EP0767355B1 - Unterkalibriges Flechette-Übungsgeschoss vom kinetischen Energietyp - Google Patents

Unterkalibriges Flechette-Übungsgeschoss vom kinetischen Energietyp Download PDF

Info

Publication number
EP0767355B1
EP0767355B1 EP96402050A EP96402050A EP0767355B1 EP 0767355 B1 EP0767355 B1 EP 0767355B1 EP 96402050 A EP96402050 A EP 96402050A EP 96402050 A EP96402050 A EP 96402050A EP 0767355 B1 EP0767355 B1 EP 0767355B1
Authority
EP
European Patent Office
Prior art keywords
projectile
penetrator
practice
tail section
thread
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
Application number
EP96402050A
Other languages
English (en)
French (fr)
Other versions
EP0767355A1 (de
Inventor
Jean-Pierre Bonamy
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.)
Direction General de lArmement DGA
Gouvernement de la Republique Francaise
Original Assignee
Delegation Generale pour lArmement
Gouvernement de la Republique Francaise
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 Delegation Generale pour lArmement, Gouvernement de la Republique Francaise filed Critical Delegation Generale pour lArmement
Publication of EP0767355A1 publication Critical patent/EP0767355A1/de
Application granted granted Critical
Publication of EP0767355B1 publication Critical patent/EP0767355B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F42B10/02—Stabilising arrangements
    • F42B10/04—Stabilising arrangements using fixed fins
    • F42B10/06—Tail fins
    • 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
    • F42B8/14—Projectiles or missiles disintegrating in flight or upon impact

Definitions

  • the technical sector of the present invention is that of cannon projectiles, and more particularly of sub-calibrated kinetic energy practice projectiles of the arrow type.
  • the corresponding real projectiles comprise a stabilizing stabilizer with low aerodynamic drag allowing a very large range of approximately 80 to 100 kilometers.
  • this range requires having a safety gauge incompatible with the dimensions of European shooting ranges.
  • Exercise projectiles are known, which are lighter than war projectiles, animated at a very high initial speed sometimes greater than the nominal speed of the projectiles they simulate, and provided with a tail unit whose drag is much greater than that of real projectiles.
  • Exercise projectiles are also known which consist of at least two parts separated by rupture locations, separable from each other by pyrotechnic delay disintegrators triggered when the projectile is fired. Projectiles of this type are described in patents FR 2,496,867 and FR 2,490,803, for example.
  • This projectile has a drawback due to the lack of fidelity of the decay distances, depending on the climatic conditions at the time of the firing.
  • the aim of the present invention is to remedy the drawbacks mentioned above, by proposing an under-calibrated kinetic energy exercise projectile of the arrow type perfectly simulating a real projectile, having the same mass, the same aerodynamic coefficient and a identical useful trajectory over approximately 3000 meters, corresponding to the useful combat distances generally encountered.
  • the present invention also aims to respect the limits imposed by the safety gauges of western ranges, by abruptly modifying the aerodynamic characteristics of the device to interrupt its flight after a predetermined duration.
  • Another object of the invention is to propose a very reliable and simple to carry out exercise projectile, and not being more expensive for its manufacture than an operational projectile.
  • the subject of the invention is a sub-calibrated kinetic energy exercise projectile of the arrow type, consisting of an penetrator and a stabilizer separable from one another during the flight of the projectile, characterized in that the penetrator and the tail unit comprise mechanical means for separating them after a predetermined flight time, by relative rotation of the tail unit relative to the penetrator under the effect of the aerodynamic forces exerted on the tail unit.
  • the mechanical means consist of an element, integral with the indenter, screwed onto a threaded part of the tail.
  • the element, integral and coaxial with the indenter may consist of an external thread with very fine pitch.
  • the exercise projectile comprises a cylinder placed in the rear extension of the thread, to ensure the coaxial guide of the tail before its separation from the indenter.
  • the length of the thread and that of the thread pitch are determined as a function of the predetermined flight time of the projectile.
  • This exercise projectile has the advantage of being very stable up to the usual combat distances, by reproducing identically the trajectory of the war munitions that it simulates.
  • Another advantage lies in the simplicity of operation of the mechanical means for separating the tail and the penetrator, ensuring very good reliability of the projectile while respecting the limits imposed by the safety templates of the ranges.
  • the invention also makes it possible to use most of the elements of the war projectile to produce this exercise projectile, thereby reducing production costs.
  • FIG. 1 represents a schematic view in longitudinal section of an exercise projectile according to the invention.
  • an arrow calibrated kinetic energy exercise projectile of the arrow type mainly consisting of a penetrator 1, a tail unit 2 located at the rear of the projectile, an intermediate piece 3 ensuring the connection between the indenter 1 and the tail 2, and a separable shoe 4.
  • the indenter 1 and the intermediate part 3 are made integral and coaxial by any known means, for example a thread 5 which cannot be removed during the ballistic lifetime of the projectile.
  • the intermediate part 3 and the tail unit 2 are made coaxial by means of an adjusted cylinder 7 and secured by means of a connection by very fine pitch thread 6.
  • the length of the thread 6 and that of the adjusted cylinder 7 are substantially equivalent.
  • the length and the very fine pitch of the thread 6 are determined as a function of the flight time of the projectile of approximately two seconds after the exit from the barrel.
  • the operation of the exercise projectile is as follows.
  • the cylindrical adjustment 7 guides the tail unit until its final separation from the intermediate part 3.
  • the threaded part 6 has a very fine pitch thread of the order of 0.25 to 1 mm over a length about 50 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)

