Hello Petr,
Wing(with two HS-35HD)=142.3g Fuselage=120.7g
Thanks for Sanwa 3.7v compatible Rx(without case and shrink packed), I could adopt 3.7V 520mAh Lipo battery.
The battery is originally for Hitec Solo pro 328 helicopters.
It is very slim(59*18*6mm) and the weight is around 14grams.
Nose ballast around 5grams is needed.
However, I feel more comfortable when I fly it with 15grams C.G.ballast :-)
Regards,
Yasu