A rocket is a long cylinder with a conical point at one end, belching flame at the other; it is used as a projectile, and is more fully termed a “skyrocket”. The Chinese used them as fireworks and signals – the preparation of rockets was described by Marcus Graecus, Book of Fires for the Burning of Enemies, c.1300 [Singer 379] – but rockets were not found in period heraldry. The skyrocket has its point to chief by Society default. For related charges, see pole-cannon.
Thomas MacAndrew bears: Counter-ermine, a skyrocket bendwise Or.
Luke of Bright Hills bears: Or, on a pale between two crescents azure, a rocket Or.