GB1554098A - Tubular projectile - Google Patents
Tubular projectileInfo
- Publication number
- GB1554098A GB1554098A GB49862/77A GB4986277A GB1554098A GB 1554098 A GB1554098 A GB 1554098A GB 49862/77 A GB49862/77 A GB 49862/77A GB 4986277 A GB4986277 A GB 4986277A GB 1554098 A GB1554098 A GB 1554098A
- Authority
- GB
- United Kingdom
- Prior art keywords
- projectile
- ratio
- passage cross
- tubular body
- constricted region
- 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
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
- F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
- F42B10/34—Tubular projectiles
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Paper (AREA)
- Radar Systems Or Details Thereof (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
The projectile consists of a tubular body (10), of a cap (16) which breaks at the start of the shot, a delivery casing (14) which detaches at the exit of the gun, and a forcing belt (12). At the front end, the internal and external surfaces of the body (10) are conical and delimit a leading edge whose angle is between 5 DEG and 15 DEG . The passage cross-section inside the body decreases from the front towards a cylindrical constricted region, the ratio between these passage cross-sections in the constricted region and at the entry being at least 0.65, but less than 1, and the ratio between the maximum wall thickness and the half-calibre of the projectile being between 0.18 and 0.45. The conditions of flow in the tubular body are such that the drag is low in a first part of the trajectory, but increases sharply when the Mach number has fallen to a particular value, which makes the projectile particularly useful as a training projectile. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US74682076A | 1976-12-01 | 1976-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1554098A true GB1554098A (en) | 1979-10-17 |
Family
ID=25002475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB49862/77A Expired GB1554098A (en) | 1976-12-01 | 1977-11-30 | Tubular projectile |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS53118900A (en) |
| BE (1) | BE861230A (en) |
| BR (1) | BR7707970A (en) |
| CA (1) | CA1064321A (en) |
| CH (1) | CH623407A5 (en) |
| DE (1) | DE2753633A1 (en) |
| FR (1) | FR2373033A1 (en) |
| GB (1) | GB1554098A (en) |
| IN (1) | IN148611B (en) |
| SE (1) | SE432831B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2130691A (en) * | 1982-11-24 | 1984-06-06 | Mauser Werke Oberndorf | Projectile with a tubular body |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL51505A (en) * | 1976-03-26 | 1983-10-31 | Flatau Abraham | Supersonic low drag tubular projectile |
| DE3335997A1 (en) * | 1983-10-04 | 1985-04-11 | Rheinmetall GmbH, 4000 Düsseldorf | TRAINING FLOOR |
| JPH0717999Y2 (en) * | 1988-11-30 | 1995-04-26 | 防衛庁技術研究本部長 | Training bullets |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR427714A (en) * | 1911-03-24 | 1911-08-11 | Haralambi Djamdjieff | Hollow projectile system |
| DE1453827A1 (en) * | 1965-05-29 | 1969-10-23 | ||
| CA956179A (en) * | 1971-06-17 | 1974-10-15 | Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government | Tubular projectile |
| AU7519774A (en) * | 1973-11-16 | 1976-05-13 | Ca Minister Nat Defence | Tubular projectile |
| IL51505A (en) * | 1976-03-26 | 1983-10-31 | Flatau Abraham | Supersonic low drag tubular projectile |
-
1977
- 1977-05-30 CA CA279,409A patent/CA1064321A/en not_active Expired
- 1977-11-21 IN IN404/DEL/77A patent/IN148611B/en unknown
- 1977-11-25 BE BE182952A patent/BE861230A/en unknown
- 1977-11-30 CH CH1465477A patent/CH623407A5/en not_active IP Right Cessation
- 1977-11-30 FR FR7736197A patent/FR2373033A1/en not_active Withdrawn
- 1977-11-30 GB GB49862/77A patent/GB1554098A/en not_active Expired
- 1977-11-30 BR BR7707970A patent/BR7707970A/en unknown
- 1977-12-01 JP JP14460977A patent/JPS53118900A/en active Pending
- 1977-12-01 SE SE7713657A patent/SE432831B/en not_active IP Right Cessation
- 1977-12-01 DE DE19772753633 patent/DE2753633A1/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2130691A (en) * | 1982-11-24 | 1984-06-06 | Mauser Werke Oberndorf | Projectile with a tubular body |
Also Published As
| Publication number | Publication date |
|---|---|
| IN148611B (en) | 1981-04-18 |
| CA1064321A (en) | 1979-10-16 |
| FR2373033A1 (en) | 1978-06-30 |
| SE432831B (en) | 1984-04-16 |
| BE861230A (en) | 1978-03-16 |
| DE2753633A1 (en) | 1978-06-08 |
| CH623407A5 (en) | 1981-05-29 |
| JPS53118900A (en) | 1978-10-17 |
| BR7707970A (en) | 1978-08-15 |
| SE7713657L (en) | 1978-06-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |