User manual for the Horizon Hobby Viper 70mm EDF2, covering safety, assembly, setup, and flight operations.
This manual provides safety precautions, assembly instructions, and operational guidelines for the Horizon Hobby Viper 70mm EDF2. It includes setup steps for the transmitter, battery, and components, as well as flight tips and troubleshooting. The manual also covers optional SAFE® Select technology and recommended parts for proper use.
The aircraft requires a 6-channel Spektrum receiver, 22.2V LiPo battery, and compatible transmitter. Safety warnings emphasize avoiding water, keeping batteries charged, and operating only in open areas away from people and traffic.
| Wingspan | 43.3 in (1100mm) |
|---|---|
| Weight | ~67–70 oz (~1899–1984g) |
| Motor | Motor 2860 KV1850 (EFLM1850) |
| ESC | 70A Brushless Switch Mode (EFLA1070EC5) |
| Servos | (7) (SPMA380, SPMA380R) |
| Receiver | Spektrum™ AR636A 6-Channel Sport Receiver (SPMAR636) |
| Recommended Battery | 22.2V 3300–3800mAh 30C 6S LiPo with EC5 connector |
| Recommended Transmitter | Full-Range 2.4GHz with Spektrum™ DSM2®/DSMX® technology and adjustable dual rates |
The recommended receiver is the Spektrum AR636A. If you choose to install a different receiver, ensure that it is at least a 6-channel full range (sport) receiver.
The weight is approximately 67–70 oz (~1899–1984g).
The center of gravity should be 80–90mm back from the leading edge, measured at the wing root.
The flight timer setting is 4 minutes.