merc1500

im wondering which boats that run regular 7.2-8.4 would meet my standards i need something that runs 15-20mph atleast runs more than 15 mins on one pack fairly water tight would run well in rough water im using it to chase the really boat im thinking the aquacraft hammer the towerhobbies turbo vee 3 the apahce 24 from pro boat the shockwave 24 i dont want to spend a lot it more of a beater boat i plan to take good care of it just its a rougher water rig thinking 1/2 to 1 ft waves at most i just dont want to break my super vee 27

merc1500

or is this just not possible in a stock electric boat

garfunkel

I'm a novice here so I'm not sure if you'll wanna take my word for it, but I've been reading around these forums quite a bit and I've found that many people have made boats out of nothing, and many people have made boats go fast from stock cheapo-boats. I'd say that you have a wide playing field for what you're asking - and I've heard nothing but good things about the Aquacraft Hammer (in it's price range of course). If' you're willing to spend the money I think the Hammer seems a very good choice and It's got a offshore hull I believe (although it seems very similar to the Sv27 so it might get a little too much air -but that should be no problem if you adjust the tabs to run it wetter). I'm sure it wouldn't zip past you, but in rough water like that I think it's smarter to play it safe and a little extra wet than too dry and the water conditions will make it fun enough at those speeds as it is.

Hope my ideas on the subject might've helped a little -Good luck!

SV27dayton

Merc,
When you say 'chase', are you saying this is a recovery boat? That said running 15-20 in .5-1.0 foot swells is a rough ride in a 14 foot fishing boat with a 10 hp outboard. My point is that's pretty rough water for small scale model boating (under 40"). I could get my SV across the pond in that chop but I'd likly never plane it off. Wouldn't be any fun.

merc1500

i over stated the waves size smaller than 1/2 ft im thinking the apache 24 is it any good

SV27dayton

I havent heard alot good about it here. But it may suit your needs. Again, what's it for? Fun or recovery? Have you seen the videos on the proboat website probably dong 15mph.

merc1500

fun something to play around with it chase the big boat around i want something i can jump wakes with

headhunter23

Get the surfer dude. Self righting, speed is similar to hammer and certainly within your speed range, add a big lipo and you'll easily get 15-20min in stock form. Pretty much designed for waves, ocean etc. Check out youtube videos.
http://cgi.ebay.com/New-Remote-Contr...QQcmdZViewItem

Would suggest lipo low voltage warning system.
https://www.unitedhobbies.com/UNITED...idProduct=2160

Ivan.

merc1500

i think the apache fit my price range and would suite the propose with stock batteries i dont want to go lipo i heard if they get wet they burn asides if i want to haul ***** i cant use my supervee 27

merc1500

that why im looking in the hundred and 150 dollar range so if something expense breaks oh well

alloutcustom

lipos are water proof. So dont cut them open under water

headhunter23

To be honest nimh is on it's way out. I had bought nimh and I have completely switched to lipos, I've got 10 packs of lipo's and have dunked them all. They are sealed very well but of course there are different brands that perhaps aren't up to standards. Check out turborix on ebay or lipos at UH, I've been using them for a year and a half and have not burned any out by pulling too many amps. Also they are becoming very competitive in terms of pricing, can pull more amps than nimhs and can weigh almost half as much as nimh. In fact I think it's the resistance to change that has prevented a lot of people from making the switch to a better system.

Have grabbed two of these chargers and they work awsome, quick and can balance and do two 2s lipo's at a time.
https://www.unitedhobbies.com/UNITED...idProduct=2055

Take a look at zippy lipo's, if you get one pack 4400mah or 5000mah, you will only need 15c size as they would provide over 66-75 amps constant draw and 88-100amp burst . This is more than enough for sv27 requirements as sv only needs 40-45 amps, with a burst of a little higher.

Ivan.

merc1500

yeah but how would that do in the apache 24 from proboat as fars as proformance what kinda of run times could i get from one lipo pack cruising at 15-20 mph i have no idea about the apache was hoping someone had some info on it

headhunter23

I have the aquacraft hammer, the motor in it is a 550 as well and is same length, so I would think they are almost exactly comparable. On it I would get 10-12min on a 7.4v 2000mah nimh pack. With a lipo 7.4v 5000mah pack which fits in the boat nicely I could get 30-35min on it. I now run 14.8v 5000mah packs in the hammer with an upgraded motor. So you could literly run two 7.4v 5000mah packs with a little bit of weight penalty.

pack I'm running now weighs 560grams or 35oz(14.8v)
7.4v version weighs 350g or 22oz
my 7.4v 5000mah nimh packs weigh 590g with glue, wires and shrinkwrap

also just to let you know there is surprisingly a difference in speed between the lipo and nimh packs. It's weird but the lipos are faster.

And the hammers stock speed gps'd at 23-25km/hr so the apache should be in the same ball park.


Ivan.

merc1500

cool so whats the chepest safest lipo set up

headhunter23

Depends on what you want. Personally I like the 5000mah packs, get two and your good to go for sv27 to run in series. I would stick with 2 5000mah packs for now, run em and if you wanted more runs or running time, grab another 2. But that's me, its really whatever you prefer.

If you grab smaller packs you would need 20c-30c depending on the size of the pack but with larger you can go 15c. Here's how the equation works for determining draw.

If one batt is 5000mah and has 15c draw(constant) then it's 5(5000 is 5 amps)X15=75amps constant draw.
If you get smaller, say 2200 at 20c, then equation would be 2.2X20=44amps which would be borderline for sv27 so you would look for 25c or 30c
so one last one just so you get the hang of it 2200mah batt with 30c equals 2.2X30=66amps draw

Generally they also tell you burst draw too, but make sure your constant draw fits the bill.

I've heard the zippys at uh are pretty good, you could ask for others to post other brands.

Ivan.

merc1500

well i want water proof and 30 mins run time speed dont mean much in this boat i got the shockwave 26 instead guy at hobby didnt have apache and said the shockwave is faster and runs longer any true to that

headhunter23

unless its slower or smaller it would not run longer. If it runs faster and is bigger then how can it use less energy?

Ivan.

merc1500

he was saying dee vees have less boat in the water and in turn less resistance i knew he was lying but didnt want to wait take her out today put 25 miles of run on her good boat 1/2 ft chop bow on like it was nothing i got 20 mins at a good cruise its cool easier to use than the enforcer as far as salt water operation

headhunter23

Cool, post some vids some time... love videos.

Ivan.

merc1500

dont have a video camera whats the difference between ni cd and ni mh

alloutcustom

Well, Nicd has a memory and Nimh doesnt. They have the same voltage(1.2 per cell) and you can use them in the same applications. Nimh Last longer if you take care of them but Nicd can last long to. You should discharge after every run with good nicds to keep them going strong. Nimh has a longer runtime to. I think 2400 sanyos(in my opinion) can perform better than the new high capacity nimhs( not in runtime tho).