Boeing has selected the Bombardier Challenger 605 business jet to be the platform for its maritime surveillance aircraft (MSA) offering. This program was announced in 2012 as a cheaper alternative to Boeing’s high-spec P-8 Poseidon maritime patroller that is on show here at the Dubai Airshow. However, the MSA mission suite draws heavily on the technology developed for the P-8, albeit sized for a business jet application. At the time of the MSA launch the platform had not been selected. 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.