Happymodel RS 0802
| Stator | 0802 |
|---|---|
| KV options | 20000 |
| Weight | 2.0 g |
| Shaft | 1.5mm |
| Max cells | 1S |
| Configuration | 9N12P |
| Dimensions | Ø10.5x13.5 mm |
| Max thrust | 34.8 g |
| Price (approx.) | 11.99 USD |
At 2 g it is 0.10 g heavier than average across the 8 0802-class motors in our database (avg 1.90 g).
Thrust data (Happymodel bench test)
| KV | Prop | Battery | Throttle | Current | RPM | Thrust | Efficiency |
|---|---|---|---|---|---|---|---|
| 20000 | Gemfan 1610 2-blade propeller | 1S | — | 0.5 A | — | 6.1 g | 3.297 g/W |
| 20000 | Gemfan 1610 2-blade propeller | 1S | — | 1 A | — | 11.3 g | 3.054 g/W |
| 20000 | Gemfan 1610 2-blade propeller | 1S | — | 1.5 A | — | 15.9 g | 2.865 g/W |
| 20000 | Gemfan 1610 2-blade propeller | 1S | — | 2 A | — | 20.8 g | 2.811 g/W |
| 20000 | Gemfan 1610 2-blade propeller | 1S | — | 2.5 A | — | 24.7 g | 2.67 g/W |
| 20000 | Gemfan 1610 2-blade propeller | 1S | — | 3 A | — | 29.4 g | 2.649 g/W |
| 20000 | Gemfan 1610 2-blade propeller | 1S | — | 3.5 A | — | 32.5 g | 2.51 g/W |
| 20000 | Gemfan 1610 2-blade propeller | 1S | — | 3.74 A | — | 34.8 g | 2.515 g/W |
Manufacturer bench figures (Happymodel bench, 20000 KV on a Gemfan 1610 2-blade at 1S (3.7 V); 8 current steps 0.5-3.74 A, throttle not published); real-world thrust varies with ESC, battery sag and prop condition.
Thrust-to-weight with this motor
RPM & prop speed on this motor
Props in this motor's class
| Prop | Size | Blades | Weight |
|---|---|---|---|
| weBLEEDfpv HQ Ultralight Whoop 31MM | 1.22x1.0 | 3 | 0.16 g |
| HQProp 40MMX2 Ultralight 40mm Micro/Whoop | 1.6x1.2 | 2 | 0.2 g |
| Gemfan 35MMS 3-Blade | 1.4x0.96 | 3 | 0.24 g |
| HQProp 40mm Ultralight 3-Blade | 1.6x1.0 | 3 | 0.25 g |
| HQProp Ultralight 31MMX3 31mm Micro/Whoop | 1.22x1.0 | 3 | 0.27 g |
Where this data comes from
The rows are Happymodel's own bench table, published as an HTML table in the body of its product post on happymodel.cn - the first brand in this dataset whose bench data is markup rather than a photographed sheet, so every figure here is the source's own text. The template is a no-load block (2 V, its current, its speed and the KV that measurement implies) repeated beside a run of Voltage / Current / Thrust / Efficiency / Power rows and the propeller. It steps CURRENT, not throttle, and publishes no per-row RPM, so both those columns are empty here. No spec-block cross-check is possible on this brand: Happymodel's Specifications blocks state no maximum power and no maximum current. Every row reproduces its own printed power as Voltage x Current to within 0.01 W, and its printed efficiency as Thrust / Power. Its no-load block is 0.46 A and 40790 RPM at 2 V, i.e. a measured 20395 KV against a 20000 KV nameplate. Identity with Happymodel's own Specifications block is six figures to the digit: the 8 mm x 2 mm stator, 20000 KV, a 1.5 mm shaft, 9N12P, Ø10.5x13.5 mm and 2 g, all of which our RaceDayQuads listing reprints. The RS0802 is also sold as a 25000 KV winding; Happymodel's table covers only the 20000 KV one, so this page's rows are the whole of what the brand publishes for it.