Claims (5)

  1. Unterkalibriges Übungsgeschoß mit kinetischer Energie vom Typ Pfeil, bestehend aus einem Penetrator (1) und einem Leitwerk (2), während des Fluges des Geschosses voneinander trennbar, dadurch gekennzeichnet, daß der Penetrator und das Leitwerk mit mechanischen Mitteln (6, 7) ausgestattet sind, so daß sich beide nach einer vorbestimmten Flugdauer durch relative Drehung des Leitwerks im Verhältnis zum Penetrator unter der Wirkung der auf das Leitwerk ausgeübten aerodynamischen Kräfte voneinander trennen.
  2. Übungsgeschoß gemäß Patentanspruch 1, dadurch gekennzeichnet, daß diese mechanischen Mittel aus einem mit dem Penetrator (1) solidarisch verbundenen und auf den mit einem Gewinde versehenen Teil (6) des Leitwerks (2) geschraubten Element (3) bestehen.
  3. Übungsgeschoß gemäß Patentanspruch 2, dadurch gekennzeichnet, daß das koaxiale und mit dem Penetrator (2) solidarisch verbundene Element (3) aus einem äußeren Gewinde (6) mit sehr feinem Gewindegang besteht.
  4. Übungsgeschoß gemäß Patentanspruch 3, dadurch gekennzeichnet, daß es einen in der hinteren Verlängerung des Gewindes (6) angebrachten Zylinder (7) enthält, um die koaxiale Führung des Leitwerks vor seiner Trennung vom Penetrator zu gewährleisten.
  5. Übungsgeschoß gemäß Patentanspruch 4, dadurch gekennzeichnet, daß die Länge des Gewindes (6) und die Länge des Gewindegangs ensprechend der vorbestimmten Flugdauer des Geschosses bestimmt werden.
EP96402050A 1995-10-05 1996-09-26 Unterkalibriges Flechette-Übungsgeschoss vom kinetischen Energietyp Expired - Lifetime EP0767355B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9511699 1995-10-05
FR9511699A FR2739683B1 (fr) 1995-10-05 1995-10-05 Projectile d'exercice sous-calibre a energie cinetique du type fleche

Publications (2)

Publication Number Publication Date
EP0767355A1 EP0767355A1 (de) 1997-04-09
EP0767355B1 true EP0767355B1 (de) 2000-04-05

Family

ID=9483258

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96402050A Expired - Lifetime EP0767355B1 (de) 1995-10-05 1996-09-26 Unterkalibriges Flechette-Übungsgeschoss vom kinetischen Energietyp

Country Status (4)

Country Link
US (1) US5798479A (de)
EP (1) EP0767355B1 (de)
DE (1) DE69607554T2 (de)
FR (1) FR2739683B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6672537B1 (en) * 2002-08-14 2004-01-06 The United States Of America As Represented By The Secretary Of The Navy One-piece wrap around fin
US7800032B1 (en) * 2006-11-30 2010-09-21 Raytheon Company Detachable aerodynamic missile stabilizing system
JP5550398B2 (ja) * 2010-03-18 2014-07-16 三菱重工業株式会社 舵面故障・損傷検出装置
DE102019117496B4 (de) * 2019-06-28 2025-07-31 Rheinmetall Waffe Munition Gmbh Geschoss
FR3115358B1 (fr) * 2020-10-19 2023-11-24 Nexter Munitions Projectile perforant et explosif dote d'un empennage de stabilisation

