Talk:Operation Hurricane

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Calder Hall vs Windscale

According to the Sellafield article Calder Hall wasn't 'connected to the grid' until 1956. If [1] can be trusted it wasn't even 'ordered' until 1953 (i.e. the year after this test). To me that looks like the UK produced plutonium must have come from the Windscale piles. miterdale 20:38, 15 March 2006 (UTC)[reply]

The first UK plutonium came from the first two (IIRC, i've none of my sources to hand) piles. The creation "proper" power plants, (Magnox), conceted to the grid (several used also for plutonium generation) didn't occur untill the mid 50's (tieing up that date anyway). Pickle 17:07, 26 January 2007 (UTC)[reply]

Fat Man

The weapon was a close copy of the Fat Man (Nagasaki) weapon, although the design was modified to use a levitated pit.

I was wondering how it can be a copy of Fat Man if all nuclear technology exchanges between the US and Britain were unilaterally cut-off by the US implementing the McMahon Act in 1946. If true, presumably the British must have already known a considerable amount about the Fat Man warhead design to have been able to copy it in the first place.