NitroPlanes.com 64MM F-117 ARF Kit Build. In Build Video #1 I'm Showing What Comes In The Box. I've Chosen To Install A 70MM E-Flite Delta-V 15 69mm Electric Ducted Fan Unit And A BL15 Ducted Fan Motor, With A 3600Kv. Setup. This Setup Will Allow Me To Use A 3 Or 4 Cell Lipo Battery.