That pic makes the K-45 look a lot larger in diameter than the 44 whereas there's only 1mm difference. What are the actual cone exit diameters? If the K-45's exit dia is a lot bigger, what will that do to the exhaust velocity? If the K-45's exhaust velocity is significantly lower as a result of the bigger exit area, will that mean that the K-45's top speed will be slower than that of the 44 in the same airframe?