Drone Motors

7-inch long-range FPV motor

BrotherHobby Venom 2806.5

A fully enclosed 2806.5 for 6- and 7-inch props on 6S: 28 × 6.5 mm stator, 52 g with leads, and up to 2,520 g of thrust per motor on BrotherHobby’s bench (1300KV on an HQ 7-inch tri-blade at 24 V).

  • 7-inch long range (1300KV)
  • 6-inch (1700KV)
  • 6S
Drawing the 3D model…

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

Tested with a 7-inch tri-blade (HQ 7.0 × 3.5) at 24 V; its test report lists a 5S 50 A ESC.

Max thrust
2,520 g
HQ 7 × 3.5 × 3 prop, 24 V
Weight
52 g
with 20 cm leads; the same for both KVs
Peak current
44.4 A
full throttle
Max power
1,057 W
full throttle

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.

01,0002,0003,00030%40%50%60%70%80%90%100%gthrottle2,520 gHQ 7 × 3.5 × 3

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

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

What to pair it with

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

ESC
BrotherHobby’s test reports list a 6S 50 A ESC for the 1700KV (49.2 A at full throttle) and a 5S 50 A ESC for the 1300KV (44.4 A). (BrotherHobby 1300KV test report, BrotherHobby 1700KV test report)
Props
7-inch for the 1300KV and 6-inch for the 1700KV in BrotherHobby’s tests: an HQ 7.0 × 3.5 tri-blade (2,520 g at full throttle) and an HQ 6 × 4 × 3 (2,440 g). (BrotherHobby 1300KV test report, BrotherHobby 1700KV test report)
Battery
6S for both KVs in BrotherHobby’s test reports; the spec list gives 4S–6S. (BrotherHobby product page, BrotherHobby 1300KV test report, BrotherHobby 1700KV test report)
Frame
Four M3 holes on a 19 × 19 mm pattern; the shaft takes an M5 prop nut. (BrotherHobby product page, BrotherHobby 1300KV test report)

Where to buy

  • BrotherHobbythe maker’s store; $29.99, with both KVs listed as out of stock
    $29.99seen Oct 19, 2026
    Visit

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

Full specs

SpecValueSource
KV1,300 rpm/V (also 1700KV)BrotherHobby product page, BrotherHobby 1300KV test report
Stator28 × 6.5 mm (2806.5); 0.2 mm Kawasaki silicon-steel laminationsBrotherHobby 1300KV test report, BrotherHobby product page
Configuration12N14P (12 stator slots, 14 magnet poles)BrotherHobby product page, BrotherHobby 1300KV test report
Battery4S–6S LiPo (BrotherHobby’s test reports give 6S for both KVs and test both at 24 V)BrotherHobby product page
Weight52 g (with 20 cm leads; the same for both KVs)BrotherHobby product page, BrotherHobby 1300KV test report, BrotherHobby 1700KV test report
Dimensionsφ33.2 × 34.7 mm (with shaft); 20.7 mm without it, with 14 mm of shaft above the bellBrotherHobby 1300KV test report, BrotherHobby 1700KV test report
ShaftHollow titanium alloy, Ø5 mm with an M5 thread, standing 14 mm above the bellBrotherHobby product page, BrotherHobby 1300KV test report
Mounting4 × M3 holes on a 19 mm circle (19 × 19 mm)BrotherHobby product page, BrotherHobby 1300KV test report
Bell7075 aluminium bell cap and base casing; the bell is closed over the topBrotherHobby product page, BrotherHobby product photo
MagnetsN52H arc magnetsBrotherHobby product page, BrotherHobby 1300KV test report
BearingsNMB (Japan), 12 × 6 × 4 mmBrotherHobby product page, BrotherHobby bearings image
Internal resistance64.06 mΩ (1700KV 44.27 mΩ)BrotherHobby 1300KV test report, BrotherHobby 1700KV test report
Idle current1.01 A (at 10 V; 1700KV 1.38 A)BrotherHobby 1300KV test report, BrotherHobby 1700KV test report
Max current44.4 A (full throttle on an HQ 7.0 × 3.5 tri-blade at 23.8 V; 1700KV 49.2 A on an HQ 6 × 4 × 3)BrotherHobby 1300KV test report, BrotherHobby 1700KV test report
Max power1,056.72 W (input power at full throttle; 1700KV 1170.96 W)BrotherHobby 1300KV test report, BrotherHobby 1700KV test report
Leads18 AWG, 20 cmBrotherHobby product page, BrotherHobby 1300KV test report

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

PropThrottleVoltage (V)Current (A)RPMThrust (g)Power (W)Efficiency (g/W)
HQ 7 × 3.5 × 3 (7-inch, three blades)motor at 102.2 °C30%242.3827031055.25.62
40%244.610517530110.44.8
50%247.212132750172.84.34
60%2412.7149221,130304.83.71
70%23.918.3167851,430437.373.27
80%23.928.8192161,940688.322.82
90%23.837.5206312,290892.52.57
100%23.844.4216912,5201056.722.38

Source: BrotherHobby 1300KV test report

1700KV on 6S, 24 V1 prop

PropThrottleVoltage (V)Current (A)RPMThrust (g)Power (W)Efficiency (g/W)
HQ 6 × 4 × 3 (6-inch, three blades)motor at 109.8 °C30%243.11101932074.44.3
40%245.713871520136.83.8
50%2410.617193840254.43.3
60%23.915.5200641,110370.453
70%23.920.8222731,330497.122.68
80%23.933.1256571,780791.092.25
90%23.842.1281012,1101001.982.11
100%23.849.2296102,4401170.962.08

Source: BrotherHobby 1700KV 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:

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.

BatteryVoltsNo-load rpm (KV × V)Electrical frequencyESC steps per second
4S nominal14.819,2402,245 Hz13,468
4S full16.821,8402,548 Hz15,288
6S nominal22.228,8603,367 Hz20,202
6S full25.232,7603,822 Hz22,932

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, 33.2 mm bell, 20.7 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.

Sources

  1. BrotherHobby: Venom 2806.5 Motor (CW) (product page on BrotherHobby’s store, with its spec list, photos and Test Data tab). Retrieved Oct 19, 2026.
  2. BrotherHobby: Venom 2806.5 1300KV test report (drawing, spec table and load test on an HQ 7.0 × 3.5 tri-blade at 24 V, from BrotherHobby’s 2017 bench; image on the Test Data tab). The copper temperature is after two minutes at full throttle.. Retrieved Oct 19, 2026.
  3. BrotherHobby: Venom 2806.5 1700KV test report (drawing, spec table and load test on an HQ 6 × 4 × 3 at 24 V, from BrotherHobby’s 2017 bench; image on the Test Data tab). The copper temperature is after two minutes at full throttle.. Retrieved Oct 19, 2026.
  4. BrotherHobby: Venom 2806.5 “Strong thrust” image, giving up to 2.5 kg from one motor (image on the Description tab). Retrieved Oct 19, 2026.
  5. BrotherHobby: Venom 2806.5 “Strictly control materials” image, on its NMB bearings (image on the Description tab). Retrieved Oct 19, 2026.
  6. BrotherHobby: Venom 2806.5 title image, on its air gap and torque (image on the Description tab). Retrieved Oct 19, 2026.
  7. BrotherHobby: Venom 2806.5 1300KV product photo (first gallery image on the product page). Retrieved Oct 19, 2026.