• SunnySky X3520 520KV 720KV 880KV Brushless Motors for Aerobatics Airplane
  • SunnySky X3520 520KV 720KV 880KV Brushless Motors for Aerobatics Airplane
  • SunnySky X3520 520KV 720KV 880KV Brushless Motors for Aerobatics Airplane
  • SunnySky X3520 520KV 720KV 880KV Brushless Motors for Aerobatics Airplane
  • SunnySky X3520 520KV 720KV 880KV Brushless Motors for Aerobatics Airplane
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  • SunnySky X3520 520KV 720KV 880KV Brushless Motors for Aerobatics Airplane
  • SunnySky X3520 520KV 720KV 880KV Brushless Motors for Aerobatics Airplane
  • SunnySky X3520 520KV 720KV 880KV Brushless Motors for Aerobatics Airplane
  • SunnySky X3520 520KV 720KV 880KV Brushless Motors for Aerobatics Airplane
  • SunnySky X3520 520KV 720KV 880KV Brushless Motors for Aerobatics Airplane

SunnySky X3520 520KV 720KV 880KV Brushless Motors for Aerobatics Airplane

SKU: X3520-520KV
Max. thrust can reach to 5400g
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    720KV
    880KV
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  • SunnySky X3520 520KV 720KV 880KV Brushless Motors for Aerobatics Airplane
  • SunnySky X3520 520KV 720KV 880KV Brushless Motors for Aerobatics Airplane
  • SunnySky X3520 520KV 720KV 880KV Brushless Motors for Aerobatics Airplane
  • SunnySky X3520 520KV 720KV 880KV Brushless Motors for Aerobatics Airplane
  • SunnySky X3520 520KV 720KV 880KV Brushless Motors for Aerobatics Airplane
  • Description
Sunnysky X3520 series brushless motors are processed by CNC milling, the hollow-designed appearance not only guarantee good heat dissipation, but also greatly reduce motor weight. In addition, it also make motors look more strong at visual. They are great for rc airplanes, 

Main Features:
Stainless steel solid shaft

The motor shaft is made of 420 stainless steel material imported from Japan. After heat treatment, the shafts are improved to high strength, excellent ductility, and better resistance to bending and breaking.

6061-T6 Aviation aluminum alloy
Top and bottom caps are made of high strength 6061-T6 aviation aluminum alloy, with high hardness and high strength of extension, which can ensure reliable performance of motors.

Imported NMB bearings
X series uses customized NMB mini bearings imported from Japan, which provide longer life, quiet and stable operation of these motors.

Hand wound
The coils of X motors are all hand wound. This manufacturing procedure costs much more in labor, but makes the coil tight, neat, better coil space factor, and can increase the continuous power output of motors.

Specifications:
Motor Model / KV X3520/ KV720 X3520/ KV880 X3520/ KV520
Stator/Rotor Poles 12N14P 12N14P 12N14P
Internal resistance 19mΩ 15mΩ 23mΩ
Motor size φ42.5*61.5mm φ42.5*61.5mm Motor length: 42mm
Shaft diameter 5.0mm 5.0mm 5.0mm
AWG 20AWG 110mm 20AWG 110mm 20AWG 110mm
Motor weight(wire included) 210g 200g 219g
Motor weight(wire excluded) No data No data No data
Rated operational voltage 4-5S 4S 4-6S
No-load current 1.4A/10V 2.0A/10V 1.1A
Maximum continuous power 1500W 1360W 2000W
Maximum continuous current 72A/30s 83.8A/30s 80A/30s
ESC recommended use 80-100A 80-100A 60-80A
Propeller size recommended use APC12*6/APC12*8/APC13*6.5/APC13*8/DXL14*8 APC12*6/APC12*8/APC13*6.5/APC13*8/DXL14*8 EEOLO12*6.5/EOLO13*7/EOLO14*7/APC12*8/APC12*6 APC13*6.5/APC13*8/APC14*7



