• Emax ECOII 3515 brushless motor with threaded shaft, top vented bell and attached wires
  • Emax multirotor motor box with ECOII 3515 motor, mounting screws, nut and washers included
  • Emax ECOII 3515 Brushless Motor side view showing ECOII Series label and motor lead wire
  • Brushless motor angled side view with wiring and heat-shrink lead, showing reflective can finish
  • Bottom view showing motor base and exposed copper windings with mounting plate and screws
  • ECOII motor side view with printed model marking “3515” and top bell vents with copper windings
  • Top-down view of vented motor bell showing copper windings and threaded shaft detail
  • Angled top view of motor with coiled lead wires, showing vented bell design and shaft length
  • Front view of EMAX motor can with logo, threaded shaft centered and wiring trailing behind
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Emax ECOII 3515 Brushless Motor for FPV Racing Drone - 450KV / 550KV / 650KV / 880KV, 41.7x52.15mm, 5mm

Emax ECOII 3515 Brushless Motor for FPV Racing Drone - 450KV / 550KV / 650KV / 880KV, 41.7x52.15mm, 5mm

Emax

$82.59 USD
$82.59 USD
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Overview

Emax ECOII 3515 is a brushless motor for FPV racing drone builds, offered in 450KV / 550KV / 650KV / 880KV options. The motor uses a 12N14P framework, a 5mm shaft, and 18AWG 300mm leads, with mounting and overall dimensions provided below.

Key Features

  • Multiple KV options: 450KV, 550KV, 650KV, 880KV
  • Framework: 12N14P
  • 5mm bearing shaft
  • 18AWG, 300mm motor lead
  • Recommended propeller range (per variant table): 10"-11" (450KV), 10"-11" (550KV), 10"-11" (650KV), 10" (880KV)

For pre-sales compatibility checks or bulk orders, contact https://rcdrone.top/ or support@rcdrone.top.

Specifications

Mechanical / Drawing

Model ECOII-3515
Motor diameter φ41.7
Motor dimensions (spec table) φ41.7*52.15mm
Overall height (drawing) 52.15
Top thread M5
Mounting 4-M3, φ19
Shaft 5mm
Lead 18AWG, 300

Electrical / Performance (by KV)

Item 450KV 550KV 650KV 880KV
Idle current (10V) 0.7A 1.0A 1.3A 1.9A
Internal resistance 88mΩ 66mΩ 54mΩ 39mΩ
No. of cells 10-12S 8-10S 6-8S 4-6S
Propeller 10"-11" 10"-11" 10"-11" 10"
Peak current 58A (12S) 65A (10S) 69A (8S) 87A (6S)
Max power 2780W (12S) 2600W (10S) 2210W (8S) 2170W (6S)
Weight 139g (W/O Silicone Wire) 140g (W/O Silicone Wire) 139g (W/O Silicone Wire) 137g (W/O Silicone Wire)
Framework 12N14P 12N14P 12N14P 12N14P

Bench Data Tables (as provided)

ECOII-3515-450KV (48V)

  • Gemfan1050 3-blade propeller: (A/G/W/G/W/RPM)
    • 2.55 / 700 / 122.40 / 5.72 / 6290
    • 4.78 / 1190 / 229.44 / 5.19 / 7890
    • 8.33 / 1810 / 399.84 / 4.53 / 9590
    • 13.1 / 2500 / 628.80 / 3.98 / 11140
    • 19.6 / 3300 / 940.80 / 3.51 / 12640
    • 28.5 / 4200 / 1368.00 / 3.07 / 14040
    • 39.2 / 5040 / 1881.60 / 2.68 / 15400
    • 50.8 / 5870 / 2438.40 / 2.41 / Max
  • AVAN1050 3-blade propeller: (A/G/W/G/W/RPM)
    • 2.65 / 710 / 127.20 / 5.58 / 6150
    • 5.13 / 1230 / 246.24 / 5.00 / 7820
    • 8.97 / 1910 / 430.56 / 4.44 / 9490
    • 14 / 2620 / 672.00 / 3.90 / 11020
    • 21 / 3450 / 1008.00 / 3.42 / 12480
    • 30.3 / 4350 / 1454.40 / 2.99 / 13920
    • 41.7 / 5160 / 2001.60 / 2.58 / 15260
    • 53.4 / 5940 / 2563.20 / 2.32 / Max
  • HQ 10*5*3 blade propeller: (A/G/W/G/W/RPM)
    • 2.7 / 740 / 129.60 / 5.71 / 6070
    • 5.41 / 1290 / 259.68 / 4.97 / 7760
    • 9.48 / 1950 / 455.04 / 4.29 / 9390
    • 14.9 / 2690 / 715.20 / 3.76 / 10920
    • 22.2 / 3530 / 1065.60 / 3.31 / 12360
    • 31.6 / 4410 / 1516.80 / 2.91 / 13800
    • 43.8 / 5370 / 2102.40 / 2.55 / 15080
    • 57.1 / 6270 / 2740.80 / 2.29 / Max

