Because the Pterosaur Drone had a length of 21 meters.
In the command room of the military base, a soldier was watching the equipment. At the same time, he kept reporting, "The flying height of the Pterosaur Drone is 3,000 meters and its flying speed is 200, 230, 260 meters..."
The flying speed of the drone was constantly increasing.
Allen sat beside the computer and watched the flight of the drone on the screen.
After a while, the drone flew to the sky of 5,000 meters.
Allen moved the mouse and the computer screen showed the view of the drone.
He could see what was happening from the camera below the drone.
He looked at the ground at 5,000 meters high in the sky, there was only a wide and boundless picture.
His vision was very broad, and he could see everything below.
Soon, the military base in the desert had been transferred control to Rhett Airport.
Now, it was the controller of Rhett Airport who was controlling the drone.