2- to 3-inch whoop and toothpick motor
Flywoo ROBO 1303
A 6.1 g motor for 2- to 3-inch whoops and toothpicks on 2S–4S; on Flywoo's 11.1 V bench it pulls 355 g with a Gemfan D51 four-blade, and 303–337 g with 3-inch props at 7.4 V.
- 2- to 3-inch whoops and toothpicks
- 2S–4S
- Gemfan 2-inch, D51, 2.5-inch and 3-inch props
The spin is an illustration: the model turns at 1/600 of the no-load speed, and it is a generic 1303 motor drawn from Flywoo’s published sizes, not its exact design. Thrust, current and power are Flywoo’s bench figures for the GF D51*4 prop at 11.1 V, read straight across between its throttle steps. Its data starts at 50% throttle.
- Max thrust
- 355 g
- GF D51*4 prop, 11.1 V
- Weight
- 6.1 g
- the spec list says without wire; Flywoo's scale image (S6) shows 6.1 g with the leads coiled on the pan
- Peak current
- 22.5 A
- full throttle
- Max power
- 250 W
- full throttle
from $14.99a motor at Flywoo
A set of four: $59.96
Price seen Oct 19, 2026. Plain links: we earn nothing from them.
What it pulls
Flywoo’s own bench test, one line per prop. Drag across the chart to move the throttle; the model above follows.
At 60% with the GF D51*4: 197 g of thrust, 9.4 A, 104 W, 2.14 g per watt.
On your quad
2.2 : 1
Thrust to weight at full throttle: four motors pull 1,420 g with the GF D51*4 at 11.1 V.
At 60% throttle they pull 786 g, 1.2 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 $14.99
Two NSK bearings
Flywoo says the dual-bearing design holds the shaft steadier, with less noise and vibration.
Source: Flywoo product page
N52H arc magnets
Customised N52H arc magnets in a 7075 aluminium bell, anodised in two colours.
Source: Flywoo product page
200 °C winding
Copper wire rated for 200 °C on Kawasaki silicon steel.
Source: Flywoo product page
Solder pads
The leads are soldered to pads on the base, which Flywoo says stops them pulling out and means replacing the stator less often.
Source: Flywoo product page
Bench numbers
355 g at 22.5 A with a Gemfan D51 four-blade at 11.1 V; 337 g at 16 A with a Gemfan 3028 three-blade at 7.4 V.
Source: Flywoo bench table
What to pair it with
Our reading of Flywoo’s numbers, so your build matches what the motor was tested with.
- ESC
- Up to 22.5 A per motor at full throttle on Flywoo's 11.1 V bench and up to 17.7 A at 7.4 V. Its two 11.1 V runs reached 80 °C and 85 °C after 3 s. (Flywoo bench table)
- Props
- Flywoo tested Gemfan 2020 four-blade, D51 four-blade, 2540 three-blade, 3018 two- and three-blade and 3028 three-blade props. (Flywoo bench table)
- Battery
- 2S–4S; Flywoo's bench is at 7.4 V and 11.1 V. (Flywoo product page, Flywoo bench table)
- Frame
- Four M2 screws in a 9 × 9 mm pattern; a pack of screws comes with each motor. (Flywoo product page, Flywoo drawing)
Where to buy
- Flywoothe maker's store; 1 motor ($69.99 for 5)$14.99seen Oct 19, 2026Visit
- GetFPVprice on the store’s pageVisit
Plain links, not affiliate links. Prices change; the store’s page has the current one.
Full specs
| Spec | Value | Source |
|---|---|---|
| KV | 6,000 rpm/V | Flywoo product page |
| Stator | 13 × 3 mm (1303), Kawasaki silicon steel | Flywoo product page |
| Battery | 2S–4S LiPo | Flywoo product page |
| Weight | 6.1 g (the spec list says without wire; Flywoo's scale image (S6) shows 6.1 g with the leads coiled on the pan) | Flywoo product page, Flywoo scale image |
| Dimensions | φ16.5 × 10.1 mm | Flywoo drawing |
| Shaft | 1.5 mm | Flywoo product page, Flywoo drawing |
| Mounting | 4 × M2, 9 × 9 mm pattern (opposite holes 9 mm apart) | Flywoo product page, Flywoo drawing |
| Bell | 7075 aluminium, CNC machined, anodised in two colours; 4 × M2 holes 5 mm apart in the top (the holes in the top are from the drawing (S2)) | Flywoo product page, Flywoo drawing |
| Magnets | N52H arc magnets | Flywoo product page |
| Bearings | NSK, two bearings (dual-bearing design) | Flywoo product page |
| Winding | copper wire rated for 200 °C | Flywoo product page |
| Peak current | 22.5 A (100% throttle, Gemfan D51 four-blade, 11.1 V; the highest current on Flywoo's bench) | Flywoo bench table |
| Max power | 249.8 W (the same run) | Flywoo bench table |
| Leads | 150 mm, soldered to pads on the base | Flywoo lead image, Flywoo product page |
| In the box | 1 motor, 1 pack of screws | Flywoo product page |
Bench data
Redrawn from Flywoo’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.
