This document is not public; it is our response to your LOI as being ostensibly distributive. We have made a detailed analysis on the SAR requirements of the Canadian nation. We discovered that there are three different requirements. We are speaking about fixed-wing SAR as a monolithic requirement, but that is not the situation. You have three different requirements: search over water, search over mountains, and long-distance missions.
For search over mountains, you need to have low-speed capability. You design the wings to be lower-speed or higher-speed. You design for the capability of being able to fly under 150 knots, which is extremely good when you are flying the missions you are doing today with the Buffalo aircraft.
For searching over the seas, the key factor is the mission system, the electronics you have on board. When you are searching over waters, you need strong radar and strong electricals.
When you are traveling long distance, speed could be very important, to have higher-speed instead of lower-speed capabilities. But by being 20 knots faster you gain only minutes. So really, if you want to drastically improve your capabilities in rescue time, you should be thinking of proximity more than speed.