<Tr> <Th> Warhead </Th> <Td> Nuclear: W80 warhead (retired) Conventional: 1,000 pounds (450 kg) High explosive or Submunitions dispenser with BLU - 97 / B Combined Effects Bomb or PBXN </Td> </Tr> <Tr> <Th> Detonation mechanism </Th> <Td> FMU - 148 since TLAM Block III, others for special applications </Td> </Tr> <Tr> <Th> Engine </Th> <Td> Williams International F107 - WR - 402 turbofan using TH - dimer fuel and a solid - fuel rocket booster </Td> </Tr> <Tr> <Th> Wingspan </Th> <Td> 8 ft 9 in (2.67 m) </Td> </Tr>

How many cruise missiles does the united states have