Royal Navy shock testing: components, simulation and fleet size

Why does the Royal Navy approach shock testing differently from the US Navy?

Component shock tables, simulation and allied data reduce reliance on full-ship trials. A small fleet makes the repair and availability risks of those trials harder to absorb.

British shock testing concentrates on components and systems using large shock tables, supported by computer simulation. Data from allied trials can refine that modelling where systems are shared. Testing equipment before installation reduces one source of risk, while the hull and keel still depend on structural design and simulation without a full-ship trial. An explosive trial can damage a ship and require repairs even when it passes, and a small fleet has less capacity to absorb that absence. The Type 23 and Type 45 history remains tentative: Type 23s are recalled as having undergone shock trials, with a planned Type 45 trial abandoned after the class fell to six ships. Losing one ship temporarily from a class of six would have a greater effect on availability than losing one from the twelve originally envisaged. Earlier component testing is judged to mitigate the change in risk, although it does not supply the same physical trial of the complete ship. Future Type 26 trials remain speculative, including the possibility of drawing on Australian or Canadian results.