: I've been a ship friend much of my life, but I
: have a question. What are those circle type
: things on the bridge windows, within the
: windows themself. I have noticed them in
: pictures of both navy and civilian ships.
: The circles are usually 40-50 cm in width;
: sometimes larger. They look like they have a
: small handle at the center. Are they meant
: to clean the window in rough weather?
: Something else?
: Best wishes.