| This was a perfectly flyable aircraft that was mishandled from 35,000 feet all the way down to the surface. |
| The organizers of the event have made clear that the airplane is barely flyable. |
| Still, the Army purchased a few aircraft from Boeing as test planes, and some insiders remained convinced that the aircraft was flyable. |
| The weather in the UK doesn't allow for many days of consistent flyable conditions. |
| There is nothing much worse than a bunch of hang glider pilots sitting around on a flyable day questioning the meaning of their lives. |
| However the terrain along this route involves higher passes than the other routes, and thus this route requires even fairer weather to be flyable. |
