iFlight XING2 1404

What it pulls

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

What you get

• 9.1 g with wires

  iFlight designed it for ultralight toothpick builds, 3-inch quads on an AIO board.

  Source: iFlight product page

• One-piece bell

  iFlight's Unibell; its XING2 description says the bells are 7075 aluminium.

  Source: iFlight product page

• Curved N52H magnets

  Centre-slotted arc magnets set close to the stator. iFlight says they shorten the motor's response time.

  Source: iFlight product page

• NSK bearings with an O-ring

  iFlight puts an O-ring between bell and stator above the bearing, which it says absorbs crash impacts and keeps the bearing gap tight.

  Source: iFlight product page

• Single-strand windings

  One strand per tooth, 220 mΩ between phases on the 3800KV.

  Source: iFlight product page

What to pair it with

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

ESC

Rated for at least the motor's peak current: 14 A for the 3000KV, 16 A for the 3800KV and 18 A for the 4600KV, on a 4030 prop at 16 V. A 20 A AIO or 4-in-1 covers all three. (iFlight 3800KV test report, iFlight 3000KV test report, iFlight 4600KV test report)

Props

iFlight tested every KV with a 4030 (4 × 3) prop at 16 V: 489 g, 512 g and 574 g at full throttle for the 3000KV, 3800KV and 4600KV. (iFlight 3800KV test report, iFlight 3000KV test report, iFlight 4600KV test report)

Battery

3S or 4S for all three KVs; iFlight's bench runs are on 16 V (4S). (iFlight product page, iFlight 3800KV test report)

Frame

Four M2 holes on a 9 mm circle (sold as "9 × 9"). M2×5 and M2×7 screws come in the box. (iFlight product page, iFlight 3800KV test report)

Where to buy

• iFlightthe maker's store; $15.99 for each KV (3800KV out of stock when checked)
  $15.99seen Oct 19, 2026
  Visit
• RaceDayQuads4600KV
  price on the store’s page
  Visit
• Pyrodrone4600KV
  price on the store’s page
  Visit
• Pyrodrone3800KV
  price on the store’s page
  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 iFlight’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. One piece (iFlight's "Unibell"), φ19.9 mm; the XING2 description gives the material as 7075 aluminium. (iFlight product page)
• Shaft. 1.5 mm, protruding 4 mm above the bell. (iFlight 3800KV test report)
• Magnets. Curved, centre-slotted N52H arc magnets, 12 poles. (iFlight product page)
• Stator. 14 × 4 mm with 9 teeth, wound with single-strand copper; 26 AWG leads, 120 mm long. (iFlight product page)
• Bearings. NSK, 5 × 2 × 2 mm. (iFlight 3800KV test report)
• Base. 2 mm thick, with four M2 holes on a 9 mm circle. (iFlight 3800KV test report)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 3800KV 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 12-pole rotor has 6 pole pairs, so every turn of the shaft is 6 electrical cycles, and a six-step ESC switches the phases 36 times per turn.

About the 3D model

A generic outrunner drawn from iFlight’s published sizes: the 14 × 4 mm stator, 19.9 mm bell, 13.5 mm height, 1.5 mm shaft, 9 mm mounting circle and 9 teeth and 12 magnets. Anything iFlight 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. iFlight: XING2 1404 Toothpick Ultralight Build (Unibell) (product page, with its photo gallery). Retrieved Oct 19, 2026.
2. iFlight: XING2 1404 3800KV test report (spec table, dimension drawing, thrust data). Retrieved Oct 19, 2026.
3. iFlight: XING2 1404 3000KV test report. Retrieved Oct 19, 2026.
4. iFlight: XING2 1404 4600KV test report. Retrieved Oct 19, 2026.