Fireflash

 The Fireflash atonic airliner appeared in the very first Thunderbirds episode "Trapped in the Sky", which is still one of the best, as well as one or two others.

One of Derek Meddings's usual striking designs, it's a fine looking machine with some unusual touches, such as the passenger lounges built into the wings, and the cockpit set way back in the tail. As always, there's something that needs to go wrong, so in the case of Fireflash it's an atomic reactor which needs servicing after every few...