BrotherHobby Avenger 2812 V5

What it pulls

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

What you get for $33.99

• 3.8 kg on a folding 9-inch

  On BrotherHobby’s 25.2 V bench it pulled 3,788 g at full throttle on a folding 9453F tri-blade, drawing 50.78 A; at 30% throttle it gave 770 g at 6.5 g/W.

  Source: BrotherHobby test report, BrotherHobby weight and thrust, BrotherHobby summary

• Props in the box

  It is sold with a set of BrotherHobby folding props, three-blade or two-blade, that bolt to holes on a 23 mm circle in the bell’s top.

  Source: BrotherHobby product page, BrotherHobby folding props, BrotherHobby packing lists

• Hard-anodised 7075, steel shaft

  Hard-anodised 7075 aluminium caps with cut-outs that BrotherHobby says save weight and shed heat, on a heat-treated SUS420 steel shaft.

  Source: BrotherHobby exploded view

What to pair it with

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

ESC

BrotherHobby lists a 6S 60 A ESC; the motor drew 50.78 A at full throttle on its 9-inch folding test prop. (BrotherHobby test report, BrotherHobby summary)

Props

Tested with BrotherHobby’s folding 9453F tri-blade (3,788 g at full throttle), which sweeps about 245 mm and fits the 23 mm hole pattern in the bell’s top. (BrotherHobby test report, BrotherHobby folding props)

Battery

6S, in the spec list and the test report. (BrotherHobby product page, BrotherHobby test report)

Frame

Four M3 holes on a 19 mm circle (19 × 19 mm). (BrotherHobby product page, BrotherHobby drawing)

Where to buy

• BrotherHobbythe maker’s store; $33.99, down from $36.99, with three-blade or two-blade folding props (only the three-blade set was in stock)
  $33.99seen Oct 19, 2026
  Visit

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

Full specs

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.

Inside the motor

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

• Bell. Hard-anodised 7075 aluminium, φ33.9 mm. The flat top has six windows round the rim, three curved slots round the shaft and M3 holes on a 23 mm circle for the prop adapter. (BrotherHobby exploded view, BrotherHobby drawing)
• Shaft. Heat-treated SUS420 steel with an M5 thread, standing 17 mm above the bell. (BrotherHobby product page, BrotherHobby exploded view, BrotherHobby drawing)
• Magnets. N52H arc magnets, 14 poles, set at an even air gap. (BrotherHobby product page, BrotherHobby exploded view)
• Stator. 28 × 12 mm with 12 slots, in thin non-oriented silicon steel, wound with TU1-grade enamelled wire. (BrotherHobby exploded view, BrotherHobby test report)
• Bearings. 12 × 6 × 4 mm. (BrotherHobby product page)
• Base. 7075 aluminium, with four M3 holes on a 19 mm circle and 18 AWG leads 250 mm long. (BrotherHobby product page, BrotherHobby drawing)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 910KV 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.

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 × 12 mm stator, 33.9 mm bell, 27.05 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: Avenger 2812 V5 910KV Motor(CW) (product page on BrotherHobby’s store, with its spec list, photos and Test Data tab). Retrieved Oct 19, 2026.
2. BrotherHobby: Avenger 2812 V5 weight and maximum thrust (image on the product page). Retrieved Oct 19, 2026.
3. BrotherHobby: Avenger 2812 V5 full-throttle summary with the ESC (image on the product page). Retrieved Oct 19, 2026.
4. BrotherHobby: Avenger 2812 V5 exploded view, shaft, caps, magnets, wire, stator steel and bearings (image on the product page). Retrieved Oct 19, 2026.
5. BrotherHobby: Avenger 2812 V5 dimension drawing (image on the product page). Retrieved Oct 19, 2026.
6. BrotherHobby: folding tri-blade props with a 23 mm hole pitch and their swept diameters (image on the product page). Retrieved Oct 19, 2026.
7. BrotherHobby: Avenger 2812 V5 packing lists for the three-blade and two-blade folding-prop sets (image on the product page). Retrieved Oct 19, 2026.
8. BrotherHobby: Avenger 2812 V5-910KV test report, 2022 bench, folding 9453F tri-blade at 25.2 V, with drawing and spec table (image on the Test Data tab). The copper temperature is after two minutes at full throttle.. Retrieved Oct 19, 2026.