The historical commissioning dates provide the starting rhythm, but a six-ship order would justify engaging two yards. Alternating deliveries from each yard could produce ships in successive years rather than waiting on one building sequence. The scenario highlights how yard allocation and parallel capacity can matter as much as the design itself in force-expansion plans.
Notable Point · 4:13:11-4:14:08
Building six Invincibles across two shipyards
Parallel construction at Vickers Armstrong and Swan Hunter could put a six-ship Invincible fleet into service during the 1980s.