X3520 520KV TEST Report:
Prop(inch) Voltage(V) Amps (A) Thrust(g) Watts (W) Efficiency(g/W) RPM Load temperature in 100% throttle
EOLO 12*6.5 22.2 2.7 500 59.94 8.34 4300  
4.5 750 99.9 7.51 5155
6.4 1000 142.08 7.04 6034
8.7 1250 193.14 6.47 6760
11.1 1500 246.42 6.09 7344
13.8 1750 306.36 5.71 7850
16.7 2000 370.74 5.39 8382
20.3 2250 450.66 4.99 8768
23.2 2500 515.04 4.85 9274
26.7 2750 592.74 4.64 9668
30.2 3000 670.44 4.47 10000
40.6 3690 901.32 4.09 11000
25 2.4 500 60 8.33 4320
4 750 100 7.50 5115
5.9 1000 147.5 6.78 6015
7.9 1250 197.5 6.33 6760
10.2 1500 255 5.88 7350
12.5 1750 312.5 5.60 7894
15 2000 375 5.33 8372
18 2250 450 5.00 8703
20.6 2500 515 4.85 9227
23.6 2750 590 4.66 9630
26.9 3000 672.5 4.46 10060
33.75 3500 843.75 4.15 10770
41.4 4000 1035 3.86 11412
50.5 4517 1262.5 3.58 11987 101℃ 10min
EOLO 13*7 22.2 2.5 500 55.5 9.01 3647  
4.2 750 93.24 8.04 4510
6.1 1000 135.42 7.38 5058
8.2 1250 182.04 6.87 5625
10.6 1500 235.32 6.37 6190
13 1750 288.6 6.06 6720
15.8 2000 350.76 5.70 7129
18.7 2250 415.14 5.42 7500
21.8 2500 483.96 5.17 7900
25.3 2750 561.66 4.90 8278
29.4 3000 652.68 4.60 8625
36.5 3500 810.3 4.32 9210
45.4 4000 1007.88 3.97 9830
54.7 4550 1214.34 3.75 10365
25 2.4 500 60 8.33 3670
3.8 750 95 7.89 4460
5.4 1000 135 7.41 5050
7.3 1250 182.5 6.85 5600
9.3 1500 232.5 6.45 6200
11.6 1750 290 6.03 6649
14 2000 350 5.71 7080
16.6 2250 415 5.42 7460
19.4 2500 485 5.15 7782
23.4 2750 585 4.70 8000
26.1 3000 652.5 4.60 8490
32.5 3500 812.5 4.31 9076
38.6 4000 965 4.15 9766
67.3 5560 1682.5 3.30 11324 112℃ 3min18s
EOLO 14*7 22.2 2.3 500 51.06 9.79 3248  
3.8 750 84.36 8.89 3906
5.5 1000 122.1 8.19 4560
7.4 1250 164.28 7.61 5040
9.5 1500 210.9 7.11 5537
11.9 1750 264.18 6.62 5955
14.4 2000 319.68 6.26 6313
16.9 2250 375.18 6.00 6758
19.9 2500 441.78 5.66 7050
22.8 2750 506.16 5.43 7411
26.3 3000 583.86 5.14 7640
34.8 3500 772.56 4.53 8260
41.5 4000 921.3 4.34 8748
64.4 5414 1429.68 3.79 9950
25 2.1 500 52.5 9.52 3196
3.4 750 85 8.82 3904
4.9 1000 122.5 8.16 4437
6.6 1250 165 7.58 4968
8.5 1500 212.5 7.06 5500
10.5 1750 262.5 6.67 6000
12.6 2000 315 6.35 6320
14.8 2250 370 6.08 6770
17.5 2500 437.5 5.71 7080
19.9 2750 497.5 5.53 7323
23 3000 575 5.22 7500
30.7 3500 767.5 4.56 8200
36.7 4000 917.5 4.36 8700
51.9 5000 1297.5 3.85 9663
79.8 6560 1995 3.29 10827 120℃ 1min
APC12*6 22.2 2.7 500 59.94 8.34 4634  
4.6 750 102.12 7.34 5655
6.4 1000 142.08 7.04 6492
8.7 1250 193.14 6.47 7152
11.2 1500 248.64 6.03 7754
14 1750 310.8 5.63 8265
