EP0385129B1 - Projectile à trajectoire courte comportant des moyens pour réduire la portée - Google Patents
Projectile à trajectoire courte comportant des moyens pour réduire la portée Download PDFInfo
- Publication number
- EP0385129B1 EP0385129B1 EP90102159A EP90102159A EP0385129B1 EP 0385129 B1 EP0385129 B1 EP 0385129B1 EP 90102159 A EP90102159 A EP 90102159A EP 90102159 A EP90102159 A EP 90102159A EP 0385129 B1 EP0385129 B1 EP 0385129B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- projectile
- trajectory
- short
- range
- reducing
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
- F42B10/48—Range-reducing, destabilising or braking arrangements, e.g. impact-braking arrangements; Fall-retarding means, e.g. balloons, rockets for braking or fall-retarding
Definitions
- the invention relates to a short-range projectile with means for shortening the trajectory of the projectile according to the preamble of patent claim 1.
- part of the projectile tip consists of a material which melts due to the air resistance (see CH Patent No. 532 240 and EP Patent No. 0 036 232).
- a destabilization body is attached to the floor of the projectile, which projects into the flow-free space behind the projectile and which initiates the destabilization as soon as it emerges from the diminishing one , flow-free space protrudes (see Swiss Patent No. 667 723).
- DE-A-3 422 659 describes a projectile with a steel jacket which has a cylindrical outer contour in its rear region and tapers conically towards the rear. On this conically tapered part of the steel jacket there is an annular body which consists of a material which wears out under the action of the air flowing past the cylindrical outer contour. This reduces the aerodynamic drag in flight and increases the flight path.
- LU-A-53 302 describes a braking device on a bomb, which essentially consists in that the surface of the bomb is provided over a certain length at its front end with grooves which are only exposed after a certain flight duration.
- the object which is to be achieved with the present invention is to create a short-range projectile which is particularly simple to manufacture and which enables a predetermined shortening of the trajectory.
- the short-range floor 10 has a projectile body 11 which is provided with an axial blind bore 12 at its front end. A projectile tip 13 is inserted into this blind bore 12 and is held in the blind bore 12 by means of a thread 14.
- the projectile body 11 has a second blind bore 15 at its rear end, into which, for example, a light set can be inserted.
- the projectile body 11 is also provided with a swirl band 16.
- This short-track floor 10 is essentially exactly the same as a normal projectile is formed and differs only by means of shortening the trajectory of the projectile while the projectile is already in its trajectory.
- the deviation of the trajectory from the trajectory of a normal projectile should be less than 1% during the first 200 meters.
- the trajectory of the short-range storey should not match the trajectory of a normal storey for more than 4000 meters.
- the shortening of the trajectory is shown in Fig.2.
- Two corresponding trajectories of the projectile are shown for each elevation a of the weapon. These two trajectories coincide with each other on route A -B.
- C is the normal trajectory of a projectile and D is the shortened trajectory that results from the change in the surface of the projectile due to the air friction on the trajectory from A - B.
- the length of this distance A - B depends on the elevation a of the weapon.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Table Devices Or Equipment (AREA)
- Details Of Garments (AREA)
- Residential Or Office Buildings (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Claims (2)
- Projectile de courte portée comportant des moyens pour raccourcir la portée du projectile (10) pendant que le projectile (10) se trouve sur sa portée, la surface du projectile étant constitué au moins, par endroits, d'une matière qui fond sous l'effet du frottement de l'air pendant le vol, projectile caractérisé en ce que sa surface comporte des rugosités ou des nervures recouvertes et lissées par la matière susceptible de fondre.
