GB2199123A - Homing projectile - Google Patents
Homing projectile Download PDFInfo
- Publication number
- GB2199123A GB2199123A GB08726326A GB8726326A GB2199123A GB 2199123 A GB2199123 A GB 2199123A GB 08726326 A GB08726326 A GB 08726326A GB 8726326 A GB8726326 A GB 8726326A GB 2199123 A GB2199123 A GB 2199123A
- Authority
- GB
- United Kingdom
- Prior art keywords
- projectile
- nose
- sight window
- generatrix
- intermediate piece
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
- H01Q1/281—Nose antennas
Abstract
A homing projectile with an antenna device incorporated into its nose minimises the attenuation of paraxial radiation received by a target seeking device 12, whilst retaining good aerodynamic properties, by providing a sight window 4 perpendicular to the median axis 5 of the projectile and a nose 3 connected to the projectile body by an intermediate piece 6, the extended generatrix of the nose being coincident with the generatrix of the truncated cone of the body. <IMAGE>
Description
A Homing Prolectlle This invention relates to a homing projectile.
Projectiles are known, for example see DE 27 14 688, wherein the sight windows behind which the target seeking device is positioned are designed to slant with respect to the median axis of the projectile. The main disadvantage of such systems is that the electromagnetic radiation received parallel to the median axis is relatively intensively reflected from the sight windows thus only a weak signal reaches the receiving detectors.
In DE 29 23 547 projectiles with target seeking devices are described in which the sight window has a spherical shape and forms the nose of the projectile.
Sight windows of this kind cause relatively high aerodynamic drag at supersonic speeds.
This invention seeks to provide a projectile in which the paraxial radiation received by the target seeking device is attenuated as little as possible through reflection while the projectile will nevertheless have good aerodynamic properties.
According to this invention there is provided a projectile having a body and a conical nose wherein a sight window, behind which a target seeking device is located, is positioned between the nose and the body, the sight window being positioned perpendicular to the median axis of the projectile, the nose being connected to the projectile body through an intermediate piece in such a way that the sight window has a visual aperture parallel to the direction of flight, and the extended generatrix of the nose being coincident with the generatrix of the truncated cone of the projectile body.
Further preferred features and advantages of the invention will be described hereinafter by reference to embodiments shown as examples of the invention as disclosed in Figures 1 and 2 of the drawings.
Referring to the drawings, Figure 1 illustrates by way of an example a projectile for firing from a barrel weapon, showing the projectile 1, the projectile body 2 and the projectile nose 3. A sight window 4 transparent to electromagnetic radiation is positioned perpendicular to the median axis 5 of the projectile 1.
The projectile nose 3 is connected to the projectile body 2 through an intermediate piece 6 in such a way that the sight window 4 has an aperture receiving radiation parallel to the direction of flight. In addition the projectile nose 3 has an angle of taper 7 identical to the angle of taper 8 of the truncated cone 9 of the projectile body 2.
The intermediate piece 6 may comprise, for example, a hollow aluminium body secured by means of an adhesive.
The target seeking device is situated behind the sight window 4 in the hollow space 10 and may comprise, for example, a hollow reflecting mirror 11 and a receiving sensor 12 which is positioned at the focal point of the mirror 11.
Figure 2 shows a further example of a projectile body 20 with a larger visual range for the sight window 40. This is achieved by bevelling the intermediate piece 20 at the end of which carries the projectile nose marked 30.
Claims (3)
1. A projectile having a body and a conical nose wherein a sight window, behind which a target seeking device is located, is positioned between the nose and the body, the sight window being positioned perpendicular to the median axis of the projectile, the nose being connected to the projectile body through an intermediate piece in such a way that the sight window has a visual aperture parallel to the direction of flight, and the extended generatrix of the nose being coincident with the generatrix of the truncated cone of the projectile body.
2. A projectile in accordance with Claim 1, wherein the intermediate piece tapers conically in the direction of the nose.
3. A projectile substantially as herein described and illustrated with reference to and as shown in Figure 1 or 2 of the drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863644456 DE3644456C1 (en) | 1986-12-24 | 1986-12-24 | bullet |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8726326D0 GB8726326D0 (en) | 1987-12-16 |
| GB2199123A true GB2199123A (en) | 1988-06-29 |
| GB2199123B GB2199123B (en) | 1990-01-24 |
Family
ID=6317212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8726326A Expired - Lifetime GB2199123B (en) | 1986-12-24 | 1987-11-10 | A homing projectile |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE3644456C1 (en) |
| FR (1) | FR2609166B1 (en) |
| GB (1) | GB2199123B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3807725A1 (en) * | 1988-03-09 | 1989-09-21 | Bodenseewerk Geraetetech | END PHASE STEERED BULLET |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2534384A (en) * | 1942-03-31 | 1950-12-19 | Spira Josef Hillel | Apparatus for polishing or forming facets on gems, diamonds, or the like |
| US2820964A (en) * | 1955-01-17 | 1958-01-21 | Bell Telephone Labor Inc | Antenna |
| US3762666A (en) * | 1971-06-08 | 1973-10-02 | Us Army | Hypervelocity missile design to accomodate seekers |
| SE429064B (en) * | 1976-04-02 | 1983-08-08 | Bofors Ab | FINAL PHASE CORRECTION OF ROTATING PROJECTILE |
-
1986
- 1986-12-24 DE DE19863644456 patent/DE3644456C1/en not_active Expired
-
1987
- 1987-11-10 GB GB8726326A patent/GB2199123B/en not_active Expired - Lifetime
- 1987-12-23 FR FR8718037A patent/FR2609166B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2609166A1 (en) | 1988-07-01 |
| GB2199123B (en) | 1990-01-24 |
| GB8726326D0 (en) | 1987-12-16 |
| FR2609166B1 (en) | 1989-12-15 |
| DE3644456C1 (en) | 1988-01-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |