A quick full static thrust test of the Cobra 2204 2300kv, RCX 2205 2350kv and RTFQ 2206 2200kv.
All tests on DAL 5045 Bullnose props and Rotorgeeks 20A esc with blheli 14.0.
Rig has been built for max accuracy and to get a direct energy transfer right to the weight instead of using angles which would result in energy loss, also the prop is on a height to avoid the ground effect.
Results: (approx)
RCX: 860g @ 27.6a
Cobra: 895g @ 28.6a
RTFQ: 1025g @ 28.8a