Adverrun AVR XS Contra Drive V3
Adverrun AVR XS Contra Drive V3
The Adverrun AVR XS V3 is a lightweight contra-rotating drive unit designed for F3A pattern aircraft, featuring a more rigid structure for improved belt wear and a new main gear design for reduced noise. It comes fitted with the EGODRIFT 4025EC Eclipse Series 550KV motor and includes a spare belt, with the motor shaft supported by a bearing in the front carbon fibre plate and alloy screws used to save weight.
Designed for 10S LiPo packs, this drive supports propeller diameters from 20 to 23 inches and delivers ample power for typical F3A flight, with a helical Delrin gear and belt drive requiring minimal maintenance. Front and rear mounting utilise rubber isolator mounts to minimise noise transmission, and the rear mount allows for small side thrust adjustments.
Key Features
| Brand | Adverrun |
| Model | AVR XS V3 |
| Motor | EGODRIFT 4025EC Eclipse Series 550KV |
| Battery | 10S LiPo |
| Propeller Range | 20 to 23 inches |
| Recommended Propeller | Front: 22x20 / Rear: 22x22 |
| Maximum Current | 90-120A |
| RPM | 4,300 RPM |
| Gear Ratio | 4:1 |
| Motor Poles | 10 |
| Timing | 15° |
| Weight (without accessories) | 475 g (1.05 lb) |
| Weight (with spinner and accessories) | 560 g (1.23 lb) |
| Construction | Carbon fibre, alloy, Delrin |
| Mounting | Rubber isolator mounts |
| Included Items | Drive unit with motor, spare belt |
Highlights
- Rigid structure for improved belt wear
- New main gear design reduces noise
- Grub screws in pinion and small pulley for easy maintenance
- Helical Delrin gear and belt drive require minimal maintenance
- Rubber isolator mounts minimise noise transmission
What's included
- Adverrun AVR XS V3 contra drive with EGODRIFT 4025EC motor
- Spare belt
- Mounting screws and rubber isolator mounts
Frequently asked questions
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