google Patents
Patrone zum Verschiessen elektromagnetischer Düppel, ausgerüstet mit mehreren Einzelladungen Download PDFInfo
- Publication number
- EP0086708A1 EP0086708A1 EP83400277A EP83400277A EP0086708A1 EP 0086708 A1 EP0086708 A1 EP 0086708A1 EP 83400277 A EP83400277 A EP 83400277A EP 83400277 A EP83400277 A EP 83400277A EP 0086708 A1 EP0086708 A1 EP 0086708A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cartridge according
- charge
- pyrotechnic
- initiator
- lures
- 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
- 235000012431 wafers Nutrition 0.000 claims abstract description 19
- 235000012771 pancakes Nutrition 0.000 claims abstract description 15
- 239000003999 initiator Substances 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000037452 priming Effects 0.000 claims description 2
- 230000000977 initiatory effect Effects 0.000 abstract description 3
- 239000006185 dispersion Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001934 delay Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Images
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
- F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
- F42B12/56—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing discrete solid bodies
- F42B12/58—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles
- F42B12/62—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles the submissiles being ejected parallel to the longitudinal axis of the projectile
-
- 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
- F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
- F42B12/56—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing discrete solid bodies
- F42B12/70—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing discrete solid bodies for dispensing radar chaff or infrared material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
- F42B5/02—Cartridges, i.e. cases with charge and missile
- F42B5/03—Cartridges, i.e. cases with charge and missile containing more than one missile
- F42B5/035—Cartridges, i.e. cases with charge and missile containing more than one missile the cartridge or barrel assembly having a plurality of axially stacked projectiles each having a separate propellant charge
Definitions
- the present invention relates to an electromagnetic decoy launching cartridge.
- Ammunition of this type is intended to spread in the atmosphere a cloud of decoys, that is to say fine metallic or metallized flakes forming a screen reflecting electromagnetic waves such as radar waves, with a view to jamming or on the contrary as a means of location.
- the reflective screen effect is linked to the quality of the dispersion of the flakes in the atmosphere.
- Many forms of envelopes have been proposed to improve this factor, as well as partitions of the load of lures to improve their spatial distribution during the explosion of the dispersing load.
- the invention provides ammunition of this type: not only is the charge of decoys divided there, but each individual charge of decoys has its own dispersing pyrotechnic charge, the various charges of the cartridge being advantageously connected to each other by pyrotechnic retarders ; the pyrotechnic chain formed by the dispersing charges and the alternating retarders forms a continuous pyrotechnic chain, which can be initiated by an initiating charge located at the end of the chain.
- This arrangement allows, after priming of the initiator, the successive ejection of the pancakes in one predetermined time sequence. It is in particular possible, by an appropriate choice of the values of the delays in this sequence, to produce a cloud of decoys whose dynamic evolution can simulate the movement of an aircraft, and in particular create confusion with the launching aircraft of the ammunition.
- the ejection of the lures must be perfectly controlled, both in time and in space.
- the invention provides a cartridge comprising: an elongated tube with an open upper end and a closed lower end; a plurality of individual pancakes, containing the electromagnetic lures, stacked lengthwise of the tube; at least one of the upper and lower surfaces of each pancake being in the form of a flattened cone; each pancake being provided at its lower part with a pyrotechnic charge capable of projecting it in the direction of the open end and of dispersing the lures; each charge being connected to the adjacent charge by a pyrotechnic retarder; the upper charge of the stack being provided with at least one pyrotechnic initiator; the assembly formed by the initiator, the charges and the retarders forming a continuous pyrotechnic chain.
- the flattened cone forming the upper or lower surface of each wafer has its apex directed towards the upper end of the cartridge.
- each pancake is in the form of a flattened cone, the two corresponding cones having the same half-angle at the top, the value of the latter being advantageously between 80 and 89 °.
- the assembly and therefore its content, preferably has a symmetry of revolution with respect to the axis of the tube.
