Shocker First Maiden Run -- ESC Literally BLOWS through Hull

[Luck as a Constant]

With the Flysky you have to set the fail safe. Also, the antennas are fragile, so of it was damaged in any way, it will do that as well.


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[dmitry100]

kfxguy: You better be making at least 6 digits a year to just be burning $500 LMT's like that, man! :| How did that happen anyway?

That did make me feel a tad bit better about my situation though so thanks!

What radio system do you use for your Swordfish's... maybe this flysky crap doesn't work too well for it?

[Luck as a Constant]

The radio has nothing to do with the esc bud.
Ive had Flysky do that with a t180 before.


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[dmitry100]

Ah ok, well then these SF ESC's must be pretty bullet proof for this setup then... they lasted till the motors gave out completely with decent temps. Makes me wonder now if it was even going full throttle... I'll check out the logs. Any of you guys have issues with the Swordfish software on Windows 8.1? I'm unable to view the window fully to see all the buttons and options as it seems like it must need a certain screen size or version of windows.

[tlandauer]

Go to Control Panel. click on "display" and make sure your screen is set on "Smaller 100% or default." See if that helps, I had a ton of trouble and it turns out that was my problem.
Although I am not familiar with Windows 8.1, I am using W7....

[dmitry100]

Oh! I'll try that. Thanks, man! Thats one of the things I forgot to try. Tried like everything besides that.

[dmitry100]

That worked great, tlandauer. Thanks again!

Anyway... you guys were right-- I wasn't even getting full throttle (looks like 50% from the data), yet the boat moved quick too... from looks of it around 50-60mph.

Got some data from the 2 ESC's... Took off the 2 TP motors earlier and they are both melted/cracked for sure. :\

Do any of you guys use temperature telemetry of any sort with cut off fail safes? That would prob be a good idea moving forward to avoid potential melt downs in the future...

ESC_Right_2nd.jpg

ESC_Left_1st.jpg

[kevinpratt823]

What the heck motors are you running that gave you 93,000 and 53,000 rpm at full throttle with no load?! Something is off there.
I see they both ran about 53,000, and one jumped up to 93,000 at the end, what kv were they?

[kfxguy]

kfxguy: You better be making at least 6 digits a year to just be burning $500 LMT's like that, man! :| How did that happen anyway?

That did make me feel a tad bit better about my situation though so thanks!

What radio system do you use for your Swordfish's... maybe this flysky crap doesn't work too well for it?

i use a Spektrum dx4s

[T.S.Davis]

I've never had a Swordfish that worked. Just will not run for me.

Looking at the graphs, is one image one speedo and the other the other speedo?

Looks like one had a max throttle of 85% and 100% on the other. Has to be something screwy there. 8200+ watts on one of them.

It could always be worse. I was running a fresh carbon boat about a month ago. New batteries and everything. Flipped, hatch tape failed, sank in 2 seconds. No floatation cuz I'm stubborn. Gone forever.

[kfxguy]

I've never had a Swordfish that worked. Just will not run for me.

Looking at the graphs, is one image one speedo and the other the other speedo?

Looks like one had a max throttle of 85% and 100% on the other. Has to be something screwy there. 8200+ watts on one of them.

It could always be worse. I was running a fresh carbon boat about a month ago. New batteries and everything. Flipped, hatch tape failed, sank in 2 seconds. No floatation cuz I'm stubborn. Gone forever.

I'm with you on the swordfish but after lots of cussing and throwing things I figured out that timing needs to be set to auto. See this thread I posted last night
http://forums.offshoreelectrics.com/...ish-timing-fyi


Terry, I bolt all my hatches. Lost one to tape only. Never again. Why now bolt them and use a foam seal? Makes life easy.

[Luck as a Constant]

Because some hatches aren't that simple. Try your bolt and foam idea on a mean machine with the original hatch and Lmk how that works out for ya lol


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[kfxguy]

Because some hatches aren't that simple. Try your bolt and foam idea on a mean machine with the original hatch and Lmk how that works out for ya lol


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If you have the skills, anything is possible. Terry seems to have good skills so most boats would likely be doable for him. The boat you refer to, is it fiberglass? Does it have a lip to keep the hatch from falling in? If so, I'm sure it's doable. Pm me a picture of it so we don't clutter this already cluttered thread. I'm sure not all boats are doable, but if it is doable, then why not? But hey, once again you proved me wrong. Gosh...I must be pretty dumb. Lol.

[Luck as a Constant]

Eh... I don't really care that much.



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[dmitry100]

kevin: they were 2050kv on 6s revo's using original 3 blade 38mm props. The smaller up and down data right before the straight lines are my passes on load so the 50k rpm's were not on load but while it was upside down.

You remember how it flipped right ... well, the 93k rpm must of been a short or something right before the melt down of the motor while it was upside down. These guys were both 82% and 100% full throttle while upside down for a good few minutes... both motors gave out right before I fished them out with my pole. Kind of scary to watch that thing screaming spinning in circles like a hydrocraft.... totally caught me off guard. Was being super cautious about temps too-- checking them on every good pass or so. Probably retaped hatch like 5 times before this happened. These hulls aren't too stable on turns, are they... That, or I forgot to give it throttle when doing the turn... as it wasn't even going that fast before it flipped. Wind must of probably helped.