Oct 13, 2026

US12761004 - Range extension device

A range extension device, capable in use of being reversibly engaged to a body of an artillery carrier shell, said shell comprising a payload cavity, said range extension device comprising an internal cavity comprising at least one energetic material charge, and an igniter, wherein the range extension device comprises a first region with an aperture which faces rearwardly, and second region with a closed end, wherein the closed end in use extends into the payload cavity of the carrier shell.

Assignee: BAE SYSTEMS PLC
Inventors: Thomas William Tyrell, Andrew David Williams, Benjamin Daniel Worrall
Filing date: 2023-08-29

artilleryrange_extensionmilitary

The patent describes a range extension device designed for artillery carrier shells, which includes a rocket assist mechanism that can be reversibly attached to the shell’s body. This device features an internal cavity with energetic material and an igniter, aimed at enhancing the shell’s range by providing thrust during flight.

Claim 1

1 . An artillery common carrier shell comprising: a main shell body; a fuze; and an ogive portion located between the main shell body and the fuse, the ogive portion forming a payload cavity capable of receiving a payload, wherein a rear of the artillery common carrier shell comprises a reversibly engaged range extension device, capable in use of being reversibly engaged to the body of the artillery common carrier shell, said range extension device comprising a rocket assist device having: a first region with an aperture which faces rearwardly; a second region with a closed end, wherein the second region is configured to extend into the payload cavity of the carrier shell; and at least one energetic material charge within the first region and the second region, the at least one energetic material including a rocket assist composition that provides thrust, the rocket assist composition having a uniform central cavity through the first region and the second region and adjacent to the aperture of the first region to ensure a consistent burn of the rocket assist composition, wherein an outer diameter of the second region is less than an outer diameter of the first region such that the second region can be extended into the payload cavity of the carrier shell. a main shell body; a fuze; and an ogive portion located between the main shell body and the fuse, the ogive portion forming a payload cavity capable of receiving a payload, wherein a rear of the artillery common carrier shell comprises a reversibly engaged range extension device, capable in use of being reversibly engaged to the body of the artillery common carrier shell, said range extension device comprising a rocket assist device having: a first region with an aperture which faces rearwardly; a second region with a closed end, wherein the second region is configured to extend into the payload cavity of the carrier shell; and at least one energetic material charge within the first region and the second region, the at least one energetic material including a rocket assist composition that provides thrust, the rocket assist composition having a uniform central cavity through the first region and the second region and adjacent to the aperture of the first region to ensure a consistent burn of the rocket assist composition, wherein an outer diameter of the second region is less than an outer diameter of the first region such that the second region can be extended into the payload cavity of the carrier shell.

Google Patents

https://patents.google.com/patent/US12761004

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12761004