Fighter-bomber version for USAF Tactical Air Command, with improved fire-control radar (AN/ASG-14T-2), centerline and two wing pylons (for a total of five), and ability to carry one Mk 28 or Mk 43 nuclear weapon on the centerline pylon. The F-104C also had in-flight refuelling capability. On 14 December 1959, an F-104C set a world altitude record of 103,395 ft (31,515 m), 77 built.