8–10-inch cinematic FPV motor

T-Motor Velox V3115

A 3115 for 8–11-inch X4 and X8 cinematic drones, in four windings from 400KV for 12S to 1050KV for 6S; the 900KV pulls 4.6 kg per motor on T-Motor's 24 V bench with a 10-inch prop.

8–11-inch cinematic X4 and X8 drones
heavy camera payloads
3S–12S, by KV

Drawing the 3D model…

Throttle60%

The spin is an illustration: the model turns at 1/600 of the no-load speed, and it is a generic 3115 motor drawn from T-Motor’s published sizes, not its exact design. Thrust, current and power are T-Motor’s bench figures for the T10.5X5-3 prop at 24 V, read straight across between its throttle steps. Its data starts at 10% throttle.

Version

400KV6S–12S640KV4S–8S900KV4S–6S1050KV3S–6S

For 9–11-inch cinematic drones; benched at 24 V and 16 V.

Max thrust: 4,735 g; T10.5X5-3 prop, 24 V
Weight: 113.1 g; with leads; 400KV 113.4 g, 640KV 113.3 g, 1050KV 112.7 g. T-Hobby's page gives 115.4–116.3 g
Peak current: 83.3 A; full throttle
Max power: 1,894 W; full throttle

from $45.90a motor at T-Motor

A set of four: $183.60

Price seen Oct 19, 2026. Plain links: we earn nothing from them.

What it pulls

T-Motor’s own bench test, one line per prop. Drag across the chart to move the throttle; the model above follows.

At 60% with the T10.5X5-3: 2,398 g of thrust, 28.6 A, 668 W, 4.22 g per watt.

On your quad

All-up weight650 g

29.1 : 1

Thrust to weight at full throttle: four motors pull 18,940 g with the T10.5X5-3 at 24 V.

At 60% throttle they pull 9,590 g, 14.8 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 $45.90

Built to run cool
T-Motor says its heat-dissipation design keeps the motor at lower temperatures in flight.
Source: T-Motor product page
Coated stator core
T-Motor's first stator core finished by electrophoresis, which it says resists corrosion in humid conditions.
Source: T-Motor product page
Anti-slip top
A large anti-slip groove pattern on the top that T-Motor says suits a variety of props.
Source: T-Motor product page
Four windings
400KV for 6–12S, 640KV for 4–8S, 900KV for 4–6S and 1050KV for 3–6S.
Source: T-Motor product page
Bench data for every KV
Thrust, current, power, RPM and torque in 10% steps on 8.5- to 10.5-inch props at up to 48 V.
Source: T-Motor test report

What to pair it with

Our reading of T-Motor’s numbers, so your build matches what the motor was tested with.

ESC: Peak current over 10 s is 41 A for the 400KV, 62 A for the 640KV, 83 A for the 900KV and 83.6 A for the 1050KV. T-Hobby suggests T-Motor's V70A SE 4-in-1, Flame 60A or F60A Mini. (T-Motor spec table, T-Hobby product page)
Props: T-Hobby recommends T-Motor's T8.5, T9.5 and T10.5 cinematic props. At full throttle on 24 V the 900KV pulls 4605 g on the HQ1050-3 and 4246 g on the T9.5X5-3. (T-Hobby product page, T-Motor test report)
Battery: 6–12S for the 400KV, 4–8S for the 640KV, 4–6S for the 900KV, 3–6S for the 1050KV. T-Hobby suggests T-Motor's 400KV on 12S with T10.5 props for an 11-inch X8 carrying a cinema camera. (T-Motor product page, T-Hobby product page)
Frame: 8–11-inch X4 and X8 cinematic drones. Four M3 screws on a 19 mm circle. (T-Motor product page, T-Motor drawing)

Where to buy

T-Motorthe maker's store (Tmotorhobby)
$45.90seen Oct 19, 2026
Visit
T-HobbyT-Motor's hobby-brand store; price shown for 400KV
$49.90seen Oct 19, 2026
Visit

Plain links, not affiliate links. Prices change; the store’s page has the current one.

