Utilising both BECs in the FT Cruiser

If you are using ESCs with switched BECs, or if you are not shure wether one BEC alone can power all the servos in your FT-Cruiser, you may be interested in my solution.

(caution: bad german english perfectly spoken)

You power one half of your RC Gear with one BEC and the other half from the other without connecting both circuits.

Note: Spektrum users must always power the Rx from the throttle channel

The ESCs I use have 3 linear regulaters each. They can handle 2 - 4 Cells. The BECs are ratet at 3 A. As a rule of thumb the 3 A are delivered only if using 2 Cells. At 3 Cells there will be 1.2 A and at 4 Cells only 0.7 A available. The reason is, that linear regulaters get hotter when the voltage difference raises. So if you beef up your plane, you weaken your power supply. Dividing the load will help preventing brownouts.

Combining thottles is one VMIX (Channel 3 Master, Channel 8 Slave). Mixing Rudder to the ESCs is made by two VMIXes in my Futaba. Channel 4 Master Channel 1 and Channel 8 Slave.