Saturday, October 26, 2013

Coaxial 10x60 Propellor, 3Cell, Benchmark

The benchmark voor the coaxial 10x60 prop is a little bit suprising. Although this prop didn't perform well in single configuration it turns out that in my coaxial setup it is as efficient as the 9x47 coaxial setup and more efficient then the 10x45 coaxial setup.

For my Y6 project I need 225 grams of thrust per motor. That is 450grams of thrust per pair. At 450 grams of thrust there is ~9% efficiency loss between the real benchmark and the theoretical value.

thrust

(grams)
10x60 Coaxial benchmark
(watt)
10x60 Coaxial theoretical
(watt)
10x60 pull
x2
(watt)
10x60 push
x2
(watt)
10x60 Coaxial
Theo-Bench
(%)
50 6,6 7,3 7,6 7 -10,6
100 12,7 13,2 13,8 12,6 -3,9
150 19 19,4 21,2 17,6 -2,1
200 26,5 25,8 27,8 23,8 2,6
250 33,2 32 34,6 29,4 3,6
300 41,4 38,2 41,4 35 7,7
350 49,9 44 47,8 40,2 11,8
400 56,8 51,7 55,6 47,8 9,0
450 65,6 58,8 62 55,6 10,4
500 72,7 66,4 70 62,8 8,7
550 81,7 73,8 78,2 69,4 9,7
600 91,4 81,6 85,8 77,4 10,7
650 100 90,1 95,2 85 9,9
700 109 98,3 103 93,6 9,8
750 118 106 111 101 10,2
800 125 116,1 122,2 110 7,1


(lower is better)

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