7-inch long-range FPV motor

BrotherHobby Avenger 2806.5

A 7-inch long-range motor: 28 × 6.5 mm stator, hollow titanium shaft, 41 g with short leads, and 2,520 g of pull per motor on a 7-inch tri-blade on BrotherHobby’s 24 V bench (1300KV).

7-inch long range
6S (1300KV, 1700KV), 5S (1460KV, 1920KV) or 4S (1920KV)
6- and 7-inch tri-blade props

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 2806.5 motor drawn from BrotherHobby’s published sizes, not its exact design. Thrust, current and power are BrotherHobby’s bench figures for the HQ 7 × 3.5 × 3 prop at 24 V, read straight across between its throttle steps. Its data starts at 30% throttle.

Version

1300KV6S1460KV5S1700KV6S1920KV5S or 4S

BrotherHobby tested it with a 7-inch tri-blade (HQ 7 × 3.5 × 3) on 24 V and suggests a 6S 50 A ESC.

Max thrust: 2,520 g; HQ 7 × 3.5 × 3 prop, 24 V
Weight: 41 g; with short leads; the test reports give 47.59 g (1300KV) and 47.09 g (1700KV) with 160 mm leads, and 45.9 g (1920KV) with 200 mm leads
Peak current: 44.4 A; full throttle
Max power: 1,057 W; full throttle

from $26.99a motor at BrotherHobby

A set of four: $107.96

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

What it pulls

BrotherHobby’s own bench test, one line per prop. Drag across the chart to move the throttle; the model above follows.

At 60% with the HQ 7 × 3.5 × 3: 1,130 g of thrust, 12.7 A, 305 W, 3.71 g per watt.

On your quad

All-up weight650 g

15.5 : 1

Thrust to weight at full throttle: four motors pull 10,080 g with the HQ 7 × 3.5 × 3 at 24 V.

At 60% throttle they pull 4,520 g, 7.0 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 $26.99

2.5 kg of pull on 6S
On BrotherHobby’s 24 V bench the 1300KV pulled 2,520 g at full throttle on an HQ 7 × 3.5 × 3, drawing 44.4 A.
Source: BrotherHobby 1300KV test report
Hollow titanium shaft
A hollow titanium-alloy shaft with an M5 thread, in a 7075 aluminium bell cap and base.
Source: BrotherHobby product page
NMB 12 × 6 × 4 bearings
Japanese NMB bearings, 12 × 6 × 4 mm.
Source: BrotherHobby product page
N52H magnets, Kawasaki steel
N52H arc magnets around a stator of 0.2 mm Kawasaki silicon steel.
Source: BrotherHobby product page

What to pair it with

Our reading of BrotherHobby’s numbers, so your build matches what the motor was tested with.

ESC: BrotherHobby suggests a 6S 50 A ESC for the 1300KV and 1700KV, a 5S 60 A for the 1460KV and a 5S 50 A for the 1920KV (a 4S 60 A in its 2022 report). Its bench peaks ran from 44.4 A (1300KV) to 54.1 A (1920KV on 4S). (BrotherHobby setup suggestions, BrotherHobby 1300KV test report, BrotherHobby 1920KV test report, BrotherHobby load test data)
Props: 7-inch for the 1300KV and 1460KV (2,520 g at 24 V and 2,330 g at 20 V on an HQ 7 × 3.5 × 3), 6-inch for the 1700KV (2,440 g on an HQ 6 × 4 × 3 at 24 V). The 1920KV pulled 2,080 g on the 6-inch at 20 V and 1,999 g on an HQ 7 × 4 × 3 at 16.8 V. (BrotherHobby 1300KV test report, BrotherHobby 1700KV test report, BrotherHobby 1920KV test report, BrotherHobby load test data)
Battery: 6S for the 1300KV and 1700KV, 5S for the 1460KV, 5S or 4S for the 1920KV; BrotherHobby rates the motor for 4S–6S. (BrotherHobby product page, BrotherHobby setup suggestions, BrotherHobby 1920KV test report)
Frame: Four M3 holes on a 19 mm circle (19 × 19 mm); the shaft takes an M5 prop nut. (BrotherHobby product page, BrotherHobby 1300KV test report)

