Lockheed Martin has been awarded a $321.8m integration and test phase contract to continue to support the US Navy's long-range anti-ship missile (LRASM) programme.
The sole-source contract will allow the company to continue LRASM flight testing and integration onto the US Air Force (USAF) B-1B and the US Navy F/A-18E/F aircraft.
The LRASM programme is a joint effort between the Defense Advanced Research Projects Agency, Naval Air Systems Command, and the USAF.
An autonomous, precision-guided anti-ship standoff missile, the LRSAM is expected to achieve early operational capability for the USAF and navy in 2018 and 2019 respectively.
Lockheed Martin Missiles and Fire Control LRASM programme director Mike Fleming said: "The LRASM team has successfully met all requirements on an accelerated acquisition timeline in an effort to give our warfighters a much-needed robust, anti-ship capability.
"LRASM will give warfighters the ability to engage in previously denied battle environments."
The LRSAM is based on the successful joint air-to-surface standoff missile extended range (JASSM-ER) system, and is equipped with the proven 1,000lb penetrator and blast-fragmentation warhead.
The missile uses a multi-mode sensor, weapon data link and an enhanced digital anti-jam Global Positioning System to detect and destroy specific targets within a group of ships.
Last year, Lockheed successfully completed the first flight test of the LRSAM prototype on the F/A-18E/F Super Hornet at Patuxent River Naval Air Station, Maryland, US.
The missile was selected to demonstrate the offensive anti-surface warfare air-launched capability to combat maritime threats at significant standoff ranges.