JRG

I think you really muffed this one up chengkp75. Simply speeding up, or increasing the RPMS to add more horsepower to the screws to offset the barnacles is the worst possible answer you could have come up with. This is essentially a cargo industry solution to a cruising problem. Cheng, the cruise industry has to account for passengers and future bookings. Simply trying to outrun the barnacles just does not work as a viable solution and is very SHORTSIGHTED for an engineer of your qualifications to not see the cruising angle here. Sometimes it is possible to be too close to the Trees for the Forest and this is an example. Celebrity is now doing the right thing stopping to get the barnacles taken care of. Redlining the engine was never a good solution.

Back to the topic at hand, I would not play the guessing game here. We've had one first hand experience with medical emergencies with our kids, and unfortunately the medical staff wasn't really 'threre' for us when it seems like they could have been. This was back in the day though and things are different now, so for Covid remedies that might be available, who really knows?