Help with my HOR32 needed...

**KillerDave** · 10-25-2009, 09:42 AM

Originally posted by KillerDave

And some more....

More.....

Attached Files

**KillerDave** · 10-25-2009, 09:48 AM

Originally posted by KillerDave

More.....

Some more..... This was just before the fire....

There is not much more that makes you as sick as watching you boat 50 feet away and bellowing acrid smoke.....

Attached Files

**KillerDave** · 10-25-2009, 10:19 AM

Originally posted by Fluid

Sorry about the burned up model! Like Steven said, the 12L should never be used with 6S in direct drive. It clearly over-amped the ESC and likely damaged the cells as well in the previous run. That would explain why it seemed slow on the final voyage - either the ESC or the packs or both were previously damaged. We'll need to know what actually burned up to help much more. Pics would be good.

.

Sorry, I didn't reply directly!
It was one of my Li-Po's that caught fire, the second was almost there having it's plastic cover splitting a little and it was so hot I couldn't hold it. I didn't have a Li-Po Guard bag with me and I did not feel safe on the way home..... I am amazed at the carnage that poor little battery has faced! Lol!

Does anybody know how to dispose of Li-Po's???

**Fluid** · 10-25-2009, 11:14 AM

...I don't think I would be drawing more than 60 amps??? Correct me if I am wrong though......

Okay, I will correct you. I suspect you were drawing well over 125 amps on average with that setup, perhaps more. The motor choice was entirely improper. The cells burned because they were over-discharged - either too far, or too fast, or both. They were likely not fully charged when starting on the final run, evidenced by their poor performance before they burst into flames.

We'll need to know what actually burned up to help much more. Pics would be good.

Actually what we really wanted to see was the inside of the boat, particularly the parts that burned. But since both LiPos overheated, then it is pretty clear they were over-discharged. Too much motor + too much voltage + damaged cells = bang.

Next time check with a few experienced FE boaters to check that your setup is reasonable before you buy. Again, sorry for your loss.

Disposal: Place the cells into a bucket of salt water overnight. Then remove them, wrap in newspaper and put in the trash.

.

**KillerDave** · 10-25-2009, 01:12 PM

Originally posted by Fluid

Okay, I will correct you. I suspect you were drawing well over 125 amps on average with that setup, perhaps more. The motor choice was entirely improper. The cells burned because they were over-discharged - either too far, or too fast, or both. They were likely not fully charged when starting on the final run, evidenced by their poor performance before they burst into flames.

Actually what we really wanted to see was the inside of the boat, particularly the parts that burned. But since both LiPos overheated, then it is pretty clear they were over-discharged. Too much motor + too much voltage + damaged cells = bang.

Next time check with a few experienced FE boaters to check that your setup is reasonable before you buy. Again, sorry for your loss.

Disposal: Place the cells into a bucket of salt water overnight. Then remove them, wrap in newspaper and put in the trash.

.

Thank you for the help with that, I was given the set-up from a supplier, it was recomended to me...

I will check with other set-ups and go with them...

Any other questions, I will place on here and see what comes up.....

I think I saw a post that said something like 'less rev's and more volts is the way to go'.....?????

Thanks again....

As Arnie said... 'I'll be back!' Lol!!

**domwilson** · 10-25-2009, 01:18 PM

Dave,
If you clamp the hull back together, Does it have any gaps? It looks like can repair it fairly easily.

**KillerDave** · 10-25-2009, 01:26 PM

Originally posted by domwilson

Dave,
If you clamp the hull back together, Does it have any gaps? It looks like can repair it fairly easily.

No, there are no gaps apart from the odd bit of gell coat chiped out.
I am going to start trying to repair it this next week....

**domwilson** · 10-25-2009, 01:31 PM

A similar thing happened to another forum member. Here is the thread and how to fix... http://forums.offshoreelectrics.com/...ad.php?t=10871

**KillerDave** · 10-25-2009, 01:39 PM

Thanks buddy! You're a star!

**domwilson** · 10-25-2009, 01:44 PM

Originally posted by KillerDave

Thanks buddy! You're a star!

You're welcome.
Just trying to help another FE boater out.

**DISAR** · 10-25-2009, 04:48 PM

This setup most probably draws 120-150 amps. Despite the damage I think you are very lucky since ESC and motor are still alive. If you want to be fast you need at least a 540 XL motor. What brand were your lipos? Cheap chinese lipos are not always what they say they are.
As mentioned before go for 4s with this motor. The repair should be fairly easy epoxy and fiber inside and on the outside it's up to you. Good luck!

**tiqueman** · 10-25-2009, 07:03 PM

I feel ya Dave. Im still gettin mine back together after a very similar mishap. http://forums.offshoreelectrics.com/...ad.php?t=10871 (as Dom already pointed out)
I decided to re-do a lot since I had to take it so far apart for repairs. Just take your ime, do it right and remember, its all part of the hobby. Just try not to let it happen again. Im still in the learning process of what motor to what hull to what ESC to what voltage. There is tons of good info on here from very knowledgeable people. Good luck with it.

**Steven Vaccaro** · 10-25-2009, 08:15 PM

First I would go over the vendors emails to see if he meant 12L or 12XL. A 540 11xl or 12xl is a better suited motor. Did you email the vendor?

To check a motor for damage I only know one way.
its a very unscientific way to check, but if you remove the rotor from the motor, it should have a very, very strong magnetic force. For example it will be just a bear to even remove the rotor from the casing. If it has a weak force, the magnets have been overheated.

**KillerDave** · 10-26-2009, 05:38 AM

Originally posted by Steven Vaccaro

First I would go over the vendors emails to see if he meant 12L or 12XL. A 540 11xl or 12xl is a better suited motor. Did you email the vendor?

To check a motor for damage I only know one way.
its a very unscientific way to check, but if you remove the rotor from the motor, it should have a very, very strong magnetic force. For example it will be just a bear to even remove the rotor from the casing. If it has a weak force, the magnets have been overheated.

Ha! That is very unscientific!!!

I am going to pull it apart tonight and see how it goes. It has also been sugested that the coils might be shorted and so the resistance has dropped and the amps loaded up??? Sounds very plausable to me so while it's in bits I'll measure the resistance.....????

**KillerDave** · 10-26-2009, 08:46 AM

Sorry Steven,

By 'vendor' you mean the guys I got the batteries from? or the rest????
I am going to check everything tonight, taking pic's as I go....
I thing I'm in for a long night in my shop.......

Help with my HOR32 needed...

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