boeing boy ryanair plan and i emphasise plan to use a 737 900 series aircraft which from my boeing source has a higher mtow and longer range.As ryanair is an irish airline they intend to operate a no frills service from dub or snn to an airport called hankok in ny.This is a secondary airport and is easy to get in and out of.It has a high speed link to downtown ny,this is ryanairs type of airport cheap and cheerful,for 130 pounds you pay for what you get point a to b thats it.It is working for them everywhere else so why not here.Continental airlines operate a 757 from jfk to snn daily which has almost identical performance as a 737 900 series aircraft and the 900 series cruises faster so i hope this clarifys your query.