Swedish lightships may exhibit the following signals if a vessel is observed standing into danger. A gun may be fired, the Morse letter "U" may be made by siren or flashing light, or the International Code flag "U" is displayed.
Lightships out of position discontinue their characteristic lights and fog signals. If possible, they will lower their day-marks and make the following signals:
1. By day—Two black balls, one forward and one aft. Red flags may be substituted, if the balls constitute the normal daymark .The International Code Signal "LO" is also shown.
2. By night—Two red lights, one forward and one aft. Also two flare-up lights, one white and one red shown simultaneously every 15 minutes. If the flare-ups are not available, a red and a white light will be shown.
Was this article helpful?
Lets start by identifying what exactly certain boats are. Sometimes the terminology can get lost on beginners, so well look at some of the most common boats and what theyre called. These boats are exactly what the name implies. They are meant to be used for fishing. Most fishing boats are powered by outboard motors, and many also have a trolling motor mounted on the bow. Bass boats can be made of aluminium or fibreglass.