Coaxial 10x45 + 11x47 Propellor, 3Cell, Benchmark

In this benchmark I have tested a 1045+1147 setup and a 1147+1045. The conclusion is that mounting the largest prop on the top motor causes the most efficiency loss. So it is better to keep the smallest prop on top and the largest prop on the bottom motor. But in my case this is less efficient then mount the same props with same size and same pitch.

thrust (grams)	10x45+11x47 benchmark (watt)	10x45+11x47  theoretical (watt)	11x47+10x45  benchmark (watt)	11x47+10x45  theoretical (watt)
50	5,4	5,6	6,4	5,3
100	11,1	10,5	12,6	9,7
150	18	16,2	19,5	15,1
200	25	21,7	27	20,6
250	33,1	27,6	35,2	26,8
300	41,8	34	44	32,9
350	51,7	40,4	52,2	39,3
400	59,8	47,8	62	46,3
450	68,7	54,4	72,3	53,9
500	77,2	62,7	83	62,2
550	86,1	71,3	95	70,2
600	97,6	79,8	106	79,3
650	109	89,9	116	87,5
700	119,3	100	125,9	96,2
750	130,8	106,7	135,9	103,3
800	142	117,3	147	113,7

(lower is better)