Full specs

Spec	Value	Source
KV	900 rpm/V (also 400KV, 640KV and 1050KV)	T-Motor spec table
Stator	31 × 15 mm (3115)	T-Hobby product page
Configuration	12N14P (12 stator slots, 14 magnet poles)	T-Motor spec table
Battery	4S–6S LiPo (400KV: 6S–12S; 640KV: 4S–8S; 1050KV: 3S–6S)	T-Motor product page
Weight	113.1 g (with leads; 400KV 113.4 g, 640KV 113.3 g, 1050KV 112.7 g. T-Hobby's page gives 115.4–116.3 g)	T-Motor spec table
Dimensions	Φ37.2 × 51.1 mm (51.1 mm is the full length, shaft included)	T-Motor spec table
Shaft	5 mm inside and outside; M5 thread 8 mm long, protrudes 17.5 mm (the thread and lengths are from the drawing (S2). T-Hobby's page says 6 mm inside, M5 outside, titanium alloy)	T-Motor spec table
Mounting	4 × M3 holes on a 19 mm circle	T-Motor drawing
Internal resistance	38.08 mΩ (400KV 145.38 mΩ, 640KV 67.13 mΩ, 1050KV 33.84 mΩ)	T-Motor spec table
Idle current	1.57 A (at 10 V; 400KV 0.59 A, 640KV 1.10 A, 1050KV 1.79 A)	T-Motor spec table
Peak current	83 A (for 10 s; 400KV 41 A, 640KV 62 A, 1050KV 83.6 A. T-Hobby's page gives 60 s figures: 33–63.6 A)	T-Motor spec table
Max power	1,894 W (for 10 s; 400KV 1982 W, 640KV 1927 W, 1050KV 1903 W)	T-Motor spec table
Leads	18 AWG, 250 mm	T-Motor spec table
Bearings	EZO	T-Hobby product page
In the box	1 × motor, 1 × parts bag (prop nut, M3×8 screws, washers and O-ring)	T-Hobby product page

Bench data

Redrawn from T-Motor’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.

400KV on 6S–12S4 props

Prop	Throttle	Voltage (V)	Current (A)	Power (W)	RPM	Thrust (g)	Torque (N·m)	Efficiency (g/W)
T10.5X5-3 (T-Motor 10.5 × 5, 3-blade)at 48 V	10%	48	0.22	10	1880	42	0.02	4.1
	20%	48	0.73	35	3644	272	0.06	7.8
	30%	48	1.77	85	5187	619	0.11	7.3
	40%	48	3.72	178	6758	1,099	0.19	6.2
	50%	48	6.7	321	8220	1,646	0.29	5.1
	70%	48	15.99	764	10821	2,931	0.51	3.8
	80%	48	23.3	1111	11851	3,555	0.62	3.2
	90%	48	31.01	1474	13011	4,285	0.76	2.9
	100%	47	41.84	1982	13713	4,817	0.85	2.4
HQ1050-3 (HQProp 10 × 5, 3-blade)at 48 V	10%	48	0.22	10	2023	44	0.02	4.2
	20%	48	0.75	36	3791	254	0.05	7
	30%	48	1.69	81	5241	559	0.1	6.9
	40%	48	3.56	171	6820	1,018	0.18	6
	50%	48	6.43	308	8295	1,552	0.28	5
	80%	48	22.76	1085	12129	3,514	0.62	3.2
	90%	48	30.35	1443	13224	4,213	0.75	2.9
	100%	47	41.12	1949	14013	4,781	0.85	2.5
T9.5X5-3 (T-Motor 9.5 × 5, 3-blade)at 48 V	10%	48	0.21	10	2134	35	0.02	3.5
	20%	48	0.76	36	4101	238	0.05	6.5
	30%	48	1.46	70	5472	478	0.08	6.8
	40%	48	3.11	149	7101	856	0.14	5.7
	50%	48	5.51	264	8640	1,300	0.22	4.9
	60%	48	8.61	412	10049	1,784	0.29	4.3
	70%	48	12.15	582	11478	2,358	0.39	4.1
	80%	48	17.44	833	12860	2,986	0.5	3.6
	90%	48	23.77	1133	14133	3,638	0.61	3.2
	100%	48	31.42	1493	15291	4,299	0.72	2.9
T10.5X5-3 (T-Motor 10.5 × 5, 3-blade)at 32 V	10%	32	0.15	5	1199	11	0.01	2.4
	20%	32	0.49	16	2613	117	0.03	7.4
	30%	32	1.04	34	3661	285	0.05	8.5
	40%	32	1.91	61	4667	502	0.09	8.2
	50%	32	3.72	119	5844	825	0.14	6.9
	60%	32	5.5	176	6826	1,144	0.2	6.5
	70%	32	8.35	267	7853	1,529	0.26	5.7
	80%	32	11.82	377	8748	1,916	0.33	5.1
	90%	32	15.88	506	9661	2,350	0.4	4.6
	100%	32	20.62	655	10503	2,798	0.48	4.3

