An aerospace engineer once told me that when going on a family holiday he would book a flight only if it used a four-engine aircraft.

It's a tough call for air-safety people; only an airline or aerospace engineer can join that debate.

The aerospace engineer, wearing a suit reminiscent of a flying squirrel, was recorded at 249mph before opening his parachute to land safely.

Now finished, the room features two portals, made by a local aerospace engineer, which fold away using carbon fiber composite materials.

He was also an aerospace engineer, naval aviator, test pilot, and university professor.