ECOII-3515-450KV (40V)

  • Gemfan1170 3-blade propeller: (A/G/W/G/W/RPM)
    • 2.37 / 600 / 94.80 / 6.33 / 4980
    • 4.9 / 1130 / 196.00 / 5.77 / 6460
    • 8.46 / 1720 / 338.40 / 5.08 / 7840
    • 13.4 / 2400 / 536.00 / 4.48 / 9150
    • 19.9 / 3140 / 796.00 / 3.94 / 10370
    • 27.9 / 3910 / 1116.00 / 3.50 / 11540
    • 38.6 / 4820 / 1544.00 / 3.12 / 12610
    • 49.1 / 5610 / 1964.00 / 2.86 / Max

ECOII-3515-550KV (40V)

  • Gemfan1050 3-blade propeller: (A/G/W/G/W/RPM)
    • 3.05 / 700 / 122.00 / 5.74 / 6260
    • 5.55 / 1160 / 222.00 / 5.23 / 7780
    • 9.84 / 1790 / 393.60 / 4.55 / 9460
    • 15.4 / 2480 / 616.00 / 4.03 / 10900
    • 23.1 / 3250 / 924.00 / 3.52 / 12450
    • 33.3 / 4140 / 1332.00 / 3.11 / 13860
    • 46.1 / 4970 / 1844.00 / 2.70 / 15130
    • 58.7 / 5730 / 2348.00 / 2.44 / Max
  • AVAN1050 3-blade propeller: (A/G/W/G/W/RPM)
    • 3.13 / 720 / 125.20 / 5.75 / 6090
    • 6.01 / 1220 / 240.40 / 5.07 / 7720
    • 10.5 / 1880 / 420.00 / 4.48 / 9370
    • 16.5 / 2590 / 660.00 / 3.92 / 10890
    • 24.4 / 3370 / 976.00 / 3.45 / 12330
    • 35.1 / 4250 / 1404.00 / 3.03 / 13720
    • 48 / 5010 / 1920.00 / 2.61 / 14990
    • 60.4 / 5860 / 2416.00 / 2.43 / Max
  • HQ 10*5*3 blade propeller: (A/G/W/G/W/RPM)
    • 3.2 / 730 / 128.00 / 5.70 / 6010
    • 6.32 / 1260 / 252.80 / 4.98 / 7660
    • 11.1 / 1890 / 444.00 / 4.26 / 9290
    • 17.3 / 2590 / 692.00 / 3.74 / 10790
    • 25.6 / 3390 / 1024.00 / 3.31 / 12210
    • 36.9 / 4280 / 1476.00 / 2.90 / 13560
    • 50.2 / 5210 / 2008.00 / 2.59 / 14850
    • 64.8 / 6080 / 2592.00 / 2.35 / Max

ECOII-3515-550KV (32V)

  • Gemfan1170 3-blade propeller: (A/G/W/G/W/RPM)
    • 2.59 / 550 / 82.88 / 6.64 / 4720
    • 5.21 / 1000 / 166.72 / 6.00 / 6070
    • 9.06 / 1560 / 289.92 / 5.38 / 7400
    • 14.4 / 2180 / 460.80 / 4.73 / 8680
    • 21.6 / 2870 / 691.20 / 4.15 / 9860
    • 30.4 / 3620 / 972.80 / 3.72 / 10900
    • 41.1 / 4410 / 1315.20 / 3.35 / 11980
    • 51.1 / 5050 / 1635.20 / 3.09 / Max

ECOII-3515-650KV (32V)

