21. A full set of IMCO navigation lights . 22. In later times a navigation light used to be lit at the top of the stair turret. 23. The Maranahata was running without navigation lights . 24. Aviation light signals are used in the case of a landing or navigation lights during night time. 25. It lies 1.5 miles north north west of Ru Bornesketaig and is marked by a navigation light . 26. Navigation lights used for the heavy barge traffic were being changed at the time of the report.27. The navigation lights were also upgraded. 28. Defense witnesses that included Navy researchers said the light was a navigation light common to all cargo vessels. 29. Meanwhile, the Eagle River Light was decommissioned and sold in 1908, leaving no navigation light in the area. 30. He tested various concepts of wave-energy devices at sea, with several hundred units used to power navigation lights .
