Check out the 1985/86 version of the O'28
Derek, Oday made these modifications (opening ports and hatch aft of the mast)in mid '84 thru the end of the run in'86. My '85 has them and ventilation at anchor is really good. For pictures go to Yachtworld.com and look up the O'28s for sale '84 and later and you will see what I mean. PM
