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I'd like to know what other owners of this boat say about what their boat weighs with the batteries in it. I need to know if mine is too heavy. thanks
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Land, Sea & Air, A true RC Addict. -
about 6.9 Lbs loaded? OK. I got mine today. had a bit of things to fix on it out of the box. But i do inspect everything i buy and look over it to make sure things are ok. I havent gotten to really run it yet. Looks like it will be weighing in at 6.2Lbs or so with the 3S 5K 45C lipos. The box says it should weigh 2400g as rtr. I was just wondering maybe mine was too heavy.Land, Sea & Air, A true RC Addict.Comment
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I got it today. Few pics i snapped with my phone. When i put the props on i was thinking they would work better with the left prop spinning counter clockwise and the right spinning clockwise. idk made sense to me because it looked like the prop would grab more water comming off the hull in that way. But then i looked at the manual and seen it wanted me to have it setup the other way. So i pulled the cables out and swapped the cable and props around.Land, Sea & Air, A true RC Addict.Comment
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Thats a good looking hull.Id like to have one of those to replace my EKOS.Can you tell me where you got it again?Comment
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I got mine in the UK at http://www.elitemodelsonline.co.uk took about a week to get here shipped TNT
They carry 2 vesions of the boat as follows.
DRAGON MINI CAT 820EP 70A BOAT (R/C READY)
DRAGON-SAGA-MINI-CAT-820EP-70A-BOAT-RC-READY
Land, Sea & Air, A true RC Addict.Comment
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posted this on another fourm but i just cant get enough of it lolLast edited by JPriami; 08-17-2010, 08:51 PM.Land, Sea & Air, A true RC Addict.Comment
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I ran it today. it seems pretty cool. might be going about high 30"s to low 40"s. But the darn thing dosent seem to run for very long. I mean I might get 3mins of good run time. after that its a slug.
Is it because my lipos are 45C? are they discharging to fast? Would I get longer run times on a 20C pack? They are hyperion EX G3 3S 5000mAh 45C packs.
Whats the score here im kind of bummed out.Land, Sea & Air, A true RC Addict.Comment
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Yeah, twin motors suck down the juice pretty quick. This is where an eagle tree comes in handy.FighterCatRacing Team CHING BLING - Ching Bling. Brilliant, Advanced Sparkle for your hull.Comment
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ill be selling this pos if this is what i have to look forward too lol. move back to combustion enginesLand, Sea & Air, A true RC Addict.Comment
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No so much the C rating as the MAH. Think of the MAH as how big your gas tank is. Is it 3000,4000, 5000???? The bigger the the gas tank, the longer you can go.I ran it today. it seems pretty cool. might be going about high 30"s to low 40"s. But the darn thing dosent seem to run for very long. I mean I might get 3mins of good run time. after that its a slug.
Is it because my lipos are 45C? are they discharging to fast? Would I get longer run times on a 20C pack? They are hyperion EX G3 3S 5000mAh 45C packs.
Whats the score here im kind of bummed out.
C rating is just how much the amperage the battery can give up without being damaged.Comment
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Doesnt sound right to me.I have 4000mah packs in my EKOS and can get about 10 minutes of constant wide open throttle.Dont sell it just yet.We will all help figure this out.Dont be surprised about having issues come up with this boat.Its the same POS as the EKOS stock.You can either up grade everything,or get rid of it.Thats what I did and I still have problems sometimes.Not nearly as often as stock,but they are still there.If you do sell,let me know,but dont give up yet.Comment
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I'll still mess with the boat a while. I’m still waiting on parts I’ve ordered anyways lol.
A little electrical background I am a FCC licensed ham radio operator and I’m one of those that actually studied to pass his test to get his license ha-ha. Most people cheat and just study the questions and answers on the test question pools.
I am a little new to lipo batteries being most of my rc hobby has been gas or nitro. So I do ask many questions. And by no means am I nor declaring myself knowledgeable. But I do put a lot of thought into things trying to understand.
I understand about the mAh (miliamphour) is what the pack holds as its capacity. And the C rating is what it can safely discharge at. My progression of thought on the C rating affecting run time is as follows.
If you think of the battery pack like a tank of water. That holds 5 gallons. These 5 gallons would be the mAh. And the water valve opening diameter as the C rating. The larger the C rating the larger diameter of the valve opening & faster discharge rate of the water. And also the faster the tank will empty. I thought maybe there is a balance between mAh and C rating for what your setup needs and this balance gives you the most power and run time you can have. But if you don’t have enough or too much of either then this will shorten your runtimes or starve the electrical setup for what it needs to perform its best.
I guess my question should be is is it possible to have to high of C rating on a lipo pack than your system needs and that it will discharge the pack quicker than if you had a lower C rating. And that is there a balance between enough and too much on the C rating.Land, Sea & Air, A true RC Addict.Comment
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a little off. Think of the c rating more as the valve has the ability to open more. It will only fully open when the motor is trying to pull all the available juice it can. Some motor, and prop combos require more juice at a faster rate. However, if your packs have avery large c rating, and the motor isnt trying to pull those amps, the valve will never fully open. Packs will only discharge faster if the motor is pulling more amps.Comment
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