7- to 8-inch long-range FPV motor
GEPRC EM2810
A 69.5 g 2810 for 7 to 8-inch long-range builds on 6S; on GEPRC’s bench at about 24 V the 1280KV peaks at 3,158 g on a Gemfan 8040X3 and the 1350KV at 3,229 g.
- 7 to 8-inch long range
- 6S
- 7 to 8-inch props
The spin is an illustration: the model turns at 1/600 of the no-load speed, and it is a generic 2810 motor drawn from GEPRC’s published sizes, not its exact design. Thrust, current and power are GEPRC’s bench figures for the Gemfan 8040X3 prop at 24.12 V, read straight across between its throttle steps. Its data starts at 20% throttle.
- Max thrust
- 3,055 g
- Gemfan 8040X3 prop, 24.12 V
- Weight
- 69.5 g
- with wire; GEPRC gives the same for both KVs
- Peak current
- 56.7 A
- full throttle
- Max power
- 1,323 W
- full throttle
from $21.99a motor at GEPRC
A set of four: $87.96
Price seen Oct 19, 2026. Plain links: we earn nothing from them.
What it pulls
GEPRC’s own bench test, one line per prop. Drag across the chart to move the throttle; the model above follows.
At 60% with the Gemfan 8040X3: 1,959 g of thrust, 24.4 A, 588 W, 3.33 g per watt.
On your quad
18.8 : 1
Thrust to weight at full throttle: four motors pull 12,220 g with the Gemfan 8040X3 at 24.12 V.
At 60% throttle they pull 7,836 g, 12.1 times the quad’s weight.
All-up weight is the quad ready to fly, with its battery and camera. The thrust is the maker’s static bench figure; in the air it is lower.
What you get for $21.99
Over 3 kg on 6S
The 1280KV pulled 3,158 g on a Gemfan 8040X3 at 90% throttle, drawing 55.26 A; the 1350KV reached 3,229 g at 80% on the prop GEPRC lists as a 7535X3.
Source: GEPRC datasheet
M5 steel shaft
A 5 mm steel shaft with an M5 thread, standing 16 mm above the bell, with an M5 flange nut in the box.
Source: GEPRC product page, GEPRC spec image, GEPRC drawing
19 × 19 mm base
Four M3 holes on a 19 mm circle, with 260 mm 18 AWG leads.
Source: GEPRC product page, GEPRC drawing
What to pair it with
Our reading of GEPRC’s numbers, so your build matches what the motor was tested with.
- ESC
- GEPRC recommends a 50–60 A ESC and gives peak currents of 54 A (1280KV) and 61 A (1350KV). Its datasheet peaks at 56.72 A and 61.9 A. (GEPRC product page, GEPRC datasheet)
- Props
- 7 to 8-inch. GEPRC tested the 1280KV on a Hoprop 7x3.7x3 and Gemfan 8040X3 and 7535X3, and the 1350KV on Gemfan 7037X3, 8040X3 and 7535X3. On its sheet the 1350KV draws more on the 7535 than on the 8040, the reverse of the 1280KV, so those two labels may be swapped. (GEPRC product page, GEPRC datasheet)
- Battery
- 6S (25.2 V). (GEPRC product page, GEPRC spec image)
- Frame
- Four M3 holes on a 19 × 19 mm pattern, with M3×9 screws in the box; GEPRC made it for 7 to 8-inch long-range frames. (GEPRC product page, GEPRC drawing)
Where to buy
- GEPRCthe maker’s store; 1280KV or 1350KV, same price$21.99seen Oct 19, 2026Visit
Plain links, not affiliate links. Prices change; the store’s page has the current one.
Full specs
| Spec | Value | Source |
|---|---|---|
| KV | 1,280 rpm/V (also 1350KV) | GEPRC product page, GEPRC spec image |
| Stator | 28 × 10 mm (2810) (from the size in GEPRC’s name) | GEPRC product page |
| Configuration | 12N14P (12 stator slots, 14 magnet poles) | GEPRC product page, GEPRC spec image |
| Battery | 6S LiPo (25.2 V) | GEPRC product page, GEPRC spec image |
| Weight | 69.5 g (with wire; GEPRC gives the same for both KVs) | GEPRC product page, GEPRC spec image |
| Dimensions | φ33 × 23.1 mm without the shaft, with 16 mm of shaft above the bell (the product page’s 1350KV list gives φ33 × 20.1 mm; the spec image and drawing give 23.1 mm) | GEPRC spec image, GEPRC drawing |
| Shaft | Φ5 mm steel shaft with an M5 thread (10 mm of thread), standing 16 mm above the bell | GEPRC product page, GEPRC spec image, GEPRC drawing |
| Mounting | 4 × M3 holes, 3 mm deep, on a 19 mm circle (19 × 19 mm) | GEPRC product page, GEPRC drawing |
| Magnets | N52H | GEPRC product page, GEPRC spec image |
| Bearings | NSK/NMB (as GEPRC gives it) | GEPRC product page, GEPRC spec image |
| Winding | Single-strand copper | GEPRC product page, GEPRC spec image |
| Internal resistance | 46 mΩ (1350KV 43 mΩ; GEPRC gives it as interphase resistance) | GEPRC product page, GEPRC spec image |
| Peak current | 54 A (1350KV 61 A) | GEPRC product page, GEPRC spec image |
| Max power | 1,160 W (1350KV 1240 W) | GEPRC product page, GEPRC spec image |
| Leads | 18 AWG, 260 mm | GEPRC product page, GEPRC spec image |
| In the box | 4 × M3×9 round-head screws and an M5 flange nut | GEPRC product page, GEPRC spec image |
Bench data
Redrawn from GEPRC’s test reports. Thrust is static pull on a bench, more than you get in flight. Power is volts × amps; efficiency is thrust divided by power.
