Terrible was pierced for twenty-eight 32-pounders on the gun deck and twenty-eight 18-pounders on the upper gun deck. Fourteen 9-pounders on the quarterdeck and four on the forecastle completed the nominal 74. Those figures describe the intended gunport arrangement, which did not necessarily match the guns actually carried. British 74s could acquire more 18-pounders than the nominal layout suggested, while their lighter 9-pounders were less highly valued.
Notable Point · 54:28-55:22
A 74's gunports did not settle her armament
Terrible's nominal gun layout illustrates why a ship's rated armament and actual weapons need to be distinguished.