- Each pancake comprises, in a preferred embodiment: an individual envelope containing the lures, of substantially outer section equal to the inner section of the tube, closed on its upper face, with the exception of an orifice allowing the transmission of fire; a closing disc of the lower face, provided with a hollow axial extension, opening in the direction of the orifice of the upper face of the envelope and containing the retarder, the disc also being provided with an open cavity capable of receiving the load of the cake; and a shutter of this cavity comprising an orifice allowing the transmission of fire.
- the values of the delays are advantageously between 0.05 and 0.4 s.
- the cartridge firstly consists of an elongated tube 100, preferably cylindrical, the upper end 110 of which is open and the lower end of 120, closed.
- a plurality of wafers 200 containing the lures 210 are stacked inside the tube 100. These wafers may be identical, but they do not are not necessarily if you wish, for example, to load the same cartridge with lures of different lengths.
- each of the pancakes it is also possible - but inside each of the pancakes - to have lures of different lengths, if care is taken to make transverse cuts 290, in particular after having conditioned the pancakes between two faces in the form of a flattened cone ( surfaces 210 and 202).
- Each pancake is provided with a dispersing pyrotechnic charge 220 making it possible to project the lures out of the cartridge and to diffuse them into the atmosphere.
- Each of these charges is connected to the preceding (upper) charge via a pyrotechnic retarder 230, thus forming a continuous pyrotechnic chain.
- the first charge of this chain (the upper charge) is possibly initiated by means of an additional pyrotechnic delay 231 which is itself ignited by a pyrotechnic initiator 300.
- the initiation of this initiator 300 is carried out electrically, by means of flat wires 310 enclosed in the tube and opening, at the other end 120 thereof, on terminals 320 and 330.
- These terminals can be for example coaxial, one of the terminals, for example the terminal 330, being constituted by the metallic mass formed by the sleeve 130 closing the lower end of the tube.
- a sleeve 340 provides electrical insulation.
- a removable protective cover 400 This cover is ejected under the effect of the explosion of the first charge of the pyrotechnic chain.
- FIG. 2 shows in detail one of the wafers 200 located inside the tube 100.
- This cake has an individual envelope 240 containing the lures 210; the outer section of this envelope is substantially equal to the inner section of the tube 100, to allow easy stacking of the wafers at the time of assembly of the various elements of the cartridge.
- the upper face 241 of the envelope is closed, with the exception of an orifice 242 allowing the transmission of fire coming from the charge of the preceding wafer, this fire transmission allowing the retarder 230 to be started.
- the underside of the individual envelope is closed by a disc 250, provided with an axial extension 251 containing the retarder 230.
- This closing disc 250 is also provided with a cavity 252 open at the bottom and containing the dispersing pyrotechnic charge 220.
- This cavity is finally itself closed by a shutter 260, provided in its center with an orifice 271 allowing the transmission of fire to the next (lower) wafer.
- the axial extension comprises an emerging part 253 passing through the orifice 242 of the individual envelope.
- This emerging part is provided with a circular groove 254 allowing it to snap into the orifice 261 of the shutter of the preceding (upper) wafer. This snap-in allows securing the stack of pancakes after assembly.
