Charter aviation (at least for human passengers) is usually associated with two endeavors – work, and play. The smaller jets popularized by corporate clients and the airports specializing in them are widely described as comprising “business” aviation; however, no few customers hire them instead for leisure travel – sporting events, extreme adventures, family getaways and more. But, while jobs and vacations combined drive a lot of private jet travel, there is another growing category boosting demand – air ambulance charter.