I would look very hard at what your mission requirements will be before selecting an airframe. If you are just doing video for situational awareness and can hand launch a lightweight aiframe then go for something like a Skywalker. If you are wishing to get into high resolution mapping/searching/image analysis then you'll need something a bit more robust and rugged that can carry the weight. I am biased towards flying wings because they take so much abuse and only have three moving parts. Two servos and one motor. After that, you need to find one that will best protect the equipment you intend to fly. We have flown in 29 states and 4 countries and the Spectra has ALWAYS completed the mission. It may have gotten "retired" shortly thereafter, but the most important part in SAR is making that recovery - especially when a life is on the line.