All,
Sorry for posting a response two months after the thread started, but my feeble excuse is I was just now able to to log onto this forum, as I'm on my way back to the United States from Antarctica aboard, you guessed it, POLAR STAR.
As you may know by now, the rescue of the Russian ship (and the Chinese) did not actually occur, as the winds shifted easing the pressure of the ice around both ships. That said, at the request of both the Russian and Chinese government we were indeed enroute to their aid (and registered up to 55 degree rolls crossing the southern ocean). If the rescue had indeed been needed, yes, the U.S. would have asked for some cost reimbursement from both.
Of the three icebreakers, POLAR STAR, POLAR SEA, and HEALY, both the POLAR STAR and HEALY are currently operational, POLAR SEA has been laid up due to budget restrictions.
On a side note, if I need to conduct heavy icebreaking on all three Main Gas Turbines, I can burn between 60,000 - 70,000 gallons of diesel a day. On one of my favorite days (not this year), we burned 70,000 gallons to go almost 3 miles...but that was through ice 20 - 24 feet thick.
Thanks,
George Pellissier