I have been building my first quad, and when I have gone to test it, it flips on takeoff.
I have the below specs:
4 x DYS 2830-14 750kv
4 x 14x4.7 props (cw & ccw)
Hobbypower simonk 30a esc w/ bec 490mhz
Turnigy 30-40c 1000mah 4.s (testing battery)