I'd start here:
www.scottipc.com
While NAT flying isn't rocket science, there are LOTS of ways to mess things up. A good, thorough Int'l Procedures Course is mandatory (in my opinion). Scott does a GREAT job.
I'm sure the Lear 45 is a very capable plane (I've never flown one) but it certainly wasn't designed with regular oceanic ops in mind. That being said, this trip is absolutely doable with proper planning. Do you normally use a flight planning service? Universal? ARINC Direct? If not, I'd get in touch with them and get the ball rolling. For your first trip, I'd use their services to the fullest extent. Their local agents can help secure parking, catering, etc.
Read and re-read every part of the Atlantic Orientation Chart. The back panels have TONS of good info.
Best of luck! Dublin is one of my favorite cities over there. Great people. And the Guinness ain't half bad
Treetop
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