[quote1250004054=HeatSurge]
lolwtf... I knew it expands a lot, but the fuel tanks don't match up either? That's gotta be pretty interesting to see...
[/quote1250004054]
They don't really leak, unless they top them up too much. They would though if fueled fully on the ground. The SR-71 is given enough fuel for takeoff, and to cruise for about 15 minutes. They are then fueled in the air, once the skin of the aircraft has been given enough time to expand. At the speeds, and altitude this plane reaches, if they made all the body pieces fit together on the ground, once at the high atmosphere, these parts would destroy themselves. Just by expansion, parts would warp, and all sorts of bad stuff happens.
I guess that would be a major contributing factor for this planes seemingly early retirement. Perhaps the fact of always having to have a fueling plane, and crew just to gas this up in the air each flight, would get costly.