- a volume 255 of air separates the retarder from the previous dispersing charge.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Bakery Products And Manufacturing Methods Therefor (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Slot Machines And Peripheral Devices (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8202575 | 1982-02-17 | ||
FR8202575A FR2521716B1 (fr) | 1982-02-17 | 1982-02-17 | Cartouche lance-leurres electromagnetiques a charges multiples |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0086708A1 true EP0086708A1 (de) | 1983-08-24 |
EP0086708B1 EP0086708B1 (de) | 1986-04-30 |
Family
ID=9271061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83400277A Expired EP0086708B1 (de) | 1982-02-17 | 1983-02-09 | Patrone zum Verschiessen elektromagnetischer Düppel, ausgerüstet mit mehreren Einzelladungen |
Country Status (4)
Country | Link |
---|---|
US (1) | US4549489A (de) |
EP (1) | EP0086708B1 (de) |
DE (1) | DE3363236D1 (de) |
FR (1) | FR2521716B1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0164732A1 (de) * | 1984-06-12 | 1985-12-18 | Buck Werke GmbH & Co | Einrichtung zur Erzeugung einer Scheinzielwolke, insbesondere einer Infrarot-Scheinzielwolke |
FR2697329A1 (fr) * | 1992-10-23 | 1994-04-29 | Giat Ind Sa | Munition fumigène. |
EP0636854A1 (de) * | 1992-10-23 | 1995-02-01 | GIAT Industries | Nebelwurfkörper |
DE19617701A1 (de) * | 1996-05-03 | 1997-11-20 | Buck Chem Tech Werke | Verfahren zum Bereitstellen eines Scheinziels |
FR3006046A1 (fr) * | 2013-05-22 | 2014-11-28 | Nexter Munitions | Munition de protection a ejection sequentielle |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4791870A (en) * | 1983-04-05 | 1988-12-20 | Haley & Weller Limited | Pyrotechnic assembly |
FR2547910B1 (fr) * | 1983-06-27 | 1987-01-23 | Lacroix E Tous Artifices | Projectile pour dispersion de munitions |
FR2616899B1 (fr) * | 1987-06-16 | 1993-04-02 | Lacroix E Tous Artifices | Conteneur-disperseur de paillettes metalliques ou metallisees formant leurres electromagnetiques |
DE4001673A1 (de) * | 1990-01-22 | 1991-07-25 | Rheinmetall Gmbh | Leicht-uebungsbomblet mit axial vorspannbaren gehaeusedeckeln |
US5212488A (en) * | 1992-01-21 | 1993-05-18 | Konotchick John A | Ellipsoidal chaff |
US5411225A (en) * | 1993-07-26 | 1995-05-02 | Lannon; Robert G. | Reusable non-pyrotechnic countermeasure dispenser cartridge for aircraft |
US5954563A (en) * | 1998-05-26 | 1999-09-21 | Spriggs; Harry J | Device for propelling novelty items |
CA2368893C (en) * | 1999-04-07 | 2011-05-24 | Metal Storm Limited | Projectile firing apparatus |
DE19951767C2 (de) * | 1999-10-27 | 2002-06-27 | Buck Neue Technologien Gmbh | Dual-Mode-Täuschkörper |
AUPS182802A0 (en) * | 2002-04-19 | 2002-05-30 | Metal Storm Limited | Projectile sealing arrangement |
DE10308307B4 (de) * | 2003-02-26 | 2007-01-04 | Buck Neue Technologien Gmbh | Geschoß sowie Submunition mit Vorspannkörper |
DE102005035251A1 (de) * | 2005-07-25 | 2007-02-01 | Rheinmetall Waffe Munition Gmbh | Verfahren und Vorrichtung zur Täuschung infrarot-, radar- als auch Dual Mode- gelenkter Flugkörper |
DE102008028292B4 (de) | 2008-06-13 | 2021-10-14 | Diehl Defence Gmbh & Co. Kg | Nebelwurfkörper |
US20100242775A1 (en) * | 2009-03-31 | 2010-09-30 | John Felix Schneider | Short Term Power Grid Disruption Device |
US8082849B2 (en) * | 2009-03-31 | 2011-12-27 | The United States Of America As Represented By The Secretary Of The Navy | Short term power grid disruption device |
US7987791B2 (en) * | 2009-03-31 | 2011-08-02 | United States Of America As Represented By The Secretary Of The Navy | Method of disrupting electrical power transmission |
US10318904B2 (en) | 2016-05-06 | 2019-06-11 | General Electric Company | Computing system to control the use of physical state attainment of assets to meet temporal performance criteria |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH218665A (de) * | 1940-12-30 | 1941-12-31 | Benz Enrico | Brand- und Sprenggeschoss, insbesondere für Flugzeugabwehr. |
