Was the Polish Grom class close to the destroyer the Royal Navy wanted?
Short answerBroadly yes: it was close to an export Tribal in size and general-purpose intent, though its armament details differed from British preferences.
NotesThe comparison is close, though not exact: Grom is somewhat heavier than the British standard and carries seven 4.7-inch guns rather than a Tribal's eight. Its twin triple torpedo mounts also differ from the quadruple or quintuple arrangements Britain commonly preferred by then, while its anti-aircraft guns and depth charges fill familiar fleet roles. Its general-purpose balance is the main point. A smaller navy benefits from a flexible destroyer that can perform gun, torpedo, anti-aircraft, and antisubmarine work instead of a narrowly specialised ship. That logic explains why Grom resembles an export Tribal without copying the British design detail for detail.