Scale: 1:48. Plan showing the body plan, sheer lines with inboard detail and sketch of figurehead, and basic longitudinal half-breadth for Comet (1742); Terror (1742); Granado (1742); Firedrake (1742); Mortar (1742); Serpent (1742), all 8-gun, 2 mortar, Bomb Vessels. The plan includes the upper deck with platforms and hold superimposed, and a section and plan of the bomb bed and shell room.

Copies were sent in October 1741 to the merchant yards for the above ships.