| Outrunner Brushless Motor A/R4120 |
Use this motor with 4-6 cell Li-Poly packs and 11-13 inch props on planes up to 8 lbs flying weight. We suggest
propping for around 800 watts continuous. Manufacturer suggests a 12 x 8 prop on 5 cells or 13 x 11 on 4 cells.
Similar to AXI Gold 4120/14, Welgard C5055-06, E-Flite Power 46. Roughly equivalent to .46 2-stroke or .65 4-stroke
glow engines.
Recomended model weight:2000 - 3500g/4.4-7.7 lb.
Recomended prop without gearbox:12 cells 13"x11", 14 cells 13"x8", 16 cells (5s Li-Poly) 12"x8"
propping for around 800 watts continuous. Manufacturer suggests a 12 x 8 prop on 5 cells or 13 x 11 on 4 cells.
Similar to AXI Gold 4120/14, Welgard C5055-06, E-Flite Power 46. Roughly equivalent to .46 2-stroke or .65 4-stroke
glow engines.
Recomended model weight:2000 - 3500g/4.4-7.7 lb.
Recomended prop without gearbox:12 cells 13"x11", 14 cells 13"x8", 16 cells (5s Li-Poly) 12"x8"
Specificaton
|
|
No. Of cells |
RPM/V |
Max. efficiency current |
NoLoad current / 10 V |
Current capacity | |
|
Ni-MH |
Li-Poly | |||||
|
A4120/6 |
9-12 |
4-6 |
710 KV |
26 - 45 A (>81%) |
2.6 A |
60 A / 60s |
| R4120/6 | 9-12 | 4-6 | 640 KV | 25 - 50 A (>84%) | 3.2 A | 70A /60s |
|
A4120/7 |
9-12 |
4-6 |
610 KV |
20 - 40 A (>81%) |
2.0 A |
55 A / 60S |
|
|
Max. efficiency |
Shaft diameter (mm) |
Weight with cables |
Internal Resistance |
Dimensions (mm) |
|
A4120/6 |
84% |
6 mm |
309 g 10.90 oz. |
33 mohms |
50 x 55 |
| U4120/6 | 90% | 6 mm | 280g/9.88 oz. | 15 mohms | 50 X45 |
|
A4120/7 |
85% |
6 mm |
309 g/ 10.90 oz |
41 mohms |
50x55 |
| Recomended model weight | Recomended prop without gearbox | ||||
| R4120/6 | 2000 - 3500g 4.5 -8.0 lbs | 12 cells 13"x11" | 14 cells 13"x8" | 16 cells (5s Li) 12"x8" | |
A4120/7 Datasheet
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