42" Cat build

[TotalPackage]

If this isnt real world experience I dont know what is

:


Mr Bradley just so you know Ive been model boating for over 20 years rc modeling for over 30 not tyco the real deal and im learning from "newbs" sometimes.
My circus(active canards) im building now was brought in 1990 for example

[TotalPackage]

Peoples first Boat means alot to them if you were like me. So we are ultra sensitive to people say about it per se. All this chatter being irrelevant can we help this man get his boat running?

[Blackjack-sven]

So considering I have the 2 4000mah 50c 5s1p batteries, a 1600kv motor, and an 80hv esc coming my way what would be the biggest prop i could use to keep the amps in the esc's means? Cause as it sits right now the motor can handle up to 36v and my batts if kept in parallel will be far under that voltage. the amp draw is then dependant on the size and pitch of prop right?

I was thinking an m430

[DV8ion]

Sven, why do you want to run 80 ? I say stick the the 50's and you will be happy (as will your boat). Champaign dreams on a beer budget. LOL Just teasing ya. Catch me if you can and I'm not using my boat to push yours back in.

[TotalPackage]

the 1600 kv motor;what make is it?

[DV8ion]

Pretty sure he is wanting to run the KB45 8XL from HK
http://www.hobbyking.com/hobbyking/s...idProduct=4937

[TotalPackage]

OK single 5 s2p start with a 645 but the guys are right u not gonna be able to get around that 80 hv anything more than 1 min 2min all out id be scared of. If you drive it stop and go stop and go your rms power on that turnigy is lower than 80 and your max draw on you kb is higher than 98 amps just do the math. Its not safe at all.

[tiqueman]

Sven, another great tool that you could download on here is FeCalc. If you do not have it, I suggest downloading it. You can plug in different motors and most of the time if it doesn not have your specific motor on it, you can find one w/ similar ratings and stats, select prop, etc and it will calculate a speed and amp draw estimate. So far Ive found it very useful and its been suprisingly accurate. If you do not have it, I or someone can find the link to the dowload. Most importantly for what info you just gave us, as TP asked, what motor is it. As said previously by whom ever it was, just because a motor can handle 36V, the esc must be able to handle the amps its gong to draw as does the motor. You are on the right idea about swinging a smaller prop, but also as said by Fluid I think it was, earlier, a 30mm prop is too small a diameter for a almost 37" boat. That being said, you must use a higher rated esc that will allow for more prop, which will cause more load which in turn is more amperage.

[TotalPackage]

Sven you need to hit the swap shop hey let us see what you got take a pic TIQUE he could run a screamer something so big and slow it wouldnt draw anything he might do 40?
A t180 is damn near mandatory for a kb

[TotalPackage]

seriously though he could hit 50 with that kb and the right prop probably a x450-455 But you gotta let the 80HV go sorry If you running that kb it needs to be unshimed too

[tiqueman]

Sven you need to hit the swap shop hey let us see what you got take a pic TIQUE he could run a screamer something so big and slow it wouldnt draw anything he might do 40?
A t180 is damn near mandatory for a kb

Im lost, take a pic of what?

Oh wait, never mind, I put the mystery period in the wrong spot. It makes sense now.

[TotalPackage]

Sorry I was askin Sven to show us his equipment

[Blackjack-sven]

the equipment han't shown up yet. but you guys say I might hit 40??
My Genesis in this YT vid is already doing 40+ mph

http://www.youtube.com/watch?v=LfdviE48euY

[Blackjack-sven]

@TotalPackage
The equipment han't shown up yet. but you guys say I might hit 40??
My Genesis in this YT vid is already doing 40+ mph

http://www.youtube.com/watch?v=LfdviE48euY

Pretty sure he is wanting to run the KB45 8XL from HK
http://www.hobbyking.com/hobbyking/s...idProduct=4937

10xl. I already have two 8xls and a 6xl.

[Blackjack-sven]

Sven, why do you want to run 80 ? I say stick the the 50's and you will be happy (as will your boat). Champaign dreams on a beer budget. LOL Just teasing ya. Catch me if you can and I'm not using my boat to push yours back in.

Your trying to push 80 as well bro.