I'm trying to figure out why this happened and hopefully I can get some insight from the members here. The only thing I can think of is a manufacturing defect that finally came up now for some reason.
I have a Miss Geico 29 cat that I've pretty much replaced all the internals on. Specs are as of now:
1900kv 3674 motor
4S (2 - 2S in serial)
SeaKing 180A ESC
48mm cnc prop
I've run the boat at least 2 other outings (multiple packs) with no problems. Sure the motor gets warm, but usually temps are under 130. The ESC has NEVER gotten even warm to the touch. I knew the ESC was overkill for my setup, but I wanted to error on the safe side.
Today, I took it out. Made a slow lap around the lake at about 50% throttle. Came around for a pass and opened it up. Went top speed like normal for about 100ft and must have taken a bad wave and took a submarine trip. The entire boat speared underwater for a ways but since it's water tight it popped right back up. Of course, I left off the throttle even before it went underwater.
After it came back up, it studdered for a second and then started moving again. I was only giving it enough throttle to get it to move, no where near full. It went about 10feet and then POOF. The hatch popped up and tons of smoke. It was practically on fire.
I used my rescue boat and towed it back in only to find the ESC practically exploded.
Here's a pic:
ESCBlow_sm.jpg
Now, WHY would this just blow like that? With zero warning on a setup that's worked on multiple outings previously. The only thing I can put my finger on was some sort of defect of the ESC. No caps were puffed or anything prior to this. I'm lost and frustrated.
I have a Miss Geico 29 cat that I've pretty much replaced all the internals on. Specs are as of now:
1900kv 3674 motor
4S (2 - 2S in serial)
SeaKing 180A ESC
48mm cnc prop
I've run the boat at least 2 other outings (multiple packs) with no problems. Sure the motor gets warm, but usually temps are under 130. The ESC has NEVER gotten even warm to the touch. I knew the ESC was overkill for my setup, but I wanted to error on the safe side.
Today, I took it out. Made a slow lap around the lake at about 50% throttle. Came around for a pass and opened it up. Went top speed like normal for about 100ft and must have taken a bad wave and took a submarine trip. The entire boat speared underwater for a ways but since it's water tight it popped right back up. Of course, I left off the throttle even before it went underwater.
After it came back up, it studdered for a second and then started moving again. I was only giving it enough throttle to get it to move, no where near full. It went about 10feet and then POOF. The hatch popped up and tons of smoke. It was practically on fire.
I used my rescue boat and towed it back in only to find the ESC practically exploded.
Here's a pic:
ESCBlow_sm.jpg
Now, WHY would this just blow like that? With zero warning on a setup that's worked on multiple outings previously. The only thing I can put my finger on was some sort of defect of the ESC. No caps were puffed or anything prior to this. I'm lost and frustrated.
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