Many thanks for the words of advise, it really helps a lot. I heed the advise of not going too big on the drone as a first timer.
I have chosen a 450mm frame size, negotiating between being small and large quad. This frame has the following recommended components:
a) 22-28mm motors with 800-1200Kv
b) 15-30Amp ESC (recommend 30A OPTO)
c) 8x4-10x4.5 Props (2CW and 2CCW)
d) Multi-Rotor control board (recommend KK2.1)
e) 1500-2200mAH 3s 11.1v Lipoly battery
based on the frame I figured I can work on 9x4 props (within recommended range by frame), I will aim for two blade as these are said to be more efficient than three blade. I can then have room to enlarge if motor selection issues are encountered.
I have a weight of 1210g, thus total thrust of 3630g. this meas each motor should give 907.5g
So the challenge i meet now is that the motor thrust data tables I am looking at are all around 5-6 in efficiency. these are cobra motors so far im looking at. These are cobra motors, 6 of these that I am looking at. I start with the propeller, then the thrust, then I end with the efficiency of the motor.
Please advise if I am on track, as I need to select the best motor-propeller combination, with an efficient motor?
A 10-inch prop gives me lesser thrust (approx 726g), with efficiency of 7.05. A 9-inch prop gives me 1068g of thrust, but at 5.41 efficiency? This is for the same motor. This scenario is what makes me ask the above question (1.)