US3718070A (en) * | 1971-04-23 | 1973-02-27 | Us Army | Expendable launcher munition |
US3808940A (en) * | 1964-12-24 | 1974-05-07 | Gen Dynamics Corp | Portable decoy launcher system and rounds therefor |
FR2215404A1 (en) * | 1973-01-29 | 1974-08-23 | Bedier Joel | Rocket type firework - emitting coloured stars at intervals |
US3841219A (en) * | 1964-08-12 | 1974-10-15 | Gen Dynamics Corp | Decoy rounds for counter measures system |
FR2436363A1 (fr) * | 1978-09-15 | 1980-04-11 | Lacroix E | Cartouche a plusieurs charges de leurres distinctes |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1771453A (en) * | 1928-06-09 | 1930-07-29 | American Telephone & Telegraph | Regenerative telegraph repeater |
US2459687A (en) * | 1937-06-22 | 1949-01-18 | Josef B Decker | Aerial signal |
US2476302A (en) * | 1944-10-27 | 1949-07-19 | Morris R Jeppson | Self-propelled projectile for distributing material |
GB1434034A (en) * | 1972-07-11 | 1976-04-28 | Bender Ltd F | Method and equipment for forming a single cloud of radar reflecting chaff within the atmosphere |
GB1534134A (en) * | 1975-12-12 | 1978-11-29 | Lacroix Soc E | Lure launching cartridges |
US4063515A (en) * | 1976-06-11 | 1977-12-20 | Calspan Corporation | Dispersive subprojectiles for chaff cartridges |
FR2383419A1 (fr) * | 1977-03-07 | 1978-10-06 | Lacroix E | Valise lance-leurres pour la deception des systemes de guidage d'armes |
FR2469691B1 (fr) * | 1979-11-09 | 1985-11-15 | Lacroix E Tous Artifices | Munition lance-leurres electromagnetiques a chargement simplifie |
-
1982
- 1982-02-17 FR FR8202575A patent/FR2521716B1/fr not_active Expired
-
1983
- 1983-02-09 US US06/465,284 patent/US4549489A/en not_active Expired - Fee Related
- 1983-02-09 EP EP83400277A patent/EP0086708B1/de not_active Expired
- 1983-02-09 DE DE8383400277T patent/DE3363236D1/de not_active Expired
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH218665A (de) * | 1940-12-30 | 1941-12-31 | Benz Enrico | Brand- und Sprenggeschoss, insbesondere für Flugzeugabwehr. |
US3841219A (en) * | 1964-08-12 | 1974-10-15 | Gen Dynamics Corp | Decoy rounds for counter measures system |
US3808940A (en) * | 1964-12-24 | 1974-05-07 | Gen Dynamics Corp | Portable decoy launcher system and rounds therefor |
US3718070A (en) * | 1971-04-23 | 1973-02-27 | Us Army | Expendable launcher munition |
FR2215404A1 (en) * | 1973-01-29 | 1974-08-23 | Bedier Joel | Rocket type firework - emitting coloured stars at intervals |
FR2436363A1 (fr) * | 1978-09-15 | 1980-04-11 | Lacroix E | Cartouche a plusieurs charges de leurres distinctes |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0164732A1 (de) * | 1984-06-12 | 1985-12-18 | Buck Werke GmbH & Co | Einrichtung zur Erzeugung einer Scheinzielwolke, insbesondere einer Infrarot-Scheinzielwolke |
FR2697329A1 (fr) * | 1992-10-23 | 1994-04-29 | Giat Ind Sa | Munition fumigène. |
EP0636854A1 (de) * | 1992-10-23 | 1995-02-01 | GIAT Industries | Nebelwurfkörper |
DE19617701A1 (de) * | 1996-05-03 | 1997-11-20 | Buck Chem Tech Werke | Verfahren zum Bereitstellen eines Scheinziels |
US5835051A (en) * | 1996-05-03 | 1998-11-10 | Buck Werke Gmbh & Co. | Method for offering a phantom target |
DE19617701C2 (de) * | 1996-05-03 | 2000-01-13 | Buck Werke Gmbh & Co I K | Verfahren zum Bereitstellen eines Scheinziels |
FR3006046A1 (fr) * | 2013-05-22 | 2014-11-28 | Nexter Munitions | Munition de protection a ejection sequentielle |
Also Published As
Publication number | Publication date |
---|---|
DE3363236D1 (en) | 1986-06-05 |
US4549489A (en) | 1985-10-29 |
EP0086708B1 (de) | 1986-04-30 |
FR2521716B1 (fr) | 1987-01-02 |
FR2521716A1 (fr) | 1983-08-19 |
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