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词条 Long Range Land Attack Projectile
释义

  1. Specifications

  2. Program status

  3. 127 mm (5-inch) version

     Specifications 

  4. See also

  5. References

  6. External links

The Long Range Land Attack Projectile (LRLAP) is a precision guided 155 mm naval artillery shell for the U.S. Navy's Advanced Gun System. LRLAP was developed and produced by Lockheed Martin Missiles and Fire Control, the prime contractor being BAE Systems.

The LRLAP uses a rocket-assisted projectile with fin glide trajectory. The warhead effectiveness is comparable to that of the M795 artillery shell, and with the AGS it is capable of 6 round MRSI impact in a span of 2 seconds.[1] It uses a blast fragmentation type warhead.[2]

The LRLAP is used only in the AGS, and the AGS is used only on the Zumwalt-class destroyer, with two AGSs on each ship. In November 2016, the Navy announced it had decided to cancel procurement of the LRLAP. This was due to rising costs resulting from the trimming of the Zumwalt-class destroyer fleet to just three ships, raising individual shell cost to $800,000-$1 million, about as much as the Tomahawk cruise missile. About 90 rounds had been secured for testing aboard the three hulls, but a full buy of about 2,000 planned rounds would be about $1.8-$2 billion.[3][4]

Specifications

  • Caliber: 155 mm.
  • Weight:
    • Total: 225 lb (102 kg).
    • Bursting charge: 24 lb (11 kg).
  • Length (propellant and projectile): 88 in (223 cm).
  • Guidance: GPS/INS.
  • Precision: Circular error probable of 50 m or less.
  • Range: {{convert|100|nmi|km|-1}} max. (Different sources report {{convert|83|nmi|km|-1}}, or {{convert|74|nmi|km|-1}}.
  • Warhead: Unitary high-explosive.[5]
  • Cost:
  • 2004 Manufacturer's estimated per-unit cost at full production: $35,000.[6]
  • 150 LRLAP guided projectiles were procured in FY2015 with a unit cost of $476,946.67[7]
  • unit cost in 2016: $800,000 to $1,000,000.[3][8]

Program status

  • June 2005 - Successful guided flight test of the LRLAP sets gun-launched guided projectile range record of {{convert|59|nmi|km|0}}.[9]
  • September 2010 - Successful unguided flight test.[10]
  • August 2011 - Two live fire tests of 45 nautical miles range.[11]
  • June 2013 - Four full cycle live fire tests conducted.[12]
  • September 2013 - Lockheed receives $18 million contract to transition the LRLAP to production. Fielding planned for 2016.[13]
  • November 2016 - USN moves to cancel LRLAP projectiles citing excessive costs.[3]

127 mm (5-inch) version

In cooperation with BAE Systems a version of LRLAP was designed to be used with the 5"/54 caliber Mark 45 guns used on most Navy ships. It was never produced.[14]. Other guided munitions for these guns were BTERM and ERGM, which were also never produced.

Specifications

  • Caliber: 127 mm (5-inch).
  • Length (propellant and projectile):
  • Guidance: GPS/INS.
  • Range: {{convert|53|nmi|km|-1}} max.
  • Warhead: Unitary high-explosive.

See also

  • Extended Range Guided Munition
  • Ballistic Trajectory Extended Range Munition

References

1. ^http://www.globalsecurity.org/military/systems/munitions/lrlap.htm
2. ^{{Cite web |url=http://www.lockheedmartin.com/content/dam/lockheed/data/mfc/pc/LRLAP/mfc-lrlap-pc.pdf |title=Archived copy |access-date=2012-10-23 |archive-url=https://web.archive.org/web/20130730061830/http://www.lockheedmartin.com/content/dam/lockheed/data/mfc/pc/LRLAP/mfc-lrlap-pc.pdf |archive-date=2013-07-30 |dead-url=yes |df= }}
3. ^1 2 New Warship’s Big Guns Have No Bullets - Defensenews.com, 6 November 2016
4. ^[https://news.usni.org/2016/11/07/navy-planning-not-buying-lrlap-rounds Navy Planning on Not Buying More LRLAP Rounds for Zumwalt Class] - News.USNI.org, 7 November 2016
5. ^Long Range Land Attack Projectile (LRLAP) - BAE Systems
6. ^{{cite web|url=http://www.navweaps.com/Weapons/WNUS_61-62_ags.php|title=155 mm/62 (6.1") Mark 51 Advanced Gun System (AGS)|publisher=Navweps}}
7. ^{{cite web|title=Department of Defense Fiscal Year (FY) 2017 President's Budget Submission|url=http://www.secnav.navy.mil/fmc/fmb/Documents/17pres/PANMC_1_BOOK.pdf|accessdate=9 November 2016|page=137}}
8. ^{{cite web|url=http://www.navyleague.org/sea_power/jul_04_23.php|title=LRLAP Will Boost Fire-Support Range|date=July 2004|publisher=Navy League of the United States}}
9. ^DD(X) Team Flies Long-Range Land-Attack Projectile to Record Range - Space War
10. ^BAE Systems Completes Successful Rocket Ballistic Test of 5-Inch Long Range Land Attack Projectile
11. ^"Navy Conducts DDG 1000 Round Testing." {{webarchive|url=https://web.archive.org/web/20120402225401/http://www4.marinelink.com/news/conducts-testing-round340586.aspx |date=2012-04-02 }} Naval Sea Systems Command Office of Corporate Communication, 23 September 2011.
12. ^"Navy Successfully Tests Long Range Attack Projectile."
13. ^Lockheed Martin Receives $18 Million Contract to Transition the LRLAP to Production - Navyrecognition.com, 24 September 2013
14. ^ {{dead link|date=January 2018 |bot=InternetArchiveBot |fix-attempted=yes }}

External links

  • Advanced Gun System/Long-Range Land Attack Projectile - Lockheed Martin {{webarchive|url=https://web.archive.org/web/20090204070237/http://www.lockheedmartin.com/products/LongRangeLandAttackProjectile/index.html|date=4 February 2009}}
  • Long Range Land Attack Projectile - Global Security
  • LRLAP Gallery- DD(X) National Team {{webarchive|url=https://web.archive.org/web/20081202041922/http://www.ddxnationalteam.com/gallery/LRLAP|date=2 December 2008}}

1 : Artillery shells
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