Most of the money is from private donors, some of it is from the government, though that is pretty common -lots of governments give out grants and funding to pr

Most of the money is from private donors, some of it is from the government, though that is pretty common -lots of governments give out grants and funding to private organizations for the purpose of cultivating ingenuity or developing certain industries. As I understand it the major help, and where it had a major advantage on other similar attempts, was by access to advance research and testing facilities of avionics in the IAI (a quasi government company in charge of commercial and military development of avionics). Especially wind tunnels and similar simulators. That being said, it is still a very much private orginazion