A proper law

[David Hansen]

On 6 Mar 2003 at 15:45, Brian Morrison wrote:

> Some of the Tallboys were able to penetrate 40 feet or more of
> reinforced concrete in the U-Boat pens at Brest.

Some split on impact. Those that penetrated tended to only go part of 
the way through the concrete before exploding, though this still 
caused damage inside, according to my recollections of a couple of 
books on the subject. The RN bomb went through the concrete before 
exploding.


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