- Projectile de courte portée selon la revendication 1, caractérisé en ce que la matière susceptible de fondre est un polycarbonate.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH79689 | 1989-03-03 | ||
CH796/89 | 1989-03-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0385129A1 EP0385129A1 (fr) | 1990-09-05 |
EP0385129B1 true EP0385129B1 (fr) | 1993-05-05 |
Family
ID=4195388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90102159A Expired - Lifetime EP0385129B1 (fr) | 1989-03-03 | 1990-02-03 | Projectile à trajectoire courte comportant des moyens pour réduire la portée |
Country Status (8)
Country | Link |
---|---|
US (1) | US5001986A (fr) |
EP (1) | EP0385129B1 (fr) |
JP (1) | JPH02242099A (fr) |
CA (1) | CA2008033A1 (fr) |
DE (1) | DE59001332D1 (fr) |
IL (1) | IL93209A0 (fr) |
NO (1) | NO169308C (fr) |
ZA (1) | ZA90940B (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5259319A (en) * | 1992-03-20 | 1993-11-09 | Richard Dravecky | Reusable training ammunition |
US5501155A (en) * | 1994-10-24 | 1996-03-26 | The United States Of America As Represented By The Secretary Of The Army | Hollow training round |
DE10338185A1 (de) * | 2003-08-20 | 2005-03-24 | Rheinmetall Waffe Munition Gmbh | Geschoßkopf für eine Übungspatrone |
KR101043308B1 (ko) * | 2009-01-30 | 2011-06-22 | 국방과학연구소 | 시험용 포탄의 사거리 감소방법, 사거리 감소신관 및 이를 구비하는 시험용 포탄 |
US9157713B1 (en) | 2013-03-15 | 2015-10-13 | Vista Outdoor Operations Llc | Limited range rifle projectile |
US9212876B1 (en) * | 2013-08-30 | 2015-12-15 | The United States Of America As Represented By The Secretary Of The Army | Large caliber frangible projectile |
WO2015183371A2 (fr) | 2014-03-10 | 2015-12-03 | Nostromo, Llc | Cartouche de munition à instabilité induite dans une plage prédéfinie |
US11156442B1 (en) * | 2018-10-11 | 2021-10-26 | U.S. Government As Represented By The Secretary Of The Army | Dynamic instability reduced range round |
EP3872438B1 (fr) * | 2020-02-27 | 2023-06-07 | Rabuffo SA | Cartouche de munition |
SE545006C2 (sv) * | 2020-05-22 | 2023-02-28 | Bae Systems Bofors Ab | Projektil |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1578227B1 (de) * | 1966-07-26 | 1971-04-01 | Fridolin Schroth | Abwurfbombe mit Bremsflaeche |
CH532240A (de) * | 1970-12-08 | 1972-12-31 | Oerlikon Buehrle Ag | Kurzbahngeschoss |
US3732826A (en) * | 1971-04-09 | 1973-05-15 | E Johnson | Cartridge |
US3952662A (en) * | 1974-05-29 | 1976-04-27 | Greenlees William D | Non-lethal projectile for riot control |
US4140061A (en) * | 1977-06-06 | 1979-02-20 | The United States Of America As Represented By The Secretary Of The Army | Short-range discarding-sabot training practice round and self-destruct subprojectile therefor |
DE2756420C2 (de) * | 1977-12-17 | 1985-02-07 | Rheinmetall GmbH, 4000 Düsseldorf | Geschoß mit selbsttätiger Zerlegerwirkung |
BE882272A (fr) * | 1980-03-18 | 1980-09-18 | Herstal Sa | Munition d'entrainement |
DE3045129C2 (de) * | 1980-11-29 | 1984-08-23 | Diehl GmbH & Co, 8500 Nürnberg | Übungsgeschoß |
US4413566A (en) * | 1981-07-31 | 1983-11-08 | The United States Of America As Represented By The Secretary Of The Army | Non-ablative projectile heat sensitive nose |
EP0090888A1 (fr) * | 1982-03-05 | 1983-10-12 | The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and | Projectile d'entraînement à sabot séparable |
CH667723A5 (en) * | 1984-03-23 | 1988-10-31 | Oerlikon Buehrle Ag | Short range anti-tank practice shell - has mushroom shaped de-stabilising body extended from rear cavity when speed falls, retained by line |
DE3422659A1 (de) * | 1984-06-19 | 1985-12-19 | Diehl GmbH & Co, 8500 Nürnberg | Geschoss mit zylindrischer heckkontur |
-
1989
- 1989-12-04 NO NO894830A patent/NO169308C/no unknown
- 1989-12-26 JP JP1335221A patent/JPH02242099A/ja active Pending
-
1990
- 1990-01-11 US US07/463,355 patent/US5001986A/en not_active Expired - Fee Related
- 1990-01-18 CA CA002008033A patent/CA2008033A1/fr not_active Abandoned
- 1990-01-29 IL IL93209A patent/IL93209A0/xx unknown
- 1990-02-03 EP EP90102159A patent/EP0385129B1/fr not_active Expired - Lifetime
- 1990-02-03 DE DE9090102159T patent/DE59001332D1/de not_active Expired - Fee Related
- 1990-02-08 ZA ZA90940A patent/ZA90940B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
NO894830L (no) | 1990-09-04 |
NO894830D0 (no) | 1989-12-04 |
US5001986A (en) | 1991-03-26 |
IL93209A0 (en) | 1990-11-05 |
CA2008033A1 (fr) | 1990-09-03 |
DE59001332D1 (de) | 1993-06-09 |
NO169308C (no) | 1992-06-03 |
EP0385129A1 (fr) | 1990-09-05 |
NO169308B (no) | 1992-02-24 |
JPH02242099A (ja) | 1990-09-26 |
ZA90940B (en) | 1990-11-28 |
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