US20090151590A1 - Munition or projectile for battlefield illumination - Google Patents

Munition or projectile for battlefield illumination Download PDF

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Publication number
US20090151590A1
US20090151590A1 US12/313,982 US31398208A US2009151590A1 US 20090151590 A1 US20090151590 A1 US 20090151590A1 US 31398208 A US31398208 A US 31398208A US 2009151590 A1 US2009151590 A1 US 2009151590A1
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US
United States
Prior art keywords
flare
projectile
bodies
accordance
expulsion
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.)
Abandoned
Application number
US12/313,982
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English (en)
Inventor
Ole Dau
Alfons Sackarndt
Uwe Naderhoff
Michael Schwenzer
Ralf Aumund-Kopp
Manfred Thape
Sebastian Munzner
Martin Rybol
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 Waffe Munition GmbH
Original Assignee
Rheinmetall Waffe Munition 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 Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Assigned to RHEINMETALL WAFFE MUNITION GMBH reassignment RHEINMETALL WAFFE MUNITION GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SACKAMDT, ALFONS, THAPE, MANFRED, AUMOND-KOPP, RALF, MUNZER, SEBASTIAN, NADERHOFF, UWE, OAU, OLE, RYBOL, MARTIN, SCHWENZER, MICHAEL
Publication of US20090151590A1 publication Critical patent/US20090151590A1/en
Priority to US14/017,133 priority Critical patent/US20150241181A1/en
Abandoned 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
    • F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/26—Flares; Torches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/26—Flares; Torches
    • F42B4/28—Parachute flares
    • 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
    • F42B12/42—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 of illuminating type, e.g. carrying flares
    • 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

