2014 UPGRADE: concealed hinges and handles!!
The portlights 064P have a opening towards the outside of the boat and were designed to be "embedded" in the glazing fixed so as not to be visible when closed. The use of composite and polymethyl makes them a high quality product, although with costs comparable to the old aluminum lens cover. With this type of door, even after an intense thunderstorm, you can open immediately without annoying streams of water entering into the boat.
Indeed, in case of rain weak, it is possible to keep open portlights to limit the humidity inside. When you navigate instead must be kept closed.