Interesting. I'd never heard of "operation plumbob" or the myth of the space bound 900kg metal cap.
THis is an interesting article about it.
https://gizmodo.com/no-a-nuclear-explosion-did-not-launch-a-manhole-cover-1715340946
We've probably all heard about how the SR71 leaks fuel on the ground because of the gaps in the panels, but that once in the air at speed, the panels heat up and stop leaking. It makes you wonder about the details of some of the devices that have gone faster, like the rocket sled. For one, not only the heat of the rocket sled, but also the wheels and axles and track that they run on.
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Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa
SOLD 2004 - gone but not forgotten