Tools // Component Selector // T-Motor
T-Motor MN705-S KV125
professional heavy-lift brushless motor. Specs read from manufacturer page ↗.
29.91TWR
29.01EFTWR
13.46Thrust kg
0.450Weight kg
A$443.90Best price
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Specifications
| Brand | T-Motor |
|---|---|
| Model | MN705-S |
| Variant | KV125 |
| KV | 125 |
| Weight | 450 g |
| Max thrust | 13,459 g |
| Max power | 2,603 W |
| Peak power | 2,603 W |
| Winding resistance | 0.063 Ω |
| Poles | 24 |
| Max RPM | 4,720 |
| Hover efficiency | 9.43 g/W |
| Peak-throttle efficiency | 5.17 g/W |
| Grade | professional |
| Application | heavy-lift |
| Data confidence | reported |
| Thrust basis | measured |
| Efficiency basis | measured |
| Measured test points | 20 |
Measured thrust curve
Where to buy
| Vendor | Price | As listed | Stock | Lead days | |
|---|---|---|---|---|---|
| DrUAV CN | A$443.90 | USD 617.80 2-pack | backorder | 48 | buy ↗ |
Multi-pack listings are shown at their per-unit price so they stay comparable.
Thrust test points
| Propeller | Cells | Thrust g | g/W | Basis |
|---|---|---|---|---|
| unspecified | — | 13,459 | 5.17 | measured |
| unspecified | — | 11,340 | 5.70 | measured |
| unspecified | — | 9,252 | 6.33 | measured |
| unspecified | — | 8,276 | 6.67 | measured |
| unspecified | — | 7,349 | 7.09 | measured |
| unspecified | — | 6,902 | 7.26 | measured |
| unspecified | — | 6,572 | 7.47 | measured |
| unspecified | — | 6,224 | 7.57 | measured |
| unspecified | — | 5,924 | 7.79 | measured |
| unspecified | — | 5,457 | 7.92 | measured |
| unspecified | — | 5,078 | 8.15 | measured |
| unspecified | — | 4,781 | 8.52 | measured |
| unspecified | — | 4,458 | 8.73 | measured |
| unspecified | — | 4,076 | 9.05 | measured |
| unspecified | — | 3,797 | 9.43 | measured |
| unspecified | — | 3,615 | 9.57 | measured |
| unspecified | — | 3,364 | 9.63 | measured |
| unspecified | — | 3,154 | 10.07 | measured |
| unspecified | — | 3,003 | 10.46 | measured |
| unspecified | — | 2,757 | 10.80 | measured |
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 →