EMAX E3 Series 2808

Stator	2808
KV options	1300, 1500
Weight	53.6 g (1300KV, cable excluded)
Shaft	M5
Max cells	3-6S
Configuration	12N14P
Dimensions	34.8x37 mm
Mount (bolt circle, mm)	Ø19 (4-M3)
Winding resistance	56 (1300KV) / 47 (1500KV) mOhm
Max thrust	2640 g
Price (approx.)	28.99 USD

At 53.6 g it is 8.0 g lighter than average across the 5 2808-class motors in our database (avg 61.6 g).

Best props for the E3 Series 2808

6"-7"

Thrust data (EMAX bench test)

KV	Prop	Battery	Throttle	Current	RPM	Thrust	Efficiency
1300	EMAX AVIA 7035-3	6S	—	2.16 A	9140	300 g	5.51 g/W
1300	EMAX AVIA 7035-3	6S	—	4.13 A	11850	515 g	4.95 g/W
1300	EMAX AVIA 7035-3	6S	—	6.74 A	14240	740 g	4.36 g/W
1300	EMAX AVIA 7035-3	6S	—	10.2 A	16730	1030 g	4.01 g/W
1300	EMAX AVIA 7035-3	6S	—	14.8 A	19280	1350 g	3.62 g/W
1300	EMAX AVIA 7035-3	6S	—	19.9 A	21410	1670 g	3.33 g/W
1300	EMAX AVIA 7035-3	6S	—	26.3 A	23590	2010 g	3.03 g/W
1300	EMAX AVIA 7035-3	6S	100%	33.8 A	—	2340 g	2.75 g/W
1500	EMAX AVIA 7040-3	6S	—	2.7 A	10410	330 g	4.85 g/W
1500	EMAX AVIA 7040-3	6S	—	5.63 A	13410	580 g	4.09 g/W
1500	EMAX AVIA 7040-3	6S	—	8.9 A	16140	860 g	3.83 g/W
1500	EMAX AVIA 7040-3	6S	—	14.1 A	18790	1220 g	3.43 g/W
1500	EMAX AVIA 7040-3	6S	—	20.7 A	21200	1610 g	3.09 g/W
1500	EMAX AVIA 7040-3	6S	—	29.3 A	23380	2020 g	2.74 g/W
1500	EMAX AVIA 7040-3	6S	—	39.8 A	25310	2330 g	2.32 g/W
1500	EMAX AVIA 7040-3	6S	100%	52.3 A	—	2640 g	2.0 g/W

Manufacturer bench figures (6S, EMAX AVIA 7040-3, 100% throttle, 1500KV; manufacturer payload test, 8 load points per KV, 6S); real-world thrust varies with ESC, battery sag and prop condition.

E3 Series 2808 vs other 2808 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.

Motor	KV	Prop	Peak thrust	At 1250 g	At 2500 g
EMAX E3 Series 2808	1500	EMAX AVIA 7040-3	2640 g at 1318 W	368 W (3.4 g/W)	1176 W (2.13 g/W)
VCI HOBBY 2808	1550	GF 7037-3	2650 g at 1274 W	462 W (2.71 g/W)	1177 W (2.12 g/W)
BrotherHobby Avenger 2808	1350	HQ 8X4.5X3	2738 g at 1685 W	402 W (3.11 g/W)	1446 W (1.73 g/W)
VCI HOBBY ARES 2808	1350	GF 7037-3	2502 g at 1057 W	409 W (3.06 g/W)	1056 W (2.37 g/W)
T-Motor V2808	1300	Gemfan GF8040-3	3083 g at 1482 W	379 W (3.3 g/W)	1019 W (2.45 g/W)

Power at 1250 g and 2500 g is read off each maker's curve, straight-line between its two nearest bench points; 2500 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 2808 motor: 2808 motors compared. How to read a bench table: reading motor bench tables.

Thrust-to-weight with this motor

Four EMAX E3 Series 2808 motors at 2640 g max thrust each give 10560 g: 2:1, the minimum to fly, up to 5280 g all-up; 4:1 (freestyle) up to 2640 g; 8:1 (racing) up to 1320 g.

RPM & prop speed on this motor

Props in this motor's class

Prop	Size	Blades	Weight
Gemfan Hurricane LR 6026-2	6.0x2.6	2	3.0 g
Gemfan Freestyle 6030	6.0x3.0	3	4.45 g
HQProp 6x4.3x2	6.0x4.3	2	4.7 g
Gemfan Flash 6042	6.0x4.2	2	4.82 g
APC 7x4 SF-B4 2-Blade	7.0x4.0	2	5.1 g

Where this data comes from

Weight, body, winding, cell rating and resistance from EMAX's own Specifications sheet (ECO-111-20250308---__14.jpg) on the maker's ECO III product page, read at full size 2026-10-20 (EMAX sells the E3 series as ECO III, the same motor): one block per winding, each 12N14P, Φ34.8*37mm, 5 mm bearing shaft, 18#AWG 250 mm lead, internal resistance 56 / 47 mΩ (1300/1500 KV), weight 53.6 g at 1300 KV, 53.8 g at 1500 KV, every one printed "(W/O Silicone Wire)"; the retail listing repeats the same figures "without silicone wire". EMAX prints no weight with the cable, so weight_g keeps the maker's first-listed winding's figure, named on the page as cable excluded. No. of cells per winding as printed: 3-6S at both windings. The drawing gives a Φ19 4-M3 bolt circle (mount_bolt_circle_mm) and an M5 prop thread; the listing's "Mounting Pattern: 19x19mm" is not a square pattern on EMAX's drawing, so mount_mm is not published.