>>1182812>>1182926I'll correct my statement here, I found a higher res version of your image and it looks like it's a temporary hazard light that has been attached to the keel.
Nevertheless, making broad statements about all monohulls and using a highly specialized design (pic related is the same boat, hardly a conventional hull) as your example doesn't really work. This thing is probably twice as wide as a conventional sailboat of this size.
