31:
238:-class ships, and no plans to deploy AGS on any other ship. AGS can only use ammunition designed specifically for the system. Only one ammunition type was designed, and the Navy halted its procurement in November 2016 due to cost ($ 800,000 to $ 1,000,000 per round), so the AGS has no ammunition and cannot be used. The Navy planned to remove the AGS from the ships starting in 2023.
412:
replace the LRLAP, but since it is the only munition designed to be fired from the AGS, the barrel, software, cooling system, and automated magazines would have to be modified to accommodate a different round. It could cost up to $ 250 million in engineering costs to modify all six guns on the three ships to accept a new round.
467:
was commissioned but prior to weapons system integration, the U.S. Navy moved to cancel the LRLAP due to excessive cost. With the number of ships reduced from 32 to 3 examples, the per-unit cost of each LRLAP shot increased to $ 800,000–1 million. This made the system untenable even though there
30:
411:
AGS cannot use ammunition designed for existing artillery, so each type of ammunition must be designed and manufactured for AGS. The only type to be designed as of 2018 was the LRLAP. LRLAP procurement, however, was canceled and there are no plans to replace it. Other projectiles were examined to
314:
mounting allows the use of unguided munitions as well if any are developed for it. Even though the 155 mm (6.1 in) caliber is the standard for both the US Army and NATO land artillery systems, the AGS is not designed to use the same standard munitions as other 155 mm (6.1 in)
427:
staff would "monitor new technologies" which might be used with the AGS system in the future. In particular he noted that the BAE Hypervelocity
Projectile testing, a cross-service 127 mm (5-inch) naval and 155 mm land, low-drag self-guided Mach 7-capable round originally intended for
455:
conducted a flight test of the munition in July 2005, reporting a flight distance of 59 nautical miles (109 km; 68 mi). The LRLAP ammunition features separate projectile and propellant portions. Total weight is 225 pounds (102 kg), including a bursting charge of 24 lb
301:
Originally designed for mounting as a vertical gun adapted from the VGAS design, this 155 mm (6.1 in) AGS was then designed and produced for mounting within a more conventional turret arrangement. The AGS was designed to deliver precision munitions at a high rate of fire and at
432:, was achieving range close to the original LRLAP specification while having superior rate of fire and accuracy. As of 2018, The HVP rounds were estimated to cost around $ 25,000 for a surface-to-surface 127 mm (5-inch) or $ 86,000 for an anti-missile variant 155 mm round.
398:
which equips most major surface combatants of the US Navy was to be its increased capability for supporting ground forces and striking land targets. With a 10-round-per-minute capacity, it would have had the ability to deliver the firepower of a battery of six 155 mm
329:'s flight test of the munition in July 2005 had a reported a flight distance of 59 nautical miles (109 km; 68 mi). However, LRLAP procurement was cancelled in 2016 and the navy had no plan to replace it. By early 2021, the navy was exploring replacing the AGS on
258:
proponents argued that the battleships should not be decommissioned until an alternative method of providing naval gunfire support could be deployed, while others argued that such support was no longer needed in the era of missiles and aircraft.
375:
The AGS uses the same 155 mm caliber as most
American field artillery forces, although it is unable to fire the same ammunition due to differences in the size and shape of both projectile and firing charges. The gun barrel is 62
290:, was decommissioned on 31 March 1992, the AGWSTP became a 127 mm (5-inch) gun with an intended range of 180 km (110 mi), which then led to the Vertical Gun for Advanced Ships (VGAS). The original
446:
The development of new ammunition for the AGS under the name Long Range Land Attack
Projectile (LRLAP) was one of the major advances offered by the AGS program. The munitions were highly precise, with a
391:
with fully automated ammunition supply and operation. The turret itself is designed to be stealthy, allowing for the entire length of the barrel to be enclosed and hidden from radar when not firing.
