The land attack version of Tomahawk has inertial and terrain contour matching (TERCOM) radar guidance. The TERCOM radar uses a stored map reference to compare with the actual terrain to determine the missile's position. If necessary, a course correction is then made to place the missile on course to the target. Terminal guidance in the target area is provided by the optical Digital Scene Matching Area Correlation (DSMAC) system, which compares a stored image of target with the actual target image.
Unified Commanders develop contingency plans in response to developing strategic situations to achieve National Command Authority directed goals. The Unified Commander passes tasking for TLAM mission development to a Cruise Missile Support Activity (CMSA) for overland mission planning. The National Imagery and Mapping Agency (NIMA) provides the necessary databases for planning. Targets and maps are generated for TERCOM and DSMAC. Threat databases are provided for missile attrition analysis. Unified, Joint, and Battle Group (BG) Commanders direct the deployment and employment of the mission. Strike Planners select, task and coordinate TLAM strikes. The Launch platform FCS prepares and executes the TLAM mission. The launch platform launches the missile. The missile boosts and transitions to cruise flight, then navigates on the planned route. During flight, the missile will navigate using TERCOM and DSMAC and GPS (Block III). Enroute, some missiles may also execute a Precision Strike Tomahawk Mission (PST) transmitting its status back to a ground station via satellite communication. The missile executes its planned terminal maneuver and for TLAM-C hits a single aimpoint and for TLAM-D, single or multiple targets.
Primary Function: Long-range subsonic cruise missile for attacking land targets.
Contractor: Raytheon Co. [ex Hughes Missile Systems Co.] Tucson, Ariz.
Power Plant: Block II/III TLAM-A, C & D - Williams International F107 cruise turbo-fan engine ; ARC/CSD solid-fuel booster
Block IV TLAM-E - Williams International F415 cruise turbo-jet engine ; ARC solid-fuel booster
Length: 18 feet 3 inches (5.56 meters); with booster: 20 feet 6 inches (6.25 meters)
Weight: 2,900 pounds (1,315.44 kg); 3,500 pounds (1,587.6 kg) with booster
Diameter: 20.4 inches (51.81 cm)
Wing Span: 8 feet 9 inches (2.67 meters)
Range: Block II TLAM-A – 1350 nautical miles (1500 statute miles, 2500 km)
Block III TLAM-C - 900 nautical miles (1000 statute miles, 1600 km)
Block III TLAM-D - 700 nautical miles (800 statute miles, 1250 km)
Block IV TLAM-E - 900 nautical miles (1000 statute miles, 1600 km)
Speed: Subsonic - about 550 mph (880 km/h)
Guidance System: Block II TLAM-A – INS, TERCOM
Block III TLAM-C, D & Block IV TLAM-E – INS, TERCOM, DSMAC, and GPS
Warheads: Block II TLAM-N – W80 nuclear warhead
Block III TLAM-C and Block IV TLAM-E - 1,000 pound class unitary warhead
Block III TLAM-D - conventional submunitions dispenser with combined effect bomblets
Date Deployed: Block II TLAM-A IOC - 1984
Block III – IOC 1994
Block IV – IOC expected 2004
Costs $569,000 - current production unit cost(FY99 $)
$1,4000,000 - average unit cost (TY$)
$11,210,000,000 - total program cost (TY$)
Total Program 4 170 missiles