phoenix 35: how far can i push it?

[gotboostedvr6]

I plan on running it on 3s and often times on 4s and will be pushing the amps.. It will have decent airflow.

is it rated for the same amp draw on 3s and 4s/ the watts on 4s will be higher..

[Bernie Wolfard]

Usually, when you go up in voltage you use a lower Kv motor to get the same RPM. This makes a system more efficient as voltage goes up and amperage goes down. Voltage is our friend, amperage is not. If you increase voltage the same Kv motor will spin faster and greatly increase the energy it consumes unless the load is reduced (I.E. smaller prop). Increasing RPM with the same load is a square root function (amperage goes up very quickly as RPM increases).

I can concur that our Phoenix line is underrated. I cannot and will not say by how much. If you use a Phoenix at over its rated capacity it will work until it fails, the user is the tester and you are on your own. We will not warranty an ESC used beyond it rated capacity. However, we try to stay neutral on questions like this. If you can afford it I say go for it. I love destruction testing. And yes, air flow has a big positive affect on how much current an ESC can handle.

Bernie

[gotboostedvr6]

thanks for the reply. i'll try to be more specific

if i use my phenox 35 on 4s and 35 amps @ 13.5 volts @ 472 watts will it tend to hold up if it has some airflow over it?

[Fred Bronk]

Sounds well within specs. 35 amps continuous is the magic number, with proper cooling ;)

Watts is just the power output of the system.

FB

[lestingoy]

Don't forget that you really should not expect the BEC on the controller to have much capability at 3S, and you should not use it all on 4S. Remove the red wire from the throttle connection to the RX and make provisions for a power supply for the RX and servos.

The BEC capability is a direct relationship with the temp of the controller. May look fine on the ground but at the end of a nice flight, or at least the controllers' idea of the end of a nice flight, the temp may exceed the capability of the BEC circuit and the flight will be ending soon. More volts = less BEC.

Lee

[Bernie Wolfard]

Phoenix 35 on 4s and 35 amps @ 13.5 volts @ 472 watts will it tend to hold up if it has some airflow over it?

The first formula looses about 80% of the readers. But this is pretty easy so lets go.

472/13.5 = 34.962962962962962962962962962963 amps ;)

With 5mph + airflow the P-35 will have no problems.

Bernie

[gotboostedvr6]

:) thank you