Source: T-Motor test report

640KV on 4S–8S4 props

Prop	Throttle	Voltage (V)	Current (A)	Power (W)	RPM	Thrust (g)	Torque (N·m)	Efficiency (g/W)
T10.5X5-3 (T-Motor 10.5 × 5, 3-blade)at 32 V	10%	32	0.33	11	1738	37	0.02	3.5
	20%	32	1.25	40	3686	285	0.06	7.1
	30%	32	3.13	100	5243	655	0.11	6.5
	40%	32	5.94	190	6784	1,127	0.19	5.9
	50%	32	10.67	341	8262	1,705	0.29	5
	60%	32	16.5	525	9432	2,218	0.38	4.2
	70%	32	25.2	799	10829	2,952	0.51	3.7
	80%	32	34.25	1080	11770	3,559	0.61	3.3
	90%	31	47.53	1491	12890	4,265	0.74	2.9
	100%	31	61.83	1927	13632	4,797	0.84	2.5
HQ1050-3 (HQProp 10 × 5, 3-blade)at 32 V	10%	32	0.33	11	1912	44	0.02	4.1
	20%	32	1.25	40	3844	268	0.05	6.7
	30%	32	2.95	94	5346	586	0.11	6.2
	40%	32	5.66	181	6841	1,034	0.18	5.7
	50%	32	10.31	329	8350	1,591	0.28	4.8
	60%	32	16.1	513	9540	2,107	0.37	4.1
	70%	32	24.53	778	10945	2,825	0.5	3.6
	80%	32	35.22	1112	12023	3,450	0.61	3.1
	90%	31	46.55	1461	13090	4,126	0.73	2.8
	100%	31	60.77	1895	13871	4,693	0.83	2.5
T9.5X5-3 (T-Motor 9.5 × 5, 3-blade)at 32 V	10%	32	0.33	11	2030	32	0.01	3
	20%	32	1.21	39	4108	242	0.04	6.2
	30%	32	2.64	85	5642	518	0.09	6.1
	40%	32	5.01	160	7183	882	0.14	5.5
	50%	32	8.72	279	8732	1,333	0.22	4.8
	60%	32	13.91	443	10151	1,821	0.3	4.1
	70%	32	19.43	618	11554	2,389	0.39	3.9
	80%	32	27.77	879	12900	3,018	0.5	3.4
	90%	32	37.44	1181	14120	3,637	0.6	3.1
	100%	31	49.03	1537	15211	4,280	0.71	2.8
T10.5X5-3 (T-Motor 10.5 × 5, 3-blade)at 24 V	10%	24	0.25	6	1190	2	0.01	0.4
	20%	24	0.89	21	2841	139	0.03	6.5
	30%	24	1.95	47	4050	345	0.06	7.4
	40%	24	3.97	95	5289	644	0.11	6.8
	50%	24	6.54	157	6432	995	0.17	6.3
	60%	24	10.58	253	7590	1,416	0.24	5.6
	70%	24	16.24	386	8597	1,835	0.31	4.8
	80%	24	22.33	529	9596	2,304	0.39	4.4
	90%	24	29.83	704	10534	2,791	0.48	4
	100%	23	38.71	908	11405	3,288	0.57	3.6

