I made this 310 for gopro 3 onboard.
Frame:
310mm X diagonale
2x arms 10 x 10 x 260mm
1 center plate 7.5 x 0.5 x 260mm
4 nuts and bolts, 3M fiber glass reinforced tape, velcro and nylon clamps.
FC: openpilot CC3D
Tx/Rx 2.4 mode PPM - satellite Spektrum
Motors: Sunnysky 2204 2300KV
ESC: Lumenier 12 amp ESC with SimonK Firmware (N-FET)
Props: HQ Prop 5x4
LiPo: nanotech 1A 25C for tests
FPV: gopro 3+, vTx vRx Lawmate 1.2
520g
First tests last we, first crash (radio cut) = 1 prop, second = 2 props.