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
BE885293A (fr) * 1980-09-19 1981-03-15 Prb Sa Projectile d'exercice
DE3048206C2 (de) * 1980-12-20 1985-06-13 Diehl GmbH & Co, 8500 Nürnberg Übungsgeschoß
DE3122320A1 (de) * 1981-06-05 1983-01-27 Dynamit Nobel Ag, 5210 Troisdorf Drallstabilisierter uebungsflugkoerper
DE3146645A1 (de) * 1981-11-25 1983-06-01 Rheinmetall GmbH, 4000 Düsseldorf Vorrichtung zum kontrollierten begrenzen der letalen reichweite eines ein ziel verfehlenden fluggeschosses mit einem stabilisierenden element und einem leuchtspursatz
US4535698A (en) * 1983-11-04 1985-08-20 The United States Of America As Represented By The Secretary Of The Army Pyrotechnic nose cap for practice munitions
FR2599828B1 (fr) * 1986-06-05 1990-08-24 Sauvestre Jean Claude Munition de petit ou moyen calibre a efficacite amelioree et portee limitee, en particulier pour la chasse
US4682546A (en) * 1986-10-02 1987-07-28 Chovich Milija M Projectile
DE3842728A1 (de) * 1988-12-19 1990-06-21 Diehl Gmbh & Co Uebungsgeschoss
DE3927799A1 (de) * 1989-08-23 1991-02-28 Rheinmetall Gmbh Uebungsgeschoss
DE4028410C2 (de) * 1990-09-07 1995-09-07 Rheinmetall Ind Gmbh Verfahren zum Umarbeiten unterkalibriger Wuchtgeschosse
US5070791A (en) * 1990-11-30 1991-12-10 The United States Of America As Represented By The Secretary Of The Army Projectile tail cone

Also Published As

Publication number Publication date
FR2739683A1 (fr) 1997-04-11
DE69607554T2 (de) 2000-09-07
EP0767355A1 (de) 1997-04-09
FR2739683B1 (fr) 1997-12-05
DE69607554D1 (de) 2000-05-11
US5798479A (en) 1998-08-25

Similar Documents

Publication Publication Date Title
CA2558031C (fr) Balle de chasse a bague d'expansion
EP0723131B1 (de) Mündungsbremse für ein mittel- oder grosskalibriges Geschütz
CH634142A5 (fr) Mecanisme de lancement d'un projectile sous-calibre.
FR2599828A1 (fr) Munition de petit ou moyen calibre a efficacite amelioree et portee limitee, en particulier pour la chasse
EP0737298B1 (de) Flintenlaufgeschoss mit teleskopartigem pfeil mit einem an einem launcher teilnehmenden subgeschoss
FR2567257A1 (fr) Dispositif de freinage d'un sabot a l'interieur d'un tube de lancement, en particulier pour armes sans recul et armes a dispersion
EP1664663B1 (de) Jagdkugel mit verringertem aerodynamischem widerstand
EP0767355B1 (de) Unterkalibriges Flechette-Übungsgeschoss vom kinetischen Energietyp
FR2519753A1 (fr) Bombe de penetration a corps etage
EP1552241A2 (de) Geschoss für feuerwaffe
EP0048644A1 (de) Geschoss mit Leitflossen in Gestalt eines Pfeiles
EP0728293B1 (de) Flintenlaufgeschoss mit doppeleindringung und reduzierter schussweite
CA2146443C (fr) Sabot a separation controlee des elements pour projectiles sous-calibres
EP3994421B1 (de) Teleskopmunition mit einem projektil mit einem stapel gerillter scheiben
EP0036232B1 (de) Übungsgeschoss
FR2512541A1 (fr) Projectile d'exercice pour armes a tir tendu
EP0752571B1 (de) Kurzbahngeschoss
EP0258125B1 (de) Unterkalibriges Pfeilgeschoss für Jagdpatrone mit verstärkter Endwirkungskraft in weichen Zielen
EP0294263B1 (de) Verfahren zum Erhöhen der Empfindlichkeit eines mit einem auf Aufschlagzünder ausgerüsteten Projektils
CH623407A5 (en) Tubular projectile capable of being fired at a supersonic speed
CA2176029C (fr) Balle de chasse a double penetration et a portee reduite
EP0990869B1 (de) Sabot für ein Unterkalibergeschoss
FR2833341A1 (fr) Systeme d'arme d'attaque de cibles sous-marines
FR2978821A1 (fr) Obus d'artillerie a portee accrue
FR2527762A1 (fr) Engin pour propulser a tres grande vitesse un ou plusieurs projectiles et moyens pour la mise en oeuvre de cet engin

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19961009

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19990615

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20000405

REF Corresponds to:

Ref document number: 69607554

Country of ref document: DE

Date of ref document: 20000511

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20011130

Year of fee payment: 6

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20020913

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030926

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20030926