T-Motor F2203.5

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

• For 3-inch whoops

  T-Motor pitches the 2850KV for 3-inch cinewhoops and racewhoops, with more thrust and better cooling.

  Source: T-Motor product page

• 5-inch long range

  T-Motor says the 1500KV can fly a 5-inch long-range build for 35+ minutes on 4S.

  Source: T-Motor product page

• 12 × 12 mount

  Four M2 holes on a 12 mm circle, which T-Motor says fits a variety of frames.

  Source: T-Motor drawing

• Bench data for every KV

  Thrust, current, RPM, power and motor temperature in 5% steps from 50% throttle, on 3-inch ducted and 4–5-inch open props.

  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 31.4 A for the 2850KV, 19.5 A for the 1500KV and 26.8 A for the 3550KV. T-Hobby suggests a 3–6S ESC. (T-Motor spec tables, T-Hobby product page)

Props

T-Motor benched it on 3-inch ducted props (Gemfan D76, D90, HQ 75 mm duct) and on Gemfan 4023 and 5125 props. On 6S the 2850KV pulls 1069 g on the 4023 and 933 g on the D76. T-Hobby lists 2–5-inch props. (T-Motor test report, T-Hobby product page)

Battery

4S–6S for the 2850KV, 6S for the 1500KV, 3S–4S for the 3550KV. T-Hobby suggests a 4S 1500 mAh or 6S 1100 mAh 120C pack. (T-Motor spec tables, T-Hobby product page)

Frame

3–3.5-inch whoops and 4–5-inch toothpicks, about 520–530 g at take-off per T-Hobby. Four M2 screws on a 12 mm circle. (T-Hobby product page, 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 1500KV
  $19.90seen Oct 19, 2026
  Visit
• Pyrodrone2850KV
  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. 22 mm across and 3.5 mm tall, 12 slots under 14 magnet poles (12N14P). (T-Motor spec tables)
• Bell. 26.8 mm across, with three spokes in the top. (T-Motor drawing)
• Shaft. 3 mm by T-Motor's table, with an M5 thread, standing 11.8 mm above the bell; the motor is 26.45 mm long overall. (T-Motor drawing)
• Base. Four M2 holes on a 12 mm circle; three 24 AWG leads, 130 mm long. (T-Motor spec tables)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 2850KV 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 22 × 3.5 mm stator, 26.8 mm bell, 14.65 mm height, 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: F2203.5 product page on its Tmotorhobby store (description, price; feature notes, drawing, spec tables, test report and contents are images on the page). Retrieved Oct 19, 2026.
2. T-Motor: F2203.5 spec tables for 1500KV, 2850KV and 3550KV (image on the product page, S1). Retrieved Oct 19, 2026.
3. T-Motor: F2203.5 test report, seven 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 for the 1500KV and 2850KV, 15 °C for the 3550KV. Retrieved Oct 19, 2026.
4. T-Motor: F2203.5 product drawing (image on the product page, S1). Retrieved Oct 19, 2026.
5. T-Hobby (T-Motor's hobby brand): F2203.5 product page (description, recommended setup, price). Retrieved Oct 19, 2026.