Yukon1955

Thx

Anybody heard why the QM2 reversed course for a couple of hours off Nantucket today?

QM2 headed north at 20 kts.  Medical diversion?

22 hours ago, leyland1989 said:

 

Her azimuth thrusters (technically not Azipods since "Azipod" is a trademarked product by ABB) were one of a kind and the most powerful at the time but I believe ABB now also offer similarly rated Azipod for up to 22MW. 

Not saying it will be an easy drop-in replacement, but it's not impossible. 

Marine propulsion technology have also improved since 2003, the new Wärtsilä 46F are now rated up to 19.2 MW compared to QM2's 46C at 16.8 MW, with improved emissions and overhaul intervals to ~24,000 hrs. 
 

If there's a business case for it, those upgrades can certainly be done, especially if Carnival intends to keep it in service for the next 20 years. Especially with stricter emissions standards in the future.  

 

Speaking of emissions, the "yellow smoke" I observed from my last crossing was less than reassuring, was it just NOx rich exhaust? (the yellow hue was more pronounced irl than the picture)

 
 

HFO?

3 hours ago, sogne said:

Remember  that power cable to pod 

Please enlighten us on the power cable.  3 phase I presume.

Thanks Chief, I am fascinated by these machines.  Hoping they sort it out sooner than later.

58 minutes ago, chengkp75 said:

While there was probably a problem, I would take this statement with a few grains of salt.  If a generator had failed, and the available power was less, they would have slowed all of the azipods down the same amount (and there are 4 of them, not two), as slowing just one side down would require more steering effect from the azipods, taking more power away from straight ahead speed, therefore more drag and even less speed.

 

I would suspect more of a propulsion problem, than a power generation one.  They most likely had slowed or stopped on of the pods for maintenance.

Chief, I'm curious.  What type of failure can occur on an azipod that can be cured in a matter of minutes/ hours while underway?

See Chief, sunshine is the best disinfectant!  Now we are getting somewhere.  Not my imagination, not whales, not on time in both directions.

11 hours ago, Jim_P said:

I was on during the Australian leg of the world voyage in February this year, and can confirm that there was an unexpected power loss during that trip that left the ship drifting and without air-conditioning for about four hours in the middle of the night. The captain made an announcement in the morning that they had to turn everything off and reset the system. It does seem a little unusual that the exact same thing happened again so soon. 

I'm reminded of the old joke about Jaguar cars and Lucas Electrics, but I won't go there!

17 hours ago, *Miss G* said:

 

There are mandatory (zoned) and voluntary (when spotted) speed limitations to protect right whales. Are you sure it was a power failure?

Yes, all incidents could indeed be whale encounters.

Exactly, but in a complete information blackout, I find this very difficult to ascertain.

The wife and I love this ship, but I am very concerned about these power failures.  The internet says there have been 6 of them in recent years.  On the June 23 cruise to NYC, we saw the ship slow in mid ocean unexplainedly three times, followed by a late arrival.  Why can't this problem be fixed?