If you have ever lifted up the 1155 radio then you would see why the blocks are so strong and made of bronze.

Hi thanks for the reply have a look at this site its says pb355 was carring a full pay load of bombs when it went down also there is a plaque on the pier and a report in the worthing herald at the time of the crash that PB355 was carrying 90.000lbs of bomb thats why there is almost nothing left after it blew up.http://www.worthingherald.co.uk/news/nostalgia/lancaster-bomber-crash-on-worthing-beach-1-6180987