Global security company Lockheed Martin of Bethesda, Md., delivered the first M-DSA (modernized day sensor assembly) upgrade prototype to the US Army for use on the Apache helicopter. Five system design and development laser range-finder designators (LRFDs) were delivered to the Army under a three-year contract awarded to Lockheed in September 2008 to modernize the attack helicopter’s day sensor assembly. The chief targeting aid for the Apache, the LRFD establishes the range to the target for accurate weapon aiming. For the Hellfire II missile, the LRFD designates the aim point with a laser spot.