Engineering:Bushmaster IV
| Bushmaster IV | |
|---|---|
| Type | Chain-driven autocannon |
| Place of origin | United States |
| Production history | |
| Designer | Alliant Techsystems |
| Manufacturer | Alliant Techsystems |
| Specifications | |
| Mass | Receiver: 198 kg (437 lb) Feeder: 29 kg (64 lb) Barrel: 138 kg (304 lb) Total: 365 kg (805 lb) |
| Length | 4,018 mm (158.2 in) |
| Width | 430 mm (17 in) |
| Height | 478 mm (18.8 in) |
| Cartridge | 40×365mmR |
| Action | Open bolt |
| Feed system | Linkless feed |
The Bushmaster IV is a 40 mm chain-driven autocannon designed and built by Alliant Techsystems, based on the M242 Bushmaster, Bushmaster II and Bushmaster III.[1][2] The Bushmaster IV fires 40×365mmR 3P (Prefragmented, Programmable, Proximity-fuzed), APFSDS-T Mk I, and APFSDS-T Mk II rounds. The 3P round will provide air burst capability and the APFSDS-T Mk II can penetrate armor with a thickness in excess of 150 millimeters.[3]
Specifications
The Bushmaster IV requires 5 hp (3.7 kW) at 24 volts to operate, fires from a cook off safe open bolt with absolute hangfire protection, and ejects forwards. It fires NATO standard 40×365mm ammunition from an integral linkless feed and has a recoil force of 62,272 N (13,999 lbf). The ammunition was originally developed for the Bofors 40mm L/70 cannon.
See also
- M230 30 mm autocannon
- M242 Bushmaster 25 mm chain gun
- Bushmaster II 30 mm chain gun
- Bushmaster III 35 mm chain gun
- Bofors 40 mm L/70
References
- ↑ "40mm Bushmaster IV Automatic Cannon". https://www.atk.com/products-services/40mm-bushmaster-iv-automatic-cannon/.
- ↑ "Bigger, badder Bushmaster cannon in the works". 8 November 2013. http://www.armytimes.com/article/20131108/NEWS/311080016/Bigger-badder-Bushmaster-cannon-works.
- ↑ Borén, Michael (June 2002). "Presentation of the Bofors 3P and System Concept" (PDF). http://www.dtic.mil/ndia/2003gun/boren.pdf.
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