HMS Charybdis fought in “Pedestal” in August 1942. Originally she was part of Force Z, escorting the two battleships and three aircraft carriers as far as the Skerki Bank, where she turned back towards Gib with the capital ships. But when HMS Nigeria was disabled and HMS Cairo sunk, she was sent back east to augment Force X escorting the merchant ships on the last leg to Malta. Nigeria and Cairo were the only ships in Force X equipped with VHF radio enabling them to communicate with fighter aircraft and direct them. My question is: was Charybdis also equipped with fighter direction radio? The Wikipedia article on Pedestal says she was (without quoting a source for that information) but other sources such as Peter Smith are silent about the point. An on-line memoir for 1943 records Charybdis communicating with a Sunderland in attacking a U- boat, using Aldis lamps, which suggests that either she wasn't or if she was, it wasn't working that day. The important point is that, if she was equipped with FDR, why didn’t Admiral Burrough commanding a Force X in 1942 transfer his flag to her when she fought up with what was left of Force X? Ships and, I think, RAF aircraft were lost because of the inability to communicate, so the point matters. Can any kind soul point me in the right direction?