BrotherHobby Avenger 2808

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

• 2.7 kg on an 8-inch prop

  On BrotherHobby’s 25.2 V bench the 1350KV pulled 2,738 g at full throttle on an HQ 8 × 4.5 × 3, drawing 68.48 A.

  Source: BrotherHobby 1350KV test report

• About 2.5 kg on a 7-inch prop

  The 1500KV pulled 2,469 g at full throttle on an HQ 7 × 3.5 × 3 at 25.2 V, drawing 63.3 A.

  Source: BrotherHobby 1500KV test report

• Hard-anodised 7075

  Bell cap and base in 7075 aluminium with a hard-anodised finish, which BrotherHobby says takes light scrapes without marking.

  Source: BrotherHobby product page, BrotherHobby infographic

• NMB bearings

  Japanese NMB 12 × 6 × 4 mm bearings, which BrotherHobby says run smooth and quiet.

  Source: BrotherHobby product page, BrotherHobby infographic

• Balanced to 3 mg

  The 2022 test reports give a dynamic-balance standard of 3 mg or less, insulation resistance of at least 0.5 MΩ and a passed coil test.

  Source: BrotherHobby 1350KV test report, BrotherHobby 1500KV test report, BrotherHobby 1900KV test report

What to pair it with

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

ESC

BrotherHobby’s 2022 reports list a 6S 80 A ESC for all three KVs; full-throttle peaks were 68.48 A (1350KV, 8-inch), 63.3 A (1500KV, 7-inch) and 63.5 A (1900KV, 6-inch). Its 2020 tests used a 6S 45 A for the 1500KV (43.5 A peak) and a 5S 55 A for the 1900KV (53.4 A peak). (BrotherHobby 1350KV test report, BrotherHobby 1500KV test report, BrotherHobby 1900KV test report, BrotherHobby 2020 load tests, BrotherHobby infographic)

Props

An 8-inch tri-blade for the 1350KV (2,738 g), a 7-inch for the 1500KV (2,469 g) and a 6-inch for the 1900KV (2,608 g), all at 25.2 V. On the HQ 6 × 3.5 × 3 the 2020 tests gave 2,063 g (1500KV, 24 V) and 2,021 g (1900KV, 20 V). (BrotherHobby 2020 load tests, BrotherHobby 1350KV test report, BrotherHobby 1500KV test report, BrotherHobby 1900KV test report)

Battery

6S for all three KVs in BrotherHobby’s 2022 tests; the 1900KV was also tested on 5S. The spec list gives 4S–6S. (BrotherHobby product page, BrotherHobby 2020 load tests, BrotherHobby 1350KV test report, BrotherHobby 1500KV test report, BrotherHobby 1900KV test report)

Frame

Four M3 holes on a 19 mm circle (19 × 19 mm); four M3 screws and an M5 nut come in the box. (BrotherHobby product page, BrotherHobby spec and drawing, BrotherHobby 2020 load tests)

Where to buy

• BrotherHobbythe maker’s store; same price for every KV, listed as out of stock
  $27.99seen Oct 19, 2026
  Visit
• Pyrodrone1500KV
  price on the store’s page
  Visit
• GetFPVchoose the KV
  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, φ33 mm, hard anodised. (BrotherHobby product page, BrotherHobby spec and drawing, BrotherHobby infographic)
• Shaft. 5 mm with an M5 thread, standing 15 mm above the bell. The spec list calls it a hollow titanium-alloy shaft; an infographic on the same page calls it heat-treated alloy steel. (BrotherHobby product page, BrotherHobby spec and drawing, BrotherHobby infographic)
• Magnets. N52H arc magnets, 14 poles. (BrotherHobby product page)
• Stator. 28 × 8 mm with 12 slots, in 0.2 mm Kawasaki silicon steel. (BrotherHobby product page, BrotherHobby 1500KV 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 spec and drawing)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 1500KV 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 × 8 mm stator, 33 mm bell, 21.2 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 2808 Motor (CW) (product page on BrotherHobby’s store, with its spec list and photos). Retrieved Oct 19, 2026.
2. BrotherHobby: Avenger 2808 spec list and dimension drawing (image on the product page). Retrieved Oct 19, 2026.
3. BrotherHobby: Avenger 2808 load test data, 2020 bench (1500KV at 24 V and 1900KV at 20 V, both on an HQ 6 × 3.5 × 3), with the packing list (image on the product page). Retrieved Oct 19, 2026.
4. BrotherHobby: Avenger 2808 1350KV test report, 2022 (drawing, spec table and load test on an HQ 8 × 4.5 × 3 at 25.2 V; image on the product page). Its rpm column is left out because the 30% row reads 900 rpm, an evident misprint.. Retrieved Oct 19, 2026.
5. BrotherHobby: Avenger 2808 1500KV test report, 2022 (drawing, spec table and load test on an HQ 7 × 3.5 × 3 at 25.2 V; image on the product page). Retrieved Oct 19, 2026.
6. BrotherHobby: Avenger 2808 1900KV test report, 2022 (drawing, spec table and load test on an HQ 6 × 3.5 × 3 at 25.2 V; image on the product page). Retrieved Oct 19, 2026.
7. BrotherHobby: Avenger 2808 thrust summary and features (image on the product page). Retrieved Oct 19, 2026.