17 2000 377.4 5.30 8822
20.8 2250 461.76 4.87 9349
24.4 2500 541.68 4.62 9747
29.7 2750 659.34 4.17 10140
38.9 3300 863.58 3.82 11104
25 2.4 500 60 8.33 4652
4 750 100 7.50 5676
5.7 1000 142.5 7.02 6457
8 1250 200 6.25 7168
10.6 1500 265 5.66 7732
12.9 1750 322.5 5.43 8222
15.2 2000 380 5.26 8853
18.4 2250 460 4.89 9360
21.45 2500 536.25 4.66 9789
25.6 2750 640 4.30 10166
29.1 3000 727.5 4.12 10688
40 3500 1000 3.50 11170
46.8 3840 1170 3.28 12003 97℃ 10min
APC12*8 22.2 2.7 500 59.94 8.34 4214  
4.7 750 104.34 7.19 5140
6.7 1000 148.74 6.72 5945
9.1 1250 202.02 6.19 6480
11.9 1500 264.18 5.68 7100
15.1 1750 335.22 5.22 7723
18.3 2000 406.26 4.92 8083
22.7 2250 503.94 4.46 8668
27.2 2500 603.84 4.14 9221
32.8 2750 728.16 3.78 9800
48.6 3260 1078.92 3.02 10530
25 2.4 500 60 8.33 4233
4.1 750 102.5 7.32 5162
6 1000 150 6.67 5911
8.2 1250 205 6.10 6452
10.6 1500 265 5.66 7143
13.3 1750 332.5 5.26 7745
16.4 2000 410 4.88 8090
20 2250 500 4.50 8633
24.2 2500 605 4.13 9256
30.9 2750 772.5 3.56 9909
36.7 3000 917.5 3.27 10138
57.9 3767 1447.5 2.60 11507 94℃ 5min
APC13*6.5 22.2 2.4 500 53.28 9.38 3975  
4 750 88.8 8.45 4831
6.05 1000 134.31 7.45 5537
8.1 1250 179.82 6.95 6151
10.6 1500 235.32 6.37 6660
13.2 1750 293.04 5.97 7191
16 2000 355.2 5.63 7660
19.2 2250 426.24 5.28 8121
22.7 2500 503.94 4.96 8476
26.3 2750 583.86 4.71 8886
30.1 3000 668.22 4.49 9256
37.4 3500 830.28 4.22 9863
47.4 4000 1052.28 3.80 10591
25 2.1 500 52.5 9.52 3962
3.7 750 92.5 8.11 4853
5.4 1000 135 7.41 5570
7.3 1250 182.5 6.85 6144
9.5 1500 237.5 6.32 6689
11.8 1750 295 5.93 7139
14.2 2000 355 5.63 7655
17 2250 425 5.29 8144
20 2500 500 5.00 8459
20 2750 500 5.50 8852
26.5 3000 662.5 4.53 9273
35.3 3500 882.5 3.97 9853
45.5 4000 1137.5 3.52 10428
59.6 4550 1490 3.05 11580 102℃ 3min
APC13*8 22.2 2.3 500 51.06 9.79 3741  
4.1 750 91.02 8.24 4535
6 1000 133.2 7.51 5189
8.6 1250 190.92 6.55 5777
11.6 1500 257.52 5.82 6256
14 1750 310.8 5.63 6849
16.9 2000 375.18 5.33 7338
20.2 2250 448.44 5.02 7765
24.2 2500 537.24 4.65 8074
27.7 2750 614.94 4.47 8451
32.9 3000 730.38 4.11 8866
41.5 3500 921.3 3.80 9471
56.8 4050 1260.96 3.21 10158
25 2.2 500 55 9.09 3765
3.6 750 90 8.33 4510
5.5 1000 137.5 7.27 5173
7.7 1250 192.5 6.49 5732
9.8 1500 245 6.12 6295
12.5 1750 312.5 5.60 6825
15.1 2000 377.5 5.30 7320
18 2250 450 5.00 7707
21.2 2500 530 4.72 8090
24.9 2750 622.5 4.42 8420
28.15 3000 703.75 4.26 8802
36.3 3500 907.5 3.86 9430
52.9 4000 1322.5 3.02 9960
70.8 4500 1770 2.54 10936