6000KV on 2S–4S8 props
| Prop | Throttle | Current (A) | Thrust (g) | Power (W) | Efficiency (g/W) |
|---|---|---|---|---|---|
| GF D51*4 (Gemfan D51, 4-blade)at 11.1 Vmotor at 85 °C | 50% | 6.1 | 157 | 67.7 | 2.319 |
| 100% | 22.5 | 355 | 249.8 | 1.427 | |
| GF2020R*4 (Gemfan 2020, 4-blade)at 11.1 Vmotor at 80 °C | 50% | 5 | 144 | 55.5 | 2.595 |
| 100% | 19 | 349 | 210.9 | 1.655 | |
| GF3028*3 (Gemfan 3028, 3-blade)at 7.4 Vmotor at 62 °C | 50% | 3.8 | 135 | 28.1 | 4.801 |
| 100% | 16 | 337 | 118.4 | 2.846 | |
| GF3018*2 (Gemfan 3018, 2-blade)at 7.4 Vmotor at 65 °C | 50% | 3.6 | 114 | 26.6 | 4.279 |
| 100% | 17.7 | 308 | 131 | 2.352 | |
| GF3018*3 (Gemfan 3018, 3-blade)at 7.4 Vmotor at 59 °C | 50% | 3.1 | 124 | 22.9 | 5.405 |
| 100% | 13.4 | 303 | 99.2 | 3.056 | |
| GF2540*3 (Gemfan 2540, 3-blade)at 7.4 Vmotor at 64 °C | 50% | 4.3 | 110 | 31.8 | 3.457 |
| 100% | 17.5 | 269 | 129.5 | 2.077 | |
| GF D51*4 (Gemfan D51, 4-blade)at 7.4 Vmotor at 57 °C | 50% | 2.9 | 86 | 21.5 | 4.007 |
| 100% | 11.9 | 223 | 88.1 | 2.532 | |
| GF2020R*4 (Gemfan 2020, 4-blade)at 7.4 Vmotor at 56 °C | 50% | 2.7 | 83 | 20 | 4.154 |
| 100% | 10.35 | 219 | 76.6 | 2.859 |
Source: Flywoo bench table
Inside the motor
A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:
- Bell. CNC-machined 7075 aluminium, anodised in two colours. (Flywoo product page)
- Top. Eight spokes, with four M2 holes 5 mm apart around the 1.5 mm shaft. (Flywoo drawing)
- Magnets. Customised N52H arc magnets. (Flywoo product page)
- Stator. 13 mm across and 3 mm tall, Kawasaki silicon steel, wound with copper wire rated for 200 °C. (Flywoo product page)
- Bearings. Two NSK bearings. (Flywoo product page)
- Leads. 150 mm, soldered to pads on the base. (Flywoo lead image)
How fast it spins
KV is the motor’s no-load speed per volt. With nothing on the shaft, the 6000KV 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 | 88,800 | 10,360 Hz | 62,160 |
| 4S full | 16.8 | 100,800 | 11,760 Hz | 70,560 |
| 6S nominal | 22.2 | 133,200 | 15,540 Hz | 93,240 |
| 6S full | 25.2 | 151,200 | 17,640 Hz | 105,840 |
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 Flywoo’s published sizes: the 13 × 3 mm stator, 16.5 mm bell, 10.1 mm height, 1.5 mm shaft and 9 mm mounting circle. Anything Flywoo 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
- Flywoo: ROBO 1303 6000KV 2-4S Fpv Motor (product page, with its parameter list and feature images; the text calls it the RB 1303). Retrieved Oct 19, 2026.
- Flywoo: ROBO 1303 dimensional drawing (gallery image on the product page). The copy of the drawing in the description (https://img-va.myshopline.com/image/store/1673593876355/8-en.jpeg) marks the base holes 5 mm apart and one pair of top holes 9 mm apart; this gallery copy marks them 9 mm and 5 mm, which matches the spec list's 9×9 mm mounting.. Retrieved Oct 19, 2026.
- Flywoo: ROBO 1303 product parameters (bench table image on the product page). 50% and 100% throttle at 7.4 V for six props and at 11.1 V for two; temperatures are after 3 s at full throttle. In the 11.1 V GF D51*4 table the full-throttle efficiency (1.427 g/W) is a little above 355 g ÷ 249.8 W (1.421); copied as printed.. Retrieved Oct 19, 2026.
- Flywoo: ROBO 1303 main product image (a render, the first in the gallery), used for finish. Retrieved Oct 19, 2026.
- Flywoo: ROBO 1303 lead-length image (gallery on the product page). Retrieved Oct 19, 2026.
- Flywoo: ROBO 1303 on a scale (gallery image on the product page): 6.1 g, drawn with its leads coiled on the pan. Retrieved Oct 19, 2026.
