I maiden my EF-16 yesterday. I had a big problem to get the plane straight, the ailerons where not correct alaigned (fabric error), so i had to do a lot of trimming to correct this.
But know it's correct, the lipo is almost in the end position of the cockpit.
I leave the end of the pipe at his length, the tube is not as wide as the fan, so it should blast more air in this position as when i make the pipe smaller (wider diameter).





[link=http://ymmv8q.bay.livefilestore.com/y1pcX4G8tnk82KP_1r7hIC01_c91cDZXLRDvLKe_pRyyWSFZo5 feUCOU0uxpa_0iW5f-YAL3G0EdHM/Phase%203%20EF-16%20First%20Flight.wmv?download]Here's also a short movie of it.[/link]