The Tribal class's quoted endurance of 5,700 nautical miles at 15 knots broadly covers the 5,365-nautical-mile route to Singapore. An intermediate fuel stop would allow a faster passage. Moving the main base to Australia raises the corresponding distance to 9,644 nautical miles and the proposed destroyer requirement toward 10,000. Meeting that requirement would affect the size and hull form of future destroyers. Escort endurance would have to change alongside capital-ship design.
Notable Point · 1:13:21-1:14:38
Tribal-class range falls short of the Sydney requirement
A Sydney base would push destroyer endurance toward 10,000 nautical miles, changing hull size and form.