Definitions

  • the invention concerns a munition, a projectile, or the like with several flare bodies for battlefield illumination.
  • Flare munition for battlefield illumination is either shot from a weapon, e.g., a mortar, (illuminating grenade) or dropped from a missile such as a bomb (illuminating bomb). It consists basically of a slowly burning pyrotechnic material (for example, a magnesium compound), which is expelled from the munition a predetermined time after the munition has been fired, and floats to the ground on a parachute. During its descent, the flare body emits light in the visible and/or infrared wavelength range, thereby illuminating a target or target area.
  • flare projectiles contain a single flare body.
  • the flare body is expelled from the body of the projectile by an expulsion charge after a period of time that can be set in the time fuse.
  • the base separates during the expulsion, and the submunition is forced out of the body of the projectile by an expulsion plate. The descent of the flare body is then slowed by one or more parachute systems.
  • DE 28 30 224 C2 describes a projectile with a payload.
  • the payload carried in the projectile is a flare body using a parachute as a brake system.
  • the flare body is one which has pyrotechnic ignition
  • parts that are burning while combustion is taking place during the descent of the flare body can become detached and fall to the earth, which is associated with increased danger of fire, a hazard to persons and the environment, and a decrease in the burn time.
  • the flare body is designed for infrared illumination of the battlefield, the combustion also necessarily emits visible light, which is precisely what one is trying to prevent in the first place.
  • the labor involved in the removal and recovery of pyrotechnic material is relatively great.
  • a flare munition of this type with a flare body expelled from the body of a projectile and suspended on a parachute is already known from the previously unpublished patent application DE 10 2007 048 074.3.
  • the flare body consists essentially of a cylindrical housing and a support plate mounted on the bottom of the housing with a plurality of light-emitting diodes (LEDs) arranged in an array, which illuminate a battlefield and are suspended on a parachute.
  • the LEDs of the flare body are connected with a power source via an electronic control unit.
  • the control unit ensures that power is supplied to the LEDs only after the parachute has opened and only during the subsequent descent phase of the flare body.
  • a disadvantage here is that in the event of a malfunction of the parachute, the battlefield is not illuminated at all. In weather-related situations, for example, gusty winds, rolling or tumbling movements can occur. This movement of the flare body gives rise to moving shadows, which make it difficult to observe the battlefield. In this case, the flare body can perform its actual function to only a limited extent.
  • the diameter of the flare body is comparatively large. As a result, they are also very heavy and necessitate large dimensioning of the parachute. When the projectile base separation occurs, the parachute system can sustain damage as it deploys.
  • DE 2 103 672 A1 discloses a multiple charge for illuminating a ground surface or body of water.
  • a predetermined number of partial charges each with a charge of pyrotechnic compound and an associated parachute, is held in a cavity of a housing or container.
  • Each partial charge is equipped with a delay powder charge, which is adapted to each respective partial charge.
  • the different partial charges have different delay times; specifically, a partial charge that is expelled from the container before another partial charge has a shorter delay time. The result is successive expulsion of the partial charges from the housing or container into the atmosphere, while the delay times themselves are chosen in such a way that broad scattering of the partial charges in the atmosphere is obtained.
  • the object of the present invention is to provide a flare munition with multiple charges that does not have the disadvantages pointed to above.
  • the invention is likewise based on the idea of placing several flare bodies in a projectile or body of a projectile, where the systems for reducing the rate of descent or the brake systems (such as parachutes, etc.) are made ready to operate by a delay element only after a predetermined flight time and after stabilization.
  • the flare bodies can be placed in all types of containers or bodies, such as the bodies of artillery shells.
  • Filler pieces between the flare bodies are to be adapted to the flare bodies and possibly the number of flare bodies as well.
  • the filler pieces or filler elements preferably form a central ignition channel for the ignition of the flare bodies.
  • the flare bodies Due to the eccentric arrangement of the flare bodies inside the projectile bodies, the flare bodies are dispersed far more favorably after their expulsion than previously known systems with a single flare body or multiple flare bodies. This has the further result that the flare bodies are not struck or damaged as much by the base of the projectile.
  • flare bodies also makes it possible for them to serve as modules for different projectiles. As a result of the distribution of several flare bodies at several levels in the projectile, better illumination is produced by the simultaneously shining flare bodies.
  • the flare bodies are integrated in two or more levels inside the projectile, it makes sense, for example, to vary the delay times of the flare bodies of the different levels. Due to the fact that different delay times can be set, the flare bodies then start to shine at different times. The advantage associated with this is that, when the different delay times are coordinated, the total period of illumination can be increased. In the event of a malfunction of a system for reducing the rate of descent or in the event of an ignition failure, the other flare bodies continue to be functional.
  • flare bodies due to the lower mass and size of the individual flare bodies, the systems for reducing the rate of descent no longer have to support such heavy loads.
  • Simpler stabilization mechanisms can be incorporated, which for their part greatly reduce the loads caused by spinning and high velocity, so that simple descent systems can be used.
  • the greater impact of weather conditions that is associated with the weight reduction is compensated by the fact that all of the flare bodies are subject to the tumbling movements associated with gusty conditions, so that the ground surface area to be illuminated is illuminated from several directions, even if the flare bodies are tumbling.
  • the flare bodies are accelerated radially outward from the body of the projectile by the expulsion charge via the ignition channel.
  • Another advantage is that, with these flare bodies, sufficient illumination is provided while undesired blinding is avoided.
  • FIG. 1 shows a sectional side view of a projectile that contains flare bodies.
  • FIG. 2 shows a sectional view of a flare body from FIG. 1 .
  • FIG. 3 shows a scenario for the deployment of the flare bodies.
  • FIG. 1 shows a projectile 1 , which consists of a projectile body 2 , an expulsion charge 3 and an expulsion plate. Besides a projectile fuse 5 and a projectile base 6 , the projectile 1 contains flare bodies 7 and filler elements 8 . In the present case, the flare bodies 7 are positioned on two levels 14 , 15 . In the case illustrated here, eight flare bodies 7 are incorporated in the projectile 1 .
  • the filler elements 8 preferably form a central channel 10 in the projectile 1 for the expulsion gases, by which the delay elements 11 , 12 of the flare bodies 7 are ignited.
  • the individual flare body 7 itself consists of a jacket 18 , which houses, for example, a pyrotechnic compound 19 , then, at least in this case, preferably two delay elements 11 , 12 or a twin-stage delay element, an expulsion system 16 , 22 , and a parachute 17 ( FIG. 2 ).
  • a stabilizing element 13 is located on the outer jacket, but this is not absolutely necessary.
  • the time after which the expulsion charge 3 is to be initiated is adjusted by means of the projectile fuse 5 .
  • the range at which the battlefield illumination is to be provided is determined by the elevation of the gun (not shown), the charge selection, and the setting of the projectile fuse 5 .
  • the projectile fuse 5 initiates the expulsion charge 3 .
  • the combustion of the expulsion charge 3 causes pressure to be generated in the body 2 of the projectile 1 in the region of the ogive 9 .
  • This pressure acts on the expulsion plate 4 and is transmitted to the base 6 of the projectile via the flare bodies 7 and the filler elements 8 .
  • the base 6 shears off, and the flare bodies 7 as well as the filler elements 8 are expelled by the expulsion plate 4 from the rear end of the body 2 of the projectile.
  • the combustion gases are being conveyed through the channel 10 to the delay elements 11 , 12 of the flare bodies 7 .
  • the combustion gases are conveyed from the channel 10 to the delay elements 11 , 12 through ignition bores 23 in the filler elements 8 .
  • the stabilizing elements 13 on the flare bodies 7 reduce both the spin and the speed and ensure a well-defined descent.
  • the stabilizing elements 13 on the flare bodies 7 can be extended by the intrinsic spin of the flare bodies 7 . Other possibilities for deploying the stabilizing elements 13 are available.
  • a separating screw 16 or the like is separated, and a cover 22 is thrown off. This then allows the parachute 17 on each flare body 7 to deploy.
  • the actual pyrotechnic compounds 19 are ignited.
  • the setting times of the second delay elements 12 are different for the flare bodies 7 of the levels 14 and 15 .
  • the pyrotechnic compounds 19 of level 14 or 15 starts to burn first and to illuminate the battlefield 20 . Due to the scattering 21 of the flare bodies 7 after their expulsion from the body 2 of the projectile, the battlefield area 20 that is illuminated is greater than the area 24 that is illuminated by an individual flare body 7 .
  • the delay elements 12 of the flare bodies 7 of the different levels 14 , 15 are coordinated with one another in such a way that the pyrotechnic compounds 19 of the level 14 or 15 are ignited before the flare bodies 7 of the other level start to shine. This delay makes it possible to increase the total illumination time compared to conventional illumination systems.
  • LEDs can be used instead of the pyrotechnic compound 19 .
  • a twin-stage delay mechanism 11 , 12 in the form described above is unnecessary, since a single-stage delay mechanism is then sufficient.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
US12/313,982 2007-11-26 2008-11-26 Munition or projectile for battlefield illumination Abandoned US20090151590A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/017,133 US20150241181A1 (en) 2007-11-26 2013-09-03 Munition or projectile for battlefield illumination

