On Deck - How Things Work - Part 3 - Air Circulation - Claire

The cowl vents or "dorade vents" let air in but keep the spray out. They can be pointed in any direction. They are made in pairs to let air come in and let air out. Often they are set with  one of the pair pointed forward for fresh air and one pointed aft. In heavy weather, they can be pointed away from incoming waves to minimize water capture.

Here is a good explanation of how they work:

 https://en.wikipedia.org/wiki/Dorade_box

We also have screw-on flat covers that one can put on the top instead of the cowl, and in the cabin to keep heat in.

The hatch covers require unsnapping on top, then unlocking down below.

rolle back the cover

 Choose the angle

 It's nice the window can go verticle for putting stuff down below.

 Usually the best is a slight angle to scoop air down below.

To fully air out the cabin, we open the front hatch and the back hatch for air to go in the front and out the back.

 - Claire