499:"Root Cause Analyses of Nunn-McCurdy Breaches -- Zumwalt-Class Destroyer, Joint Strike Fighter, Longbow Apache, and Wideband Global Satellite," Rand Corporation (2011); see Vol. 1, Ch. 3 via
861:
533:
419:
guided munition could be adapted for use with the AGS, officials announced in
January 2018 that there was now no plan for any replacement round for the AGS. Instead,
282:
in 1967. The
Advanced Gun Weapon System Technology Program (AGWSTP) evaluated a similar projectile with longer range in the 1980s. After the last battleship, the
403:. This was intended to increase the utility of vessels equipped with the weapon, especially in areas in which the US Navy exercises absolute sea supremacy.
251:
321:(LRLAP) ammunition for AGS was to be a major advance. LRLAP featured separate projectile and propellant portions and was to be highly precise, with a
638:
550:
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275:
787:
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856:
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298:-class design) was designed around this "vertical gun", but the project encountered serious technology and cost problems.
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456:(11 kg). The maximum length of the combined munition is 88 in (220 cm), amounting to about 14 calibers.
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of ten rounds per minute using a water-cooled barrel. The AGS is mounted in a turret specifically designed for the
846:
424:
420:
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artillery. This means that each type of munition must be designed and manufactured specifically for the AGS.
866:
730:
516:
459:
In 2004, the manufacturer stated that the goal for the LRLAP per-round cost was $ 35,000. Shortly after the
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against shore-based targets. A total of six of the systems were installed, two on each of the three
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missiles. The switch was scheduled to begin in late 2023 as the ships undergo maintenance periods.
581:
Does the Past Have a Place in the Future? The
Utility of Battleships into the Twenty-First Century
364:
219:
262:
There has been research on extending the range of naval gunfire for many years. The 203 mm
270:
program. The system was designed and tested in 1975, but the program was terminated in 1978.
657:"BAE Systems Delivers First Piece of Production Hardware for U.S. Navy's Advanced Gun System"
452:
326:
307:
204:
44:
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tested an 11 in (280 mm) sub-caliber saboted long-range round in a stretched
840:
772:
610:
600:, citing a letter from Major Tracy Ralphs to Senator John Warner on February 25, 1999
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400:
500:
551:"Latest Zumwalt Hypersonic Missile Installation Plan Calls For Removing Gun Mounts"
395:
381:
172:
683:"No New Round Planned For Zumwalt Destroyer Gun System; Navy Monitoring Industry"
788:"Geurts: Third Zumwalt DDG Will Be Commissioned After Combat Systems Activation"
460:
271:
587:(Thesis). Fort Leavenworth, Kansas: US Army Command and General Staff College.
823:
812:
642:
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missiles. In March 2022, it was announced that both AGS would be removed from
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long, and is able to fire the entire magazine (300+ rounds) with an average
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ranges. As a vertical gun system it would only have been capable of firing
128:
639:
What should become of the
Zumwalt class? The US Navy has some big ideas.
429:
303:
152:
367:. The first magazine was delivered to the U.S. Navy on May 25, 2010.
291:
124:
250:-class and AGS were designed and developed in the context of the
627:
Navy
Planning on Not Buying More LRLAP Rounds for Zumwalt Class
394:
A primary advantage of the AGS over the existing 127 mm
709:"Next-Gen Naval Gunfire Support: The USA's AGS & LRLAP"
224:
155 mm/62 (6.1-inch) Mark 51 Advanced Gun System (AGS)
341:
destroyers to enable installation of tubes to accommodate
773:"155 mm/62 (6.1") Mark 51 Advanced Gun System (AGS)"
748:
Raytheon
Excalibur Round Set to Replace LRLAP on Zumwalts
814:
AGS employment in asymmetric warfare simulation scenario
415:
After some research had been abandoned into whether the
488:
155 mm/62 (6.1") Mark 51 Advanced Gun System (AGS)
760:$ 86,000 + 5,600 MPH = Hyper Velocity Missile Defense
534:
Navy has no plan to introduce new ammo for DDG-1000
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234:-class ships. The Navy has no plans for additional
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611:"United States of America 16"/50 (40.6 cm) Mark 7"
501:http://www.rand.org/pubs/monographs/MG1171z1.html
825:AGS non-combatant evacuation simulation scenario
613:. Tony DiGiulian, navweaps.com. 9 August 2008.