1280KV on 6S3 props
| Prop | Voltage (V) | Throttle | Current (A) | Thrust (g) | Power (W) | Efficiency (g/W) |
|---|---|---|---|---|---|---|
| Gemfan 8040X3at 24.12 Vmotor at 109 °C | 24.12 | 20% | 1.02 | 140 | 24.59 | 5.69 |
| 24.1 | 30% | 3.46 | 460 | 83.96 | 5.48 | |
| 23.99 | 40% | 7.64 | 890 | 184.77 | 4.82 | |
| 23.88 | 50% | 13.89 | 1,335 | 334.43 | 3.99 | |
| 23.91 | 60% | 24.4 | 1,959 | 588.26 | 3.33 | |
| 23.66 | 70% | 37.11 | 2,530 | 885.46 | 2.86 | |
| 23.47 | 80% | 53.18 | 3,126 | 1258.66 | 2.48 | |
| 23.36 | 90% | 55.26 | 3,158 | 1301.9 | 2.39 | |
| 23.32 | 100% | 56.72 | 3,055 | 1322.7 | 2.31 | |
| Gemfan 7535X3at 24.11 Vmotor at 87 °C | 24.11 | 20% | 0.48 | 103 | 11.53 | 8.93 |
| 24.07 | 30% | 3.25 | 397 | 78.81 | 5.04 | |
| 24.02 | 40% | 6.6 | 740 | 159.76 | 4.63 | |
| 24.01 | 50% | 10.69 | 1,044 | 259.86 | 4.02 | |
| 23.99 | 60% | 16.07 | 1,425 | 388.7 | 3.67 | |
| 23.82 | 70% | 24.96 | 1,907 | 599.6 | 3.18 | |
| 23.6 | 80% | 36.97 | 2,394 | 880.11 | 2.72 | |
| 23.58 | 90% | 39.33 | 2,488 | 935.24 | 2.66 | |
| 23.55 | 100% | 40.92 | 2,553 | 963.67 | 2.66 | |
| Hoprop 7x3.7x3at 24.05 Vmotor at 74 °C | 24.05 | 20% | 0.48 | 106 | 11.53 | 9.19 |
| 24.04 | 30% | 3.25 | 396 | 78.64 | 5.04 | |
| 24.03 | 40% | 6.39 | 694 | 155.41 | 4.47 | |
| 23.93 | 50% | 10.35 | 994 | 249.72 | 3.98 | |
| 23.99 | 60% | 15 | 1,298 | 362.83 | 3.58 | |
| 23.8 | 70% | 22.94 | 1,758 | 550.59 | 3.19 | |
| 23.55 | 80% | 34.96 | 2,302 | 830.26 | 2.77 | |
| 23.52 | 90% | 37.39 | 2,411 | 886.96 | 2.72 | |
| 23.49 | 100% | 39.72 | 2,512 | 933.02 | 2.69 |
Source: GEPRC datasheet
1350KV on 6S3 props
| Prop | Voltage (V) | Throttle | Current (A) | Thrust (g) | Power (W) | Efficiency (g/W) |
|---|---|---|---|---|---|---|
| Gemfan 7535X3at 24.12 Vmotor at 93 °C | 24.12 | 20% | 1.02 | 131 | 24.59 | 5.33 |
| 24.11 | 30% | 4.01 | 509 | 97.02 | 5.25 | |
| 24.1 | 40% | 9.03 | 946 | 219.36 | 4.31 | |
| 24.1 | 50% | 15.51 | 1,414 | 376.96 | 3.75 | |
| 23.88 | 60% | 26.83 | 2,010 | 646.12 | 3.11 | |
| 23.77 | 70% | 41.1 | 2,631 | 985.07 | 2.67 | |
| 23.44 | 80% | 59.22 | 3,229 | 1400.02 | 2.31 | |
| 23.36 | 90% | 60.54 | 3,129 | 1426.23 | 2.19 | |
| 23.33 | 100% | 61.9 | 3,140 | 1444.12 | 2.17 | |
| Gemfan 8040X3at 24.21 Vmotor at 115 °C | 24.21 | 20% | 1.02 | 117 | 24.59 | 4.76 |
| 24.13 | 30% | 3.87 | 438 | 94.19 | 4.65 | |
| 24.15 | 40% | 7.64 | 790 | 186.03 | 4.25 | |
| 24.15 | 50% | 12.5 | 1,147 | 304.42 | 3.77 | |
| 23.93 | 60% | 18.5 | 1,517 | 446.48 | 3.4 | |
| 23.77 | 70% | 28.43 | 2,041 | 681.46 | 3 | |
| 23.52 | 80% | 42.21 | 2,572 | 1001.29 | 2.57 | |
| 23.47 | 90% | 44.78 | 2,643 | 1059.78 | 2.49 | |
| 23.44 | 100% | 46.2 | 2,670 | 1082.92 | 2.47 | |
| Gemfan 7037X3at 24.16 Vmotor at 84 °C | 24.16 | 20% | 0.75 | 124 | 18.07 | 6.86 |
| 24.15 | 30% | 3.73 | 430 | 90.92 | 4.73 | |
