Prop Help 4082 1900Kv

[Aaron5178]

Hi All :)

I'm fairly new to RC boats, but have gotten really into it... currently running a 4082 1900kv on 6s monohull.

I want to know what is the biggest high rake and abc prop I can run from OSE - chasing speed! Have used a Aliexpress high rake prop 48mm 1.9 pitch (CNC) hitting speeds of 79mph.

Current thinking is 5016 high rake and 1916-17.45 - are those too big? Considering it ran a 48mm 1.9 for speed runs with 68F motor and ESC 90F temps not an issue at this stage.

Keen to hear your thoughts!

[NativePaul]

Is that the Vietnamese anodised 1.9 props? If so while I haven't measured on myself, I have heard that they are a long way from 1.9, you may find that the "same prop" from ABC gives you more top speed.

Having said that 79mph is already more than respectable for a mono, and personally I'd be more inclined to prop down than up from there to make it usable on more days per year with the water I typically have and to extend runtimes.

[Aaron5178]

Hi Paul,

Yes I'd say you're bang on the money there, it's from Aliexpress, so probably not even 1.9 pitch.

Hmm good point maybe I try that and see with similar prop. There's definitely more in it so want to get a couple more speed props to try. . I have a x445 and x447 for mucking around with.

Will see what others say as well - thanks for the feedback 😀.