Hi,
BJ put up a lot of detailed comments on his blog site: http://rcone.kr/board/index.html?id=bjair1&no=110


here's some specific data

Weight

ARC weight 2038g (landing gear, wheel, pants,tail gear all included)

Accessories 1230g (neumotor, apc 20*15, esc, servo, rx battery,EX cords)

Others 272g (covers, Battery bed , rods , horns etc)

Battery 4500mah 10S 1240.3g

Flying 4780 g