EMAX ECO II Series 2306

EMAX ECO II Series 2306
Image: racedayquads.com
Stator2306
KV options1700, 1900, 2400
Weight30.4 g (1700KV, cable excluded)
ShaftM5
Max cells3-6S (1700/1900KV) / 3-4S (2400KV)
Configuration12N14P
Dimensions28x31.6 mm
Mount (bolt circle, mm)Ø16 (4-M3)
Winding resistance74 (1700KV) / 62 (1900KV) / 47 (2400KV) mOhm
Max thrust1990 g
Price (approx.)19.49 USD

At 30.4 g it is 2.3 g lighter than average across the 21 2306-class motors in our database (avg 32.7 g).

Thrust data (EMAX bench test)

KVPropBatteryThrottleCurrentRPMThrustEfficiency
1700 DALPROP Cyclone 5040 6S — 2.8 A 15700 300 g 4.25 g/W
1700 DALPROP Cyclone 5040 6S — 5.4 A 20100 500 g 3.67 g/W
1700 DALPROP Cyclone 5040 6S — 8.5 A 23400 700 g 3.27 g/W
1700 DALPROP Cyclone 5040 6S 100% 23.5 A — 1500 g 2.53 g/W
1700 DALPROP Cyclone 5050 6S — 2.9 A 13200 300 g 4.11 g/W
1700 DALPROP Cyclone 5050 6S — 5.6 A 16700 500 g 3.54 g/W
1700 DALPROP Cyclone 5050 6S — 9.4 A 19800 700 g 2.96 g/W
1700 DALPROP Cyclone 5050 6S 100% 34.8 A — 1710 g 1.95 g/W
1700 DALPROP Cyclone 5046 6S — 2.9 A 13900 300 g 4.11 g/W
1700 DALPROP Cyclone 5046 6S — 5.5 A 17800 500 g 3.61 g/W
1700 DALPROP Cyclone 5046 6S — 8.8 A 20600 700 g 3.16 g/W
1700 DALPROP Cyclone 5046 6S 100% 30.5 A — 1690 g 2.2 g/W
1700 HQ 5.5x4x3 6S — 2.6 A 12700 300 g 4.58 g/W
1700 HQ 5.5x4x3 6S — 5.0 A 16100 500 g 3.97 g/W
1700 HQ 5.5x4x3 6S — 7.9 A 18900 700 g 3.52 g/W
1700 HQ 5.5x4x3 6S 100% 31.8 A — 1850 g 2.31 g/W
1700 HQ 5x4.3x3 6S — 2.7 A 13900 300 g 4.41 g/W
1700 HQ 5x4.3x3 6S — 5.2 A 17700 500 g 3.82 g/W
1700 HQ 5x4.3x3 6S — 8.5 A 21100 700 g 3.27 g/W
1700 HQ 5x4.3x3 6S 100% 26.8 A — 1670 g 2.47 g/W
1700 HQ 5x4.8x3 6S — 2.8 A 14000 300 g 4.25 g/W
1700 HQ 5x4.8x3 6S — 5.5 A 17700 500 g 3.61 g/W
1700 HQ 5x4.8x3 6S — 8.2 A 21000 700 g 3.39 g/W
1700 HQ 5x4.8x3 6S 100% 29.4 A — 1680 g 2.27 g/W
1700 Gemfan 5045-3 6S — 2.8 A 14800 300 g 4.25 g/W
1700 Gemfan 5045-3 6S — 5.4 A 19000 500 g 3.67 g/W
1700 Gemfan 5045-3 6S — 8.6 A 22300 700 g 3.23 g/W
1700 Gemfan 5045-3 6S 100% 27.1 A — 1570 g 2.3 g/W
1900 DALPROP Cyclone 5040 6S — 3.0 A 15800 300 g 3.97 g/W
1900 DALPROP Cyclone 5040 6S — 5.8 A 20200 500 g 3.42 g/W
1900 DALPROP Cyclone 5040 6S — 9.1 A 23500 700 g 3.05 g/W
1900 DALPROP Cyclone 5040 6S 100% 33.2 A — 1780 g 2.13 g/W
1900 DALPROP Cyclone 5050 6S — 2.8 A 12580 300 g 4.25 g/W
1900 DALPROP Cyclone 5050 6S — 5.6 A 16340 500 g 3.54 g/W
