| 词条 | Bushmaster IV |
| 释义 |
| name = Bushmaster IV | image = | caption = | origin = United States | type = Chain-driven autocannon | is_ranged = yes | service = | used_by = | wars = | designer = Alliant Techsystems | design_date = | manufacturer = Alliant Techsystems | unit_cost = | production_date = | number = | weight = Receiver: {{convert|198|kg|lb|lk=on|abbr=on}} Feeder: {{convert|29|kg|lb|abbr=on}} Barrel: {{convert|138|kg|lb|abbr=on}} Total: {{convert|365|kg|lb|abbr=on}} | length = {{convert|4018|mm|in|lk=on|abbr=on}} | part_length = | width = {{convert|430|mm|in|abbr=on}} | height = {{convert|478|mm|in|abbr=on}} | cartridge = 40×365mm | action = Open bolt | rate = | velocity = | range = | max_range = | feed = Linkless feed | sights = }} 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 40×365mm 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] SpecificationsThe Bushmaster IV requires {{convert|5|hp|kW|lk=on|abbr=on}} 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 {{convert|62272|N|lbf|lk=on|abbr=on}}. The ammunition was originally developed for the Bofors 40mm L/70 cannon. See also
References1. ^{{cite web|url=https://www.atk.com/products-services/40mm-bushmaster-iv-automatic-cannon/|title=40mm Bushmaster IV Automatic Cannon|archive-url=https://web.archive.org/web/20140402143531/http://www.atk.com/products-services/40mm-bushmaster-iv-automatic-cannon/|archive-date=2 April 2014|dead-url=unfit}} {{Use dmy dates|date=June 2017}}{{Alliant Techsystems}}{{firearms-stub}}2. ^{{cite web|url=http://www.armytimes.com/article/20131108/NEWS/311080016/Bigger-badder-Bushmaster-cannon-works |title=Bigger, badder Bushmaster cannon in the works |date=8 November 2013 |archive-url=https://archive.is/20131230091159/http://www.armytimes.com/article/20131108/NEWS/311080016/Bigger-badder-Bushmaster-cannon-works |archive-date=2013-12-30 |subscription=yes |dead-url=yes |df= }} 3. ^{{cite web|url=http://www.dtic.mil/ndia/2003gun/boren.pdf|title=Presentation of the Bofors 3P and System Concept|last=Borén|first=Michael|date=June 2002|format=PDF|access-date=30 December 2013|archive-url=https://web.archive.org/web/20130228164346/http://www.dtic.mil/ndia/2003gun/boren.pdf#|archive-date=28 February 2013|dead-url=yes|df=dmy-all}} 2 : Autocannon|Vehicle weapons |
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