Source: T-Motor test report

900KV on 4S–6S5 props

Prop	Throttle	Voltage (V)	Current (A)	Power (W)	RPM	Thrust (g)	Torque (N·m)	Efficiency (g/W)
T10.5X5-3 (T-Motor 10.5 × 5, 3-blade)at 24 V	10%	24	0.5	12	1649	28	0.03	2.3
	20%	24	1.88	45	3767	305	0.06	6.8
	30%	24	4.56	109	5379	691	0.12	6.3
	40%	24	9.39	224	6958	1,215	0.21	5.4
	50%	24	15.86	377	8391	1,782	0.31	4.7
	90%	23	66.87	1540	12795	4,244	0.74	2.8
	100%	23	83.3	1894	13479	4,735	0.82	2.5
HQ1050-3 (HQProp 10 × 5, 3-blade)at 24 V	10%	24	0.49	12	1901	28	0.02	2.4
	20%	24	1.86	45	3936	282	0.06	6.3
	30%	24	4.35	104	5450	619	0.12	5.9
	40%	24	9.22	220	7048	1,106	0.2	5
	50%	24	15.23	363	8482	1,663	0.29	4.6
	70%	24	35.77	840	11009	2,907	0.51	3.5
	80%	23	50.8	1182	11930	3,439	0.6	2.9
	90%	23	65.69	1514	12968	4,107	0.72	2.7
	100%	23	82.99	1889	13712	4,605	0.82	2.4
T9.5X5-3 (T-Motor 9.5 × 5, 3-blade)at 24 V	10%	24	0.49	12	2024	29	0.02	2.5
	20%	24	1.8	43	4233	256	0.05	5.9
	30%	24	3.88	93	5790	547	0.1	5.9
	40%	24	7.4	177	7367	933	0.16	5.3
	50%	24	12.55	299	8930	1,404	0.23	4.7
	60%	24	20.69	491	10368	1,902	0.32	3.9
	70%	24	28.85	681	11733	2,480	0.41	3.6
	80%	23	40.61	951	13036	3,084	0.51	3.2
	90%	23	54.17	1258	14176	3,663	0.61	2.9
	100%	23	70.01	1609	15190	4,246	0.71	2.6
HQ9050-3 (HQProp 9 × 5, 3-blade)at 24 V	10%	24	0.5	12	2132	47	0.02	4
	20%	24	1.81	44	4318	275	0.05	6.3
	30%	24	3.88	93	5834	546	0.1	5.9
	40%	24	7.39	177	7389	916	0.16	5.2
	50%	24	12.66	302	8944	1,384	0.23	4.6
	60%	24	20.68	491	10366	1,885	0.32	3.8
	70%	24	29.07	686	11750	2,454	0.42	3.6
	80%	23	41.09	962	13043	3,047	0.52	3.2
	90%	23	54.95	1275	14144	3,626	0.62	2.8
	100%	23	71.15	1634	15140	4,199	0.73	2.6
T10.5X5-3 (T-Motor 10.5 × 5, 3-blade)at 16 V	10%	16	0.34	6	985	11	0.01	2
	20%	16	1.19	19	2602	121	0.03	6.3
	30%	16	2.52	41	3745	301	0.06	7.4
	40%	16	4.85	78	4857	552	0.1	7.1
	50%	16	8.19	131	5987	861	0.15	6.6
	60%	16	13.7	218	7047	1,232	0.21	5.7
	70%	16	19.47	308	8008	1,602	0.28	5.2
	80%	16	27.54	432	8870	1,988	0.34	4.6
	90%	16	36.45	566	9728	2,399	0.41	4.2
	100%	15	47.06	723	10520	2,820	0.49	3.9

