TC 193 was a United States Air Force craft operational in 2066.
On 14 May 2066, the "most dramatic" order ever given by International Rescue — "Find the base of TC 193!" — rapped out over the radio to Thunderbird 5. TV 21 wrote about this in a front page article and noted the Thunderbird vehicles hunting a USAF craft could only mean one thing, that the organisation intended to attack and possibly destroy the only aircraft ever to elude their "fantastic" detection network. Their air correspondent stated that the chances of any organisation finding TC 193's base were very slim but that newspaper men who had covered International Rescue's operations and seen the machinery at their disposal were convinced they could not only find TC 193 but also shoot it down. (PROSE: Search and Destroy)