1628
· King Gustavus Adolphus, Master shipwright Henrik Hybertsson
King Gustavus Adolphus wanted Sweden's new flagship Vasa to be longer, taller, more heavily armed with two gun decks instead of one — added during construction. The shipwright knew the proportions were wrong but the king insisted. The Vasa sailed on her maiden voyage in August 1628 and capsized within twenty minutes of leaving Stockholm harbour. She had not yet cleared the city.
The principle:
Specifications added after the design is locked accumulate into ships that cannot float. Each request seems individually reasonable to the requester; the catastrophe is in the sum. The role of the engineer is to refuse the sum even when refusing each individual request is impossible.