inspection of the aircraft, and not an approval process). Once flying, the main operating restriction is that it can't be used for compensation or hire. The builder can also get a "repairman's certificate" that allows him or her to perform all the maintenance on that particular aircraft. ...
and in the five years he’d been the department head, his research was paused. In the present, his aim has been to build a new team for his lab and bring some of the old projects, including my eukaryotic cell model and the Giant Walkthrough Brain, back ...