The discussion refers to reports of a submarine following the Queen Elizabeth carrier group. No precise distance is given because such operational figures are treated as unsuitable for public discussion. Merlin helicopters reportedly detected and intercepted the contact beyond missile range. This shows the function of an airborne anti-submarine screen without claiming sensitive or unsupported performance numbers. A carrier group's defensive reach depends on its aviation and escorts rather than the carrier hull alone.
Notable Point · 2:32:08-2:32:44
Merlin helicopters in carrier anti-submarine screening
A deliberately non-specific account of how carrier-based Merlin helicopters detected and intercepted a submarine outside weapon range.