X3520 720KV Test Report:
Prop(inch) Voltage(V) Amps(A) Thrust(gf) Watts(W) Efficiency(g/W) Load temperature in 100% throttle
APC12*6 14.8 3.8 500 56.24 8.890469417 50℃
6.2 750 91.76 8.173496077
9.1 1000 134.68 7.425007425
12.3 1250 182.04 6.86662272
16.1 1500 238.28 6.295114991
20 1750 296 5.912162162
24.4 2000 361.12 5.53832521
32 2400 473.6 5.067567568
16.8 3.3 500 55.44 9.018759019 54℃
5.7 750 95.76 7.832080201
8.2 1000 137.76 7.259001161
11.1 1250 186.48 6.703131703
14.3 1500 240.24 6.243756244
17.8 1750 299.04 5.852059925
21.9 2000 367.92 5.43596434
26.8 2300 450.24 5.108386638
32.5 2600 546 4.761904762
38.6 2960 648.48 4.564520109
18.5 3.1 500 57.35 8.718395815 68℃
5.1 750 94.35 7.949125596
7.6 1000 140.6 7.112375533
10.2 1250 188.7 6.62427133
13.1 1500 242.35 6.189395502
16.5 1750 305.25 5.733005733
19.8 2000 366.3 5.46000546
24.2 2300 447.7 5.137368774
29.3 2600 542.05 4.796605479
36.3 3000 671.55 4.467277195
46.2 3500 854.7 4.095004095
21 2.8 500 58.8 8.503401361 98℃
4.8 750 100.8 7.44047619
6.6 1000 138.6 7.215007215
9.1 1250 191.1 6.54107797
11.7 1500 245.7 6.105006105
14.7 1750 308.7 5.66893424
17.8 2000 373.8 5.350454789
21.6 2300 453.6 5.070546737
26.3 2600 552.3 4.707586457
33.9 3000 711.9 4.214075011
41.9 3500 879.9 3.977724741
53.2 4000 1117.2 3.58037952
57.5 4280 1207.5 3.544513458
APC12*8 14.8 3.9 500 57.72 8.662508663 53℃
6.6 750 97.68 7.678132678
9.8 1000 145.04 6.894649752
13.5 1250 199.8 6.256256256
17.2 1500 254.56 5.892520427
21.4 1750 316.72 5.525385198
27.2 2000 402.56 4.968203498
32.8 2300 485.44 4.737969677
38 2550 562.4 4.534139403
16.8 3.5 500 58.8 8.503401361 83℃
5 750 84 8.928571429
8.6 1000 144.48 6.9213732
11.9 1250 199.92 6.252501
15.4 1500 258.72 5.797773655
19.3 1750 324.24 5.397236615
23.6 2000 396.48 5.044390638
29.1 2300 488.88 4.704630993
35.8 2600 601.44 4.322958234
47.3 3100 794.64 3.901137622
18.5 3.2 500 59.2 8.445945946 97℃
5.4 750 99.9 7.507507508
8 1000 148 6.756756757
10.9 1250 201.65 6.19885941
14.1 1500 260.85 5.750431282
18.4 1750 340.4 5.141010576
21.8 2000 403.3 4.959087528
27 2300 499.5 4.604604605
35 2600 647.5 4.015444015
42.6 3000 788.1 3.806623525
58 3420 1073 3.187325256
21 2.9 500 60.9 8.210180624 3min 93℃
4.8 750 100.8 7.44047619
7.2 1000 151.2 6.613756614
9.6 1250 201.6 6.200396825
12.8 1500 268.8 5.580357143
15.5 1750 325.5 5.376344086
19.2 2000 403.2 4.96031746
24.2 2300 508.2 4.525777253
31 2600 651 3.993855607
41.7 3000 875.7 3.425830764
55 3500 1155 3.03030303
70 4070 1470 2.768707483
APC13*6.5 14.8 3.5 500 51.8 9.652509653 54℃
