Tools // Component Selector // BrotherHobby
BrotherHobby 3120 KV700
hobby fpv brushless motor. Specs read from manufacturer page ↗.
No thrust figure applies. Either the manufacturer publishes none, or this is a robotics/direct-drive motor where torque, not thrust, is the meaningful rating.
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Specifications
| Brand | BrotherHobby |
|---|---|
| Model | 3120 |
| Variant | KV700 |
| KV | 700 |
| Stator | 3120 |
| Weight | 0 g |
| Poles | 12 |
| Grade | hobby |
| Application | fpv |
| Data confidence | reported |
| Thrust basis | none |
| Efficiency basis | none |
| Measured test points | 0 |
Where to buy
| Vendor | Price | As listed | Stock | Lead days | |
|---|---|---|---|---|---|
| Pyrodrone US | A$97.70 | USD 67.99 | backorder | 44 | buy ↗ |
| DrUAV CN | A$99.16 | USD 69.00 | backorder | 48 | buy ↗ |
| DrUAV CN | A$99.16 | USD 69.00 | backorder | 48 | buy ↗ |
Multi-pack listings are shown at their per-unit price so they stay comparable.
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.
rule of thumb The size conventionally run on a stator this big. Not a measurement -- check clearance and current draw before flying it.
| Accessory | Type | From |
|---|---|---|
| HQProp 9x4.5 3-blade propeller | propeller | A$4.40 |
| APC Propellers 9x6 propeller | propeller | A$5.98 |
| APC Propellers 9x3.8 propeller | propeller | A$5.98 |
| APC Propellers 9x4.5 propeller | propeller | A$5.98 |
| APC Propellers 9x7.5 propeller | propeller | A$6.98 |
| APC Propellers 9x8 propeller | propeller | A$6.98 |
| APC Propellers 9x4.7 propeller | propeller | A$6.98 |
| Master Airscrew 9x4 propeller | propeller | A$7.98 |
| Master Airscrew 9x5 propeller | propeller | A$7.98 |
| Master Airscrew 9x6 propeller | propeller | A$7.98 |
| Master Airscrew 9x7 propeller | propeller | A$7.98 |
| APC Propellers 9x4 propeller | propeller | A$7.98 |
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 →