Combination marker buoy/rescue sling. The buoy is attached to the railing with hook-and-loop strips and can be operated by the pilot with one hand. Pulling the handle causes the buoy to fall into the water and inflate instantly. The tip of the buoy is around 2 m above the water, along with a drift anchor, whistle and reflective strips. ISAF Special Regulations, item 4.22 a) and b) are satisfied fully.