Sector light Authorities). For example, the United States uses a signalling stereotype which is the opposite of Europe. In USA, the red light indicates the starboard side of the channel for harbour bound vessels, while the green light indicates the port side of the same channel. An expression to remind of this is "red right returning". An example of a sector light is the light of the Fisgard Lighthouse in British Columbia. The lighthouse as built to guide ships through the entrance of Esquimalt harbour. The white sector is an isophase light of 2s from 322° to 195°. If the ship sees
Sinking of the RMS Lusitania in boiler room no. 1, but rather in the high-pressure steam lines to the turbines. The original torpedo damage alone, striking the ship on the starboard coal bunker of boiler room no. 1, would probably have sunk the ship without a second explosion. This first blast was enough to cause, on its own, serious off-centre flooding, although the sinking would possibly have been slower. The deficiencies of the ship's original watertight bulkhead design exacerbated the situation, as did the many portholes which had been left open for ventilation. The wreck of "Lusitania" lies on her starboard side at an approximately