How foreknowledge could accelerate the 1850 Royal Navy

How could modern knowledge change Royal Navy ship procurement over thirty years if applied from 1850?

Invest in steam machinery and the supporting industrial, electrical, medical, and computational facilities, while developing the manufacturing precision needed for advanced ships.

The counterfactual gives modern technical knowledge to someone directing Royal Navy construction from 1850. Investment in steam machinery comes first, with additional support for the shipyards, medical facilities, electrification, and computing needed behind a more advanced fleet. Knowledge of unsuccessful approaches could reduce wasted development, but manufacturing precision still has to improve before turbines become practical. A target of turbine-powered dreadnoughts by about 1870 is proposed, while an earlier suggestion of 1865 is challenged on infrastructure grounds. Funding the necessary industrial base remains part of the hypothetical programme, rather than an assumption that knowing the final design makes it immediately buildable.