HappyModel SE0702

What you get

• 1.5 g

  HappyModel lists 1.5 g per motor (1.46 g in its text).

  Source: HappyModel product page

• Three KVs, all 1S

  23000KV, 26000KV and 28000KV, each rated for 1S LiPo only.

  Source: HappyModel product page

• Bench data for each KV

  HappyModel publishes 3.7 V tables with 31 mm and 40 mm props, from about 5 g up to 31.4 g of thrust.

  Source: HappyModel product page

• New look from 2023

  HappyModel changed the motor's appearance and began shipping the new version from May 2023.

  Source: HappyModel product page

What to pair it with

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

ESC

HappyModel's bench tops out at 4.38 A (26000KV, 40 mm prop) and 4.74 A (28000KV, 31 mm three-blade) per motor. A 1S whoop board rated 5 A per motor or more covers them. (HappyModel product page)

Props

HappyModel tested 31 mm props on all three KVs (a Gemfan 1219 three-blade on the 28000KV) and 40 mm two-blade props on the 23000KV and 26000KV. (HappyModel product page)

Battery

1S LiPo only, for every KV. (HappyModel product page)

Frame

Three M1.4 screws on a 6.6 mm circle. (HappyModel drawing)

Where to buy

• RaceDayQuads26000KV
  price on the store’s page
  Visit
• RaceDayQuads28000KV, choose rotation
  price on the store’s page
  Visit
• GetFPV26000KV, CW
  price on the store’s page
  Visit
• WREKDchoose KV and rotation
  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 HappyModel’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:

• Shaft. 1 mm, protrudes 5.4 mm above the bell. (HappyModel drawing)
• Stator. The coils are wound on a stack of thin steel laminations: 7 × 2 mm (0702). (HappyModel product page)
• Base. 3 × M1.4 holes on a 6.6 mm circle. (HappyModel drawing)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 26000KV 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 HappyModel’s published sizes: the 7 × 2 mm stator, 9.6 mm bell, 7.1 mm height, 1 mm shaft, 6.6 mm mounting circle and 9 teeth and 12 magnets. Anything HappyModel 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. HappyModel: SE0702 KV23000 KV26000 KV28000 brushless motors for 1S FPV brushless whoop (product page, spec list and bench data). Retrieved Oct 19, 2026.
2. HappyModel: SE0702 dimension drawing (image on the product page). Retrieved Oct 19, 2026.
3. HappyModel: SE0702 main product photo (new appearance, 2023), used for finish and the top's shape. Retrieved Oct 19, 2026.