Lockheed Martin awarded Alliant Techsystems (ATK) a contract in excess of $240 million to produce additional composite components for low-rate initial production (LRIP) lots 4-8 of the F-35 Lightning II. ATK will use advanced fiber-placement technology to provide upper wing-box skins, lower wing-box skins, and engine nacelle skins for the conventional takeoff and landing (CTOL) and short takeoff/vertical landing (STOVL) variants of the F-35. Production will take place at ATK's Clearfield, UT, facility beginning in 2010 and continuing through 2015. Separately, ATK announced that it has received a $10 million contract from Northrop Grumman to manufacture composite inlet ducts for the F-35. Northrop Grumman, the design authority and primary producer of the inlet ducts, has contracted ATK as a second-source supplier. Production of the inlet ducts will take place at ATK's facility in Rocket Center, WV.