Pipes on the ships of old were nothing new. Tobacco and rum made their appearance in short order with tobacco inherited from American Indians and rum from the Caribbean. Smoking aboard ship was allowed by limited to a safe area and at safe times, ergo the "smoking lamp". Where? Usually near the Galley, as it is here. A huge thanks to the amazing da'rum - a man of high ideals and many talents. This is just one of them.
I did an experiment today I filled one of my cobs with baccy then emptied it and filled the other cob with the same baccy. I found that both cobs hold about the same amount of baccy. Wow big experiment you might think but one cob (legend) smokes faster than the other (diplomat).
Is this normal for pipes?
A rough guess, surface area to coal. A wider area burning would burn quicker if your puffing was at the exact same tempo and strength. It is a reason why some pipes with narrower chamber diameters are better for flake and plug as they burn slower and plug and flake are traditionally stronger and more intense.