Definition of mould loft in English:

mould loft

(US mold loft)

noun

Boatbuilding Shipbuilding
  • And (formerly) Aeronautics, a building or room containing a floor area on which a design is marked out in full size, used for making templates and patterns for the frame of the vessel or aircraft.

Origin

Early 18th century; earliest use found in William Sutherland (fl. 1711–1717).