GB2228987A - Tail fin unit for a projectile - Google Patents

Tail fin unit for a projectile

Info

Publication number
GB2228987A
GB2228987A GB8920302A GB8920302A GB2228987A GB 2228987 A GB2228987 A GB 2228987A GB 8920302 A GB8920302 A GB 8920302A GB 8920302 A GB8920302 A GB 8920302A GB 2228987 A GB2228987 A GB 2228987A
Authority
GB
United Kingdom
Prior art keywords
projectile
fin unit
unit
fins
moulded
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
Application number
GB8920302A
Other versions
GB2228987B (en
GB8920302D0 (en
Inventor
Stephen George Gladwell Smith
David Howard Walker
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Publication of GB8920302D0 publication Critical patent/GB8920302D0/en
Publication of GB2228987A publication Critical patent/GB2228987A/en
Application granted granted Critical
Publication of GB2228987B publication Critical patent/GB2228987B/en
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

Abstract

A tail fin unit (10) moulded from a plastics material which ablates when subjected to both propellant flash temperatures and in-flight aerodynamic heating, consists of a fin unit body member (12) which is coaxially attachable to the rear end of the projectile, and which is provided with a plurality of radially protrusive fins (16) each disposed as a helix of constant pitch around the moulding axis of the unit. Ablation of the fins (16) may not occur evenly, but because they are of constant pitch, any erosion of their leading edges (20) will occur without detriment to the spin rate of the projectile in flight. A preferred unit moulded from polyester or epoxy resin filled with Kevlar aramid fibres is capable of resisting gun chamber loads of 4000kg cm<-2>.
GB8920302A 1987-03-17 1988-03-09 Tail fin unit for a projectile Expired - Lifetime GB2228987B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878706250A GB8706250D0 (en) 1987-03-17 1987-03-17 Tail fin unit for projectile
PCT/GB1988/000179 WO1988007169A1 (en) 1987-03-17 1988-03-09 Tail fin unit for a projectile

Publications (3)

Publication Number Publication Date
GB8920302D0 GB8920302D0 (en) 1990-02-21
GB2228987A true GB2228987A (en) 1990-09-12
GB2228987B GB2228987B (en) 1991-01-23

Family

ID=10614054

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878706250A Pending GB8706250D0 (en) 1987-03-17 1987-03-17 Tail fin unit for projectile
GB8920302A Expired - Lifetime GB2228987B (en) 1987-03-17 1988-03-09 Tail fin unit for a projectile

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB878706250A Pending GB8706250D0 (en) 1987-03-17 1987-03-17 Tail fin unit for projectile

Country Status (8)

Country Link
EP (1) EP0354210B1 (en)
AU (1) AU600810B2 (en)
BR (1) BR8807422A (en)
CA (1) CA1323246C (en)
DE (1) DE3886209T2 (en)
GB (2) GB8706250D0 (en)
IL (1) IL85710A0 (en)
WO (1) WO1988007169A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3927917A1 (en) * 1989-08-24 1991-02-28 Rheinmetall Gmbh WING STABILIZED SHELL
DE4007197C2 (en) * 1990-03-07 1997-07-03 Deutsch Franz Forsch Inst Tail unit for a high-speed bullet
KR920010249A (en) * 1990-11-09 1992-06-26 앨리언트 테크시스템스 인코오포레이티드 Ammunition fins with melt and warp resistance
US5158509A (en) * 1990-12-14 1992-10-27 The United States Of America As Represented By The United States Department Of Energy Composite stabilizer unit
GB2268575A (en) * 1992-07-09 1994-01-12 Secr Defence Tail fin unit
GB0004347D0 (en) * 2000-02-25 2000-04-12 Victrex Mfg Ltd Lightweight ablative materials
US9644929B1 (en) 2013-12-03 2017-05-09 Michael S. Bradbury Pilum bullet and cartridge
CN111707145B (en) * 2020-06-10 2022-09-09 宁波曙翔新材料股份有限公司 Loading, ablation and heat-proof integrated composite material missile wing and rudder for hypersonic missile and preparation method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB508201A (en) * 1937-01-04 1939-06-28 Sageb Sa Improvements in bladed projectiles
FR1061958A (en) * 1952-05-19 1954-04-16 Le Moulage De Prec Tailoring improvements
FR1077083A (en) * 1953-03-20 1954-11-04 Soc Tech De Rech Ind Tail for projectiles
FR1288365A (en) * 1961-04-07 1962-03-24 Oregon Etablissements Fuer Pat New fletched projectile
FR1307270A (en) * 1961-06-08 1962-10-26 Le Ministre Des Armees Terre D Tailplane for projectile and method of assembly
FR2020467A5 (en) * 1969-01-29 1970-07-10 Losfeld Andre Projectile adaptable as hand grenade or - self-propelled mortar bomb
EP0174082A1 (en) * 1984-07-23 1986-03-12 Judd Engineering Limited Projectile stabilising fin unit
EP0249525A1 (en) * 1986-06-05 1987-12-16 ETAT-FRANCAIS représenté par le DELEGUE GENERAL POUR L'ARMEMENT (DPAG) Stabilization fins for an arrow-type penetrator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3517125A1 (en) * 1985-05-11 1986-11-13 Rheinmetall GmbH, 4000 Düsseldorf SUB-CALIBRARY FLOOR

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB508201A (en) * 1937-01-04 1939-06-28 Sageb Sa Improvements in bladed projectiles
FR1061958A (en) * 1952-05-19 1954-04-16 Le Moulage De Prec Tailoring improvements
FR1077083A (en) * 1953-03-20 1954-11-04 Soc Tech De Rech Ind Tail for projectiles
FR1288365A (en) * 1961-04-07 1962-03-24 Oregon Etablissements Fuer Pat New fletched projectile
FR1307270A (en) * 1961-06-08 1962-10-26 Le Ministre Des Armees Terre D Tailplane for projectile and method of assembly
FR2020467A5 (en) * 1969-01-29 1970-07-10 Losfeld Andre Projectile adaptable as hand grenade or - self-propelled mortar bomb
EP0174082A1 (en) * 1984-07-23 1986-03-12 Judd Engineering Limited Projectile stabilising fin unit
EP0249525A1 (en) * 1986-06-05 1987-12-16 ETAT-FRANCAIS représenté par le DELEGUE GENERAL POUR L'ARMEMENT (DPAG) Stabilization fins for an arrow-type penetrator

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Naval Technical Disclosure Bulletin, Vol. 9,No. 2, Dec 1983.Navy Tech. Cat. number 0164, Navy Ca *
No.66779. *
WO8606828 *

Also Published As

Publication number Publication date
DE3886209T2 (en) 1994-06-09
CA1323246C (en) 1993-10-19
GB2228987B (en) 1991-01-23
EP0354210A1 (en) 1990-02-14
EP0354210B1 (en) 1993-12-08
IL85710A0 (en) 1988-08-31
DE3886209D1 (en) 1994-01-20
GB8706250D0 (en) 1987-04-23
GB8920302D0 (en) 1990-02-21
BR8807422A (en) 1990-05-22
WO1988007169A1 (en) 1988-09-22
AU1391488A (en) 1988-10-10
AU600810B2 (en) 1990-08-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990309