One ship provides a capability only when available, while two provide it in normal circumstances but leave no depth for a casualty or refit. Three allow continuous availability, and larger numbers add presence and surge capacity. Surrendering Tiger makes this rule especially important because the treaty bargain reduces the fast force as well as the battle line. Fleet value therefore depends on the ships that can actually deploy after accounting for maintenance, damage, and other commitments.
Notable Point · 1:37-2:07
Why a capability needs more than one hull
Several fast capital ships give the Royal Navy dependable availability across maintenance and deployment cycles.