Tools // Component Selector // SunnySky
SunnySky X2820
hobby uav brushless motor. Specs read from manufacturer page ↗.
advertised This thrust figure is the one the vendor advertises, read from their product copy. The throttle setting, propeller and cell count behind it are frequently unstated, so it is a guide rather than a measurement.
Compare in selector Buy from SunnySky USA
Specifications
| Brand | SunnySky |
|---|---|
| Model | X2820 |
| Stator | 2820 |
| Weight | 143 g |
| Max thrust | 3,441 g |
| Max current | 65.0 A |
| Max power | 960 W |
| Peak power | 1,172 W |
| No-load current | 1.30 A |
| Winding resistance | 0.026 Ω |
| Shaft diameter | 5.0 mm |
| Max RPM | 13,211 |
| Hover efficiency | 4.30 g/W |
| Peak-throttle efficiency | 2.94 g/W |
| Grade | hobby |
| Application | uav |
| Data confidence | reported |
| Thrust basis | reported |
| Efficiency basis | reported |
| Measured test points | 12 |
Measured thrust curve
Where to buy
| Vendor | Price | As listed | Stock | Lead days | |
|---|---|---|---|---|---|
| SunnySky USA US | A$50.28 | USD 34.99 | in stock | 12 | buy ↗ |
| SunnySky USA US | A$50.28 | USD 34.99 | in stock | 12 | buy ↗ |
| SunnySky USA US | A$50.28 | USD 34.99 | in stock | 12 | buy ↗ |
| SunnySky USA US | A$50.28 | USD 34.99 | in stock | 12 | buy ↗ |
| SunnySky USA US | A$50.28 | USD 34.99 | in stock | 12 | buy ↗ |
| SunnySky USA US | A$64.59 | USD 44.95 | in stock | 12 | buy ↗ |
| SunnySky USA US | A$64.59 | USD 44.95 | in stock | 12 | buy ↗ |
| SunnySky USA US | A$64.59 | USD 44.95 | in stock | 12 | buy ↗ |
| SunnySky USA US | A$64.59 | USD 44.95 | in stock | 12 | buy ↗ |
| SunnySky USA US | A$64.59 | USD 44.95 | in stock | 12 | buy ↗ |
| SunnySky USA US | A$64.59 | USD 44.95 | in stock | 12 | 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 | — | 3,441 | 2.94 | reported |
| unspecified | — | 3,000 | 3.00 | reported |
| unspecified | — | 2,750 | 3.18 | reported |
| unspecified | — | 2,500 | 3.48 | reported |
| unspecified | — | 2,250 | 3.69 | reported |
| unspecified | — | 2,000 | 3.97 | reported |
| unspecified | — | 1,750 | 4.30 | reported |
| unspecified | — | 1,500 | 4.76 | reported |
| unspecified | — | 1,250 | 5.15 | reported |
| unspecified | — | 1,000 | 5.68 | reported |
| unspecified | — | 750 | 6.26 | reported |
| unspecified | — | 500 | 6.89 | reported |
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 |
|---|---|---|
| Gemfan 7x4 3-blade propeller | propeller | A$1.79 |
| Gemfan 7x5 propeller | propeller | A$3.70 |
| APC Propellers 7x5 propeller | propeller | A$4.47 |
| Phaserfpv 7x4 3-blade propeller | propeller | A$4.95 |
| HQProp 7x4 propeller | propeller | A$4.95 |
| APC Propellers 7x3 propeller | propeller | A$4.98 |
| DALprop 7x4 2-blade propeller | propeller | A$5.73 |
| HQProp 7x4.5 2-blade propeller | propeller | A$5.73 |
| Gemfan 7.1x4 3-blade propeller | propeller | A$5.95 |
| Gemfan 7x3.5 2-blade propeller | propeller | A$5.95 |
| Gemfan 7x4.2 2-blade propeller | propeller | A$5.95 |
| APC Propellers 7x3.8 propeller | propeller | A$5.98 |
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 →