Like the fly boats, they had priority over other craft and, on the Bridgewater Canal, carried a large blade mounted on the bow to cut through the tow rope of any other vessel that got in the way!
Seperti halnya perahu terbang, mereka mendapat prioritas dibanding perahu - perahu lain, dan sewaktu melintasi Bridgewater Canal, pisau besar yang terdapat di haluan perahu memotong tali - tali perahu lain yang menghalangi jalannya!