DICTIONARY OF

Fulmar 148 Futtock Timbers
Fulmar. Small sea bird met with off St. Kilda island and in Arctic Ocean.
Fumigation. Destruction of vermin, insects or bacteria by application of fumes, gases or
vapours.
Fundamental Formula. Equation cos a == cos b x cos c + cos A x sin b X sin c. Used in
navigational problems to connect latitude, altitude, declination and hour angle.
Funnel. Tubular erection over boilers to carry away products of combustion. 2. Copper
sheathing around head of topgallant masthead. Used for making a smooth surface for eyes of
rigging to rest on, and so preventing chafe.
Funnel Cloud. Upper and visible part of water vapour arising from sea to form a
waterspout.
Funnel Draught. Natural draught caused by convection and by top of funnel being
considerably higher than furnaces.
Funnel Net. Fishing net in form of a tapering tube.
Funnel Temperature. Temperature of exhaust gases in funnel. Usually between 600° and
700°F.
Furling. Gathering in a sail, or awning, and confining it with stops.
Furling in a Body. Harbour stowing of a sail. Sail is gathered in towards bunt and there
arranged in smooth and neat stowage, the yard being clearly denned.
Furling Lines. Name sometimes given to gaskets.
Furnace. That part of a boiler in which fuel is burnt. Can be internal or external.
Furniture. The essential fittings of a ship, such as masts, davits, derricks, winches, etc.
Furring. Double planking along a ship's side in way of her water-line to improve her
stability in 16th and 17th centuries.
Futtock. One of the pieces of timber forming a rib of a wood-built vessel.
Futtock Hoop. Iron band, near head of lowermast, that takes lower ends of futtock rigging.
Futtock Plank. Ceiling plank next to keelson.
Futtock Plate. Iron plate, at edge of lower top, to which deadeyes of topmast rigging are
secured. Upper ends of futtock shrouds are attached to its lower edge.
Futtock Shrouds. Short lengths of rope, wire or chain connecting futtock plate and lower
ends of topmast rigging to futtock hoop.
Futtock Staff/Stave. Length of rope, or band of wood or iron, to which the lower ends of
catharpins are secured.
Futtock Timbers. Middle futtocks in the built rib of a wooden vessel. Situated between
upper and lower futtocks.