Is it practical to power a quad with T-Motor NM601S 320kv motors and 20 inch props using a Matek H743 -Slim and a Holybro Tekko32 F4 Metal 4in1 65A ESC??
What’s your definition of practical? It should work, but cooling that ESC is going to be super important. To me it doesn’t seem like it would be a long-term, high value, high reliability, kind of set up because the ESC is going to be working on it’s high end all the time. But if you’re looking for some high power, go to the moon kind of fun it sound good.
By practical, I mean is it going to fall out of the sky?
Do you mean that ESCs will be running at high amps? So the Matek H743 would be OK but not the ESCs?
Typically with 20" motors, most people opt for individual ESCs. Every thing here is within it’s limits, but depending on how hard you are going to push this quad the ESC will be seeing high current (amps). Again, it should work but continually beating on it will be hard on the ESC.
You might want to run the setup through ecalc.ch and see what it has to say. You’ll need to figure out what your all up weight is going to be, but it should be able to give you a better idea of how well it will work rather than just some guy on a forum doing napkin math.
Agree with @Allister here. You may be thinking of a stack with that FC and ESC. The FC is fine but that configuration on a 20” frame may not be the best plan relative to cooling. I had that combo on a 7” on 6S and it would get pretty warm driving it hard.
If per arm is 65A, that’s fine. The maximum ampere is only 34.20A, but if the entire handling ampere is 65A, then it is no.
That was also my confusion when the ESC manufacturer did not mention it clearly. Some better manufacturer will mention this in their manual. It is not a standard as I know.
By the way, T-Motor advertises it under a fixed-wing motor. I think is MN601-S and not NM.
@dkemxr @Allister Thanks for the feedback! I’m trying to build photographic cruiser which I can hang beneath a Pixy U gimbal or a 3D camera using an Arris M900 frame. The problem of course is trying to fit everything in the frame. I tried a Kore board and an Cube Orange but run out of space. A Matek H743 and individual ESCs could work. Any suggestions on ESC’s??
Thanks for clarifying that! Now searching for alternative ESC’s!
The choice for single ESC’s has been fractured with the demise of BLHeli_32 but there are still units around that are worth using. iFlight Blitz E80 would be one. I have not actually used this ESC but I have others and they are solid. Just be aware they link to the Test version of BLHeliSuite which is 32.9 so it’s likely that’s what they come with and can’t be updated. There are AM32 units around but Ardupilot may just not be ready for prime time there depending on which one you choose.
Other than that there is T-Motor…
I have some ALPHA 60A ESCs that come with the motors. Any comments on them?
Looks like 4x iFlight Blitz E80 ESCs and a Matek XCLASS PDB FCHUB-12S could be a workable substitute for the Holybro Tekko32 F4 Metal 4in1 65A ESC?
Thanks for the help!!