Where to buy

BrotherHobbythe maker’s store; same price for every KV
$26.99seen Oct 19, 2026
Visit
RaceDayQuads1300KV
price on the store’s page
Visit
Pyrodrone1300KV or 1700KV
price on the store’s page
Visit
Rotor Riot1300KV
price on the store’s page
Visit

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

Full specs

Spec	Value	Source
KV	1,300 rpm/V (also 1460KV, 1700KV and 1920KV)	BrotherHobby product page
Stator	28 × 6.5 mm (2806.5)	BrotherHobby 1300KV test report
Configuration	12N14P (12 stator slots, 14 magnet poles)	BrotherHobby product page
Battery	4S–6S LiPo (BrotherHobby tests the 1300KV and 1700KV on 24 V, the 1460KV and 1920KV on 20 V, and the 1920KV also on 16.8 V)	BrotherHobby product page
Weight	41 g (with short leads; the test reports give 47.59 g (1300KV) and 47.09 g (1700KV) with 160 mm leads, and 45.9 g (1920KV) with 200 mm leads)	BrotherHobby product page
Dimensions	φ32.9 × 33.1 mm (with shaft); 19.1 mm without it (from the drawing; the 2019 reports’ tables give φ33.2 × 33.6 mm)	BrotherHobby 1300KV test report, BrotherHobby 1920KV test report
Shaft	Hollow titanium alloy, 5 mm, M5 thread, protrudes 14 mm (one of BrotherHobby’s infographics on the page calls it a heat-treated alloy steel shaft)	BrotherHobby product page, BrotherHobby 1300KV test report
Mounting	4 × M3 holes on a 19 mm circle (19 × 19 mm)	BrotherHobby product page, BrotherHobby 1300KV test report
Bell	7075 aluminium bell cap and base	BrotherHobby product page
Magnets	N52H arc magnets	BrotherHobby product page
Bearings	NMB (Japan), 12 × 6 × 4 mm	BrotherHobby product page
Internal resistance	64.06 mΩ (1700KV 44.27 mΩ, 1920KV 43.9 mΩ)	BrotherHobby 1300KV test report
Idle current	1.01 A (at 10 V; 1700KV 1.38 A, 1920KV 1.43 A)	BrotherHobby 1300KV test report
Peak current	44.4 A (full throttle on an HQ 7 × 3.5 × 3 at 24 V; 1700KV 49.2 A (HQ 6 × 4 × 3, 24 V); 1460KV 50.1 A and 1920KV 48.1 A at 20 V; 1920KV 54.1 A at 16.8 V)	BrotherHobby 1300KV test report, BrotherHobby 1700KV test report, BrotherHobby 1920KV test report, BrotherHobby load test data
Max power	1,056.72 W (1700KV 1170.96 W; 1920KV 908.88 W at 16.8 V)	BrotherHobby 1300KV test report, BrotherHobby 1700KV test report, BrotherHobby 1920KV test report
Leads	18 AWG, 20 cm (the 2019 test reports give 18 AWG, 160 mm; the 1920KV report 20 AWG, 200 mm)	BrotherHobby product page

Bench data

Redrawn from BrotherHobby’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.

1300KV on 6S, 24 V1 prop

Prop	Throttle	Voltage (V)	Current (A)	RPM	Thrust (g)	Power (W)	Efficiency (g/W)
HQ 7 × 3.5 × 3 (7-inch, three blades)motor at 102.2 °C	30%	24	2.3	8270	310	55.2	5.62
	40%	24	4.6	10517	530	110.4	4.8
	50%	24	7.2	12132	750	172.8	4.34
	60%	24	12.7	14922	1,130	304.8	3.71
	70%	23.9	18.3	16785	1,430	437.37	3.27
	80%	23.9	28.8	19216	1,940	688.32	2.82
	90%	23.8	37.5	20631	2,290	892.5	2.57
	100%	23.8	44.4	21691	2,520	1056.72	2.38

