h Hi guys I am operating an outdoor wind tunnel used for skydiving simulation It is running a shortened 3 blade dc3 propeller (diameter 3.25m) powered by a cummins N14 diesel engine with pittsburgh unit producing approx 600hp. The prop is spinning in a shroud and then pushing air through a reducing funnel to 2.3m It is running through a roadrunner gea Show More...
h Hi guys I am operating an outdoor wind tunnel used for skydiving simulation It is running a shortened 3 blade dc3 propeller (diameter 3.25m) powered by a cummins N14 diesel engine with pittsburgh unit producing approx 600hp. The prop is spinning in a shroud and then pushing air through a reducing funnel to 2.3m It is running through a roadrunner gearbox in 3rd gear with reduction of 4.57 and a differential with 3.59 reduction resulting in a .79 engine rpm to blade rpm reduction. It operates at approx 1900 engine revs and 1500 blade rpm This setup is very noisy and i am looking at ways to make it more efficient and quieter, would like to achieve 215km h of airspeed in the column Are you able to manufacture a blade or fan that would be suitable
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