The recommended components for the EDF power system are as follows. I will also be testing the BAe Hawk with a 4s LiPo pack.
[ul][*] E-flite [link=http://www.horizonhobby.com/Products/Default.aspx?ProdID=EFLDF15]Delta-V 15[/link] 69mm EDF[*] E-flite [link=http://www.horizonhobby.com/Products/Default.aspx?ProdID=EFLM3015DF]BL 15[/link] Ducted Fan Motor[*] E-flite [link=http://www.horizonhobby.com/Products/Default.aspx?ProdID=EFLA1060]60-amp Pro[/link] Brushless ESC[*] E-flite [link=http://www.horizonhobby.com/Products/Default.aspx?ProdID=EFLB32003S]3200mAh 3s 11.1V 20C[/link] Lipo Pack
[/ul]
The assembly starts by attaching the center body fairing to the motor and then the motor to the DF unit. Note the longer length of the BL 15 ducted fan motor wires to make the installation easier. The center body fairing helps reduce drag.

The factory-balanced 5-blade rotor is installed after first pressing the collet adapter onto the motor shaft. It is then secured in place by the aluminum spinner. I used an L-wrench (or hex wrench) to help tighten it properly.

The overall design of this 70mm EDF unit is the best I have seen to date. The longer motor wires, balanced rotor, pre-soldered motor connectors, and center body fairing are all excellent design details by E-flite.