EP2828607A1 - Fin-stabilized full-calibre practice projectile - Google Patents
Fin-stabilized full-calibre practice projectileInfo
- Publication number
- EP2828607A1 EP2828607A1 EP13709379.5A EP13709379A EP2828607A1 EP 2828607 A1 EP2828607 A1 EP 2828607A1 EP 13709379 A EP13709379 A EP 13709379A EP 2828607 A1 EP2828607 A1 EP 2828607A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- head part
- projectile
- sealing ring
- tubular
- annular groove
- 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
- 239000004429 Calibre Substances 0.000 title abstract 2
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 239000003380 propellant Substances 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 17
- 239000007787 solid Substances 0.000 claims abstract description 6
- 238000010304 firing Methods 0.000 claims abstract description 4
- 239000000700 radioactive tracer Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- F42B14/02—Driving bands; Rotating bands
-
- 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
- F42B10/02—Stabilising arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B8/00—Practice or training ammunition
- F42B8/12—Projectiles or missiles
Definitions
- the invention relates to a ladder-stabilized full-caliber training projectile which can be fired from a weapon barrel and has a solid head part and a tubular tail body adjoining the head part on the rear side, the training projectile being provided with a sealing system on the circumference.
- Such a full-caliber training projectile is known from the document DE 10 2010 034 33 A1. It is a large caliber, for example, from a tank cannon with the caliber 120 mm shootable training projectile.
- full-caliber practice projectiles which usually include a head part with an adjoining projectile horn and a shaft with fin assembly adjoining the projectile casing
- the projectile projectile itself is designed as a tubular tail body, so that a separate shaft may be omitted with attached fin assembly.
- the resulting at the launch of the practice projectile projectile charge gases reach in this full-caliber training projectile in the interior of the tubular tail body and act to accelerate the practice projectile on the rear-side portion of the headboard, which limits the interior geunterkopf proof.
- a sealing system is arranged on the outside approximately in the rear third of the tubular region of the tail body. This consists essentially of a recessed into the outer surface of the tail body annular groove into which engages an existing plastic sealing ring.
- the invention has for its object to provide a full-caliber practice bullet of the type mentioned, the firing resistance is ensured in a cost effective manner.
- the invention is essentially based on the idea to dispense with a sealing system in the tubular portion of the tail body, so that the propellant gases formed at the launch of the training projectile also act on the outside of the side wall of the tubular tail body and thus acting on the outside of the tubular tail body pressure the counteracts the acting on the inside of the side wall of the training projectile internal pressure.
- a sealing system is arranged in the region of the massive head part of the training projectile, wherein a sealing ring engages in an annular groove in the rear-side region of the head part or in a region of the tail body overlapping the head part.
- the sealing system is a conical seal, wherein the annular groove of the sealing system has a greater width than the sealing ring, so that the sealing ring is axially displaceable towards the projectile tip when pressurized by the propellant gases.
- the tubular tail body spaced apart, knob-shaped guide elements, via which the tail body is supported on the gun barrel, wherein the knob-shaped guide elements one around form the guide body around arranged guide ring, and wherein the propellant gases can flow between adjacent guide elements.
- the sealing ring is preferably made of plastic.
- FIG. 1 shows the longitudinal section through an inventive, consisting of a Kopfteii and a tubular Leittechniks redesign full-caliber training projectile, wherein on the outside of the head part, a sealing system is arranged, which comprises an annular groove and a sealing ring;
- Fig. 2 is an enlarged view of a cross section through the training projectile shown in Fig. 1 along the designated there II-II section line.
- Fig. 1 is fired from a gun barrel, not shown leitwerkstabilieries full-caliber practice bullet. With the practice floor 1, a sleeve cover 2 is connected, which forms the compound of the training projectile 1 with a propellant charge, not shown, containing the propellant charge.
- the training projectile 1 comprises a solid head part 3 with a trailing-side arranged tracer body receptacle 4 and a tailpiece body 5 adjoining the head part 3 at the rear.
