DF 33" copy mono

[6sHyper]

Just picked this hull/hardware up form a fellow member here on OSE. Has speedmaster hardware and looks like he was running a leopard motor in her. I'm planning on using a CC 1520 1600kv with a T180 esc on 6s, starting with an x442 prop.

fresh out the box:

[6sHyper]

I cant stand yellow so i took it to work and sprayed the top black (i'm an auto painter by trade)

[6sHyper]

I also finally made a couple boat stands, Now i really want to take her on the water this weekend, maybe later today, right now the only thing holding me back is a motor mount. It came with a nice rail mount setup, but doesn't work propperly with the 1520 and the large water jacket. However i took the can off and looks like i could shave a couple mm's off each end of the can so that i can get the front clamp around the very front edge of the motor, what do you think?? should i give this a go??

[6sHyper]

pretty much ready to take her for the maiden, only thing i have to do is finish mounting the ESC, so far its velcro'd but i'm definatley not content with just that, hate using zap straps but really cant see any other way??

I ended up shaving a couple mm's off each end of the cooling jacket so i could use the rail motor mount, seams to be good, no clamp on the rear bracket but i think its gonna be fine just holding the weight at the rear.

[Raydee]

Looks great, good luck on the maiden.

[keithbradley]

Just make sure that front clamp has a good hold on the motor. I used a 1515 jacket on my 1520, it allowed a bit more room. Those 1520 jackets are really a little on the long side but the good thing about the finned motors is there is no grove in the cooling can so you can take a little off like you did.

Velcro actually works quite well to hold down ESCs, but it you want something stronger check into 3M Dual lock. Its like velcro but 10X stronger and provides more of a direct hold, not like velcro that will hold something but still allow it to move some in every direction.

[6sHyper]

thanks keith i'll look in to that dual lock, also would like to find somewher local that sells corrosion x so i can spray my rx, i already waterproofed my esc.

Any recommendations on props?? i have m440,x442,x445,m447, gonna start with the x445 now. I'm really thinking this hull needs a 3 blade though.

[keithbradley]

You could start with the x442 to be safe, then go to the x445...or just start with the x445 if you want. I dont think that will be too much prop by any means.
If you want more speed and the x445 is working well (temps still low, ect.), I would go up in pitch but not diameter. I ran a prather s220 on my Toysport Triton, which is very similar in size, adn it loved it. Any larger diameter than 45mm had a negatrive effect on handling.

You will be happy with the speed of this I bet. My 1520 powered cat ran great on 6s.

FYI- 1520 on 6s with a s220 (44m ~1.55 pitch) had a current draw in the 170's.
1520 on 6s with a s225 (47mm ~1.55 Pitch)had a current draw just over 200A.

[6sHyper]

good to know are those peak current draws or average/continous?? thanks.

[Make-a-Wake]

I vote M445...............

[Raydee]

When I had that boat I ran a X450 on a 1521 1.5D motor with 4s. For smoother running the X447/3 blade was the best prop by far. Since you are running 6s you will most likely have to prop down some but I still say a 3 blade is the ticket on that hull.

[6sHyper]

Well it wasn't the nicest weather for a maiden voyage, but had to make due, plus vhulls are supposed to handle well in the chop compared to my cat and hydro, so what the heck, although it was real windy, you cant see much chop on the water, but it was there and had a very strong current, we flipped a cat and i burnt a cheap china motor out of my Red Evo, and you should have seen the wind and current take it, we just barely could see the rescue boat retrieving it! heres a video of the maiden, that was basically start to finish in the video and right after that temps were 70fESC, 79fmotor wires(can60f) batts 90f. speed 49.7mph x445

Did another run, slightly longer, and 1 of my battery connectors broke off the solder, not positive it was a full de-solder or if it was a joint effort of poor solder and heat. recorded 50.3 that run however and thankfully retrieved the boat in the knick of sight!

http://www.youtube.com/user/6deuced?feature=mhum

The boat was a pleasure to run, this is my first vhull and boy does it handle like its on rails!!!To be able to turn that sharp at that speed is far more intense than a straight stretch at 60+! I am very happy with the first run overall i think speed was good, i'm not gonna stop tweaking untill it breaks 60 though, I think the poor wind and heavy crosswinds definately slowed her down, i feel theres lots of room to prop up, next run i will be able to record max amps, but i do not have a logger to graph, will just have the highest amp rating pulled. I think x447/3 is on the order list!! and 6s2p will more than likely be needed to meet the demands of the 1520 for maximum performance.

[keithbradley]

Looks like a blast in the video! I'm guessing by the temperatures the water was pretty cold? It sounds like its spinning that prop pretty easily too. I would try a s220 next. If thats still not enough maybe a x645. I think the larger prop are going to have an ill effect on handling at the RPM range you're running and pull too much current. If you went down to 4s like Raydee you would want a larger diameter prop but at higher RPM that extra diameter is extra drag and will create a higher amp draw and less speed. I bet it will go 60 with a s225, but I think you will be at the end of your ESC's limits at that point.

[6sHyper]

yeah the water is definatley cold, i have an m447 to try as well, but i was thinking of ordering an x645 and an x447/3, I am a little worried about the amp draw, with my low temps will i be able to push the amps further beyond ratings? or does it not make a difference?? i'd really like to try 6s2p but i cant fit 2 pieces of 10g in one of these traxxas connectors, lol, whats the smallest gauge wire i could use to make a couple parrallel harnesses??

[keithbradley]

You would want to still use larger guage wire, you could technically pull the insulation back further on the wire you solder to the connector, then solder the other wire to that (behind the connector). Personally I would make the switch to bullets, its one of the best things I ever did. The trx connectors can only support so much current themselves.

As far as the cool water thing, you MAY be able to get away with a little more current draw, but you may not. More often the cooler temperatures give a false sense of security.

Personally, for the RPM you're running, I would stay with the x445 until you go 2p. Im a bit of a party killer I know...but I dont lose too many escs either.