As counter terrorism missions show no signs of slowing down and civilian casualties always a worry, the commando command is turning to a light, guided munition to chase down fast-moving targets
By Paul Mcleary
Small insurgent groups have long used speed and distance to try and outrun American precision-guided weapons launched from loitering drones and attack aircraft. But a new weapon being employed by U.S. special operators is trying to erase that tactic from their playbook.
A lightweight glide missile, smaller and more powerful than a Hellfire and fired from a C-130 gunship tens of thousands of feet above the battlefield, is about to start heading to the force by the thousands, according to SOCOM documents about an upcoming contract award.
SOCOM purchased several dozen Small Glide Munitions from Dynetics, a small firm in Huntsville in 2017. The SGM appears to have proven its value to commando leaders who are readying a contract for about 4,000 more of the 59-lb munition over the next four years.
The SGM can travel more than 20 miles and slam into targets moving up to 70 mph with its 36-lb. warhead, which is not only more powerful than a Hellfire, but clocks in at almost half the weight of the iconic 100-lb. munition.
The company was able to pack that punch into a lighter tube thanks partly to the fact that the SGM is unpowered, and uses wings that unfold after launch to glide to its target. A company official told me that the weapon was designed to be modular so the munition could fit on a variety of platforms, and components can be swapped out.
In a justification document explaining why it was not conducting a full and open competition to purchase the SGM, SOCOM said it needed to “expeditiously complete development, integration, test, and fielding a SGM capability for the AC-130W, AC-130J, and other Special Operations Forces (SOF) platforms” because “the combat need is immediate.” The document went on to say that the only other compatible munition “was removed from service on USSOCOM aircraft due to failure to achieve lethality performance, and high cost to redesign to meet mission requirements.”
In a contract expected to be award in July, SOCOM is expected to buy 700 SGMs in 2018 and 2019, with 900 more in 2020. That number rises to 1,000 per year in 2021 and 2022.
Despite the renewed focus on great power competition spelled out in the Pentagon’s recent National Defense Strategy, and the White House’s National Security Strategy, there’s little indication American special operators troops will peel away from long-term counterterrorism missions in the Middle East, Yemen, Eastern Africa and Libya.
Those missions tend to be small, fast-moving, and rely on precision firepower to protect the American forces spread among small groups far from bases or consistent air support. And the issue of civilian casualties looms large.
A Dynetics official told me that the SGMs semi-active laser guided munition uses lattice control fins for stability and control, taking a page from the work the company did on the Massive Ordnance Air Blast munition the infamous MOAB and the Massive Ordnance Penetrator
SOCOM had used several other munitions to fill the requirement for a lightweight munition, but decided that none really fit the bill. The command initially considered Raytheon’s Griffin, Northrop Grumman’s Viper Strike, Textron’s G-CLAW, and Dynetics’ SGM. But according to the justification document,
The command “phased the Viper Strike out of the inventory due to failure to achieve lethality performance, and high cost to redesign to meet mission requirements.”
The G-CLAW “is 2-3 years behind the SGM in maturity and experienced failures in its first flight test with a seeker,” and
The Griffin “does not address the required aspects of the 360 degree employment zone, launch signature, and support engagement scenarios in which attack azimuth and impact angle must be precisely controlled. At this time, there is no viable alternative to the SGM.”
The Dynetics official told me that the company is exploring putting the munition on other light attack aircraft and helicopters, and that “nothing that would preclude it from unmanned or light aircraft or gunship derivatives.”