36? Aeromarine Avenger? Out of hibernation and Round 3 with it .

[rearwheelin]

Pulled it out of the rafters and started on bolting in the esc and built some cables to parallel 2 8000mah 6s batts. I had a lot of fun 7 years ago building this and never really got it going except for 2 trips to the pond and 2 blown esc?s. Much lower kv motor now. I plan to ad water cooling to the speed control. Round 3 go DD1E1DBC-E5F8-4742-B9A3-0B59BE0C9415.jpg

[larryrose11]

Nice!!
I suspect that you will end up moving the batteries back a bit to get the CG right.

[rearwheelin]

Nice!!
I suspect that you will end up moving the batteries back a bit to get the CG right.

Absolutely! I had battery trays but pulled them out for the rebuild. I might test the esc/ motor combo out like this and if it works out then I?ll dive into it farther

[rearwheelin]

I?m building a oil immersion esc cooler it?s going to fit front or rear of the motor with CG being good either way with 16,000mah of 6s. I?ll probably try my best to place it between the motor and servo so I can get my CG right with smaller batteries. I plan on water cooling the top and bottom of enclosure. The motor is a 8,400 watt 5650/1150 kv.E9F5892A-4B83-4D4D-863B-4788B1CBD900.jpg

[rearwheelin]

There is 4 sections to this esc oil submersion enclosure. The bottom 3 have been Hondabonded and top rebolted until the semi drying compound cures. The top and bottom sandwich the center 2. Tomorrow I?ll disassemble and drill the top holes for the esc wires and cut into 3 sections, I?ll have a rubber plug to fill it. I will coat the inside aluminum sections with a layer of JB to prevent electrical shorts. And I?ve decided it?s going right here, fits in there like a glove:thumbup1

A65B24EE-AD7D-4E27-8616-2BFCE637F761.jpg

[rearwheelin]

Scrapped the oil bath . I figured a way to modify the xlx casing. This is going to take a few days due to JB cure time.E6000220-8E88-43D2-BB58-6D7C2DFA0B12.jpg

[rearwheelin]

The esc in this boat is very important with this motor so I’m building it up accordingly since I build all of my boats for long run times it has to be on top in the cooling department. These heat sinks will be bonded directly and there will be no going back.6EF7A6F7-5F58-4BE0-8D06-7AD7B774B808.jpg

[rearwheelin]

F5B0D1CF-232A-4C08-AC1F-B08D3BF7E543.jpgProgress report, it?s turning out good. I?ve been speeding up cure time with my heat gun. I still have 2 more cooling tubes to add.

[fweasel]

I've got a Castle XL2 with similar modifications in my Rivercat that Kfxguy built.

IMG_20200419_161232.jpg

Build thread was here if you were looking for any other ideas.

[rearwheelin]

I've got a Castle XL2 with similar modifications in my Rivercat that Kfxguy built.

[ATTACH=CONFIG]168700[/ATTACH]

Build thread was here if you were looking for any other ideas.

Nice ! I still call KXFguy once in a blue moon. I always enjoyed watching him push the limits ! I’m epoxying the last cooling tub. This esc has 3/8 square for heat sinks. I like the way he did his.

[rearwheelin]

ESC modded and layout

It will go in there something like this. The lexan esc mount will be switched for aluminum and esc bonded with JB effectively creating a huge water cooled heat sink when bolted up. I like this

E72F913A-73F2-40F4-9D88-3D91A6E2492B.jpg

[rearwheelin]

E9492940-22D7-4C0F-A70D-4FFDEED02090.jpg

[fweasel]

It will go in there something like this. The lexan esc mount will be switched for aluminum and esc bonded with JB effectively creating a huge water cooled heat sink when bolted up. I like this

You're going to want use a thermal paste between the ESC and aluminum if you want heat transfer. JB Weld will probably act as an insulator.

[rearwheelin]

You're going to want use a thermal paste between the ESC and aluminum if you want heat transfer. JB Weld will probably act as an insulator.

JB is actually a great conductor of heat and not conducive.
There is a thin cured layer before the final layer to be sure nothing will short out. JB may not be “the best” but it does work.

https://www.overclockers.com/forums/...re-to-J-B-Weld

[fweasel]

Interesting read, thanks for the link. I've always used stuff like Arctic Silver myself.