HAS59
You sound a bit confused between Depth Charges and Nuclear Depth Bombs. One of them had a conventional explosive capability, went bang and resulted in a spout of water rising over the drop point. The other one had a nuclear explosive capability, went B_A_N_G and boiled lots of fish.
As N.R. said - the Nimrod Force did not carry Depth Charges. They did however, carry fishboilers until their removal from service in 19
