Absolutely. And not even that, we will first make sure that it is safe in earth before even attempting to put it in a real aircraft. Maybe we won’t put test dummies like in Mythbusters, but would probably first tested in a RC UAV with no people. Depending on how that goes, you go ahead and scale it up and go for a full fly test. Also, aircraft regulations are very strict and you don’t get permission to fly unless you prove that your design is very very safe!