Rick, in my extensive nautical experience (4-5 years in the sea cadets and the occasional sail crewing for my late father-in-law!)I never heard anyone say "Aaargh me hearties", or even "Aaargh, Jim, lad" which is Tony Hancock doing Robert Newton as Long John Silver!
The most often heard word in the British navy begins with f and is used alternately with any other word and substitutes for every adjective and adverb and most nouns!
RtS (let's go down to Bimini to get some Jamaica rum, Cp'n Greenhaus, sir)