Recommendations for outrunner and speedo for undercutter

[daveimi]

As title, looking for advice on a meaty outrunner and speedo please.

[R9000]

What voltage are you thinking? I have one of these, but it needs a 10-12s LiPo really. Solid motor though. https://hobbyking.com/en_us/turnigy-...size-heli.html

[daveimi]

Was thinking 3s but am realising there's not much about at that voltage in the larger sizes. Was umming and arring about putting the blade straight onto the motor...

[Andy]

5s is probably the most common and easy to use voltage for a spinner in feathers, any of the motors in the 6s/1+kw range on hobbyking could do the trick.

Also putting a blade straight onto a motor in featherweight scale, without being heavily modded, would die on the first hit almost definitely

[typhoon_driver]

I've snapped brushless shafts with nothing more than the pulley on them. You need extra support and you want to go as high a voltage as you can manage.

[daveimi]

Ok no worries.

[Flag Captured]

6s can be plenty enough, HW3 gets to some crazy speeds with 6s and limits. Don't direct drive however, you'll ruin the motor easily - even beetleweights using that trick break themselves