More boats, maybe a repeat I think

[CaptJJ]

What's with the cooling ducts? Conversion?
http://athensga.craigslist.org/boa/850838993.html

http://miami.craigslist.org/brw/boa/851221279.html

http://providence.craigslist.org/boa/850892273.html

http://eastnc.craigslist.org/boa/851387077.html