5.8 750 85.84 8.737185461
8.6 1000 127.28 7.856693903
11.7 1250 173.16 7.218757219
15 1500 222 6.756756757
18.6 1750 275.28 6.357163615
22.8 2000 337.44 5.926979611
28.1 2300 415.88 5.530441474
33.9 2600 501.72 5.182173324
39.5 2910 584.6 4.977762573
16.8 3.1 500 52.08 9.600614439 69℃
5.1 750 85.68 8.753501401
7.5 1000 126 7.936507937
10.3 1250 173.04 7.223763292
13.5 1500 226.8 6.613756614
17 1750 285.6 6.12745098
20.3 2000 341.04 5.864414731
24.8 2300 416.64 5.520353303
30.3 2600 509.04 5.107653623
28.9 3000 485.52 6.178942165
48.8 3540 819.84 4.317915691
18.5 2.8 500 51.8 9.652509653 98℃
4.7 750 86.95 8.625646924
7 1000 129.5 7.722007722
9.5 1250 175.75 7.112375533
12.3 1500 227.55 6.591957811
15.2 1750 281.2 6.223328592
18.7 2000 345.95 5.781182252
23.1 2300 427.35 5.382005382
28 2600 518 5.019305019
36.6 3000 677.1 4.430660168
44.9 3500 830.65 4.213567688
57.1 4180 1056.35 3.95702182
21 2.6 500 54.6 9.157509158 3min 98℃
4.3 750 90.3 8.305647841
6.2 1000 130.2 7.680491551
8.6 1250 180.6 6.9213732
11 1500 231 6.493506494
13.5 1750 283.5 6.172839506
16.6 2000 348.6 5.737234653
20.8 2300 436.8 5.265567766
24.9 2600 522.9 4.972270033
33.3 3000 699.3 4.29000429
39.5 3500 829.5 4.219409283
49 4000 1029 3.887269193
59.5 4500 1249.5 3.601440576
71 5100 1491 3.420523139
APC13*8 14.8 3.6 500 53.28 9.384384384 73℃
6.1 750 90.28 8.307487816
8.9 1000 131.72 7.591861524
12 1250 177.6 7.038288288
15.7 1500 232.36 6.455500086
19.8 1750 293.04 5.971880972
23.8 2000 352.24 5.677946854
30 2300 444 5.18018018
36.4 2600 538.72 4.826254826
45.5 3030 673.4 4.4995545
16.8 3.2 500 53.76 9.300595238 97℃
5.3 750 89.04 8.423180593
8 1000 134.4 7.44047619
10.7 1250 179.76 6.953716066
14 1500 235.2 6.37755102
17.2 1750 288.96 6.05620155
21.6 2000 362.88 5.511463845
26.7 2300 448.56 5.127519172
32.4 2600 544.32 4.776601999
41.2 3000 692.16 4.334257975
56.7 3660 952.56 3.842277652
DXL14*8 14.8 3.5 500 51.8 9.652509653 97℃
5.9 750 87.32 8.589097572
8.7 1000 128.76 7.766387077
11.8 1250 174.64 7.15758131
15.4 1500 227.92 6.581256581
19.3 1750 285.64 6.126592914
24 2000 355.2 5.630630631
29.3 2300 433.64 5.303938751
36.4 2600 538.72 4.826254826
45.8 3000 677.84 4.425823203
57.8 3530 855.44 4.126531376
16.8 3 500 50.4 9.920634921 3min 96℃
5.2 750 87.36 8.585164835
7.6 1000 127.68 7.832080201
10.5 1250 176.4 7.0861678
13.8 1500 231.84 6.469979296
17.3 1750 290.64 6.021194605
21 2000 352.8 5.66893424
26.5 2300 445.2 5.16621743
32.2 2600 540.96 4.806270334
40 3000 672 4.464285714
51.9 3500 871.92 4.014129737
72.3 4230 1214.64 3.482513337

