Bad Day At The Pond

[knpc]

These are some pictures of what is left of my cc 120 esc. It had been running hot so during the week I shortened the wiring and proped down to try to get it to run cooler. I'm not sure where I've gone wrong on the setup of this boat but I'm almost ready to give up on it and start fresh.

[drgreenthumb91]

How many cells were you running ? and what motor?
I fried a cc80 pretty quick one time because they really cannot handle 6 cell lipo or 22 volts.

[knpc]

I was running 2 4s packs in parallel. This happened 3 min into the run and I'm glad I had plenty of tape on the hatch, it was one hell of a BANG.

[crazzy maxx]

jezz. that sucks.
how far out was the boat??

[knpc]

It was 75ft from shore, I have an apache as a rescue boat so that wasn't a problem.
It is a 29'' Titan with cc 120esc and a fiagao 9xl x440 prop

[Fluid]

ESCs will take excessive amps for a time, but the damage is cummulative. They may not fail until later with what is considered a conservative setup. Because you said it had gotten "hot" before, that is likely when the damage happened. I once lost a Hacker Navy 77 on a conservative run - but I had abused the controller for over a year first. With the much higher power of LiPos over NiMH cells, ESCs are more easily stressed. We have to be smarter in how we use/abuse them if we want them to last.

Be certain to sent the burned parts back to Castle, you can get a new controller for far less than the new price.

.

[knpc]

Thanks for the tip on sending it back and getting a discount, I wasn't looking foward to dropping another $180.

[SJFE]

I will buy that cooling plate. How much?

[knpc]

need to check with castle first and see if there is a price break if I send them the old parts. If not, just pay the shipping and it yours.

[Diegoboy]

I will buy that cooling plate. How much?

Gotta admire SJFE. Most of the time, he's looking at everything and asking himself "Can I use that?"

[SJFE]

Kevin keep me posted please. I don't want a hand out I will pay cash or a parts swap.

Diego my friend it's a little more than most of the time . It's really a two part train of thought. A can I use it & B how can I get it....lol

[knpc]

I will contact castle this week and let you know what they say. Time to start thinking of my next build, the heat of blowing the esc damaged the hull beyond repair. Fortunately the lipos were far enough away and were fine. Any Suggestions

[SJFE]

Depends on what you like hull wise. I find myself drawn to the mid to large size hulls now.

[knpc]

My budget would limit me to 30'' to 32'' hulls. I have a 9xl, hydra 120, and 4s lipos to work with(could change motor...its cheap) I was thinking of a delta 29 or cyber storm 33. I would like something that ran low to mid 40s and stable in small chop becuase of where I use it.

[G Doggett]

TOYSPORT TRITON
OK it is more expensive than the 2 you have suggested, BUT the gellcoat finish is so good you don't need to spend money painting it, it doesn't need any internal reinforcing as it has carbon fibre inside, it handles real well in the speed range you are talking about, and last but not least it looks like a real boat.
Graham.