I wonder, have GE brought their RTA anywhere closer to the real world? If they did, it will be very interesting to look at. On the paper, as it said, it is a

I wonder, have GE brought their RTA anywhere closer to the real world? If they did, it will be very interesting to look at. On the paper, as it said, it is a variable geometry engine where the bypass ratio can be changed depending in the air speed. The fan increases in size closer to the ground, and cruise speeds, and shrinks when flying higher, and faster.