Originally Posted by
In Tor Wot
From what I remember it was more to do with weapon construction. UK 1000lb bombs were (are still) forged and are swaged from a single billet. They are capable of penetrating further than the US Mk 80 series which are cast - better for fragmentation but poorer penetration capabilities.
On a number of missions the Buffs used the UK 1000lb as an airfield denial weapon as it was capable of penetrating the operating surfaces and generating greater heave.
Ok, that tracks. The book referred to the US bombs shattering and not making a big enough crater. This would explain it. Thanks!