594:from the original on 4 March 2016 – via
8:
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620:
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862:Military equipment introduced in the 2010s
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451:(CEP) of 50 m (160 ft) or less.
325:(CEP) of 50 m (160 ft) or less.
252:United States battleship retirement debate
18:
729:Cavas, Christopher P. (6 November 2016).
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571:
731:"New Warship's Big Guns Have No Bullets"
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722:
544:
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483:
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468:were no significant performance issues.
226:, it was designed to provide long-range
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517:New Warship’s Big Guns Have No Bullets
786:Burgess, Richard R. (28 April 2020).
268:Major Caliber Lightweight Gun (MCLWG)
7:
596:Defense Technical Information Center
519:- Defensenews.com, November 6, 2016
209:BAE Systems Armaments & Services
762:Breaking Defense, January 26, 2018
348:AGS was developed and produced by
276:Naval Ordnance Station Indian Head
35:Test firing of Advanced Gun System
14:
750:- News.USNI.org, 13 December 2016
629:- News.USNI.org, November 7, 2016
578:Van Dam, L. Bruce (4 June 1999).
442:Long Range Land Attack Projectile
319:Long Range Land Attack Projectile
207:system developed and produced by
187:Long Range Land Attack Projectile
681:LaGrone, Sam (11 January 2018).
490:, NavWeaps.com, 26 February 2017
182:Effective firing range
86:BAE Systems Land & Armaments
68:BAE Systems Land & Armaments
29:
852:Naval guns of the United States
185:83 nmi (150 km) with
549:LaGrone, Sam (16 March 2022).
536:Defense News, January 11, 2018
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1:
350:BAE Systems Armaments Systems
343:Common-Hypersonic Glide Body
333:ships with modules to carry
857:BAE Systems weapons systems
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177:10 rounds per minute (rpm)
142:9.61 m (31.5 ft)
425:Chief of Naval Operations
421:Naval Sea Systems Command
280:16"/45 caliber Mark 6 gun
264:8"/55 caliber Mark 71 gun
146:
51:Place of origin
28:
449:circular error probable
323:circular error probable
294:(1994 precursor to the
713:Defense Industry Daily
173:Rate of fire
228:naval gunfire support
689:. US Naval Institute
23:Advanced Gun System
790:. Seapower Magazine
715:. 23 February 2014.
659:. BAE Systems. 2010
197:Advanced Gun System
396:Mark 45 5-inch gun
365:United States Navy
266:was the US Navy's
220:United States Navy
59:Production history
646:. March 25, 2021.
222:. Designated the
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157:155 mm (6.1 inch)
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82:Manufacturer
794:12 February
735:DefenseNews
371:Description
272:Gerald Bull
103: built
841:Categories
775:. Navweps.
663:4 February
643:Navy Times
472:References
407:Ammunition
356:) for the
352:(formerly
335:hypersonic
256:Battleship
121:short tons
687:USNI News
555:USNI News
461:USS
401:howitzers
302:over-the-
163:Elevation
129:long tons
123:(94
589:Archived
430:railguns
423:and the
378:calibers
286:Missouri
211:for the
92:Produced
74:Designed
64:Designer
830:YouTube
819:YouTube
693:2 March
463:Zumwalt
387:Zumwalt
363:of the
359:Zumwalt
339:Zumwalt
331:Zumwalt
304:horizon
296:Zumwalt
288:(BB-63)
248:Zumwalt
242:History
236:Zumwalt
232:Zumwalt
218:of the
214:Zumwalt
203:) is a
189:(LRLAP)
153:Caliber
312:turret
310:; the
137:Barrel
592:(PDF)
585:(PDF)
560:8 May
436:LRLAP
292:DD-21
127:; 93
796:2021
695:2018
665:2013
562:2022
284:USS
274:and
246:The
195:The
119:104
116:Mass
95:2010
77:1996
41:Type
828:on
817:on
201:AGS
101:No.
843::
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721:^
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254:.
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