ORIGINAL: Flexserve

Ok here is a stock config:
http://www.bphobbies.com/view.asp?id...49&pid=U834468 <== these motors fit STOCK
http://www.bphobbies.com/view.asp?id...5&pid=B3905413 <== Replace impeller hub
http://www.bphobbies.com/view.asp?id...5&pid=NGWSV010 <== Replace Impeller
http://www.nitroplanes.com/10b12-74v15c1300mah.html <== Batteries (you need 2)
http://www.nitroplanes.com/40aelbrspcoe.html <== ESC 25 Amp (need 2)

Done. Mine Flies like a dream

You can fit most 20mm motors of choice with this into the A-10 stock ducting:
http://www.bphobbies.com/view.asp?id...69&pid=V743117

Just keep a motor with a 2mm shaft and 24mm and under case size (diameter)..also KV rating of 4000kv and higher

Fastest way is to throw 2 esc in fuselage under where wings connect, replace the nacelles with modified ones, throw 2 batteries in box and done

1 battery per esc (or in other words 1 battery per motor)!!! dont wire batteries together!