English Channel being: length from nose to notch between the flukes of the tail, 622 in.; from the nose to the front edge of the dorsal fin, 29 in.; height of dorsal fin, 42 in.; length of base of dorsal fin, 8 in.; length of pectoral fin, 94 in.; breadth of pectoral fin, 32 in.; breadth of tail flukes, 13 in.
Both sides of the flippers and flukes are black.
Thus it is used of the purchase used in raising the flukes of an anchor to the bill-board; of a piece of wood or metal used to strengthen a sprung mast or yard; and of a plate of metal used, as in railway construction, for the strengthening of the meeting-place of two rails.