I doubted I’d have to look the distance up myself. ??
Project appears from the limited info to be a hobby/PR endeavor, but it’s cleverly meeting the stated goal as most every hospital doing organ transplants is bound to be within 21 miles of an airport, and they have helipads.
Not sure what the carbon ROI will be since they are bound to be putting a lot of work in for a somewhat small application. Still, if they can get 30 to 45 minutes of powered operation, there’s a real market for that.