I started this series of Advanced Seamanship Notes (Episodes 115-117) to bring to light specific areas of sailing knowledge which are A. difficult to locate in sailing resources on-line or off, and B. provided by a Mariner who is recognizably a ’Master’ - in the true sense of the word.  Captain J H Illingworth was considered the ’father of offshore sailing & racing’ in postwar Britain. He started the Junior Offshore Group in the UK, acted as Commodore for the Royal Ocean Racing Club , but also was the instigator of the Sydney to Hobart Race in Australia, in 1945. That alone could be pedigree enough for my purposes- but add to that the fact that he was also a decorated submarine Captain in WWII, and suddenly you may realize, as I did; that what Capt. Illingworth did not know about waves and the upper layers of the ocean and their effect on a sailing boat is little more than chafe on the wind. Come take a knee, as I have, at the hand of a Master Mariner- and let’s learn some more about Ocean Racing Strategy Youtube Video Episode - Available 8 hours after the episode appears on podcast streams Come watch the carnage in person! https://youtube.com/live/FVFp0SCwzJA?feature=share The Mariner’s Library Podcast If you would like to listen to fantastic stories of sailors in small vessels taking on the ocean in the last 150 years, all selected & read by me an actual sailor, check out the ’Mariner’s Library’. https://podcasts.apple.com/gb/podcast/the-mariners-library/id1710666955 Finally, to support the production of this material please consider heading over to Patreon. https://www.patreon.com/themariner Edward William Insurance. Please visit https://www.edwardwilliam.com/boat-insurance/proposal-form?pid=ORT Remember to quote the code MARINER10  to receive 10% off your premium.