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Originally posted by THE_PROFESSIONAL
GPS: recalculating...but captain the GPS says turn hear....crrraaasssshhhhh
Originally posted by kawika
reply to post by Hellhound604
Here is a link, good photo essay
Bridge and Nav station
Looks like a 2 seater
Satellite positioning systems such as GPS are critical to navigation today. "GPS uses a framework of 24 U.S. military satellites orbiting the earth, and can provide accurate positioning data up to 3 feet or 1 meter. The EXPLORER, of course, has multiple GPS systems plus another system called GLOBAL NAVIGATION SYSTEM, or GLONASS. The GLONASS system uses a network of 17 Russian satellites that use the same type of technology as the GPS satellites. The combination of both systems gives the EXPLORER unprecedented coverage and sub-meter accuracy. . . . The EXPLORER also has the ability to receive DIFFERENTIAL CORRECTION SIGNALS from both land-based beacon stations and the satellite-based INMARSAT system."
An investigation by Italian prosecutors began yesterday. The consequences for a cruise industry worth billions of pounds could be devastating.
Investigators will want to know why the 1,000ft-long ship ran aground and how it began to sink in such a short time.
The Concordia was just two hours into its journey from a port near Rome to Savona in northern Italy when it crashed into rocks, ripping a 160ft-long hole in its hull, at about 9.30pm on Friday. It is not clear why the ship, with its sophisticated navigation equipment, did not detect the reef.
Before he was arrested, Captain Francesco Schettino said: “As we were navigating at cruise speed, we hit a rocky spur. According to the nautical chart, there should have been sufficient water underneath us...”
If this crew was following the channel, just as the computers and GPS tell them to I suspect something had changed on the sea floor. I don’t believe the satellites can continuously read the sea floor depths. Ships with side-scan sonar are needed to map out these safe routes. The earth is constantly changing due to movement of magma under ground. This movement is usually slow but eventually any uplift in rock could impact large sea vessels like the one mentioned here. I wonder how long it had been since this sea floor channel was last measured with side-scan sonar. There is an area in eastern Oregon, USA that has been seeing an 9.8 inch (25 cm) uplift of earth since 1996. The area that is uplifting is 230-square-miles (600-square-kilometers)...
It appears the ship steered toward shallow waters near the island of Giglio, but became unstable and capsized.
Originally posted by kawika
A symptom of the times. They use inexperienced people, because they work cheap. They do little or no training, because it is too expensive, and then wonder why these things happen.
The U.S. Coast Guard is evaluating the need for guidelines governing the use of autopilots following an incident aboard the cruise ship Norwegian Sky that sent passengers and objects flying.
PORT CANAVERAL — A glitch in the autopilot system on the Crown Princess likely caused the month-old cruise ship to tilt harshly to one side, injuring 240 passengers, marine experts said Wednesday.
There was a fire drill that required some and a briefing about departure that required some of them schedualed at the same time. I believe there was nobody at the helm. One passenger said the buoy marked a popular scubba diving area that he had been to in the past. I think they are covering up the fact that the auto pilot was attempting to keep us from running aground.
en.wikipedia.org...
On 22 November 2008, the Costa Concordia suffered damage to her bow when high winds over the Sicilian city of Palermo pushed the ship alongside its dock. There were no injuries and repairs started soon after.
She was the first ship in the Concordia class, with sisters Costa Serena, Costa Pacifica, Costa Favolosa, Costa Fascinosa and Carnival Splendor built for Carnival Cruise Lines. Costa Concordia entered service in July 2006 and was the largest ship to be built in Italy, at 114,500 GT.