XM1203 Non-Line-of-Sight Cannon

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XM1203 Non-Line-of-Sight Cannon
XM1203 Non Line of Sight-Cannon (NLOS-C).jpg
Prototype 1 of the NLOS-C in 2009
TypeSelf-propelled artillery
Place of originFlag of the United States.svg  United States
Specifications
Mass18+ tons
Crew2

Armor Composite
Main
armament
155 mm cannon
Engine Detroit Diesel 5L890

The XM1203 Non-Line-of-Sight Cannon (NLOS-C) was a 155 mm self-propelled howitzer. It was the lead vehicle for the U.S. Army's Future Combat Systems Manned Ground Vehicles program.

Contents

The NLOS-C was a replacement for the M109 howitzer, but cancelled in December 2009. The NLOS-C used technology from the XM2001 Crusader, a U.S. Army self-propelled howitzer canceled in 2002.

The NLOS-C provided networked, extended-range targeting, and precision attack of point and area targets in support of other combat units with a suite of munitions that included special purpose capabilities. The NLOS-C provided sustained fire for close support and destructive fire for tactical standoff engagement.

The system's primary purpose was to provide responsive fire in support of the FCS Combined Arms battalions (CABs), and their subordinate units in concert with line-of-sight, beyond-line-of-sight, non-line-of-sight (NLOS), external and Joint capabilities.[ jargon ]

NLOS-C prototype NLOS-CAugust2003.jpg
NLOS-C prototype

The system, as proposed, looked to add capabilities that the current M109 systems do not offer. One of the proposed systems advantages was the ability to switch shell types quickly on a one-by-one basis allowing an illumination round to be followed by a point-detonation round, to be followed by an area effect round. This would have given the system the ability to fire different rounds as required by different fire calls or to change types of shells. For instance, destroying a building then engaging anyone fleeing the area with the next round.

The rate of fire in the proposed system would have enabled more rounds sent downrange in a given amount of time, allowing more firepower per system than available with the current M109 system. Another capability offered by the NLOS Cannon was multiple rounds simultaneous impact (MRSI) where the cannon fires a sequence of several rounds at different trajectories such that the rounds all hit the same target at the same time, resulting in little or no reaction time for the enemy to adjust its position. This was accomplished by including the autoloader from the Crusader project which achieved the goals of a much improved fire rate with a reduction in required crew. [1]

The proposed system was envisioned as part of a fast mobile force networked via improved communications and data capabilities to allow rapid response with enhanced accuracy with the view to reducing friendly fire incidents along with lessened collateral damage, while providing superior protective artillery fire to units requiring gunfire support. Navigation of the vehicle and targeting information were provided via GPS and networked information systems. [2]

Improvements in the refueling arrangements and automation of ammunition reloading reduced the amount of time spent on resupply and during which the gun would be unavailable for combat support. This also allowed the system to use a crew of two instead of five.

The NLOS-C was among the heaviest of the eight MGV variants. In June 2003, the NLOS-C was projected to weigh 25.3 tons at essential combat capability and 29.2 tons at full combat capability. [3]

The NLOS-C had especially high commonality with the NLOS-Mortar vehicle. [4]

History

BAE Systems developed a concept technology demonstrator testbed. BAE completed testing the demonstrator in early 2006. [5]

In May 2008, BAE revealed the first Non-Line-of-Sight Cannon prototype. Prototype 1 made its first public appearance on the National Mall, in Washington in June 2008. Eight prototypes were delivered to the U.S. Army's Yuma Proving Ground in Arizona by 2009. [6] BAE produced five prototypes. [5]

In April 2009 Defense Secretary Robert Gates recommended that the MGV program be terminated. Congress had directed that the Army continue working on the NLOS-C as a separate initiative. In December, Pentagon acquisition chief Ashton Carter directed the Army to cancel the NLOS-C. [7] Carter directed the Army to begin work on the Paladin Improvement Program (M109A7). The electric rammer from the NLOS-C and some of the electric drives were integrated into the M109A7. [5]

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References

  1. "M-109 Replacement Enters Production". Strategypage.com. 2007-07-24. Archived from the original on 2012-01-18. Retrieved 2011-03-31.
  2. "Artillery: M-109 Replacement Enters Production". Archived from the original on 2009-07-14. Retrieved 2009-07-06.
  3. Pernin et al, Ch. 5, p. 95-118.
  4. Wasserbly, Daniel (21 April 2008). "FCS Mortar System Moving Ahead in Wake of Its 'Big Brother' Cannon". Inside the Army. Vol. 20, no. 16. Inside Washington Publishers. p. FCS Mortar System Moving Ahead in Wake of Its 'big Brother' Cannon. JSTOR   24826636 . Retrieved 18 February 2022.
  5. 1 2 3 Pernin et al, Appen. E, p. 269-304.
  6. C. Todd Lopez (2008-05-30). "First FCS Manned Vehicle to Make Public Debut". Army.mil. Archived from the original on 2010-04-12. Retrieved 2011-03-31.
  7. Censer, Marjorie (14 December 2009). "Promising thorough vehicle review ...: DOD Acquisition Chief Formally Terminates Army's NLOS Cannon". Inside the Army. Vol. 21, no. 49. Inside Washington Publishers. JSTOR   24831487 . Retrieved 18 February 2022.

Sources