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007057184 2007-11-26
DE102007057184A DE102007057184A1 (de) 2007-11-26 2007-11-26 Munition oder Geschoss zur Gefechtsfeldbeleuchtung

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/017,133 Continuation US20150241181A1 (en) 2007-11-26 2013-09-03 Munition or projectile for battlefield illumination

Publications (1)

Publication Number Publication Date
US20090151590A1 true US20090151590A1 (en) 2009-06-18

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US12/313,982 Abandoned US20090151590A1 (en) 2007-11-26 2008-11-26 Munition or projectile for battlefield illumination
US14/017,133 Abandoned US20150241181A1 (en) 2007-11-26 2013-09-03 Munition or projectile for battlefield illumination

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Country Status (4)

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US (2) US20090151590A1 (de)
EP (1) EP2063215B1 (de)
DE (1) DE102007057184A1 (de)
IL (1) IL195486A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110088582A1 (en) * 2008-04-18 2011-04-21 Rheinmetall Waffe Munition Gmbh Active body for a submunition having effective agents
GB2517445A (en) * 2013-08-20 2015-02-25 Bae Systems Plc Illumination Munition
US9528802B1 (en) * 2015-11-19 2016-12-27 The United States Of America As Represented By The Secretary Of The Army Indirect fire munition non-lethal cargo carrier mortar
US9778004B2 (en) 2013-08-20 2017-10-03 Bae Systems Plc Smoke payload apparatus
US9784544B2 (en) 2013-08-20 2017-10-10 Bae Systems Plc Frangible munition
US9797698B2 (en) 2013-08-20 2017-10-24 Bae Systems Plc Common carrier munition
CN108225124A (zh) * 2017-12-29 2018-06-29 广州卫富科技开发有限公司 一种悬挂遥控式隐形照明弹
US10030953B2 (en) 2013-08-20 2018-07-24 Bae Systems Plc Illumination munition

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012017603A1 (de) * 2012-09-06 2014-03-06 Rheinmetall Waffe Munition Gmbh Aus einer tragbaren, rückstoßfreien Waffe verschießbarer Leuchtmunitionskörper
DE102013010357A1 (de) 2013-06-21 2014-12-24 Rheinmetall Waffe Munition Gmbh Geschoss mit Effekt- bzw. Signalwirkung
DE102013011219B3 (de) 2013-07-05 2014-06-26 Rheinmetall Waffe Munition Gmbh Aus einem drallstabilisierten Trägergeschoss ausstoßbare Submunition, insbesondere Leuchtmunition
DE102018130958A1 (de) 2018-12-05 2020-06-10 Rheinmetall Waffe Munition Gmbh Geschoss und Artilleriemunition
DE102020116230A1 (de) 2020-06-19 2021-12-23 Rheinmetall Waffe Munition Gmbh Geschoss und Munition