  • Gemfan1050 3-blade propeller: (A/G/W/G/W/RPM)
    • 3.38 / 630 / 108.16 / 5.82 / 5980
    • 6.11 / 1060 / 195.52 / 5.42 / 7430
    • 10.8 / 1630 / 345.60 / 4.72 / 9050
    • 17.1 / 2260 / 547.20 / 4.13 / 10530
    • 25.1 / 2930 / 803.20 / 3.65 / 11910
    • 35.9 / 3730 / 1148.80 / 3.25 / 13220
    • 49.4 / 4510 / 1580.80 / 2.85 / 14430
    • 62.2 / 5190 / 1990.40 / 2.61 / Max
  • AVAN1050 3-blade propeller: (A/G/W/G/W/RPM)
    • 3.47 / 650 / 111.04 / 5.85 / 5810
    • 6.6 / 1100 / 211.20 / 5.21 / 7350
    • 11.3 / 1710 / 361.60 / 4.73 / 8940
    • 18.2 / 2350 / 582.40 / 4.04 / 10410
    • 26.7 / 3050 / 854.40 / 3.57 / 11750
    • 37.7 / 3810 / 1206.40 / 3.16 / 13060
    • 51.7 / 4620 / 1654.40 / 2.79 / 14270
    • 65.1 / 5380 / 2083.20 / 2.58 / Max
  • HQ 10*5*3 blade propeller: (A/G/W/G/W/RPM)
    • 3.53 / 660 / 112.96 / 5.84 / 5740
    • 6.91 / 1140 / 221.12 / 5.16 / 7310
    • 12 / 1720 / 384.00 / 4.48 / 8860
    • 19.2 / 2370 / 614.40 / 3.86 / 10300
    • 28 / 3060 / 896.00 / 3.42 / 11650
    • 39.5 / 3820 / 1264.00 / 3.02 / 12940
    • 53.7 / 4630 / 1718.40 / 2.69 / 14160
    • 68.7 / 5400 / 2198.40 / 2.46 / Max

ECOII-3515-880KV (25V)

  • Gemfan1050 3-blade propeller: (A/G/W/G/W/RPM)
    • 3.23 / 460 / 80.75 / 5.70 / 5430
    • 7.36 / 980 / 184.00 / 5.33 / 7250
    • 13.5 / 1560 / 337.50 / 4.62 / 8940
    • 22.7 / 2300 / 567.50 / 4.05 / 10470
    • 33.9 / 3050 / 847.50 / 3.60 / 11810
    • 48.6 / 3780 / 1215.00 / 3.11 / 13030
    • 64.4 / 4480 / 1610.00 / 2.78 / 14330
    • 79.1 / 4980 / 1977.50 / 2.52 / Max
  • AVAN1050 3-blade propeller: (A/G/W/G/W/RPM)
    • 3.47 / 550 / 86.75 / 6.34 / 5340
    • 7.78 / 1100 / 194.50 / 5.66 / 7160
    • 14.1 / 1670 / 352.50 / 4.74 / 8810
    • 23.6 / 2400 / 590.00 / 4.07 / 10340
    • 35.9 / 3140 / 897.50 / 3.50 / 11620
    • 49.3 / 3840 / 1232.50 / 3.12 / 12950
    • 66.3 / 4620 / 1657.50 / 2.79 / 14170
    • 81.6 / 5210 / 2040.00 / 2.55 / Max
  • HQ 10*5*3 blade propeller: (A/G/W/G/W/RPM)
    • 3.59 / 580 / 89.75 / 6.46 / 5340
    • 8.24 / 1110 / 206.00 / 5.39 / 7130
    • 15.1 / 1700 / 377.50 / 4.50 / 8730
    • 25.2 / 2420 / 630.00 / 3.84 / 10210
    • 38.4 / 3170 / 960.00 / 3.30 / 11500
    • 53.5 / 3950 / 1337.50 / 2.95 / 12640
    • 69.7 / 4670 / 1742.50 / 2.68 / 13780
    • 86.8 / 5260 / 2170.00 / 2.42 / Max

Details

Emax ECOII 3515 brushless motor dimension drawing with 5mm shaft, 19mm M3 mount pattern and 300mm leads

Insert the ECOII-3515 drawing for quick reference on mounting (4×M3, 19mm pattern), shaft size, and overall dimensions.

ECOII-3515 450KV bench test table with thrust, current, power and RPM for 48V using 10" propellers

450KV performance data compares several 10" prop options at 48V, listing thrust, current draw, efficiency, and RPM.

ECOII-3515 550KV bench test results table at 40V and 32V with thrust, power, efficiency and RPM columns

550KV bench results are provided at multiple voltages to help match the motor to your battery and prop setup.

ECOII-3515 650KV bench data table at 32V for Gemfan 1050, AVAN 1050 and HQ 10×5×3 props

650KV test tables break out results by propeller model so you can compare thrust and efficiency across setups.

ECOII-3515 880KV bench test table at 25V with thrust, current, power, efficiency and RPM for 10×5 props

Details

Emax ECOII 3515 brushless motor specs sheet with KV options 450/550/650/880KV and mechanical drawingECOII-3515-450KV test data table at 48V and 40V showing thrust, watts, efficiency (g/W) and RPM by propECOII-3515-550KV performance table with propeller test rows and columns for current, thrust, power and RPMECOII-3515-650KV test data at 32V comparing Gemfan1050, AVAN1050 and HQ 10×5×3 blade propellersEmax ECOII 3515 450KV / 550KV / 650KV / 880KV Brushless Motor for FPV Racing Drone

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