Axisflying BlackBird V4 2307

What it pulls

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

What you get for $27.90

• Bigger stator

  Axisflying grew the stator from 2207.3 to 2307.3 for this version, for more stability and power.

  Source: Axisflying feature image

• Shielded bearings

  Axisflying's Bearing Shield Technology seats the bearings behind an IP53 dust and water seal, which it says keeps them smooth for longer.

  Source: Axisflying product page

• Two editions

  Mind Reader (1960KV) for smooth, precise flying; Menace (2060KV), which Axisflying says keeps the top-end power of a 2125KV with better reliability.

  Source: Axisflying editions image

• Bench numbers

  1856 g at 42.08 A on a Gemfan 51466 V2 at about 24 V for the 1960KV; 1882.6 g at 44.48 A for the 2060KV.

  Source: Axisflying drawing and specs

What to pair it with

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

ESC

On Axisflying's bench the 1960KV peaks at 42.08 A and the 2060KV at 44.48 A; Axisflying puts the most current at about 50 A. (Axisflying product page, Axisflying drawing and specs)

Props

Axisflying tested the AF BB39 PC, Gemfan 51466 V2 and HQ MCK. On the 1960KV the 51466 V2 pulls 1856 g against 1583.8 g on the BB39, and runs warmer inside: 65.1 °C against 48.45 °C. (Axisflying 1960KV test data)

Battery

6S for both KVs. (Axisflying product page)

Frame

Four M3 screws on a 16 mm circle; four M3×8 screws and an M5 lock nut come in the box. (Axisflying product page, Axisflying drawing and specs)

Where to buy

• Axisflyingthe maker's store; 1 motor, either KV ($105.90 for 4)
  $27.90seen Oct 19, 2026
  Visit
• GetFPV
  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 Axisflying’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. Black, with gold-anodised cuts in the top and a gold rim. (Axisflying product photo)
• Magnets. N52H arc magnets, 14 poles. (Axisflying product page)
• Stator. 23 mm across and 7.3 mm tall, 12 slots. (Axisflying product page)
• Bearings. Behind Axisflying's Bearing Shield Technology seal, rated IP53. (Axisflying product page)
• Shaft. 5 mm with an M5 thread, standing 13.5 mm above the bell; an M3×4 screw locks it. (Axisflying drawing and specs)
• Leads. 20 AWG, 150 mm. (Axisflying product page)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 1960KV 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 Axisflying’s published sizes: the 23 × 7.3 mm stator, 27.8 mm bell, 19.4 mm height, 5 mm shaft, 16 mm mounting circle and 12 teeth and 14 magnets. Anything Axisflying 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. Axisflying: Motor BlackBird V4 2307 6s (product page). Retrieved Oct 19, 2026.
2. Axisflying: BlackBird V4 outline drawing and spec tables for 1960KV and 2060KV (image on the product page). Retrieved Oct 19, 2026.
3. Axisflying: BlackBird V4 1960KV testing data (image on the product page). Each row's voltage is as measured; the table's voltage is its 30% row. Temperatures are inside the motor at full load, 29 °C ambient.. Retrieved Oct 19, 2026.
4. Axisflying: BlackBird V4 2060KV testing data (image on the product page). Each row's voltage is as measured; the table's voltage is its 30% row. Temperatures are inside the motor at full load, 29 °C ambient.. Retrieved Oct 19, 2026.
5. Axisflying: BlackBird V4 feature image (stator upgraded from 2207.3 to 2307.3). Retrieved Oct 19, 2026.
6. Axisflying: BlackBird V4 editions image (Menace Edition 2060KV, Mind Reader 1960KV). Retrieved Oct 19, 2026.
7. Axisflying: BlackBird V4 main product photo (2060KV Menace Edition; the 1960KV has the same finish), used for finish. Retrieved Oct 19, 2026.