A parent design was intended to shorten design work and reduce technical risk. The roughly 85 percent to under 15 percent commonality figures quoted here come from a 2024 news report citing a person familiar with the alterations. They describe a reported loss of commonality as US requirements changed the FREMM-based design. Incomplete design work was a major part of the three-year delivery delay discussed alongside workforce and supply-chain problems. Skilled welders and metalworkers also had competing employers, so a nominal construction plan did not guarantee the capacity to build it. The Burke comparison adds a further distinction: successive Burke flights began from an established design already built to US standards.
Chapter · 2:20:08-2:51:31
Low commonality erased the parent-design advantage
Constellation's reported commonality with FREMM fell below 15 percent as design delay, workforce shortages, and supplier limits accumulated.