More large-scale activity at BiFab last week signalled the latest stage of work in a major contract for the Methil fabrication yard.
A rising morning tide on Friday saw the transfer of a topside on to a transportation barge.
The structure is set to join the 8200-tonne jacket for the Solan field, which was shipped out earlier this month on behalf of client Premier Oil.
The topside, which is 97 metres long, 37 metres wide and 42 metres in height, is set to depart tomorrow (Thursday) for the oilfield, which is west of the Shetland Islands.
The jacket, which is around 160 metres long, is due to sit on a sub-sea tank in 135 metres of water and will support the topside, which will provide processing and accommodation during the oil extraction operation.
The topside has taken just over two years to complete and is expected to take four days to reach the Solan field, which is located around 130 km west of Sumburgh, at the southern-most tip of Shetland.