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Jun 22, 2016, 05:05 PM
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Data

Delta Ray brushless prop tests


Props to be tested as follows:

Electronics
- Hobbymate 2204 motor mounted to Delta Ray fairing
- Afro 20A Race Spec Mini ESCs, DR edition BLHeli firmware
- Modified OEM Delta Ray RX (oem ESCs removed, main cap upgraded)
. 3S 25C 1200mAh battery, freshly charged for each test

Propellors, 4 blades
- HQ 5x4x4

Propellors, 3 blades
- Gemfan 5030x3

Propellors, 2 blades
- Lantian 6045
- HQ C6x30
- Gemfan 6030
- HQ C5x30
- DTI 5030 (ghost)
Last edited by GottaZoom; Jun 23, 2016 at 01:01 PM.
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Jun 22, 2016, 05:10 PM
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Trying to measure thrust using a scale with the lightweight fairings was a fail. My only semi-successful attempt with the HQ 4 blade prop showed a little over 540g of thrust, but I suspect some error as I had to hold the fairing stable due to torque and lift.

Thrust measurements will be attempted again after the plane is built.
Jun 22, 2016, 06:04 PM
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Watts/Amps/Propellor - 1 motor, 3S
- 127 / 11 HQ 5x4 4-blade

- 074 / 06 Gemfan 5x3 3-blade

- 132 / 11 Lantian 6045

- 099 / 09 HQ C6x30

- 106 / 09 Gemfan 6030

- 077/ 06 HQ C5x30

- 068 / 06 DTI 5030 (ghost)

Watts/Amps/Propellor - 1 motor, 2S
- 054 / 06 Lantian 6045 (to be redone with fully charged battery)
Last edited by GottaZoom; Jun 23, 2016 at 12:45 PM.
Jun 22, 2016, 06:06 PM
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Candidates for testing


26 Jul 2016

* NEW props added to the list above.

Propellors, 6 blades
- Gemfan 5x4x6*

Propellors, 4 blades
- HQ 5x4x4

Propellors, 3 blades
- Gemfan 5030x3
- HQ 5x4x3*

Propellors, 2 blades
- Lantian 6045
- HQ C6x30
- Gemfan 6030
- HQ 5x4.5*
- HQ C5x30
- DTI 5030 (ghost)
Last edited by GottaZoom; Jul 27, 2016 at 11:32 AM.
Jul 27, 2016, 01:02 AM
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Prop tests - 2 motors combined


26 Jul 2016

Watts and Amps are peak readings from meter
Thrust was observed, read in pounds and converted to grams

Power system:
- Hobbymate 2204 motors
- HK Afro 20A Race Spec Mini ESCs, flashed with DR Edition of BLHeli firmware
- Throttle signals from Delta Ray RX

Many thanks to friend who loaned me their gear to do these tests.

Please note that the data below if offered for evaluation, it is not a suggestion that any measured power level is safe for these, or similar, motors. Please refer to your manufacturer's specifications.

Data

Thrust(lb) / Thrust (g) / Watts / Amps / Prop

3S 25C 1200mAh

1.61 / 730 / 241 / 21.4 / HQ 6x4.5x2 (*)
1.56 / 708 / 249 / 21.8 / Gemfan 5x4x6 (*)
1.21 / 549 / 184 / 16.3 / HQ 5x4x3
1.05/ 476 / 131 / 11.0 / Gemfan 5x3x3
1.03/ 467 / 130 / 10.9 / DTI 5x3x2

2S 20C 1500mAh

0.74 / 336 / 097 / 12.3 / Lantian 6x4.5x2
0.70 / 317 / 100 / 13.0 / Gemfan 5x4x6


(*) ESCs hit LVC? (default setting appears to be 3.4v/cell in DR modified BLHeli firmware)
Last edited by GottaZoom; Jul 27, 2016 at 10:28 AM.
Jul 27, 2016, 10:26 AM
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Prop tests, continued - 2 motors combined


27 Jul 2016

Same process and equipment as in post #5 above, however please note the Lantian prop rerun shows thrust was higher than yesterday. Not sure if this is due to the equipment reset, or atmosphere, or simply running throttle a bit longer. As a result the data is not combined.

Data

Thrust(lb) / Thrust (g) / Watts / Amps / Prop

3S 25C 1200mAh

1.56 / 708 / 161 / 13.9 / HQ C6x3x2
1.54 / 699 / 170 / 14.7 / GF 6030x2
1.52 / 689 / 222 / 19.6 / HQ 5x4x4(*)
1.23 / 558 / 170 / 14.4 / HQ 5x4.5x2

2S 20C 1500mAh

0.81 / 367 / 093 / 12.1 / Lantian 6x4.5x2
0.77 / 349 / 091 / 11.7 / HQ 5x4x4
0.72 / 327 / 065 / 08.4 / HQ C6x3x2
0.68 / 251 / 065 / 08.3 / GF 6030x2

(*) ESCs hit LVC? (default setting appears to be 3.4v/cell in DR modified BLHeli firmware)
Last edited by GottaZoom; Jul 28, 2016 at 12:19 PM.


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