When Remus Carey inherited the Huffin’ Puffin from his father it was a regular fishing boat. This served his purpose perfectly as it gave him a plausible cover. At the same time, though, he sat about improving it with a more powerful set of engines.
Outwardly, the Huffin’ Puffin doesn’t look much different to any other boat of its kind and it attracts some disparaging remarks from Marc Renouf who considers it to be ‘a bucket and tub’. However, as Remus explains in book 1, Dead in the Water, the Huffin’ Puffin is,
Better than the line of her bow might suggest. The engines develop a good twenty percent more power than her weight requires, the torque is eighty percent efficient. She has two propellers to reduce heeling, although her stern profile would have you believe she still had only the single motor installed by the boatyard.