VStabi Pioneer of Flybarless

BEC data (Manufacturers data)
Voltage: 8,2V
Durable current: 10A
Peak current: 15A
Additional: Scorpion Backup Guard

Test components / settings
Logo 800 XXTreme w/o blades
Swash servos: Savox SB 2271 SG
Tail servo: Savox SB 2272 MG
Standard VStabi Blueline
Futaba S-Bus
Pitchpump 100


The Scorpion backup guard should give you a voltage stabilization in flight and a backup power source for a possible BEC failure.

It is able to improve the voltage in normal use - but having a look at the peaks we'll notice its limits.

The RC voltage drops down of about 4 Volts here. The current draw grows up to 15 A. This combination seem to work well on the field but having a look at our scope we will notice that the rest voltage of 4,2 V is a bit low.

If you unplug the WR BEC and test the guard function, you have a possible working heli (Voltage drops down from 5 to 3V in a direction change) but event log entries:

This backup isn't safe. 5 Amps are far too less for HV servos in a 800 machine ...