| 24.04 | 40% | 7.36 | 757 | 178.46 | 4.24 | |
| 23.8 | 50% | 12.01 | 1,065 | 288.29 | 3.69 | |
| 23.93 | 60% | 16.97 | 1,388 | 409.6 | 3.39 | |
| 23.74 | 70% | 26.49 | 1,929 | 634.13 | 3.04 | |
| 23.55 | 80% | 39.4 | 2,496 | 935.81 | 2.67 | |
| 23.5 | 90% | 41.31 | 2,587 | 978.74 | 2.64 | |
| 23.47 | 100% | 42.95 | 2,642 | 1008.03 | 2.62 |
Source: GEPRC datasheet
Inside the motor
A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:
- Shaft. A high-strength 5 mm steel shaft with an M5 thread. (GEPRC product page, GEPRC drawing)
- Stator. 12N14P, with single-strand copper windings and N52H magnets. (GEPRC product page, GEPRC spec image)
- Bearings. NSK/NMB bearings, as GEPRC gives them. (GEPRC product page, GEPRC spec image)
How fast it spins
KV is the motor’s no-load speed per volt. With nothing on the shaft, the 1280KV version reaches about these speeds; a prop loads the motor and brings it down, typically to around 70–75% of these figures at full throttle.
| Battery | Volts | No-load rpm (KV × V) | Electrical frequency | ESC steps per second |
|---|---|---|---|---|
| 4S nominal | 14.8 | 18,944 | 2,210 Hz | 13,261 |
| 4S full | 16.8 | 21,504 | 2,509 Hz | 15,053 |
| 6S nominal | 22.2 | 28,416 | 3,315 Hz | 19,891 |
| 6S full | 25.2 | 32,256 | 3,763 Hz | 22,579 |
A 14-pole rotor has 7 pole pairs, so every turn of the shaft is 7 electrical cycles, and a six-step ESC switches the phases 42 times per turn.
About the 3D model
A generic outrunner drawn from GEPRC’s published sizes: the 28 × 10 mm stator, 33 mm bell, 23.1 mm height, 5 mm shaft, 19 mm mounting circle and 12 teeth and 14 magnets. Anything GEPRC doesn’t publish is typical for a motor this size, and the bell’s spoked top, the base and the inside are a generic design, not this motor’s. The colours are read off the maker’s product photos. There are no logos or markings: it is our drawing, not the maker’s.
Sources
- GEPRC: EM2810 1280KV/1350KV Motor (product page, with a spec list for each KV). Retrieved Oct 19, 2026.
- GEPRC: EM2810 specifications for both KVs (image on the product page). Retrieved Oct 19, 2026.
- GEPRC: EM2810 product drawing (image on the product page). Retrieved Oct 19, 2026.
- GEPRC: EM2810 datasheet, 1280KV on a Hoprop 7x3.7x3, Gemfan 8040X3 and 7535X3 and 1350KV on Gemfan 7037X3, 8040X3 and 7535X3, 20–100% throttle at about 24 V (image on the product page). Each row’s voltage is as measured; the table’s voltage is its 20% row. GEPRC gives one motor temperature per prop, without saying after how long. The 1350KV’s 8040X3 and 7535X3 labels may be swapped (see modelNotes).. Retrieved Oct 19, 2026.
- GEPRC: EM2810 1350KV product photo (first gallery image). Retrieved Oct 19, 2026.
- GEPRC: EM2810 from above, showing the five-spoke top (gallery image). Retrieved Oct 19, 2026.