T-Motor F2004

What it pulls

T-Motor’s own bench test, one line per prop. Drag across the chart to move the throttle; the model above follows.

What you get for $19.90

• T-mount, 1.5 mm shaft

  Four M2 holes in the top of the bell take the prop, around a 1.5 mm shaft.

  Source: T-Motor drawing

• 16.4 g

  16.4 g with its 130 mm leads.

  Source: T-Motor spec tables

• Long-range build

  T-Motor's 5-inch long-range build pairs the 1700KV with T4944 props and a 4S 21700 Li-ion pack; at 450 g take-off weight T-Motor says it flew 45–48 minutes.

  Source: T-Motor long-range build

• Bench data for both KVs

  Thrust, current, RPM, power and motor temperature in 5% steps from 50% throttle: three props for the 1700KV at 24 V, five for the 3000KV at 16 V.

  Source: T-Motor test report

What to pair it with

Our reading of T-Motor’s numbers, so your build matches what the motor was tested with.

ESC

Peak current over 60 s is 21.2 A for the 1700KV and 30.1 A for the 3000KV. T-Hobby and T-Motor's long-range build both use T-Motor's Mini F45A 4-in-1. (T-Motor drawing, T-Motor spec tables, T-Motor long-range build, T-Hobby product page)

Props

T-Hobby recommends T-Motor's T4944. T-Motor benched the 1700KV on GF4023, GT5125 and T4944 props at 24 V (945 g at full throttle on the T4944), and the 3000KV on GF D76, GF4023, GF5125, T76 and T4944 props at 16 V (951 g on the GF5125). (T-Hobby product page, T-Motor test report)

Battery

6S for the 1700KV, 4S–5S for the 3000KV. T-Hobby suggests a 4S 1500 mAh or 6S 1100 mAh 120C pack; T-Motor's long-range build uses a 4S 21700 Li-ion pack with the 1700KV. (T-Motor drawing, T-Motor spec tables, T-Hobby product page, T-Motor long-range build)

Frame

5-inch toothpick frames or 3.5-inch whoops, per T-Hobby. T-Motor's long-range build aims for 400–500 g take-off weight on a 120–180 g frame. The base takes four M2 screws on a 12 mm circle. (T-Hobby product page, T-Motor long-range build, T-Motor drawing)

Where to buy

• T-Motorthe maker's store (Tmotorhobby)
  $19.90seen Oct 19, 2026
  Visit
• T-HobbyT-Motor's hobby-brand store; price shown for 1700KV
  $20.90seen Oct 19, 2026
  Visit
• Pyrodrone3000KV
  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 T-Motor’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:

• Stator. 20 mm across and 4 mm tall, 12 slots under 14 magnet poles (12N14P). (T-Motor spec tables)
• Bell. 24.3 mm across, with six spokes in the top and four M2 holes round the shaft for T-mount props. (T-Motor drawing)
• Shaft. 1.5 mm, standing 3.5 mm above the bell; the motor is 17.25 mm long overall. (T-Motor drawing)
• Base. Four M2 holes on a 12 mm circle; three 24 AWG leads, 130 mm long. (T-Motor drawing)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 3000KV 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 T-Motor’s published sizes: the 20 × 4 mm stator, 24.3 mm bell, 13.75 mm height, 1.5 mm shaft, 12 mm mounting circle and 12 teeth and 14 magnets. Anything T-Motor 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. T-Motor: F2004 product page on its Tmotorhobby store (description, price; drawing, spec tables, test report and contents are images on the page). Retrieved Oct 19, 2026.
2. T-Motor: F2004 product drawing and the start of the 1700KV spec table (image on the product page, S1). Retrieved Oct 19, 2026.
3. T-Motor: F2004 spec tables, rest of the 1700KV and the 3000KV (image on the product page, S1). Retrieved Oct 19, 2026.
4. T-Motor: F2004 test report, images on the product page (S1) starting with this one. Thrust in g, voltage measured per row, motor surface temperature after 1 min at 100% throttle, ambient 8 °C. Retrieved Oct 19, 2026.
5. T-Motor: F2004 1700KV 5-inch long-range build recommendation (image on the product page, S1). Retrieved Oct 19, 2026.
6. T-Hobby (T-Motor's hobby brand): F2004 product page (description, recommended setup, price). Retrieved Oct 19, 2026.