User manual for the Horizon Hobby Viper 70mm EDF, covering safety, setup, programming, assembly, and maintenance.
This is the user manual for the Horizon Hobby Viper 70mm EDF, an electric ducted fan system for model aircraft. It includes safety warnings, setup instructions, programming for compatible transmitters, model assembly, and operational tips. The manual also covers maintenance, troubleshooting, and optional components. It is intended for users aged 14 and up and requires mechanical familiarity for safe operation.
The manual provides detailed steps for pre-flight checks, transmitter programming (including SAFE Select setup for DX6 and DX6e), model assembly, CG adjustment, and flight tips. It specifies required components such as a 6S LiPo battery, Spektrum AR631 receiver, and EFLA1070EC5 speed controller. Safety precautions are emphasized throughout, including keeping the model away from people and vehicles, using only fully charged batteries, and avoiding water exposure. This manual is written in German.
| Motor | Motor 1850 Kv (EFLM1850) |
|---|---|
| Rotor | 70mm 12" mantelpropeller (EFL A7012DF) |
| Speed Controller | 70A brushless switching mode (EFLA1070EC5) |
| Servos | 7 (SPMA380, SPMA380R) |
| Landing Gear | Main and nose gear (EFLG130, EFLG131) |
| Receiver | Spektrum AR631 Sport Receiver (6 channels) |
| Recommended Battery | 22.2V 3300–3800mAh 30C 6S LiPo |
| Recommended Transmitter | 2.4GHz with Spektrum DSM2/DSMX and adjustable dual rates |
| CG Position | 80–90mm from leading edge of wing root |
The recommended battery is a 22.2 V 3300–3800mAh 30C 6S LiPo-Akku.
The motor model is Motor 1850 Kv (EFLM1850).
The recommended receiver is Spektrum AR631 Sport-Empfänger mit 6 Kanälen (SPMAR631).
The recommended transmitter is a complete 2,4 GHz with Spektrum DSM2/DSMX-technology and adjustable dual rates.