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US1588639A (en) * 1925-08-03 1926-06-15 Wiley Samuel Emergency-landing flare
US1891172A (en) * 1931-06-24 1932-12-13 Charles L Paulus Parachute flare
US3351017A (en) * 1967-01-17 1967-11-07 Jack A Myers Air-arming impact fuze
US3808941A (en) * 1972-02-09 1974-05-07 Dynapac Inc Dispenser for flares and the like
US3981244A (en) * 1972-02-28 1976-09-21 The United States Of America As Represented By The Secretary Of The Army Pyramid projectile payload ejection device
US4183302A (en) * 1967-11-06 1980-01-15 General Dynamics Pomona Division Sequential burst system
US4226185A (en) * 1977-09-02 1980-10-07 Werkzeugmaschinenfabrik Oerlikon-Buhrle Ag Projectile with a payload
US4793260A (en) * 1986-08-30 1988-12-27 Rheinmetall Gmbh Spin-stabilized bomblet-carrying projectile
US5076171A (en) * 1989-10-14 1991-12-31 Rheinmetall Gmbh Bomblet carrier projectile equipped with lightweight training bomblets arranged in layers
US5175390A (en) * 1990-12-16 1992-12-29 Israel Military Industries Ltd. Delay detonator
US5317975A (en) * 1991-11-06 1994-06-07 Giat Industries Device for ejecting payload elements from the casing of a carrier shell
US6874425B1 (en) * 2001-05-18 2005-04-05 Day & Zimmermann, Inc. Projectile carrying sub-munitions

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USH699H (en) * 1989-07-10 1989-11-07 The United States Of America As Represented By The Secretary Of The Army Submunition fuse with pyrotechnic ignition
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Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1011002A (en) * 1911-05-17 1911-12-05 Krupp Ag Search-light projectile.
US1003082A (en) * 1911-05-22 1911-09-12 Krupp Ag Search-light projectile.
US1588639A (en) * 1925-08-03 1926-06-15 Wiley Samuel Emergency-landing flare
US1891172A (en) * 1931-06-24 1932-12-13 Charles L Paulus Parachute flare
US3351017A (en) * 1967-01-17 1967-11-07 Jack A Myers Air-arming impact fuze
US4183302A (en) * 1967-11-06 1980-01-15 General Dynamics Pomona Division Sequential burst system
US3808941A (en) * 1972-02-09 1974-05-07 Dynapac Inc Dispenser for flares and the like
US3981244A (en) * 1972-02-28 1976-09-21 The United States Of America As Represented By The Secretary Of The Army Pyramid projectile payload ejection device
US4226185A (en) * 1977-09-02 1980-10-07 Werkzeugmaschinenfabrik Oerlikon-Buhrle Ag Projectile with a payload
US4793260A (en) * 1986-08-30 1988-12-27 Rheinmetall Gmbh Spin-stabilized bomblet-carrying projectile
US5076171A (en) * 1989-10-14 1991-12-31 Rheinmetall Gmbh Bomblet carrier projectile equipped with lightweight training bomblets arranged in layers
US5175390A (en) * 1990-12-16 1992-12-29 Israel Military Industries Ltd. Delay detonator
US5317975A (en) * 1991-11-06 1994-06-07 Giat Industries Device for ejecting payload elements from the casing of a carrier shell
US6874425B1 (en) * 2001-05-18 2005-04-05 Day & Zimmermann, Inc. Projectile carrying sub-munitions

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110088582A1 (en) * 2008-04-18 2011-04-21 Rheinmetall Waffe Munition Gmbh Active body for a submunition having effective agents
GB2517445A (en) * 2013-08-20 2015-02-25 Bae Systems Plc Illumination Munition
US9778004B2 (en) 2013-08-20 2017-10-03 Bae Systems Plc Smoke payload apparatus
US9784544B2 (en) 2013-08-20 2017-10-10 Bae Systems Plc Frangible munition
US9797698B2 (en) 2013-08-20 2017-10-24 Bae Systems Plc Common carrier munition
US10030953B2 (en) 2013-08-20 2018-07-24 Bae Systems Plc Illumination munition
GB2517445B (en) * 2013-08-20 2020-04-29 Bae Systems Plc Illumination munition
US9528802B1 (en) * 2015-11-19 2016-12-27 The United States Of America As Represented By The Secretary Of The Army Indirect fire munition non-lethal cargo carrier mortar
CN108225124A (zh) * 2017-12-29 2018-06-29 广州卫富科技开发有限公司 一种悬挂遥控式隐形照明弹

Also Published As

Publication number Publication date
DE102007057184A1 (de) 2009-05-28
EP2063215A2 (de) 2009-05-27
EP2063215B1 (de) 2015-01-07
US20150241181A1 (en) 2015-08-27
EP2063215A3 (de) 2013-02-20
IL195486A0 (en) 2009-09-01
IL195486A (en) 2014-05-28

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AS Assignment

Owner name: RHEINMETALL WAFFE MUNITION GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OAU, OLE;SACKAMDT, ALFONS;NADERHOFF, UWE;AND OTHERS;REEL/FRAME:022350/0930;SIGNING DATES FROM 20081029 TO 20081202

STCB Information on status: application discontinuation

Free format text: ABANDONED -- AFTER EXAMINER'S ANSWER OR BOARD OF APPEALS DECISION