British utility-helicopter development depends on the engine timeline

Could a British Empire that did not decline develop a UH-1 Huey equivalent and later use a stopgap engine until a newer powerplant arrived?

A domestic utility helicopter of that class is plausible because the requirement is useful and technically attainable. The later engine sequence works only if powerplant development still follows its historical timing.

A Huey-like utility helicopter does not require a single extraordinary breakthrough, so sustained funding and development could produce a British counterpart. Later questions about the W70 and a Rolls-Royce Gnome stopgap are more conditional. A stronger aerospace sector could change the order and timing of engine programs as well as the airframe. The proposed sequence remains plausible if the relevant powerplants appear when they did historically, but that assumption needs to be stated rather than treated as automatic.