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Old Jan 23, 2015, 02:21 PM
Mahogany Aficionado
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Germany, HE, Flörsheim am Main
Joined Aug 2012
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HK pursuit battery set-up

Hi,

I'm about to finish my pursuit and I'm wondering which setup would be ideal.

I've changed the trim to the flex trim L from H&M, allwowing me to run way more props then the original one and the grease will stay inside.

Motor is a leopard 3674/1900kv 4 pole esc 120A, prop H&M 43mm, 1.4pitch.

Now the winning question, what battery setup would be ideal?

I'd like to go with 5s 2p, but my concern is that the weight will be too high. I'd prefer some more runtime.

What would be the maximum weight I can add? Is 1000g feasible?
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Old Jan 23, 2015, 04:52 PM
Mahogany Aficionado
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Germany, HE, Flörsheim am Main
Joined Aug 2012
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I did order a turnips aquastar 160a esc and 2 nanotech 5s1p 5000mAh packs. I Hope the hxt connectors will stand the load as they are rated only at 95A.

So this will add 1.2kg of battery weight to the boat, but I hope that because of running on 5s, the amperage will stay low and the setup will give me a lot of runtime.
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Old Jan 24, 2015, 08:21 AM
I feel the need for speed!
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Southern U.S.
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I ran 2p in my pursuit, the extra weight is actually nice in it, stays planted and runs true thru the corners. I think that prop is a good choice for that voltage/motor, i wouldnt go any bigger though.
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Old Jan 25, 2015, 05:07 AM
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Germany, HE, Flörsheim am Main
Joined Aug 2012
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Thanks. This makes me happy. I was concerned about the additional weight.

I hope the Turnigy Aquastar 160A will stand the load.

I ordered some additional props from PropShop in the UK. A 5 blade 43mm with 1.2 Pitch and a 4 blade 35mm 1.4 pitch for rough water.

I've been told that more blades create a more harmonic noise, I'll find out
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Old Jan 28, 2015, 04:02 PM
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Germany, HE, Flörsheim am Main
Joined Aug 2012
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Wow, that's a lot of weight, but the first dry run went smooth.
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Old Jan 28, 2015, 05:52 PM
I feel the need for speed!
scorpion1's Avatar
Southern U.S.
Joined Jun 2008
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As an RCG boater it is obligitory that you provide us Junkies with vid!!!!! Love the color!

What prop did you run.............what batt setup? 4s2p 10,000mah total? I'm asking cuz I only see two 2s batts in the pic(stacked possibly?)Speed?
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Old Jan 30, 2015, 05:25 PM
Mahogany Aficionado
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Germany, HE, Flörsheim am Main
Joined Aug 2012
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These are two 5s, 5Ah batteries

I didn't have her in the water as it's quite cold at the moment and my maiden voyages normally end in a burning boat I need to get out of the water by swimming
Just did test my setup without water so far, but at least nothing went up in flames (except the power supply I used with my new dual charger. It went up in smoke while trying to charge two 5s with 5A each in parallel )
Next weekend I'm meeting with other crazy people to test the baby.

Theoretical speed with the large prop, 97km/h

Hope I'll get the two other props tomorrow. They'll give 77 and 85km/h
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Old Jan 30, 2015, 07:31 PM
I feel the need for speed!
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Southern U.S.
Joined Jun 2008
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Didnt catch the dry run part cuz i dont do that and it didnt compute, hopefully you didnt have it wide open for a time, NOT good for it at all.

Waiting on vid
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Old Jan 31, 2015, 09:03 AM
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Germany, HE, Flörsheim am Main
Joined Aug 2012
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No, just for a short time. Without cooling this would be a bad idea.
Today he new props arrived. 35mm 1.4 pitch, four blade and 42mm 1.2 pitch five blades.

Maybe I'll try tomorrow, depending on the weather.
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Old Jan 31, 2015, 10:09 AM
I feel the need for speed!
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Curious to see how that 5 blader will do..............never seen one of those run on a mono
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Old Feb 01, 2015, 10:50 AM
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Do you think it will not work on a mono? What will be the side effects?
I didn't find anything useful in the net about multiblades.
Afaik, it will increase amperage, but reduce slip.
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Old Feb 01, 2015, 01:32 PM
I feel the need for speed!
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A 2 blade is what i have run almost exclusively, even on my hydros, 3 blades barely get on plane with the hydros and 2 blades pop it right up. I also like the fact that you can run more diameter with two blades allowing it to stay hooked up on corners.
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Old Feb 01, 2015, 03:53 PM
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Maybe. I just wanted to try if more blades make a more harmonic noise as stated in several places. As the areas where I can drive are a little bit sensible
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Old Feb 04, 2015, 04:25 PM
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Need to wait, this weekend, the weather will not allow the maiden voyage.

I did put it in the pond. Not sure if this is too much weight.
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Old Feb 05, 2015, 03:19 PM
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United States, FL, Mt Dora
Joined Feb 2007
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doesn't look like CG is correct. tail heavy. the weight is fine. can you do a video? would love to see how those props handle.

CG is around 10" from stern.
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