EP2048470A2 - A bomb, bomb explosive filling and a method of filling a bomb - Google Patents
A bomb, bomb explosive filling and a method of filling a bomb Download PDFInfo
- Publication number
- EP2048470A2 EP2048470A2 EP08253316A EP08253316A EP2048470A2 EP 2048470 A2 EP2048470 A2 EP 2048470A2 EP 08253316 A EP08253316 A EP 08253316A EP 08253316 A EP08253316 A EP 08253316A EP 2048470 A2 EP2048470 A2 EP 2048470A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- bomb
- filling
- explosive
- charge
- inert
- 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.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B25/00—Fall bombs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
- F42B33/02—Filling cartridges, missiles, or fuzes; Inserting propellant or explosive charges
- F42B33/0214—Filling cartridges, missiles, or fuzes; Inserting propellant or explosive charges by casting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
- F42B33/02—Filling cartridges, missiles, or fuzes; Inserting propellant or explosive charges
- F42B33/0285—Measuring explosive-charge levels in containers or cartridge cases; Methods or devices for controlling the quantity of material fed or filled
Definitions
- This invention relates to a bomb and in particular to a novel explosive filling and method of filling a bomb.
- the method used to determine these terminal effects is that of bomb size and explosive capacity.
- Modern bombs display certain insensitivities to external stimuli such as fire, slow heating, bullet or fragment attack.
- air-dropped bombs are difficult to protect against the effects of Sympathetic Detonation where one bomb exploding in close proximity to another would also detonate the adjacent bomb or bombs.
- the present invention stems from our appreciation that there may be ways in which new or existing bombs may be filled from new, or in retrospect, in a way that produces reduced terminal effects and hence lower collateral damage.
- a bomb explosive filling comprising a charge of explosive and a charge of an inert material.
- the effect of incorporating inert material can be pre-determined through modelling and trials before bomb filling takes place.
- the present invention can provide increased safety from the effects of Sympathetic Detonation by the use of relatively insensitive explosive fillings. This can be further improved by arranging the charge of an inert material radially external to the charge of explosive material, thereby increasing the separation distance between live explosive fills in adjacent bomb by virtue of the inert filling surrounding them.
- the invention enables a variable of 'tuned' fill to be achieved.
- variable or "tuned" fill is achieved in two stages at bomb filling by:
- Modern explosive fills may consist of Polymer Bonded Explosives having an inert polymer base with the explosive mixed in.
- the mass, poring and setting properties of the inert polymer does not differ significantly from that of the mixed polymer/explosive and therefore provides an exceptionally stable inert filling for the first stage of the filling process.
- Other inert materials may be used given the need to prevent any adverse chemical or physical reaction with the bomb case or the live explosive fill.
- Certain lining materials may be used between the bomb case and the inert filing and between the inert filling and the live filling in order to provide specific protection from any possible interaction of the components.
- This invention can be used for filling new bombs and for re-filling old bombs that have had their previous explosive fill removed.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
Description
- This invention relates to a bomb and in particular to a novel explosive filling and method of filling a bomb.
- Most existing air-dropped bombs comprise a metallic case filled to capacity with an explosive filling and often comprising features to protect the filling from dynamic heating in carried flight and having the facility to interface with certain fuzing components, suspension equipment, guidance kits and tail units.
- These bombs display a variety of terminal effects including but not limited to:
- a. Blast
- b. Fragmentation
- c. Incendiary effects
- d. Thermobaric effects
- The method used to determine these terminal effects is that of bomb size and explosive capacity. The larger the bomb, the greater the terminal effect as a general rule.
- Existing military stockpiles may consist of air-dropped bombs that have excessive terminal effects and are therefore unsuitable for use against targets that require low-collateral damage effects. In addition, the cost of integrating new, possibly smaller bombs onto military aircraft is often prohibitive. In operations, bombs having high collateral effect can only be used against certain targets and therefore limits the operational effectiveness of the bomb and increases the whole life costs.
- Modern bombs display certain insensitivities to external stimuli such as fire, slow heating, bullet or fragment attack. In addition, air-dropped bombs are difficult to protect against the effects of Sympathetic Detonation where one bomb exploding in close proximity to another would also detonate the adjacent bomb or bombs.
