Boeing selected the Bombardier Challenger 605 to be the platform for its maritime surveillance aircraft (MSA) offering. This program was announced last year as a less expensive alternative to Boeing’s high-spec P-8 Poseidon maritime patroller. The MSA mission suite draws heavily on the technology developed for the P-8, albeit sized for a business jet. Field Aviation in Canada is currently modifying a Boeing-owned Challenger 604 to act as an MSA demonstrator, which should appear next year. Field will also undertake the production modifications of the Challenger 605.