04-11-2015, 13:33
F3.4 BAS shall be the vertical distance between mast datum point and lower point on the mast.
http://www.orc.org/rules/IMS%202015.pdf
http://www.orc.org/rules/IMS%202015.pdf
HOMO SAPIENS NON URINAT IN VENTUM - https://www.youtube.com/channel/UCsfJiueMjERgCFnc6lSlZpA