1900 DALPROP Cyclone 5050 6S — 9.5 A 19100 700 g 2.92 g/W
1900 DALPROP Cyclone 5050 6S 100% 45.8 A — 1990 g 1.72 g/W
1900 DALPROP Cyclone 5046 6S — 2.9 A 12700 300 g 4.11 g/W
1900 DALPROP Cyclone 5046 6S — 5.7 A 17700 500 g 3.48 g/W
1900 DALPROP Cyclone 5046 6S — 9.4 A 20800 700 g 2.96 g/W
1900 DALPROP Cyclone 5046 6S 100% 41.4 A — 1970 g 1.89 g/W
1900 HQ 5x4.3x3 6S — 2.8 A 13900 300 g 4.25 g/W
1900 HQ 5x4.3x3 6S — 5.3 A 17700 500 g 3.74 g/W
1900 HQ 5x4.3x3 6S — 8.7 A 20900 700 g 3.19 g/W
1900 HQ 5x4.3x3 6S 100% 36.8 A — 1930 g 2.08 g/W
1900 HQ 5x4.8x3 6S — 2.9 A 13600 300 g 4.11 g/W
1900 HQ 5x4.8x3 6S — 5.7 A 17700 500 g 3.48 g/W
1900 HQ 5x4.8x3 6S — 9.2 A 19700 700 g 3.02 g/W
1900 HQ 5x4.8x3 6S 100% 38.8 A — 1960 g 2.0 g/W
1900 Gemfan 5045-3 6S — 2.9 A 15100 300 g 4.11 g/W
1900 Gemfan 5045-3 6S — 5.5 A 19000 500 g 3.61 g/W
1900 Gemfan 5045-3 6S — 9.0 A 22500 700 g 3.09 g/W
1900 Gemfan 5045-3 6S 100% 36.4 A — 1860 g 2.03 g/W
2400 DALPROP Cyclone 5040 4S — 4.2 A 15700 300 g 4.25 g/W
2400 DALPROP Cyclone 5040 4S — 8.3 A 19700 500 g 3.59 g/W
2400 DALPROP Cyclone 5040 4S — 13.4 A 23420 700 g 3.11 g/W
2400 DALPROP Cyclone 5040 4S 100% 28.8 A — 1290 g 2.67 g/W
2400 DALPROP Cyclone 5050 4S — 4.3 A 12850 300 g 4.15 g/W
2400 DALPROP Cyclone 5050 4S — 8.8 A 16600 500 g 3.38 g/W
2400 DALPROP Cyclone 5050 4S — 14.8 A 19700 700 g 2.82 g/W
2400 DALPROP Cyclone 5050 4S 100% 43.5 A — 1480 g 2.03 g/W
2400 DALPROP Cyclone 5046 4S — 4.2 A 13900 300 g 4.25 g/W
2400 DALPROP Cyclone 5046 4S — 8.4 A 17600 500 g 3.54 g/W
2400 DALPROP Cyclone 5046 4S — 13.7 A 20600 700 g 3.04 g/W
2400 DALPROP Cyclone 5046 4S 100% 36.8 A — 1480 g 2.39 g/W
2400 HQ 5.5x4x3 4S — 3.8 A 12600 300 g 4.7 g/W
2400 HQ 5.5x4x3 4S — 7.5 A 15900 500 g 3.97 g/W
2400 HQ 5.5x4x3 4S — 12.3 A 18700 700 g 3.39 g/W
2400 HQ 5.5x4x3 4S 100% 39.8 A — 1620 g 2.42 g/W
2400 HQ 5x4.3x3 4S — 4.2 A 13900 300 g 4.25 g/W
2400 HQ 5x4.3x3 4S — 8.1 A 17870 500 g 3.67 g/W
2400 HQ 5x4.3x3 4S — 12.9 A 21400 700 g 3.23 g/W
2400 HQ 5x4.3x3 4S 100% 32.4 A — 1410 g 2.59 g/W
2400 HQ 5x4.8x3 4S — 4.1 A 13800 300 g 4.36 g/W
2400 HQ 5x4.8x3 4S — 8.4 A 17800 500 g 3.54 g/W
2400 HQ 5x4.8x3 4S — 13.6 A 21200 700 g 3.06 g/W
2400 HQ 5x4.8x3 4S 100% 35.3 A — 1490 g 2.51 g/W
2400 Gemfan 5045-3 4S — 4.2 A 15300 300 g 4.25 g/W
2400 Gemfan 5045-3 4S — 8.3 A 19200 500 g 3.59 g/W
2400 Gemfan 5045-3 4S — 13.3 A 22800 700 g 3.13 g/W
2400 Gemfan 5045-3 4S 100% 32.7 A — 1380 g 2.51 g/W

