Back in the early 70s, we heard a lot of reports about helicopter operations in the war being waged in the jungles of Vietnam. I couldn’t stop thinking about those agile aircraft. A helicopter would have taken perhaps only two hours to cover the laborious and dangerous eight-day trek along the Gorilla Path through Cameroon’s jungle. “It must be possible to use one of these for aid operations in third world countries, too,” I reflected. But the idea would still have to overcome two major hurdles.