- The present invention stems from our appreciation that there may be ways in which new or existing bombs may be filled from new, or in retrospect, in a way that produces reduced terminal effects and hence lower collateral damage.
- According to one aspect of our invention we provide a bomb explosive filling comprising a charge of explosive and a charge of an inert material.
- The effect of incorporating inert material can be pre-determined through modelling and trials before bomb filling takes place.
- By varying the ratio of an inert material to an explosive filling in the same bomb, it is possible to provide the end user with a selection of weapons effects whilst retaining typically the same bomb case and requiring no further military aircraft integration.
- Current legislation imposes a condition upon manufacturers of new bombs in so far as they are to be as insensitive to external stimuli as possible. This is often achieved by the use of specifically insensitive explosives and the use of certain mechanical means to vent the build up of internal pressure and thereby forestall the onset of an unwanted detonation.
- The present invention can provide increased safety from the effects of Sympathetic Detonation by the use of relatively insensitive explosive fillings. This can be further improved by arranging the charge of an inert material radially external to the charge of explosive material, thereby increasing the separation distance between live explosive fills in adjacent bomb by virtue of the inert filling surrounding them.
- The invention enables a variable of 'tuned' fill to be achieved.
- In a preferred method in accordance with the invention the variable or "tuned" fill is achieved in two stages at bomb filling by:
- a. the use of certain mandrels inserted into the empty bomb case during filling and around which an inert material having similar consistency, setting properties and mass is poured and:
- b. after the material has set hard, the mandrel is removed and the live explosive filling is added and the bomb sealed, conveniently in the normal way.
- Modern explosive fills may consist of Polymer Bonded Explosives having an inert polymer base with the explosive mixed in. The mass, poring and setting properties of the inert polymer does not differ significantly from that of the mixed polymer/explosive and therefore provides an exceptionally stable inert filling for the first stage of the filling process. Other inert materials may be used given the need to prevent any adverse chemical or physical reaction with the bomb case or the live explosive fill.
- Certain lining materials may be used between the bomb case and the inert filing and between the inert filling and the live filling in order to provide specific protection from any possible interaction of the components.
- This invention can be used for filling new bombs and for re-filling old bombs that have had their previous explosive fill removed.
- The accompanying drawing shows, by way of example only, schematic cut-away views of a bomb that has been filled in accordance with the invention.
Claims (8)
- A bomb explosive filling comprising a charge of explosive and a charge of an inert material.
- A bomb comprising an explosive filling comprising a charge of explosive and a charge of an inert material.
- The bomb of claim 2 wherein the charge of explosive comprises a relatively insensitive explosive.
- The bomb of claim 2 or claim 3 wherein the charge of an inert material can be arranged in the bomb radially external to the charge of explosive material, thereby increasing the separation distance in use of the bomb between live explosive fills in adjacent bomb by virtue of the inert filling surrounding them.
- The bomb of any one of claims 2 to 4 wherein the ratio of an inert material to the charge of explosive is selected to provide the end use with the desired weapons effects such that no modification of the integration in use with the standard bomb carrier.
- The bomb of any one of claims 2 to 6 wherein a lining material is used between the bomb case and the inert filling and/or between the inert filling and the live filling in order to provide specific protection from any possible interaction of the components.
- A method of filling a bomb comprising a step of partially filling the bomb with a charge of explosive and partially filling the bomb with a charge of an inert material.
