Compass Adjustment
Magnetic compass adjustment, correction and deviation cards for vessels of every size — from trailer-boats to cruise ships.

Maritime Masters is led by Mark Rothwell — Master Mariner, MSc, BSc, and a Fellow of the Royal Institute of Navigation and the Nautical Institute. Recent work spans superyachts, cruise ships and commercial vessels, from Auckland to Tahiti.
Practical, command-level support for owners, captains and operators — on the compass platform, on the bridge, and in the paperwork.
Magnetic compass adjustment, correction and deviation cards for vessels of every size — from trailer-boats to cruise ships.
Dedicated compass services and support for superyacht captains and agents, in New Zealand and across the Pacific.
Navigation assessments with bridge and wheelhouse behavioural competency training, and clear written reports.
HSWA and MOSS advice and support, aids to navigation, and structured pilot and PEC training plans.
Seafarer licence exams and bespoke maritime training, delivered by a Master Mariner.
Maritime Masters takes on superyachts, cruise ships and larger, more complex jobs across New Zealand and the Pacific — including travelling to the Islands for major work — while still covering smaller coastal and inshore vessels locally.
Yacht Sea Eagle
81 m three-masted sailing superyacht




Plus numerous smaller vessels, coastal and inshore — including trailer-boats.

Maritime Masters is the practice of Mark Rothwell, a Master Mariner with command-level experience at sea. He holds MSc and BSc degrees and is a Fellow of the Royal Institute of Navigation (FRIN) and a Fellow of the Nautical Institute (FNI).
When you call Maritime Masters, you deal directly with Mark — the person who does the work.
Call or email Mark Rothwell directly, or send an enquiry and he will come back to you.