Would Britain keep its jet lead after the war?

How much postwar advantage would Britain retain, and would the playing field level by the 1950s?

The United States would probably catch up by the 1950s, leaving an Anglo-American lead while Britain retains a stronger engineering reputation and industrial base.

The United States would probably catch up rather than remain permanently behind. By the 1950s the result is more likely an Anglo-American lead, with political delays in both countries narrowing Britain's original advantage. Britain could nevertheless retain a much stronger reputation for engineering and a deeper turbine industrial base than it possessed historically. The technology would also spread beyond aircraft and ships into applications such as gas-turbine locomotives.