Scorpion A-4225-250kv V2
- Overview
- Technical specifications
- Videos
The Scorpion A - Series line of motors was designed to be the most optimal and premier choice of motor for your freestyle or UAV airplane. We have achieved incredible performance through incredible efficiency. By optimizing the magnets in the rotor, and using the best quality 0.2mm thickness silicon steel stator sheets, and single strand enamel coated copper wire windings rated above 250C+, the performance and efficiency results are unlike anything we have seen before! Combined with a robust design which has been tested extensively by our world class team pilots for longevity and reliability, we feel this motor checks and exceeds all measurable categories!
The A-4225-250kv was designed specifically for airplanes requiring a 90E / 20cc-25cc equivalent gas engine on 12s LIPO, or other airframes requiring up to 3108w of power.
Acrobatic Airplane size : 67" - 70"
UAV Airplane Weight : 8kg - 15+kg
Recommended Prop Selection :
For 12s -17x10E / 18x8E
Recommended ESC : Tribunus II 12-80A ESC SBEC
Full Dimension
Specifications
| Motor Kv | 250 RPM / Volt |
| Weight (Motor only) | 350g ( 12.34oz) |
| Weight (including mount + Prop mount accessories) | 398g (14.039 oz) |
| Motor Body Dimensions | 50.7mm x 50.9mm (+12.0mm prop spacer) (1.99" x 2.00" (+ 0.47") ) |
| External Shaft Diameter | 8 |
| Continuous Current | 45A |
| Continuous Power | 2220 Watts |
| Peak Current* | 70A |
| Peak Power* | 3108 Watts |
| Max Rated Lipo Cell** | 12s |
| Stator Diameter | 42.0 mm (1.65in) |
| Stator Thickness | 25 mm (0.98in) |
| No. of Stator Arms | 12 |
| Magnet Poles | 14 |
| Motor Wind | 10T Delta |
| Motor Wire | 11-Strand x 0.29mm |
| No-Load Current (IO/15V) | 1.54 Amps |
| Motor Internal Resistance (phase-phase) | 14 mΩ |
| Motor Inductance (phase-phase) @ 1khz | 10µH |
| *Our ratings are classified as TRUTHFUL. Continuous Current / Power correlates to actual sustainable power levels. Peak Power is for intermittent full throttle usage ranging from 5 - 60 seconds depending on use case and cooling* | |
| **Higher Cell Count possible with smaller prop usage** | |
Performance Charts
Use Case Applications
Included in the Box
1 x Scorpion A-4225 BLDC Motor
1 x A-42 Cross Mount (stock)
4 x M4 Cross Mount Mounting Bolts
3 x Female 4mm Connectors
3 x Heat Shrink
12 x 4x16x1 Thrust Shims
1 x M8 Nut + Prop Washer
3 x Scorpion Stickers
Weight including packaging
530g
7 minutes of 3D flight! A-4225 {Official Promo Video}
Santiago Perez - A-4225 PNP Combo - 70" EF Extra (6s)