Ran My UL-1 Today...

[Capt. Crash]

I'm not having any issues with cooling at all....in fact everything is staying around 100 degrees or less and this is after a 1 1/2 mile run with the upgraded Grimracer 40X57X3 prop. Are you running it full tilt boogie? I run all out... all the time except when I have to let off for short moments for corners or chine walk or whatever. Did it heat up with the stock prop too?

[Doby]

Replaced correctly

There is so minimal contact with a coil,,,even if you are able to wrap it snugly so that all the coils make contact with the motor can.

A jacket provides 100% contact with the water to the motor can over the length of the jacket.

Not aout the logic you are using,,,but good luck,,,looking froward to seeing the results

[detox]

My boat quit on the water and it took me roughly 10 minutes to retreave it so there were no temp readings. All I know is the boat shut down. I am sure it was caused by too much on and off throttle (esc shutdown) because of the fast loose condition (no control using bigger detunged 645 prop).

The coil will cool motor good enough for me and is lots cheaper... plus I "know" it flows more water which should be better for cooling ESC. Cooling the ESC is far more important I think...Just My Opinion.

[properchopper]

[QUOTE=detox;73657]My boat quit on the water and it took me roughly 10 minutes to retreave it so there were no temp readings. All I know is the boat shut down.

I've been holding back reporting this 'cause I don't want to start another slam session, BUT the SC on the UL-1 went fully defectoid. With fresh batt's, she'd go about 3 seconds & quit. Wait about 1 min. & then maybe 10 sec. runtime, then nothing for @ 1 min., then repeat. Soldered on fresh 5.5's on the SC/motor wires. No diff. Popped in the UL-1 SC from my LSO boat & ran fine. Sent in for warrantee replacement last Monday & will wait & see what response I get. BTW, SC temps never appeared anything near "too hot"

[Capt. Crash]

That doesn't sound like the same problem as in the first post to me.

One thing does bother me though...I've yet to get to the LVC or stutter bump and the batteries were @ 11 percent capacity according to the meter after the last run....I didn't think to record voltage though.

[detox]

I've been holding back reporting this 'cause I don't want to start another slam session, BUT the SC on the UL-1 went fully defectoid.

What prop were you using when this happened?

[properchopper]

What prop were you using when this happened?

40X57/3 S&B. I know it couldn't be due to the thermal protection circuit because it happened cold. Batt's were freshly charged so the LVC was not the likely cause. I simply put in another UL-1 SC & all was good. The replacement SC had the Etti Cap board on it, BTW. I'll do the same to the next one when it arrives.

Just so you know, the SC with the Etti cap board was out of my LSO 29" mono, which needs to run 4 minute races, so I want to keep the voltage stabilized & avoid any LVC interference, theoretically, I might add.

[Rumdog]

Had the same issue. After owning this boat for about a month now, i'm Really starting to dislike it!! Don't get me wrong, The spped is great, handles great, but I cannot believe the number of B.S. issues that a "RTR" boat is giving me. At first it wasn't so bad mainly because I enjoy modding and customizing. But, i've had MAJOR structural issues! Here's my list so far.

-plastic headers both cracked and fell off as did one mirror
- rear of starboard sponson near turn fin, cracked all the way through. first run.
-water cooling jacket........ we all know of these two.
-Cracked hull behind both sponsons. no impact damage. thoght the were just gelcoat till water seeped through.
-esc malfunction. not sure why. running octura 440/3 sharpened/balanced professionally. runs for about 30 seconds and shuts down. re-arm it and it shuts down again as soon as i go more than half throttle. running 2x2s 4000mah 25c packs.

These issues have been more than enough to get me quit agitated. I wish I would have just went with the Delta Force Vortex build I was going to do. I'm gonna have to try to get ahold of Aquacraft on this one. I wish I could just get my money back on this one!!

[detox]

You may have a swollen capacitor. Have you ran a prop larger than 440/3?
Read here:
http://forums.offshoreelectrics.com/...ead.php?t=6750

[Rumdog]

That was the first thing that I checked. There appears to be no physical damage to the esc. The only props I have ran are the stock plastic prop and the 440/3. On one run the motor coupler began to fray the coating on one of the battery leads and the tiniest bit of wiring. I melted some solder to the wiring to compensate for any loss of wiring and taped it up. My esc problems were occuring before this happened though. I'm confused!?

[Rumdog]

I was on and off throttle quite a bit. I can see how this would heat things up a bit. BUT, should this really occur to the point where the esc thermals? Seriously?! If the esc cannot handle the amp load of the motor then the boat should have a much better esc. my old SV27 never ever thermaled. God knows that I abused the hell outta that boat too!

[Rumdog]

Thanks detox, i'll give that a whirl tomorrow. Hope i'm as lucky as you! By the way William Murderface has gotta be your fav, no?

[alvinsmith75]

You may have a swollen capacitor. Have you ran a prop larger than 440/3?
Read here:
http://forums.offshoreelectrics.com/...ead.php?t=6750

Ya know the funny thing is when I contacted Hobby Services about my issue they told me that "We have not had any problem at all with our esc's".

[detox]

Thanks detox, i'll give that a whirl tomorrow. Hope i'm as lucky as you! By the way William Murderface has gotta be your fav, no?

Yes...he's my favorite.

William Murderface (voiced by Tommy Blacha) is Dethklok's bassist. He plays a Gibson Thunderbird Studio 5-string. He has brown hair, lime green eyes, a heavy lateral lisp and a diastema. Murderface's father killed his wife with a chainsaw before turning it upon himself in front of Murderface in a grisly murder-suicide. Murderface is "a self-hating bass player who's always trying to act like he's more important than he is," in part because his bass playing is usually mixed out completely.

Brendon Small describes Murderface as "thin-skinned and incredibly sensitive and just wants to be accepted constantly but can’t get that because he’s such a dick and pushes people away". Murderface's voice was originally achieved by Tommy Blacha putting paper towels inside his mouth when voicing the character, but he has since refined his technique to avoid the paper towels.