Marine 1A has been replaced by one of the new 33' vessels. Marine 6's vessel seems to the fastest in the new fleet followed by the 33's with their triple engines. The 33's are good for getting into close to land while to 66' vessel can be used for covering the nearby ocean. It can dock at Marine # 3 quarters, but I am not sure of Marine 8 or even 4. They might need a new dock. Marine 8 uses a commerical facility while 4 is at a gvt location. Remember that the spare is the Fire boat Smith & that's a 105' vessel that can pump 8,000 gpm, & is slow moving, dating back to the early 1960's. Only time will tell.