RC Flying: How to install a UBEC to power only the retracts.

Here is a quick video showing how to wire in a UBEC to your RC power setup.
A UBEC provides you with a second source of power that you can use to power certain servos, etc, like retracts or flaps.
Once you start flying large aircraft, ie: over 1,500mm that use larger servos. The SBEC in the ESC may not have enough amps to provide adequate power to all the servos if all the servos are in use at one time.
Providing the retracts and flap servos with their own power supply, ensures that the other servos connected to the receiver will always have adequate power.
As always, do your own research.

[@etiennehogue8780]

Finally A good explanation, it seems no else can provide these instructions clearly.

[@danb.4571]

Outstanding. The factory instructions want all the UBEC power transferred to the receiver while eliminating the SBEC, which I did not wish to do. This cleared up all my questions. Thanks for a nice, concise explanation.

[@heydonray]

Well enough and thanks for the supreme effort that went into this vid. HOWEVER, I am at a loss for a reason to only supply the retracts rather than the entire Rx and ALL servos. No more effort for more safety.

[@jbfordfocus]

The retract motors draw a lot of power for a few seconds that reduces the available power to your other more critical servos. ie: When coming into land, you activate flap servos + your retracts, plus you are using all the control surface servos, so keep the retracts out of this power loop is preferrable. Also, servos do have a tendency to burnout and short pulling a huge amp draw. To have all this isolated through the UBEC keeps the critical services still operating. But to answer your questions, you could put both flaps and the retracts through a UBEC.

[@flashthunder829]

Outstanding explanation

[@tulushadi]

i have been looking for this.. thanks for the video

[@dDevilsrReject]

Thanks, some good info in this vid.

[@michaelvidal9234]

Excellent, this will be used on my Rans S-20

[@franciscoe.9989]

***** Respect *** Great Presentation

[@Lawzy]

Thanks for creating this overview. Can you or any of your viewers please tell me whether the common ground (UBEC, receiver, servo) is still needed if the receiver is being powered by the UBEC? Or can the receiver/servo common wire be removed? Thanks.

[@powerofdreamx]

Thank you

[@whiteboy8236]

thank you

[@allanhvidt-nielsen7777]

Good explanation. just one question, as the servo is already powered by the Ubec, would it not work with only the signal wire going back to the reciever??
Or do you really need the negative as well?

[@prov418]

I have the same question, I think you may be right. I don't know enough, but it seems like this method is creating ground loops which I assume are best to avoid.

[@leksychannel7332]

Great 👍👍 , btw may I ask, this is a dual output, can the two outputs be different from each other, for example 1 for the 8.4v servo, the other 5v for the lights

[@leksychannel7332]

😁Can you make a follow-up video about settings with two different voltages, then what must be considered so that there are no installation errors 😊