Macduff Ship Design has been involved in the re-engining of many vessels producing evaluations between different powering proposals, specifications for the work for quotation purposes and structural drawings.

Macduff Ship Design has produced specifications and technical drawings for both the evaluation of proposed conversions and full conversion packages including: Project Management, Stability and Profiled Kits, for a wide variety of conversions from trawler - yacht to ferry - survey vessel.

Macduff Ship Design has been involved in the fitting of new deck machinery to a wide variety of vessels. This work has mainly been applied to offshore and fishing vessels but has also been carried out on ferries, workboats and aids to navigation service vessels. The work ranges from the fitting of small items of deck machinery to whole new deck arrangements including new machinery and accommodation areas.

Macduff Ship Design has been involved in the fitting of additional accommodation blocks to offshore vessels both as survivor modules and as additional crew and passenger accommodation. These projects have involved the fitting of bought in accommodation modules to the vessel or the complete design of new accommodation areas including structural and layout drawings.

Macduff Ship Design has produced drawing for additional and new casing structures and wheelhouses to vessels which improve crew comfort and visibility from the wheelhouse and hence crew safety. This would normally involve a full drawing package of structural and layout drawings, specification and project management. It may also involve the production of profiled kits which help to reduce down time, as vessels can continue working until the new structures are fabricated and ready to be fitted.

Macduff Ship Design has fitted new structures to vessels such as: bulbous bows, bilge keels, skegs, ballast keels and stability tanks to aid vessels performance, sea keeping ability and stability.