I just ran the stock TT 550 motor in my Dyno.
I used 5 props for comparison and the voltage was 11.5 from my 3 cell Lipo.
I will list the props from least to most output. That is higher thrust given a higher current load.
The lowest was actually the scimitar after market TT prop.
It was 2.4 amps.
The next was the stock TT prop.
It was 3.0 amps.
I tried a three blade 45mm next.
It was 3.6 amps.
I tried a three blade 55mm next.
It was 4.3 amps.
The highest was the fan prop I am using on mine.(un shrouded)
It was 4.5 amps.
I did not have one of the 45mm four blade Rabosche props the guys in my group are using to test.
It is a fairly low powered motor but has good torque.
Here are the different props.