Raytheon 
has released an image of its winning Small Diameter Bomb Increment II design. The illustration shows details of the GBU-53/B, such as its antenna placement. This air-delivered munition, dubbed SDB II, is meant to attack both stationary and moving targets in any kind of weather via its tri-mode seeker. The Air Force on Monday chose the GBU-53/B over a competing design offered by a Boeing-Lockheed Martin team. Raytheon is expected to start delivering SDB IIs in 2013 for carriage on platforms like the F-15E and F-35. Boeing builds the SDB I, which is designed to strike fixed targets.
Northrop Grumman test fired its newest solid rocket motor Dec. 4, part of an internally funded effort to rapidly design and build SRMs using advanced manufacturing techniques.
