HPC

[greentangerine]

The Tallboy was 12,000lb and the GrandSlam 21,500lb. Both Barnes Wallis designed.

[Moxi]

When they went in to production the bomb cases were cast one by one as "specials" at a limited number of capable foundries across the UK, once machined they were hand filled with Torpex explosive using the time honoured bucket chain and standing the bomb on its nose and pouring the explosive in at the tail end. Interestingly the tallboy casings went on to serve as the first casing for kiloton nuclear bombs and the grandslam casing was shared with America for use in the first series of hydrogen bombs due to their exceptional metallurgical characteristics and space inside the casing.

Barnes Wallis was the archetypal British inventor, quiet and determined genius.

Moxi

[Moxi]

https://www.msn.com/en-gb/news/uknews/n ... 92e9&ei=46

Wonder if anyone in high office is paying attention this morning ?

Moxi