- A method of bomb filling by:a. the use of certain mandrels inserted into the empty bomb case during filling and around which an inert material having similar consistency, setting properties and mass is poured and:b. after the inert material has set hard, the mandrel is removed and the live explosive filling is added and the bomb sealed, conveniently in the normal way.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0719982A GB0719982D0 (en) | 2007-10-12 | 2007-10-12 | Bombs |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2048470A2 true EP2048470A2 (en) | 2009-04-15 |
EP2048470A3 EP2048470A3 (en) | 2010-11-17 |
Family
ID=38788083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08253316A Withdrawn EP2048470A3 (en) | 2007-10-12 | 2008-10-10 | A bomb, bomb explosive filling and a method of filling a bomb |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2048470A3 (en) |
GB (2) | GB0719982D0 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013088090A1 (en) * | 2011-12-14 | 2013-06-20 | Eurenco | Munition, charge for such a munition, and method of manufacturing such a munition |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2040791A6 (en) * | 1968-05-17 | 1971-01-22 | Riecky Joseph | Casting profiled explosive charges |
US4152987A (en) * | 1977-02-18 | 1979-05-08 | The United States Of America As Represented By The Secretary Of The Navy | Impermeable polymer bomb liner for use with TNT containing explosives |
EP0431665A1 (en) * | 1989-12-06 | 1991-06-12 | Schweizerische Eidgenossenschaft vertreten durch die Eidg. Munitionsfabrik Thun der Gruppe für Rüstungsdienste | Method for quantity-producing ammunition parts, having a rotational symmetry, and ammunition parts manufactured by this method |
DE102005021758A1 (en) * | 2005-04-29 | 2007-01-04 | TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH | Moulded explosive production unit, comprises a gas porous filter composed of a microporous material |
WO2008118235A2 (en) * | 2006-12-20 | 2008-10-02 | Ruhlman James D | Reduced collateral damage bomb (rcdb) including fuse system with shaped charges and a system and method of making same |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1605340A (en) * | 1925-09-25 | 1926-11-02 | Charles H Gallagher | Automatic brake |
US3518942A (en) * | 1960-10-14 | 1970-07-07 | Us Navy | Antiaircraft projectile |
GB1605340A (en) * | 1976-01-21 | 1992-01-02 | Messerschmitt Boelkow Blohm | Bombs and projectiles |
DE2813179C3 (en) * | 1978-03-25 | 1980-09-18 | Dynamit Nobel Ag, 5210 Troisdorf | Process for the manufacture of pressed explosive charges |
DE3016861C2 (en) * | 1980-05-02 | 1984-07-12 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Warhead with a shell for fragmentation |
DE19722698C1 (en) * | 1997-05-30 | 1998-11-05 | Rheinmetall Ind Ag | Practice floor |
FR2819883B1 (en) * | 2001-01-19 | 2003-07-18 | Poudres & Explosifs Ste Nale | EXPLOSIVE AMMUNITION ELEMENT WITH FRAGMENTATION |
-
2007
- 2007-10-12 GB GB0719982A patent/GB0719982D0/en not_active Ceased
-
2008
- 2008-10-10 GB GB0818583A patent/GB2453659A/en not_active Withdrawn
- 2008-10-10 EP EP08253316A patent/EP2048470A3/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2040791A6 (en) * | 1968-05-17 | 1971-01-22 | Riecky Joseph | Casting profiled explosive charges |
US4152987A (en) * | 1977-02-18 | 1979-05-08 | The United States Of America As Represented By The Secretary Of The Navy | Impermeable polymer bomb liner for use with TNT containing explosives |
EP0431665A1 (en) * | 1989-12-06 | 1991-06-12 | Schweizerische Eidgenossenschaft vertreten durch die Eidg. Munitionsfabrik Thun der Gruppe für Rüstungsdienste | Method for quantity-producing ammunition parts, having a rotational symmetry, and ammunition parts manufactured by this method |
DE102005021758A1 (en) * | 2005-04-29 | 2007-01-04 | TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH | Moulded explosive production unit, comprises a gas porous filter composed of a microporous material |
WO2008118235A2 (en) * | 2006-12-20 | 2008-10-02 | Ruhlman James D | Reduced collateral damage bomb (rcdb) including fuse system with shaped charges and a system and method of making same |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013088090A1 (en) * | 2011-12-14 | 2013-06-20 | Eurenco | Munition, charge for such a munition, and method of manufacturing such a munition |
FR2984483A1 (en) * | 2011-12-14 | 2013-06-21 | Eurenco France | MUNITION, LOADING FOR SUCH AMMUNITION AND METHOD OF MANUFACTURING SUCH AMMUNITION |
US9476683B2 (en) | 2011-12-14 | 2016-10-25 | Eurenco | Munition, charge for such a munition, and method of manufacturing such a munition |
Also Published As
Publication number | Publication date |
---|---|
EP2048470A3 (en) | 2010-11-17 |
GB0818583D0 (en) | 2008-11-19 |
GB2453659A (en) | 2009-04-15 |
GB0719982D0 (en) | 2007-11-21 |
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