Editing M109 howitzer (section)

==== Hypervelocity projectile (HVP) ====
In January 2016, the U.S. Army test-fired hypervelocity projectiles originally designed for use by [[U.S. Navy]] [[electromagnetic railgun]]s. They found that they significantly increased the gun's range. The Army is looking into using the M109 Paladin firing the HVP for [[ballistic missile defense]], as traditional missile interceptors are expensive, and gun-based missile defense used for point defense would use artillery at a much lower cost per round.<ref>[http://www.defenseone.com/technology/2016/02/New-weapons-pentagon-wants-tomorrows-wars/125611/  These Are the New Weapons the Pentagon Chief Wants for Tomorrow’s Wars] {{Webarchive|url= https://web.archive.org/web/20160203091722/http://www.defenseone.com/technology/2016/02/New-weapons-pentagon-wants-tomorrows-wars/125611/ |date=3 February 2016}}, Defense one, 2 February 2016</ref><ref>[http://www.military.com/daily-news/2016/02/02/micro-drones-arsenal-plane-railguns-funded-new-defense-budget.html  'Micro' Drones, 'Arsenal' Plane, Railguns Funded in New Defense Budget] {{Webarchive|url= https://web.archive.org/web/20161008083056/http://www.military.com/daily-news/2016/02/02/micro-drones-arsenal-plane-railguns-funded-new-defense-budget.html |date= 8 October 201}}, Military.com, 2 February 2016.</ref>  

The HVP is capable of being fired out to {{convert|50|nmi|mi km}} from a conventional cannon. It weighs {{convert|68|lb|kg|abbr=on}} with a {{convert |46|lb|kg|abbr=on}} flight body containing its guidance and warhead—less powerful, but more agile to hit small, high-speed targets. Modifications will be needed for the Paladin to effectively shoot the HVP, possibly including different propellant to achieve higher velocities, automated reloading systems to fire quickly enough to defeat salvo launches, improved barrel life, and a new fire control and sensor system.<ref>[http://breakingdefense.com/2016/02/carters-strategic-capabilities-office-arsenal-plane-missile-defense-gun/ Robot Boats, Smart Guns & Super B-52s: Carter’s Strategic Capabilities Office] {{Webarchive |url= https://web.archive.org/web/20160209230845/http://breakingdefense.com/2016/02/carters-strategic-capabilities-office-arsenal-plane-missile-defense-gun/ |date=9 February 2016}}, ''Breaking defense'', 5 February 2016</ref> During a test of the Air Force's Advanced Battle Management System (ABMS) in September 2020, an HVP fired from an Army Paladin howitzer successfully intercepted a [[Composite Engineering BQM-167 Skeeter|BQM-167]] target drone simulating a [[cruise missile]].<ref>[https://breakingdefense.com/2020/09/abms-demo-proves-ai-chops-for-c2/ ABMS Demo Proves AI Chops For C2]. ''Breaking Defense''. 3 September 2020.</ref><ref>[https://www.airforcemag.com/smart-bullet-downs-cruise-missile-in-2nd-abms-test/ ‘Smart’ Bullet Downs Cruise Missile in 2nd ABMS Test]. ''Air Force Magazine''. 4 September 2020.</ref>

HVP was renamed to gun-launched guided projectile (GLGP),<ref>{{cite news |url=https://news.usni.org/2023/04/27/report-to-congress-on-navy-shipboard-lasers-4 |title= Report to Congress on Navy Shipboard Lasers |last1=O'Rourke |first1=Ronald |date=21 April 2023 |website= USNI |publisher=Congressional Research Service |accessdate=29 August 2023}}</ref> canceled in the 2022 budget,<ref>{{cite news |url=https://www.military.com/daily-news/2021/06/04/it-may-be-end-of-line-navys-hypervelocity-projectile.html |title=It May Be the End of the Line for the Navy's Hypervelocity Projectile |last1=Seck |first1=Hope Hodge |date=4 June 2021 |accessdate=28 August 2023}}</ref> and tests continued in 2023.<ref>{{cite news |url=https://insidedefense.com/daily-news/army-executes-prototype-cannon-launched-hypervelocity-guided-projectile-sets-record |title=Army executes prototype cannon-launched, hypervelocity guided projectile, sets record |last1= Sherman |first1=Jason |date=29 March 2023 |accessdate=28 August 2023}}</ref>