Dr. Tums had a dream, to fly to the skies like a birdman.
That dream had actually been realized: His own design, a superb aerodynamic flying wing paired with the Osborne Group's small vector thruster and a brain-computer interface, allowed him to become a birdman, a birdman who flew with wings.
However, Osborne Group's electric propulsion system was something he could only refer to, his forte being the design of aerodynamically-based aircraft, including but not limited to civilian airplanes and helicopters.
But a vector thruster? It was unlikely for civilian equipment to use a device so costly and with such low energy efficiency—it would only be used on highly advanced aircraft.
The Shield Bureau's Quinjets were designed as such high-end combat aircraft: supersonic stealth fighters capable of vertical takeoff and hovering, able to perform air combat, bombing, and surveillance missions and were virtually all-purpose aerial units.
