FR3047306B1 - CYLINDRICAL ENVELOPE FOR USEFUL LOAD - Google Patents

CYLINDRICAL ENVELOPE FOR USEFUL LOAD Download PDF

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Publication number
FR3047306B1
FR3047306B1 FR1600147A FR1600147A FR3047306B1 FR 3047306 B1 FR3047306 B1 FR 3047306B1 FR 1600147 A FR1600147 A FR 1600147A FR 1600147 A FR1600147 A FR 1600147A FR 3047306 B1 FR3047306 B1 FR 3047306B1
Authority
FR
France
Prior art keywords
envelope
fins
cylindrical envelope
useful load
casing
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.)
Active
Application number
FR1600147A
Other languages
French (fr)
Other versions
FR3047306A1 (en
Inventor
Christian Trouillot
Frederic Carreau
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.)
Nexter Munitions SA
Original Assignee
Nexter Munitions SA
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 Nexter Munitions SA filed Critical Nexter Munitions SA
Priority to FR1600147A priority Critical patent/FR3047306B1/en
Publication of FR3047306A1 publication Critical patent/FR3047306A1/en
Application granted granted Critical
Publication of FR3047306B1 publication Critical patent/FR3047306B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F42B10/14—Stabilising arrangements using fins spread or deployed after launch, e.g. after leaving the barrel
    • F42B10/16—Wrap-around fins
    • 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
    • F42B10/50—Brake flaps, e.g. inflatable
    • 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

Abstract

L'invention a pour objet une enveloppe cylindrique (7) pour une charge utile destinée à être éjectée à partir d'un projectile gyrostabilisé, enveloppe comprenant un moyen de freinage de sa vitesse sur trajectoire. Cette enveloppe est caractérisée en ce que le moyen de freinage de sa vitesse sur trajectoire comprend au moins trois paires (11) d'ailettes (8) déployables qui sont régulièrement réparties angulairement sur une paroi externe de l'enveloppe (7) au niveau d'une extrémité arrière (7a) de l'enveloppe, les ailettes étant positionnées par rapport à l'enveloppe de telle sorte que leur plan forme, en position déployée, un angle avec l'axe (12) de l'enveloppe, chaque paire (11) d'ailettes comprenant deux ailettes (8) qui sont symétriques l'une de l'autre par rapport à un plan (P) passant par l'axe de l'enveloppe.The subject of the invention is a cylindrical envelope (7) for a payload intended to be ejected from a gyro-stabilized projectile, envelope comprising means for braking its trajectory speed. This casing is characterized in that the braking means of its trajectory speed comprises at least three pairs (11) of fins (8) deployable which are regularly distributed angularly on an outer wall of the casing (7) at the level of a rear end (7a) of the envelope, the fins being positioned relative to the envelope so that their plane forms, in the deployed position, an angle with the axis (12) of the envelope, each pair (11) fins comprising two fins (8) which are symmetrical to each other with respect to a plane (P) passing through the axis of the envelope.

FR1600147A 2016-01-28 2016-01-28 CYLINDRICAL ENVELOPE FOR USEFUL LOAD Active FR3047306B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1600147A FR3047306B1 (en) 2016-01-28 2016-01-28 CYLINDRICAL ENVELOPE FOR USEFUL LOAD

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1600147 2016-01-28
FR1600147A FR3047306B1 (en) 2016-01-28 2016-01-28 CYLINDRICAL ENVELOPE FOR USEFUL LOAD

Publications (2)

Publication Number Publication Date
FR3047306A1 FR3047306A1 (en) 2017-08-04
FR3047306B1 true FR3047306B1 (en) 2019-04-05

Family

ID=55953187

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1600147A Active FR3047306B1 (en) 2016-01-28 2016-01-28 CYLINDRICAL ENVELOPE FOR USEFUL LOAD

Country Status (1)

Country Link
FR (1) FR3047306B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3614563A1 (en) * 1986-04-29 1987-11-05 Diehl Gmbh & Co Braking device for an air-launched body
DE3911115A1 (en) * 1989-04-06 1990-10-18 Diehl Gmbh & Co Anti-tank mine
US7004424B1 (en) * 2004-04-05 2006-02-28 The United States Of America, As Represented By The Secretary Of The Army Projectile flight altering apparatus
DE102006019758B4 (en) * 2006-04-28 2015-10-01 Deutsch Französisches Forschungsinstitut Saint Louis education institution
FR3011919B1 (en) * 2013-10-15 2017-05-19 Nexter Munitions BRAKING DEVICE FOR ROTATING AN ENVELOPE OF A USEFUL LOAD, AND GYROSTABILIZED PROJECTILE EQUIPPED WITH SUCH A DEVICE

Also Published As

Publication number Publication date
FR3047306A1 (en) 2017-08-04

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