This is a list of the missions that Thunderbird 3 took part in, including relief flights to Thunderbird 5. Flights to Thunderbird 5 were Thunderbird 3's main use in the series, only three times has it been seen in a rescue capacity.
Thunderbird 3's first appearance was rather late in the series, in The Uninvited. In this case, it was not used to effect the main rescue, but rather to take Alan Tracy to the space station to replace John Tracy on his shift of duty.
Thunderbird 3, with Alan, Scott and Tin-Tin on board, is launched into space in a attempt to reach the Sun Probe. Alan's first attempt to reach the probe with the safety beam fails and he and Scott realize that Thunderbird 3 must go much closer to the sun than originally planned. This beam succeeds in activating the Probe's retros and enables it to move away from the Sun, but Thunderbird 3's retros now fail. Brains realizes that he can jam Thunderbird 3's safety beam signal with the mobile Transmitter Truck, but this requires a complex calculation by the prototype robot Braman.
The Mighty AtomEdit
Thunderbird 3, with her launch sequence unseen, was used to take John back to Thunderbird 5, replacing Alan. Thanks to Lady Penelope arriving on Tracy Island, John showed up rather late. Despite this, Alan arrived home just in time to visit Penelope, and prank her with his siblings.
Thunderbird 3 was needed to pick up an astronaut who had drifted away from his satellite during a spacewalk. This mission was delayed as International Rescue was currently being hunted after being framed for the theft of important plans, as the Tracy's were concerned about the possibility of being caught if someone detected the Thunderbirds taking off, but Jeff eventually concluded that they had to try and save the missing astronaut (Aided by the fact that the astronaut's satellite was one of the tracking stations assigned to find them). The true thieves were exposed after Thunderbird 3 had recovered the astronaut but before they had to return to Tracy Island.
Danger At Ocean DeepEdit
After Scott and Virgil take off in Thunderbirds 1 and 2 to evacuate some patients from a crumbling hospital, their messages back to Tracy Island suffer from intense interference. Brains concludes that something is wrong with Thunderbird 5. Alan was already due to a visit to the satellite to swap jobs with John for a month, but due to the transmission issues, Jeff told him to sent off early, and to take Brains with him.
Once in Thunderbird 5, Brains records the interference on tape, and returns to Tracy Island with John in order to trace it. Luckily, Scott and Virgil also return from their rescue mission, which was successful, despite the communications black out, much to the relief of a worried Jeff.
Brains' experiments with the tape lead him to discover that radio communication could be cut off by high impedance waves caused by the close proximity of two peculiar substances; OD 60, and alsterene. He also learns that if the two substances are close enough, it can cause an explosion, the size of which depends on how much OD 60 and alsterene there is. They then realize that this kind of explosion is what truly happened to the Ocean Pioneer, and that the same is about to happen to it's successor.
Thunderbird 3 once again is seen docked with Thunderbird 5 for a monthly job swap between Alan and John. They spend some time together in the satellite, listening to the latest hit, Dangerous Game. Whilst enjoying the music, they then hear live transmissions (not intended for International rescue) coming from the USAF, claiming that unidentified fighter jets have shot down the RTL-2 for a third time, leading Alan to believe there may be more to this music than meets the eye.
As a "flashback episode", Thunderbird 3 is seen via footage from Sun Probe, as the story of how the Sun Probe was saved is retold. The story retelling wasn't the exact same as the actual event, however, as there was no mention of the part where Thunderbird 3's retros failed.
In Ricochet, a two-man satellite was knocked out of orbit. Thunderbird 3 was used to evacuate its crew before it re-entered Earth's atmosphere.
Give Or Take A MillionEdit
Thunderbird 3 was launched by Alan at the request of Nicky, a boy who won a visit to International Rescue's base during a Christmas contest at the Coralville Children's Hospital. It was Nicky's "Christmas wish" to see Thunderbird 3 take off, or it became his wish, as his initial wish to see the others launched simultaneously was said by Jeff Tracy (posing as Santa) to be impossible. Nevertheless, Nicky was highly satisfied with seeing Thunderbird 3 launch, calling it the greatest thrill of his life.
Thunderbirds Are Go (Film)Edit
Thunderbirds 1, 2, and 3 are launched after being assigned to escort the Zero-X spacecraft as it leaves the atmosphere on a journey to Mars, after a previous attempt at launching Zero-X was sabotaged by The Hood. This second time, Scott finds The Hood trying to vandilise the launch again, but he manages to escape after being caught. Scott summons Lady Penelope to chase him down. After Parker shoots The Hood, and presumably kills him, Zero-X launches without further incident.