Anyone with any understanding of Thunderbirds will know that by far and away the best one to have would have been Thunderbird two. Thunderbird one just got your there quickly. Sure, Thunderbird three could go into space but that was all, and Thunderbird 4 was little more than an underwater car. Thunderbird 5 was just a telecommunication satellite how boring must that have been waiting for accidents to happen and then telling your Dad so your brothers could go sort it out. To be honest Thunderbird two was just all about the delivery of the machine that was doing the actually rescuing at the end of the day. The unceremonious dumping of Thunderbird 4 into the sea springs to mind. Virgil could have set himself up in a side project and called himself Man and Van Slough with a website like this https://www.uk-tdl.com/man-van.html might have been a nice earner for him.
Ok, it’s a bit unfair to likening the technological marvel that is Thunderbird two to a white van. When you look at Thunderbird two it seems to be about 5 times the size of an Antinov transport plane or an Airbus Beluga (the Biggest one we’ve got). The thrust that is required to get the thing in the air must have been enormous and it is about as aero dynamic as a brick. A friend once postulated, he was not a physicist, but he had a point, that Thunderbird two would have needed to have had its under thrusters on constantly just to keep it up in the air. Its wings are far too stubby to give it lift. This would have meant even more damage as it blasted its way across the countryside to the disaster area it was looking to prevent or help sort out.
It did have the best launch sequence though. The whole of Tracy island must have shaken to distraction when it took off. This is the other thing, it is launched from a secret garage cave that pops open up to make a runway that Google Earth would spot in second. Virgil selects what he’s taking with him, usually The Mole (the sixth Thunderbird really) position the big Green lump machine over the right pod and lowering it down. Imagine the fun if he’d got the wrong one and had to go back for it. Finally, the thrust to move the behemoth is found and it shoots out of the cave and the palm trees fall to the side otherwise Jeff Tracey’s horticultural budget is getting blown again. Why doesn’t it show up on RADAR? It should be a blip so big that there shouldn’t be anything else on the screen? Apparently, they had a blocking device. That must have made life fun for air traffic control when the pilots started to say a massive green transporter just shot past them at goodness what miles per hour. Ouch.