Thank you for replay. Unfortunately ecalc link is not working :(
My planned buid is:
Tarot 650 IronMan frame
PixHawk flight controller (clone)
http://www.aliexpress.com/item/Pixpilot-v2-4-6-Pixhawk-PX4-open-hardware-Autopilot-Flight-Controller-I2C-RGB-PPM-Neo-M8N/32316396160.html
4114 size 320...