X3520 880KV Test Report:
Prop(inch) Voltage(V) Amps(A) Thrust(gf) Watts(W) Efficiency(g/W) Load temperature in 100% throttle
APC12*6 14.8 4 500 59.2 8.445945946 68℃
6.6 750 97.68 7.678132678
10 1000 148 6.756756757
13 1250 192.4 6.496881497
17 1500 251.6 5.961844197
20.7 1750 306.36 5.712233973
25.5 2000 377.4 5.299417064
32.5 2300 481 4.781704782
39.7 2600 587.56 4.425079992
47.5 3000 703 4.26742532
16.8 3.6 500 60.48 8.267195767 74℃
6 750 100.8 7.44047619
8.8 1000 147.84 6.764069264
11.7 1250 196.56 6.359381359
15.4 1500 258.72 5.797773655
19 1750 319.2 5.48245614
22.8 2000 383.04 5.2213868
29 2300 487.2 4.720853859
34.8 2600 584.64 4.447181171
43.7 3000 734.16 4.086302713
59 3700 991.2 3.732849072
APC12*8 14.8 4.1 500 60.68 8.239947264 72℃
7.1 750 105.08 7.137419109
10.5 1000 155.4 6.435006435
14.2 1250 210.16 5.947849258
18.4 1500 272.32 5.508225617
23.5 1750 347.8 5.031627372
28.1 2000 415.88 4.809079542
35.3 2300 522.44 4.402419417
45.2 2600 668.96 3.886629993
56 3100 828.8 3.74034749
16.8 3.6 500 60.48 8.267195767 84℃
6.3 750 105.84 7.0861678
9.2 1000 154.56 6.469979296
12.6 1250 211.68 5.905139834
16.3 1500 273.84 5.477651183
20.8 1750 349.44 5.008012821
25.3 2000 425.04 4.705439488
31.6 2300 530.88 4.332429174
40 2600 672 3.869047619
53.5 3000 898.8 3.337783712
70.3 3460 1181.04 2.929621351
APC13*6.5 14.8 3.8 500 56.24 8.890469417 75℃
6.3 750 93.24 8.043758044
9.1 1000 134.68 7.425007425
12.4 1250 183.52 6.811246731
15.9 1500 235.32 6.374298827
19.8 1750 293.04 5.971880972
25 2000 370 5.405405405
30.1 2300 445.48 5.162970279
37.3 2600 552.04 4.709803637
47.6 3000 704.48 4.258460141
58 3500 858.4 4.077353215
16.8 3.2 500 53.76 9.300595238 90℃
5.6 750 94.08 7.971938776
8 1000 134.4 7.44047619
11 1250 184.8 6.764069264
14.3 1500 240.24 6.243756244
17.7 1750 297.36 5.885122411
21.8 2000 366.24 5.460899956
26.9 2300 451.92 5.089396353
32.8 2600 551.04 4.718350755
42.5 3000 714 4.201680672
52.4 3500 880.32 3.975826972
64.4 4000 1081.92 3.697131026
70.2 4280 1179.36 3.629086962
APC13*6.5 14.8 4 500 59.2 8.445945946 85℃
6.7 750 99.16 7.563533683
10 1000 148 6.756756757
13 1250 192.4 6.496881497
17.6 1500 260.48 5.758599509
21.7 1750 321.16 5.448997384
26.6 2000 393.68 5.080268238
33.2 2300 491.36 4.680885705
40 2600 592 4.391891892
55.2 3000 816.96 3.672150411
66.3 3550 981.24 3.617871265
16.8 3.4 500 57.12 8.753501401 3min 94℃
5.7 750 95.76 7.832080201
8.6 1000 144.48 6.9213732
11.7 1250 196.56 6.359381359
15.3 1500 257.04 5.8356676
18.8 1750 315.84 5.540780142
23.8 2000 399.84 5.0020008
29 2300 487.2 4.720853859
35.7 2600 599.76 4.33506736
48 3000 806.4 3.720238095
59.2 3500 994.56 3.519144144
75.4 4000 1266.72 3.157761778
81 4300 1360.8 3.159905938
XDL14*8 14.8 3.7 500 54.76 9.130752374 3min 98℃
6.4 750 94.72 7.918074324
9.3 1000 137.64 7.265329846
12.7 1250 187.96 6.650351139
16.7 1500 247.16 6.068943195
20.7 1750 306.36 5.712233973
25.3 2000 374.44 5.341309689
31.6 2300 467.68 4.917892576
39.2 2600 580.16 4.481522339
49.9 3000 738.52 4.062178411
66.8 3500 988.64 3.540216864
83.8 3920 1240.24 3.160678578
Frequently Bought Together
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Frequently Bought Together
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