Got my 32" "delta force copy" off ebay- couple questions

[kwiktsi]

OK, boat came in today. First of all- very nice for the price, the hardware, hull, etc. are all better than expected for a $299 boat. Couple minor blems here and there, but overall a very nice hull. Not quite as "clean" as my H&M's, but well worth the money. Only change I made was to the battery/esc layout. The boat came with the ESC mounted on the side and a pre mounted battery tray in front of the motor. However, the boat was so nose heavy that the balance point was at least at the 60% mark with the packs up front so I moved the ESC to the battery tray and velcroed the batteries along side the motor to get some weight off the nose. I did this before even running it, so I don't know how it would have ran with them up front, but I think it would just plow through the water like that. It runs and handles very nicely with the packs back like they are now.

Now for my question- it comes with a 2700kv motor and it what appears to be a 45mm metal prop (looks like brass- not sharpened or balanced but wanted to run it with teh stock stuff first- I have since replaced the prop with a sharpened balanced prop but haven't run it yet). They say it is good to 6S, which I couldn't see being possible so I tried it on 3S2P. The wire I used to make my parallel Y harness was kind of cheap, so that melted down fairly quickly. I decided to try just 1 pack and leave the other one to counter balance it. Ran for about 2 minutes, boat actually runs pretty nice on 3S- not the rocket my others are, but a nice running sport boat. Now, when I pulled it in after 2 minutes to do a temp check- the motor and batteries were barely 90- BUT the battery connector was 145+ and the heat shrink on the battery side was melting off.

My question is this- the boat has a chinese deans installed in it, which I heard were garbage- is this what the problem was with the battery connector getting so hot? I can't see it pulling too many amps as the motor, esc and batteries were pretty cool temp-wise.

I'm going to change it out for a real deans anyway, just want to make sure that the connector is actually the problem and it isn't an amp issue. I figure I'm right around 30k rpm's on 3s with the 45mm prop, so I really don't think it is an amp draw issue. Any opinions?

Here are some pics for those interested.

[Raydee]

I am pretty suprised at the build for $299, they did a very clean job and the hardware looks top notch. I would def get rid of the Deans and go with bullets all the way around. When I was running Deans they were always hot and so was the wire.

[kwiktsi]

I am pretty suprised at the build for $299, they did a very clean job and the hardware looks top notch. I would def get rid of the Deans and go with bullets all the way around. When I was running Deans they were always hot and so was the wire.

I don't disagree about the deans vs. bullets, but I have some pretty hot setups running deans with no problems, so I don't think it will be an issue in a 3s setup- but I could be wrong :).

Yeah, the quality of the boat and especially hardware is very nice for $299+$42 shipping! I have some pricey boats here and this is right up there with them quality-wise for a hell of a lot less! I'll have more feedback on it after I change the connectors out and get some more run time on it. The boat certainly seems to handle like it is on rails and performance is decent for 3S also- plus my 3S2P setup will give me 10,800mah- so run time should be pretty long- perfect for running at the lake!

He also would have done the boat without the motor for $299 shipped, so that's not a bad deal either- 125 amp ESC, hardware, etc. for $299!

[kwiktsi]

ok, going to look into going with bullets on this thing. Are there any bullet connectors that are large enough for 2 12gauge wires so I can make a parallel "Y"?

[ED66677]

simple as this : 32" requires a smaller KV motor and then run 6S! they pretty much use the same KV on their 25"!!!

[azjc]

running higher voltage and a lower kv motor will help your electronics run cooler, and I would replace the Deans copy, I have used Deans connectors for years and had no problems. If your wires are getting hot than the wires are too small for your amp draw

[ED66677]

yep it in there http://forums.offshoreelectrics.com/...newpost&t=4159

[kwiktsi]

yep it in there http://forums.offshoreelectrics.com/...newpost&t=4159

Yes, I have read that- you showed it to me last time :). I know the deal with the KV and such and I know it will run lower amps with a lower KV motor and 6S and still be faster- that's not what this boat is for though. I've got my "fast" electrics here which will embarrass this thing. I just wanted something that I can take to the lake and get good run time out of when we take our real boat out.

If it doesn't draw enough amps to melt anything, I'm going to run it as is. I am replacing the connector to the ESC with 6mm bullets, then split that to two deans since it will be drawing nowhere near enough amperage through each deans for it to be an issue. Like I said, I ran it for 2-3 minutes on just a SINGLE pack and the battery and motor weren't even warm yet, so it isn't pulling that many amps. I think it was that cheapie connector. The Y connector melting was my fault- it was cheap 16 gauge wire (not silicone) that I used for a park flyer of mine that draws about 10 amps. I knew I shouldn't have used it in there lol.

Also, according to your link there, my 4S 32" cat with an 8XL shouldn't be running ~52mph and giving me ~4+ minutes run time either :D.

[ED66677]

it's certainly possible to do 52mph with and 8XL under 4S but IMHO not on a 32", 52mph is the best I've seen on a 29"! but I'm not an expert so I only follow the quoted thread!

[kwiktsi]

it's certainly possible to do 52mph with and 8XL under 4S but IMHO not on a 32", 52mph is the best I've seen on a 29"! but I'm not an expert so I only follow the quoted thread!

It will GPS between 47 and 52 (really went 51.8 lol) using an x438-x445- depending on conditions and if I am going for speed or just fun playing :). I have to get another GPS and get some pics up, I lost my last one when I flipped my blackjack 55- it's at the bottom of the lake somewhere lol.

Oops- I'm a moron- the Cat is 26 1/2", 29" with overhang. I don't know why I was thinking it was a 32". It just hit me as I was typing my reply that I thought it was smaller than 32" so I had to go measure it lol. I must have just had that number in my head since I was talking about this new boat. Sorry for the confusion- good call though- you were right on the money for the size/speed :D.

[ED66677]

Oops- I'm a moron- the Cat is 26 1/2", 29" with overhang

and it's a cat so even more aerial than a mono!

[kwiktsi]

and it's a cat so even more aerial than a mono!

I agree. I never expected this boat to be "fast", just fun for what I wanted it for. Lol, I forgot about my avatar- that is a picture of my cat going full throttle from a dead stop :).

[ED66677]

I never expected this boat to be "fast"

but she can! under 6S!

[rob1699]

I was looking for a replacement for my Supervee (the hull has seen better days) and DF29 was top of the shopping list...but seeing this boat has made me think again....I wonder how it would run with an Ammo 2300, CC120 (which I would take out of the SV) on 4s? Not racing, just for fun.

Looks a very nice piece of kit for $299.

Be interested to know how it runs with a decent prop too.

Rob

[kwiktsi]

but she can! under 6S!

I know, I know :). It just isn't what I wanted it for. If/when this motor nukes or if it is just too much of an amp hog and doesn't run right next time out, then I'll go with an 11-12xl on 6S and just let it rip :).