“Very amicable and friendly” was Paul Doherty’s recollection of his first meeting with two of Ireland’s most successful entrepreneurs, Tommy Kelly of ESW and Barry English of Winthrop Engineering.  It was February 2024 and Doherty, an aviation finance stalwart who had previously worked for Aer Lingus and lessor Aercap, had just been promoted to managing director of aircraft management firm Acass Ireland. He wanted to check in with clients, including the two businessmen. In October 2022 English and Kelly had struck a deal with the Shannon-based operator to run the Cessna private jet they had acquired. To defray costs, the…