I'm using NACA inlets on the jet for cooling. (about 8 inches long, to equate to about 3 sq. in. of intake area) I'm using two. (one on each side) If you want to make your own, the info is at
http://naca.larc.nasa.gov/reports/19...gi?thumbnail15
By the way, Merry Christmas, Ben.
http://homepage.mac.com/mikejames/rc...7_06_hover.mov