- the tubular tail body 5 is designed in such a way that the propellant gases produced during the launch of the training projectile 1 also act on the outside 6 of the side wall 7 of the tubular tail body 5.
- the tail body 5 is formed underkalibrig and is supported on spaced apart, knob-shaped guide elements 8 on the inner wall of the gun barrel, not shown.
- the nub-shaped guide elements 8 are arranged around the tail body 5 such that they form a guide ring 9 (FIG. 2), wherein the propellant charge gases can flow between adjacent guide elements 8.
- a sealing system 10 is arranged in the area of the massive head unit 3 of the training projectile 1.
- an existing plastic sealing ring 11 engages in a circumferential groove-shaped recess (annular groove) 12 in the rear-side region of the head part 3, wherein for the purpose of easy installation of the sealing system, the annular groove 12 is bounded on the rear side by the front end face of the tail body 5.
- the sealing system 10 is a bevel seal, wherein the width B of the annular groove 12 is greater than the width b of the sealing ring 11, so that the sealing ring 11 is axially displaceable to the projectile tip at a pressurization by the propellant gases within the annular groove 12. Due to the conical configuration of the groove bottom of the annular groove 12, the axial displacement of the sealing ring 11 also causes a radial widening of the sealing ring 11, so that there is a permanent Lid réelle between the training projectile 1 and the inner wall of the gun barrel.
- the sealing ring 11 can either be pressed or sprayed onto the head part 3 and then turned off to measure and / or drawn without twisting directly on the head part 3.
- the massive headboard does not necessarily have to be a solid body. Rather, it can also be a hollow body, if the wall thickness and / or the material (steel, etc.) of the head part are chosen such that the propellant charge gases cause no or no significant deformation of the head part when shooting in the barrel.
- annular groove of the sealing system does not necessarily have to be arranged on the tail body itself, but it can also be provided that, in a training projectile in which the tail body engages over the head part on the front side (see also FIG. 1), the annular groove in this wall region of the Leitwerks stressess is arranged. LIST OF REFERENCE NUMBERS
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Toys (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210005743 DE102012005743A1 (en) | 2012-03-23 | 2012-03-23 | Tail stabilized full caliber training projectile |
PCT/EP2013/054430 WO2013139593A1 (en) | 2012-03-23 | 2013-03-05 | Fin-stabilized full-calibre practice projectile |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2828607A1 true EP2828607A1 (en) | 2015-01-28 |
EP2828607B1 EP2828607B1 (en) | 2016-05-18 |
Family
ID=47884288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13709379.5A Active EP2828607B1 (en) | 2012-03-23 | 2013-03-05 | Fin-stabilized full-calibre practice projectile |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2828607B1 (en) |
DE (1) | DE102012005743A1 (en) |
WO (1) | WO2013139593A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019126585A1 (en) * | 2019-10-02 | 2021-04-08 | Rwm Schweiz Ag | Shortened range bullet |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE626652A (en) * | 1961-06-28 | |||
GB1141534A (en) * | 1965-06-14 | 1969-01-29 | Director General Of Foersvaret | Projectile with a stabilizing element at its rear end |
DE102010003433B4 (en) | 2010-03-30 | 2011-11-17 | Institut für Sicherheitstechnik/Schiffssicherhheit e.V. | Methods and devices for rescuing persons in the water |
DE102010034333B4 (en) | 2010-07-06 | 2014-12-11 | Rheinmetall Waffe Munition Gmbh | Full-caliber training ammunition |
-
2012
- 2012-03-23 DE DE201210005743 patent/DE102012005743A1/en not_active Withdrawn
-
2013
- 2013-03-05 EP EP13709379.5A patent/EP2828607B1/en active Active
- 2013-03-05 WO PCT/EP2013/054430 patent/WO2013139593A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2013139593A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2828607B1 (en) | 2016-05-18 |
DE102012005743A1 (en) | 2013-09-26 |
WO2013139593A1 (en) | 2013-09-26 |
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