LUNN DYNAMICS

Tools  //  Component Selector  //  EMAX

EMAX 2807 ECO II KV1300

hobby fpv brushless motor. Specs read from manufacturer page ↗.

55.46TWR
37.20EFTWR
2.64Thrust kg
0.048Weight kg
A$28.01Best price

Compare in selector Buy from DrUAV

Specifications

BrandEMAX
Model2807
VariantECO II KV1300
KV1,300
Stator2807
Weight48 g
Max thrust2,640 g
Test propellerHQ 7x4x3
Test cells6S
Max current52.0 A
Max power1,310 W
Peak power1,288 W
No-load current1.30 A
Winding resistance0.058 Ω
Poles14
Shaft diameter4.0 mm
Body diameter33.9 mm
Body height34.0 mm
Max RPM13,900
Hover efficiency3.26 g/W
Peak-throttle efficiency2.05 g/W
Gradehobby
Applicationfpv
Data confidenceverified
Thrust basismeasured
Efficiency basismeasured
Measured test points1

Where to buy

VendorPriceAs listedStockLead days
DrUAV CNA$17.78USD 49.49 4-packbackorder48buy ↗
DrUAV CNA$19.84USD 55.22 4-packbackorder48buy ↗
DrUAV CNA$22.71USD 63.22 4-packbackorder48buy ↗
DrUAV CNA$23.94USD 33.32 2-packbackorder48buy ↗
DrUAV CNA$25.20USD 70.14 4-packbackorder48buy ↗
DrUAV CNA$25.87USD 72.02 4-packbackorder48buy ↗
DrUAV CNA$27.82USD 19.36backorder48buy ↗
Pyrodrone USA$28.01USD 19.49in stock 6 left14buy ↗
Phaser FPV AUA$29.95AUD 29.95in stock 27 left3buy ↗
DrUAV CNA$29.99USD 20.87backorder48buy ↗
DrUAV CNA$31.98USD 89.00 4-packbackorder48buy ↗
DrUAV CNA$33.12USD 92.19 4-packbackorder48buy ↗
DrUAV CNA$33.70USD 23.45backorder48buy ↗
DrUAV CNA$33.70USD 23.45backorder48buy ↗
Pyrodrone USA$34.47USD 23.99in stock14buy ↗
DrUAV CNA$35.05USD 24.39backorder48buy ↗
DrUAV CNA$35.93USD 25.00backorder48buy ↗
Phaser FPV AUA$35.95AUD 35.95in stock3buy ↗
DrUAV CNA$37.10USD 103.26 4-packbackorder48buy ↗
Pyrodrone USA$37.35USD 25.99backorder44buy ↗
DrUAV CNA$37.37USD 104.02 4-packbackorder48buy ↗
DrUAV CNA$40.35USD 56.16 2-packbackorder48buy ↗
Phaser FPV AUA$41.33AUD 41.33in stock 3 left3buy ↗
DrUAV CNA$42.62USD 29.66backorder48buy ↗
DrUAV CNA$47.80USD 33.26backorder48buy ↗
Phaser FPV AUA$55.18AUD 55.18in stock3buy ↗
Phaser FPV AUA$58.95AUD 58.95in stock 2 left3buy ↗
Pyrodrone USA$64.65USD 44.99in stock 123 left14buy ↗
DrUAV CNA$142.27USD 99.00backorder48buy ↗

Multi-pack listings are shown at their per-unit price so they stay comparable.

Thrust test points

PropellerCellsThrust gg/WBasis
HQ 7x4x362,6405.41measured

Compatible accessories

Parts this catalogue holds that fit this component, and the evidence behind each pairing. Fit is inferred from published specifications, not from having tried it. Confirm mounting and clearance before you buy.

measured This propeller size appears in this motor’s own thrust-test table.

AccessoryTypeFrom
Gemfan 7x4 3-blade propellerpropellerA$1.79
Phaserfpv 7x4 3-blade propellerpropellerA$4.95
HQProp 7x4 propellerpropellerA$4.95
DALprop 7x4 2-blade propellerpropellerA$5.73
APC Propellers 7x4 propellerpropellerA$5.98
HQProp 7x4 3-blade propellerpropellerA$6.95
Master Airscrew 7x4 propellerpropellerA$6.98
Master Airscrew 7x4 3-blade propellerpropellerA$18.00
Rotorriot 7x4 3-blade propellerpropellerA$5.73

rule of thumb The size conventionally run on a stator this big. Not a measurement -- check clearance and current draw before flying it.

AccessoryTypeFrom
Gemfan 7x5 propellerpropellerA$3.70
APC Propellers 7x5 propellerpropellerA$4.47
APC Propellers 7x3 propellerpropellerA$4.98

CAD model

No CAD model linked yet.

How the metrics are calculated

TWR is max thrust divided by motor weight, motor only, static, excluding propeller and ESC. EFTWR scales that by hover efficiency and RPM headroom, so it equals TWR for a motor at 8 g/W and 10,000 RPM. Full methodology and the whole catalogue →