So now even a version
So here the animation ramjet engines between the wings in a spoon effect, which is about 9 times increase input speed .. Pipes of course without turbines, such as SR 71, and, so to eye with 250 MW of getting So, yes, the set of a diameter of 30 meters, having the 250 MW of power, he would have 12 pieces of such pipes since SR71, visible starter pneumatic boot, and the number 2 units would give so much energy around, a small nuclear power plant Only with the size of the power plant, even coal, consumed for own use 50 MW (high pressure pumps, blowers and fans, etc.). Here only the minimum energy for the fuel supply system, expressed in kilowatts ..
And the cost of investment that air football field, probably will be significantly smaller.
It's to improve the imagination, what I'm saying.
Well, here we have any fuel - coal dust, gas, oil.