The Standard Missile family and Mark 41 Vertical Launching System show how equipment can retain a familiar name while changing substantially across variants and production batches. A Mark 41 installation built today is not technically identical to one installed four decades earlier, even when its broad dimensions and purpose remain recognizable. Terry Pratchett's family-axe analogy makes the continuity problem memorable: components may be replaced or reshaped while users still regard the system as the same inherited object. The modern comparison explains why labels such as Harvey armour or Krupp cemented armour should not be treated as timeless specifications.
Notable Point · 15:22-18:08
Why a shared name does not mean identical technology
Modern Standard Missiles and Mark 41 vertical launch systems illustrate the same incremental change seen in successive armour technologies.