Sailboats

See:

 Professional Boatbuilder Magazine, #173, June July 2018 "Shape Shifters" pages 54- 68

                                              https://pbbackissues.advanced-pub.com/

                                              https://pbbackissues.advanced-pub.com/?issueID=173&pageID=58

In "Search of Adjustable Deadrise" Part 1 & 2 Professional Boatbuilder editor, Feb/ March & April / May 2023 publications 

https://www.proboat.com/

IBEX Sparks Night Tampa Fla         https://www.youtube.com/watch?v=9b-Y108l5wM 

boatdesignconcepts.com                 https://vimeo.com/manage/videos/405171639