Manufacturer bench figures (6S, DALPROP Cyclone 5050, 100% throttle, 1900KV; manufacturer bench at fixed thrust points (300/500/700 g) plus max; 2400KV tested on 4S); real-world thrust varies with ESC, battery sag and prop condition.

ECO II Series 2306 vs other 2306 motors on 6S

The same thrust costs different power on different motors. Each line is one maker's own bench series (6S, its own prop), drawn as grams of thrust per watt against thrust, so a higher line makes that thrust for less battery current. Throttle percent is left out on purpose: it means something different on every maker's rig.

012340500100015002000 thrust, g g/W
MotorKVPropPeak thrust At 1300 g
EMAX ECO II Series 2306 1900 DALPROP Cyclone 5050 1990 g at 1154 W 665 W (1.96 g/W)
EMAX E3 Series 2306 1900 EMAX AVAN 5026-3 1760 g at 978 W 614 W (2.12 g/W)
RDQ Badass 2 2306.5 1900 6045 1927 g at 1128 W 552 W (2.35 g/W)
GEPRC SPEEDX2 2306E 1860 5136 1342 g at 987 W 932 W (1.4 g/W)
T-Motor F40 PRO IV 2306.5 1950 T-Motor T5150 Tri-Blade 1902 g at 1012 W 571 W (2.28 g/W)
T-Motor Pacer V2 P2306 1950 T-Motor T5147 Tri-Blade 1701 g at 950 W 565 W (2.3 g/W)

Power at 1300 g is read off each maker's curve, straight-line between its two nearest bench points; 1300 g is the highest thrust every motor here reached. Different props and rigs move these curves as much as the motor does, so compare rows on a similar prop. Peak thrust of every 2306 motor: 2306 motors compared. How to read a bench table: reading motor bench tables.

Thrust-to-weight with this motor

Four EMAX ECO II Series 2306 motors at 1990 g max thrust each give 7960 g: 2:1, the minimum to fly, up to 3980 g all-up; 4:1 (freestyle) up to 1990 g; 8:1 (racing) up to 995 g.

RPM & prop speed on this motor

Props in this motor's class

PropSizeBladesWeight
Gemfan Long Range 5126-2 Durable 1.5mm T-Mount 5.1x2.7 2 2.6 g
HQProp DP 5.1x2.5x3 5.1x2.5 3 3.1 g
HQProp Juicy J37 4.9x3.7 3 3.4 g
HQProp Juicy J40 5.1x4.0 3 3.4 g
Gemfan 4935 Sbang 3-Blade 4.9x3.5 3 3.45 g

Where this data comes from

Weight, body, winding, cell rating and resistance from EMAX's own Specifications sheet (2306-2020-10-29-2.jpg) on the maker's product page, read at full size 2026-10-20: one block per winding, each 12N14P, Φ28*31.6mm, 4 mm bearing shaft, 20#AWG 120 mm lead, internal resistance 74 / 62 / 47 mΩ (1700/1900/2400 KV), weight 30.4 g at 1700 KV, 30.2 g at 1900 and 2400 KV, every one printed "(W/O Silicone Wire)". EMAX prints no weight with the cable, so weight_g keeps the maker's first-listed sold winding's figure, named on the page as cable excluded. No. of cells per winding as printed: 3-6S at 1700 and 1900 KV, 3-4S at 2400 KV. The drawing gives a Φ16 4-M3 bolt circle (mount_bolt_circle_mm) and an M5 prop thread.

Related 2306-class motors

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