Hi
Can someone explain to me why the Wren XL 200 has a bigger case diameter than its competitors yet puts out less max thrust at a higher RPM. My basic understanding of Turbine physics says that the bigger the mass flow of air then the more thrust. So the Wren with the bigger compressor should be out performing all of them. With the Wren competitors now pushing or exceeding 40lb thrust is the XL 200 in danger of being side lined?

M
( ps I am a big Wren fan I own one already and I will be purchasing another in the new year but the above question does bug me)