My rebuilt UL1

[alvinsmith75]

I haven't run since replacing the cap yet but I blew the cap and have replaced it with these new ones. I am also using a Fullers strut, Hughey cable, and octura collet. I didn't take a pic but there is an air damn under the boat as well made from balsa that I coated in epoxy and attached with double sided tape. Hoprfully I will be able to see the water flow from the discharge better with the brass tube I added. Still no leak from water jacket and no stress cracks. Knock on wood.

[detox]

Now it will be easier to see the water exiting stern. How did you fix your ESC? Does it work like new now?

[alvinsmith75]

I just replaced the blown cap. Brian Buass told me how to do this. It works fine on the bench but has been too windy to throw in the water. I'll post when I try it to let everyone know.
Alvin

[LuckyDuc]

Could you post a "How to" thread on replacing a blown capacitor? I'm sure many of us UL-1 owners might find that very helpful.

It looks like you had a fire in the hull based on the pics. What happened?

[Capt. Crash]

Y'all must have better eyes than me to see water coming out this hauling boat! I don't see why it matters if ya can see it, as long as she's running cool?

[detox]

Y'all must have better eyes than me to see water coming out this hauling boat! I don't see why it matters if ya can see it, as long as she's running cool?

Who peed in your Corn Flakes Capt. Crash?


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[Capt. Crash]

Who peed in your Corn Flakes Capt. Crash?


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Hey I wasn't meaning it ugly! I was just wondering why you need to see the water jet?

[detox]

Like all water cooled boats it's just good to know that water cooling system is operating correctly. Using the 45 degree bend just allows you to see it better.


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[Capt. Crash]

I'm all for functionality, but I also like clean looks. If I could get rid of the ugly external tubing hanging off the back of this boat I would. My cracker box boat has the cooling intake and outake on the bottom of the hull. Works just fine and looks great cause ya can't see it.

[jingalls007]

just curious what caused the ESC to fry in the first place.

[alvinsmith75]

Too large of a prop! Not that the prop was too big but I ran it longer than the esc could handle. It was an m645. It looked awesome though. Too bad I forgot to start timer on the GPS. The fire was from the Etti ESC I tried afterwards.

[jingalls007]

Too large of a prop! Not that the prop was too big but I ran it longer than the esc could handle. It was an m645. It looked awesome though. Too bad I forgot to start timer on the GPS. The fire was from the Etti ESC I tried afterwards.

I cooked my ESC with an X645 detunged and the boat basically popped a wheelie across the water and it was pretty awesome. Im going to hook up a 120 amp controller and try it again, see what happens. What was your amp rating on your ETTI? I may rethink the X645 if it's going to burn up a new controller.

[alvinsmith75]

Dude my etti was the 150 non bec and it didn't last 4 minutes. I would try a xl motor with the 120, then you should be safe.

[detox]

Here's a neat chart written by Brian Buaas for Castle. I think this chart is for Lipo's with lower 20c rating. The Fiago motors may or may not allow smaller battery sizes?

http://www.castlecreations.com/support/documents/neumotors-castle_boat_apps.pdf

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[alvinsmith75]

UPDATE!!!!!
Got to run the beast today. Cap upgrade worked great. Ran about 2 min. with stock prop @ 41.7 on GPS. Then I swapped props and ran another 2min with a (I think)38x55 2 blade Grim racer @ 43.9mph. I have strut depth @ 1and a 16th with 1deg. neg. and air dam. 2 thunderpower 4s 3850mah in parallel.




Boat is nose heavy sitting in the water with lipo's. Had to punch it to get on plane. Will put gps in rear next time.

VIDEO!!!!!!!!!!!!

http://www.youtube.com/watch?v=CfDPIfcY43Q

Oh yeah and I can see the water coming out better and temps were as follows
ESC 114
Caps 120
Motor 130
Batts 106
Time for a more aggressive prop!