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ChrisM:Sorry, no idea, but just curious why you want to do it? It adds a HUGE amount of risk and task loading that, unless there is a specific purpose (SAR), it's really not worth it, IMHO
BigJetDriver:Sorry, but the risk is no more than that with a standard mask. Task loading is nil, unless you have to ditch it, and then again, no more than what you would do with a normal mask to R&R it.
Call John Hott at Ocean Technology Systems.