Mono 33" Twin Setup, build advices

[Alfa Spirit]

Hi,
I' m building a 33" mono twin setup,
Motors : 2960 , 2200kV , 1800 Watts maxi
ESCs : 2 x Seaking 90A
Batteries : 4S 3300mAh 60C - 120C Lipo per motor

Any advice is welcome.

[Crash]

sounds really cool. Good luck with your build...….

[Alfa Spirit]

Thanks, do you have an idea about diameter and pitch for the propellers ?

[srislash]

Geez, I guess you’ll have to go CNC to get CR props but I’d think 37mm could be a good size, maybe 35mm? I have a 40” twin mono running 442’s and it is running 50mph. TP 4030 1180kv on 8s 4200mah. I know it’s a different setup but it gives you an idea that you don’t need huge props to do well.

[Alfa Spirit]

I was thinking about 38mm x 1,4 pitch for the props ...

[RunningBeer]

I've built a couple of twin monos,there are pics on my page

[Alfa Spirit]

I've built a couple of twin monos,there are pics on my page

Thank you for sharing, cool boats !

What is the setup of the Delta Force Pirate ?

[RunningBeer]

It's currently 2x SSS 4082 2200 KV on 4S with 150 amp raider ESC's and 44mm 1.4 props. Cheers .R Beer. p.s. A generous hatch size is important when selecting a hull for a twin!

[Alfa Spirit]

@ RunningBeer

You build a "double" setup mono ! 4082 motors ... Is it a very fast boat ?

[RunningBeer]

There's a bit of vid from an early run here https://www.youtube.com/watch?v=tobZ3H2icco . It's quick enough for my driving. The best part is how tight it can carve left and right turns.

[Alfa Spirit]

I have 2 sets of motors :
- 2 x 2960 2200kV , 175 Gr per motor
- 2 x 3660 2400kV , 240 Gr per motor

3660 motors are too heavy imho, what do tou think ?

[RunningBeer]

The twin pursuit on my page had twin 3660's 2200KV on 4s. It's a similar size to what you are building.It was a weapon but I didn't reinforce the hull and she broke after several large crashes. I'm no expert but I think the 29's will struggle to dissipate the heat on a boat that big.

[Alfa Spirit]

If I use 3660 2400 kV motors I' m afraid the boat will be heavy , + 130 Grammes.

[akula]

Hello Alain !

How are you ??

Do you really intend to start such a project ??
Do you know that you will have to use a drill and make holes in your hull ??
You should do like the other boats you have, and leave it in peace on a beautiful shelf.

cheers