BrotherHobby Avenger 2816

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 $39.99

• 3.9 kg on a 10-inch prop

  On BrotherHobby’s 8S bench the 620KV pulled 3,896 g at full throttle on an HQ 10 × 5 × 3, drawing 47.5 A; on 6S the 810KV pulled 3,523 g on the same prop at 55.0 A.

  Source: BrotherHobby 620KV test report, BrotherHobby 810KV test report, BrotherHobby load-test cards

• Hollow titanium shaft

  A hollow titanium-alloy shaft with an M5 thread, turning in Japanese NMB 12 × 6 × 4 mm bearings.

  Source: BrotherHobby product page, BrotherHobby infographic

• N52H magnets, T1 copper

  N52H arc magnets and grade T1 oxygen-free copper enamelled wire, which BrotherHobby says give a steady power output.

  Source: BrotherHobby infographic, BrotherHobby infographic

What to pair it with

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

ESC

BrotherHobby lists an 8S 50 A ESC for the 620KV and 8S 45 A for the 750KV, 6S 55 A for the 810KV and 1050KV, and 6S 50 A for the 720KV; their full-throttle peaks were 47.5 A, 43.8 A, 55.0 A, 54.6 A and 28.2 A. (BrotherHobby 1050KV test report, BrotherHobby 810KV test report, BrotherHobby 720KV test report, BrotherHobby 750KV test report, BrotherHobby 620KV test report)

Props

On an HQ 10 × 5 × 3 the 620KV pulled 3,896 g (8S) and the 810KV 3,523 g (6S) at full throttle; on an HQ 8 × 4.5 × 3 the 750KV pulled 3,072 g (8S), the 1050KV 2,921 g and the 720KV 2,231 g (6S). (BrotherHobby 1050KV test report, BrotherHobby 810KV test report, BrotherHobby 720KV test report, BrotherHobby 750KV test report, BrotherHobby 620KV test report)

Battery

8S for the 620KV and 750KV and 6S for the 720KV, 810KV and 1050KV in BrotherHobby’s tests; its spec list gives 4S–6S. (BrotherHobby product page, BrotherHobby 1050KV test report, BrotherHobby 810KV test report, BrotherHobby 720KV test report, BrotherHobby 750KV test report, BrotherHobby 620KV test report)

Frame

Four M3 holes on a 19 mm circle (19 × 19 mm). (BrotherHobby product page, BrotherHobby 810KV test report)

Where to buy

• BrotherHobbythe maker’s store; $39.99, down from $45.99, for any KV
  $39.99seen Oct 19, 2026
  Visit
• GetFPV620KV, 750KV, 810KV or 1050KV
  price on the store’s page
  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. 7075 aluminium bell cap, φ34 mm, with five spokes round a textured hub and a machined rim. (BrotherHobby product page, BrotherHobby 810KV test report)
• Shaft. Hollow titanium alloy, 5 mm with an M5 thread, standing 16 mm above the bell. (BrotherHobby product page, BrotherHobby infographic, BrotherHobby 810KV test report)
• Magnets. N52H arc magnets, 14 poles. (BrotherHobby product page, BrotherHobby infographic)
• Stator. 28 × 16 mm with 12 slots, in 0.2 mm Kawasaki silicon steel, wound with grade T1 oxygen-free copper wire. (BrotherHobby product page, BrotherHobby infographic, BrotherHobby 810KV test report)
• Bearings. NMB, 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 810KV test report)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 810KV 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 × 16 mm stator, 34 mm bell, 30.2 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 2816 Motor (product page on BrotherHobby’s store, with its spec list, photos and Tech Specs tab). Retrieved Oct 19, 2026.
2. BrotherHobby: Avenger 2816 load-test banner (“Optional KV: 620KV / 690KV / 750KV / 810KV / 900KV / 1000KV”) and the 620KV full-throttle card (image on the product page). Retrieved Oct 19, 2026.
3. BrotherHobby: Avenger 2816 full-throttle cards for a 690KV and the 750KV (image on the product page). Retrieved Oct 19, 2026.
4. BrotherHobby: Avenger 2816 features, N52H magnets, hollow titanium shaft and NMB bearings (image on the product page). Retrieved Oct 19, 2026.
5. BrotherHobby: Avenger 2816 N52H magnets and grade T1 oxygen-free copper enamelled wire (image on the product page). Retrieved Oct 19, 2026.
6. BrotherHobby: Avenger 2816-1050KV test report, 2018 bench, HQ 8 × 4.5 × 3 at 24 V, with drawing and spec table (image on the Tech Specs tab). Copper temperatures in all the reports are after two minutes at full throttle.. Retrieved Oct 19, 2026.
7. BrotherHobby: Avenger 2816-810KV test report, 2018 bench, HQ 10 × 5 × 3 at 24 V, with drawing and spec table (image on the Tech Specs tab). Retrieved Oct 19, 2026.
8. BrotherHobby: Avenger 2816-720KV test report, 2025 bench, HQ 8 × 4.5 × 3 at 25.2 V, with drawing and spec table (image on the Tech Specs tab). Retrieved Oct 19, 2026.
9. BrotherHobby: Avenger 2816-750KV test report, 2018 bench, HQ 8 × 4.5 × 3 at 32 V, with drawing and spec table (image on the Tech Specs tab). Retrieved Oct 19, 2026.
10. BrotherHobby: Avenger 2816-620KV test report, 2018 bench, HQ 10 × 5 × 3 at 32 V, with drawing and spec table (image on the Tech Specs tab). Retrieved Oct 19, 2026.