BetaFPV 0702SE II

BetaFPV 0702SE II
Image: racedayquads.com
Stator0702
KV options23000, 27000
Weight1.45 g
Shaft1mm
Max cells1S
DimensionsØ9x12.75 mm
Max thrust35.4 g
Price (approx.)52.99 USD

At 1.45 g it is right at the class average across the 11 0702-class motors in our database (avg 1.49 g).

Best props for the 0702SE II

Gemfan 1210 2-blade, Gemfan 1208 3-blade or Gemfan 1219S 3-blade (31 mm whoop props, BetaFPV)

Thrust data (BetaFPV bench test)

KVPropBatteryThrottleCurrentRPMThrustEfficiency
23000 GF 1219S-3P 1S 10 0.15 A — 0.55 g 0.92 g/W
23000 GF 1219S-3P 1S 20 0.57 A — 2.7 g 1.18 g/W
23000 GF 1219S-3P 1S 30 1.01 A — 5.48 g 1.36 g/W
23000 GF 1219S-3P 1S 40 1.42 A — 8.93 g 1.57 g/W
23000 GF 1219S-3P 1S 50 1.83 A — 12.3 g 1.68 g/W
23000 GF 1219S-3P 1S 60 2.3 A — 16.08 g 1.75 g/W
23000 GF 1219S-3P 1S 70 2.67 A — 20.56 g 1.93 g/W
23000 GF 1219S-3P 1S 80 3.12 A — 24.5 g 1.96 g/W
23000 GF 1219S-3P 1S 90 3.49 A — 27.5 g 1.97 g/W
23000 GF 1219S-3P 1S 100 4.19 A — 32.0 g 1.91 g/W
27000 GF 1219S-3P 1S 10 0.22 A — 0.7 g 0.8 g/W
27000 GF 1219S-3P 1S 20 0.77 A — 2.76 g 0.9 g/W
27000 GF 1219S-3P 1S 30 1.39 A — 5.94 g 1.07 g/W
27000 GF 1219S-3P 1S 40 1.92 A — 9.65 g 1.26 g/W
27000 GF 1219S-3P 1S 50 2.42 A — 13.69 g 1.41 g/W
27000 GF 1219S-3P 1S 60 2.9 A — 18.35 g 1.58 g/W
27000 GF 1219S-3P 1S 70 3.34 A — 22.4 g 1.68 g/W
27000 GF 1219S-3P 1S 80 3.86 A — 26.9 g 1.74 g/W
27000 GF 1219S-3P 1S 90 4.32 A — 30.92 g 1.79 g/W
27000 GF 1219S-3P 1S 100 5.2 A — 35.4 g 1.7 g/W

Manufacturer bench figures (BetaFPV bench, 23000 and 27000 KV windings, one run each on a Gemfan 1219S-3P at 1S (4 V); 10 throttle points (10-100% in 10% steps) on each); real-world thrust varies with ESC, battery sag and prop condition.

Thrust-to-weight with this motor

RPM & prop speed on this motor

Flies on these BNF quads

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

Bench rows, dimensions and the prop list are from BetaFPV's own "Outline Drawing / Load Performance" sheet image for the 0702SE II on betafpv.com/products/0702-ii-brushless-motors, which heads itself "0702SE II 23000KV / 27000KV" and carries a ten-row table for each winding. Identity with our RaceDayQuads listing is four figures: both 23000 and 27000 KV, 1.45 g including the 35 mm connector, a 1 mm shaft and 1S. Max thrust is 35.4 g, the 27000 KV 100% row, where the page carried none - and the page's comparison table states exactly those two maxima, 32 g at 23000 KV and 35.4 g at 27000 KV, as the sheet's two 100% rows print them (32.00 and 35.40 g). Two source facts recorded rather than repaired: weight is stated per winding, 1.45 g at 23000 KV and 1.47 g at 27000 KV, and our page carries the 23000 KV figure our retail listing prints for both; and the lower winding is the more efficient one at every throttle point but the top, peaking at 1.97 g/W against 1.79. 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.

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