Happymodel SE 0702

Happymodel SE 0702
Image: racedayquads.com
Stator0702
KV options23000, 26000, 28000
Weight1.46 g
Shaft1mm
Max cells1S
Configuration9N12P
DimensionsØ9.5x14 mm
Max thrust31.4 g
Price (approx.)11.99 USD

At 1.46 g it is right at the class average across the 11 0702-class motors in our database (avg 1.49 g).

Thrust data (Happymodel bench test)

KVPropBatteryThrottleCurrentRPMThrustEfficiency
23000 Gemfan 31mm Bi-blade propeller 1S — 0.52 A — 5.1 g 2.651 g/W
23000 Gemfan 31mm Bi-blade propeller 1S — 1 A — 8.9 g 2.405 g/W
23000 Gemfan 31mm Bi-blade propeller 1S — 1.53 A — 13.1 g 2.314 g/W
23000 Gemfan 31mm Bi-blade propeller 1S — 1.99 A — 16.3 g 2.214 g/W
23000 Gemfan 31mm Bi-blade propeller 1S — 2.5 A — 19.3 g 2.086 g/W
23000 Gemfan 31mm Bi-blade propeller 1S — 2.86 A — 21.7 g 2.051 g/W
23000 Gemfan 40mm Bi-blade propeller 1S — 1 A — 8.1 g 2.189 g/W
23000 Gemfan 40mm Bi-blade propeller 1S — 1.5 A — 11.8 g 2.126 g/W
23000 Gemfan 40mm Bi-blade propeller 1S — 2 A — 15.6 g 2.108 g/W
23000 Gemfan 40mm Bi-blade propeller 1S — 2.5 A — 19.6 g 2.119 g/W
23000 Gemfan 40mm Bi-blade propeller 1S — 3 A — 22.4 g 2.018 g/W
23000 Gemfan 40mm Bi-blade propeller 1S — 3.5 A — 25.6 g 1.977 g/W
23000 Gemfan 40mm Bi-blade propeller 1S — 4 A — 27.1 g 1.831 g/W
26000 HQPROP 31MM Bi-blade propeller 1S — 0.98 A — 8 g 2.206 g/W
26000 HQPROP 31MM Bi-blade propeller 1S — 1.49 A — 11.9 g 2.159 g/W
26000 HQPROP 31MM Bi-blade propeller 1S — 1.99 A — 15.6 g 2.119 g/W
26000 HQPROP 31MM Bi-blade propeller 1S — 2.5 A — 19.6 g 2.119 g/W
26000 HQPROP 31MM Bi-blade propeller 1S — 2.8 A — 21.7 g 2.095 g/W
26000 Gemfan 40mm Bi-blade propeller 1S — 1 A — 8.9 g 2.405 g/W
26000 Gemfan 40mm Bi-blade propeller 1S — 1.5 A — 12.9 g 2.324 g/W
26000 Gemfan 40mm Bi-blade propeller 1S — 2 A — 16.6 g 2.243 g/W
26000 Gemfan 40mm Bi-blade propeller 1S — 2.5 A — 19.8 g 2.141 g/W
26000 Gemfan 40mm Bi-blade propeller 1S — 3 A — 23.5 g 2.117 g/W
26000 Gemfan 40mm Bi-blade propeller 1S — 3.5 A — 26.9 g 2.077 g/W
26000 Gemfan 40mm Bi-blade propeller 1S — 4 A — 29.2 g 1.973 g/W
26000 Gemfan 40mm Bi-blade propeller 1S — 4.38 A — 31.4 g 1.938 g/W

Manufacturer bench figures (Happymodel bench, 23000 KV (Gemfan 31mm bi-blade, Gemfan 40mm bi-blade) and 26000 KV (HQPROP 31mm bi-blade, Gemfan 40mm bi-blade) at 1S (3.7 V); 5-7 current steps per run, 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

PropSizeBladesWeight
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. Both of this page's windings are on the one SE0702 post, and each RUN carries its own no-load block rather than each winding: 0.41 A / 46670 RPM (23000 KV, 31mm) and 0.43 A / 46290 RPM (23000 KV, 40mm), 0.35 A / 51070 RPM (26000 KV, 31mm) and 0.54 A / 50540 RPM (26000 KV, 40mm), i.e. measured 23335 / 23145 and 25535 / 25270 KV. Identity with Happymodel's own block is the 7 mm x 2 mm stator, a Ø1 mm shaft, 9N12P, Ø9.5x14 mm, 1S-only and both of this page's KV appearing as its KV options. One source fact recorded rather than repaired: the post states the weight twice and differently - 1.46 g in its opening prose, 1.5 g in its Specifications block - which is exactly where this page's 1.46 g and our separate SE0702 28000 KV page's 1.5 g come from. Happymodel sells one SE0702 in three windings (23000 / 26000 / 28000); this catalogue carries it as two pages, which is a merge question for a human, not something a transcription burst should decide.

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