As for Lewis Page's semi-hysterical, over-exaggerated rant about melting decks (typical for him), here is something from 3 months ago...
Osprey deployment a learning experience - MarineCorpsTimes.com
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Here is the new procedure:
On LHA and LHD ships, NATOPS procedures dictate that MV-22s suspend one of its two nacelles over the water while sitting on deck with the engines turning. If an Osprey remains on deck with its engines operating for more than 10 minutes, the engine over the deck should be reduced towards idle, and if the crew expects to sit for more than 90 minutes the engine over the deck should be shut down. Typically, if a crew knows they will be on spot for more than 30 minutes they will shut down the over deck engine.
10 minutes at moderate power or 90 minutes at idle indicates it wasn't much of a problem on the large amphibs.
The smaller ones (LPD/LSD) had more of a problem, as they had been built with thinner deck plates... again a simple solution was found: portable heat shields.
photo cutline 1:
Crewmembers from USS Fort McHenry (LSD 43) and Marines from MV-22 squadron VMM-263 examine a heat shield developed at Lakehurst prior to positioning it under the engine nacelle of an MV-22 Osprey. In a major joint effort, NAVAIR engineers from Lakehurst and Patuxent River, MD, worked with their NAVSEA counterparts to develop an effective solution to counteract deck heat buildup from MV-22 engine exhaust. Tests show the heat shields to be an effective barrier, keeping deck temperatures within acceptable levels. The joint engineering effort insured that VMM-263 will be able to operate the MV-22 off all the amphibious assault ships when it deployed as part of the 22nd Marine Expeditionary Unit. It will also be the first operational shipboard deployment for the unique tilt-rotor aircraft.
NAVSEA is currently running a program to develop and field a permanent solution... with a desired start for fitting (whatever they come up with) to ships of 2014.
Since MV-22s are currently deploying aboard larger amphibs (and landing/taking off from smaller ones), then it appears that running with the temporary procedures and portable heat shield
for the next 5 years is satisfactory!