Source: BrotherHobby 1300KV test report

1460KV on 5S, 20 V1 prop

Prop	Throttle	Voltage (V)	Current (A)	RPM	Thrust (g)	Power (W)	Efficiency (g/W)
HQ 7 × 3.5 × 3 (7-inch, three blades)motor at 108 °C	30%	20	3	8462	320	60	5.33
	40%	20	5.8	10707	540	116	4.66
	50%	20	9.2	12468	750	184	4.08
	60%	20	15.1	14640	1,060	302	3.51
	70%	19.9	22	16502	1,390	437.8	3.17
	80%	19.9	32.3	18558	1,740	642.77	2.71
	90%	19.8	43.7	20191	2,100	865.26	2.43
	100%	19.7	50.1	20913	2,330	986.97	2.36

Source: BrotherHobby load test data

1700KV on 6S, 24 V1 prop

Prop	Throttle	Voltage (V)	Current (A)	RPM	Thrust (g)	Power (W)	Efficiency (g/W)
HQ 6 × 4 × 3 (6-inch, three blades)motor at 109.8 °C	30%	24	3.1	11019	320	74.4	4.3
	40%	24	5.7	13871	520	136.8	3.8
	50%	24	10.6	17193	840	254.4	3.3
	60%	23.9	15.5	20064	1,110	370.45	3
	70%	23.9	20.8	22273	1,330	497.12	2.68
	80%	23.9	33.1	25657	1,780	791.09	2.25
	90%	23.8	42.1	28101	2,110	1001.98	2.11
	100%	23.8	49.2	29610	2,440	1170.96	2.08

Source: BrotherHobby 1700KV test report

1920KV on 5S or 4S2 props

Prop	Throttle	Voltage (V)	Current (A)	RPM	Thrust (g)	Power (W)	Efficiency (g/W)
HQ 6 × 4 × 3 (6-inch, three blades)at 20 Vmotor at 95.9 °C	30%	20	3.3	10521	290	66	4.39
	40%	20	5.6	12868	450	112	4.02
	50%	20	9.5	15363	670	190	3.53
	60%	19.9	14.6	18325	910	290.54	3.13
	70%	19.9	21	20980	1,160	417.9	2.78
	80%	19.9	32.8	24129	1,610	652.72	2.47
	90%	19.8	44.3	26478	1,940	877.14	2.21
	100%	19.7	48.1	27547	2,080	947.57	2.2
HQ 7 × 4 × 3 (7-inch, three blades)at 16.8 Vmotor at 73 °C	30%	16.8	5.4	9038	438	90.72	4.83
	40%	16.8	9.5	10912	649	159.6	4.07
	50%	16.8	14.9	12688	884	250.32	3.53
	60%	16.8	22.4	14404	1,137	376.32	3.02
	70%	16.8	32.4	15939	1,437	544.32	2.64
	80%	16.8	43.6	17304	1,692	732.48	2.31
	90%	16.8	50.3	18553	1,935	845.04	2.29
	100%	16.8	54.1	19032	1,999	908.88	2.2

Source: BrotherHobby load test data, BrotherHobby 1920KV 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:

Bell. 7075 aluminium bell cap, φ32.9 mm. (BrotherHobby product page)
Shaft. Hollow titanium alloy, 5 mm with an M5 thread, standing 14 mm above the bell. (BrotherHobby 1300KV test report)
Magnets. N52H arc magnets, 14 poles. (BrotherHobby product page)
Stator. 28 × 6.5 mm with 12 slots, in 0.2 mm Kawasaki silicon steel. (BrotherHobby product page)
Bearings. NMB, 12 × 6 × 4 mm. (BrotherHobby product page)
Base. 7075 aluminium, with four M3 holes on a 19 mm circle. (BrotherHobby product page)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 1300KV 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	19,240	2,245 Hz	13,468
4S full	16.8	21,840	2,548 Hz	15,288
6S nominal	22.2	28,860	3,367 Hz	20,202
6S full	25.2	32,760	3,822 Hz	22,932

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 BrotherHobby’s published sizes: the 28 × 6.5 mm stator, 32.9 mm bell, 19.1 mm height, 5 mm shaft, 19 mm mounting circle and 12 teeth and 14 magnets. Anything BrotherHobby 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.