BetaFPV 0702 II
| Stator | 0702 |
|---|---|
| KV options | 30000 |
| Weight | 1.55 g |
| Shaft | 1mm |
| Max cells | 1S |
| Dimensions | Ø9x12.75 mm |
| Max thrust | 37.2 g |
| Price (approx.) | 58.99 USD |
At 1.55 g it is 0.06 g heavier than average across the 11 0702-class motors in our database (avg 1.49 g).
Best props for the 0702 II
Gemfan 1210 2-blade, Gemfan 1208 3-blade or Gemfan 1219S 3-blade (31 mm whoop props, BetaFPV)
Thrust data (BetaFPV bench test)
| KV | Prop | Battery | Throttle | Current | RPM | Thrust | Efficiency |
|---|---|---|---|---|---|---|---|
| 30000 | GF 1219S-3P | 1S | 10 | 0.22 A | — | 0.71 g | 0.81 g/W |
| 30000 | GF 1219S-3P | 1S | 20 | 0.76 A | — | 2.91 g | 0.96 g/W |
| 30000 | GF 1219S-3P | 1S | 30 | 1.37 A | — | 6.5 g | 1.19 g/W |
| 30000 | GF 1219S-3P | 1S | 40 | 1.9 A | — | 10.0 g | 1.32 g/W |
| 30000 | GF 1219S-3P | 1S | 50 | 2.47 A | — | 14.36 g | 1.45 g/W |
| 30000 | GF 1219S-3P | 1S | 60 | 2.87 A | — | 18.75 g | 1.63 g/W |
| 30000 | GF 1219S-3P | 1S | 70 | 3.3 A | — | 24.0 g | 1.82 g/W |
| 30000 | GF 1219S-3P | 1S | 80 | 3.8 A | — | 28.6 g | 1.88 g/W |
| 30000 | GF 1219S-3P | 1S | 90 | 4.23 A | — | 32.4 g | 1.91 g/W |
| 30000 | GF 1219S-3P | 1S | 100 | 5.15 A | — | 37.2 g | 1.81 g/W |
Manufacturer bench figures (BetaFPV bench, 30000 KV winding on a Gemfan 1219S-3P at 1S (4 V); 10 throttle points (10-100% in 10% steps)); 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
Bench rows, dimensions and the prop list are from BetaFPV's own "Outline Drawing / Load Performance" sheet image on betafpv.com/products/0702-ii-brushless-motors, the first sheet read from this manufacturer. Identity with our RaceDayQuads listing is four figures to the digit: 30000 KV, 1.55 g including the 35 mm connector, a 1 mm shaft and 1S. Max thrust is 37.2 g, the 100% row, where the page carried none. One source fact recorded rather than repaired: the table's Model cell reads "0702SE II 30000KV" where its own Outline Drawing header one panel above reads "0702 II 30000KV" - the 0702SE II is a 23000/27000 KV motor on the same page's drawing, comparison table and spec block, and the same comparison table gives the 0702 II 30000KV a Max Thrust (GF 1219S-3) of 37.2 g, which is this table's 100% row, so the sheet is the 0702 II's and the "SE" in that one cell is not. The Speed (RPM) and Coil temp columns are struck through on every row of both sheets - BetaFPV publishes neither - so every row here carries no RPM. Every row's Input (W) is voltage x current exactly and its printed Efficiency is thrust / that power to the hundredth. The outline drawing puts three M1.4 holes on a 6.6 mm bolt circle ("3-M1.4EQS", the spec block's "Hole Distance: 6.6mm"), which is a bolt circle and not a mount span, so mount_mm stays empty; it also gives the body as O9 x 12.75 mm overall, 8.55 mm of body plus a 4.2 mm shaft, a 1 mm shaft over a 1.5 mm boss and a 35 mm 30AWG JST 1.25 3-pin lead. Recommended props are BetaFPV's own list, replacing our derived whoop-prop class. One product page sells three windings: 30000 KV is the 0702 II, 23000 and 27000 KV the 0702SE II, which is our separate page.