Source: T-Motor test report

1050KV on 3S–6S5 props

Prop	Throttle	Voltage (V)	Current (A)	Power (W)	RPM	Thrust (g)	Torque (N·m)	Efficiency (g/W)
HQ1045-3 (HQProp 10 × 4.5, 3-blade)at 24 V	10%	24	0.65	16	2173	27	0.02	1.8
	20%	24	2.35	57	4643	284	0.06	5
	30%	24	4.98	120	6378	621	0.11	5.2
	40%	24	9.41	225	8049	1,068	0.17	4.7
	50%	24	16.7	398	9728	1,627	0.26	4.1
	60%	24	25.6	607	11301	2,263	0.35	3.7
	70%	24	36.25	853	12725	2,914	0.46	3.4
	80%	23	49.96	1166	14012	3,586	0.56	3.1
	90%	23	66.67	1539	15073	4,232	0.66	2.8
	100%	23	83.46	1903	15965	4,804	0.76	2.5
T9.5X5-3 (T-Motor 9.5 × 5, 3-blade)at 24 V	10%	24	0.63	15	2212	38	0.02	2.6
	20%	24	2.32	56	4529	304	0.06	5.5
	30%	24	5.02	120	6230	645	0.11	5.4
	40%	24	9.78	234	7962	1,099	0.18	4.7
	50%	24	17.28	411	9572	1,624	0.27	4
	60%	24	26.61	629	11103	2,217	0.36	3.5
	70%	23	37.46	880	12453	2,813	0.46	3.2
	80%	23	51.33	1195	13723	3,455	0.57	2.9
	90%	23	67.94	1564	14793	4,024	0.67	2.6
	100%	23	83.5	1898	15628	4,537	0.76	2.4
HQ9050-3 (HQProp 9 × 5, 3-blade)at 24 V	10%	24	0.63	15	2345	37	0.02	2.5
	20%	24	2.3	55	4642	298	0.06	5.4
	30%	24	5	120	6271	621	0.11	5.2
	40%	24	9.72	232	7958	1,062	0.18	4.6
	50%	24	17.29	411	9564	1,582	0.27	3.8
	60%	24	26.75	632	11092	2,157	0.37	3.4
	70%	23	37.78	887	12425	2,731	0.47	3.1
	80%	23	51.87	1207	13692	3,359	0.58	2.8
	90%	23	68.78	1583	14724	3,921	0.68	2.5
	100%	23	83.61	1899	15568	4,409	0.77	2.3
T8.5X5-3 (T-Motor 8.5 × 5, 3-blade)at 24 V	10%	24	0.62	15	2546	38	0.01	2.6
	20%	24	2.25	54	5112	279	0.05	5.2
	30%	24	4.66	112	6869	561	0.09	5
	40%	24	7.93	190	8423	877	0.14	4.6
	50%	24	13.52	322	10152	1,296	0.2	4
	60%	24	20.67	490	11898	1,800	0.28	3.7
	70%	24	29.6	698	13552	2,351	0.37	3.4
	80%	23	40.68	953	14946	2,878	0.45	3
	90%	23	54.38	1263	16248	3,423	0.54	2.7
	100%	23	69.75	1604	17443	3,977	0.63	2.5
HQ1045-3 (HQProp 10 × 4.5, 3-blade)at 16 V	10%	16	0.42	7	1260	1	0.01	0.2
	20%	16	1.48	24	3207	105	0.03	4.4
	30%	16	2.99	48	4576	283	0.05	5.9
	40%	16	4.96	79	5659	474	0.08	6
	50%	16	8.15	129	6807	739	0.12	5.7
	60%	16	12.6	197	7985	1,060	0.17	5.4
	70%	15	18.46	283	8967	1,373	0.22	4.9
	80%	15	25.55	390	10033	1,754	0.27	4.5
	90%	15	33.71	507	10940	2,122	0.33	4.2
	100%	15	43.82	658	11964	2,566	0.4	3.9

Source: T-Motor test report

Inside the motor

A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:

Stator. 31 mm across and 15 mm tall, 12 slots under 14 magnet poles (12N14P), with a core coated by electrophoresis. (T-Motor product page)
Bell. 37.2 mm across, black, with a red top of radial fins round a knurled, anti-slip centre. (T-Motor drawing)
Shaft. 5 mm inside and outside by T-Motor's table, with 8 mm of M5 thread; it stands 17.5 mm above the bell. (T-Motor drawing)
Base. Four M3 holes on a 19 mm circle; three 18 AWG leads, 250 mm long. (T-Motor drawing)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 900KV 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	13,320	1,554 Hz	9,324
4S full	16.8	15,120	1,764 Hz	10,584
6S nominal	22.2	19,980	2,331 Hz	13,986
6S full	25.2	22,680	2,646 Hz	15,876

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 T-Motor’s published sizes: the 31 × 15 mm stator, 37.2 mm bell, 33.6 mm height, 5 mm shaft, 19 mm mounting circle and 12 teeth and 14 magnets. Anything T-Motor 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

T-Motor: V3115 Cinematic FPV Motor product page on its Tmotorhobby store (description, price; feature images with the KV guide, drawing, spec table, test report and contents are images on the page). Retrieved Oct 19, 2026.
T-Motor: V3115 product drawing (image on the product page, S1). Retrieved Oct 19, 2026.
T-Motor: V3115 spec table for all four KVs (image on the product page, S1). Retrieved Oct 19, 2026.
T-Motor: V3115 test report, four images on the product page (S1), one per KV, starting with this one. Columns as T-Motor gives them: voltage (whole volts), current, power, RPM, thrust in g, torque, efficiency; no motor temperatures given. Retrieved Oct 19, 2026.
T-Hobby (T-Motor's hobby brand): Velox V3115 product page (description, recommended setup, packing list, price). Retrieved Oct 19, 2026.

What it pulls

On your quad

What you get for $45.90

Built to run cool

Coated stator core

Anti-slip top

Four windings

Bench data for every KV

What to pair it with

Where to buy

Full specs

Bench data

400KV on 6S–12S4 props

640KV on 4S–8S4 props

900KV on 4S–6S5 props

1050KV on 3S–6S5 props

Inside the motor

How fast it spins

About the 3D model

Sources