What have you done to your " BLACKJACK 29" lately?

[TheShaughnessy]

What is the logic behind thinking a 180 amp esc will make the connectors on the motor be cooler than a 120 amp esc?

[waterproof]

Todays run i hit 79km/49mph on stock setup with s/b stock prop and the strut is still in stock posission.
Have now run it about 15 times on 6s and i have good temps on esc and motor, the motor connections have sometimes 60c and other times 80c, it realy works just fine on 6s if you just have 7.5 timing and stock posission on the strut, if you raise it you will get hot electronics.

Any other in here with stock blackjack/ miss geico with a gps that could tell the setup and speed? :-)

Now i want more speed but i also understand this is around maximum speed in this size of hull.
I maby want to try a x440 octura s/b how will this be vs the stock? Is the stock prop also 1.4 pitch?
It seems like my 35c goes a bit faster the first minute on a full charged battery than rest of the runtime..

[captain kirk]

in my BJ v2 I installed an os 150a esc and a 3674 2200kv motor and an x642 s&b prop on 4s 5000mah 50c hoping for around 50mph

[Pedro Ramos]

bj29.jpg
i run 440/3 with a leo 3674 1900kv with a turnigy 180a with timing set at 3.75, OSE strut and .187 OSE shaft, on 6s runs low 60's all day long with temps no more that 130 degrees. I'm very happy with it!!!

[dtacmed]

https://www.youtube.com/watch?v=qZoCHt49sIg Leopard 4082 2000 kv, Seaking 180 esc timing at 3.75. X642 S&B Prop on 4 s

[Erroneous]

IMG_0221.jpg Allmost done. Turnigy180, Poseidon1515 2200kv, Revo 5000mah hv gopacks, ABC 1615-17 prop. Still need to blueprint the sponsons but want to run it first.

[Ken Love]

I bought my BJ29 back in November 2016 and have never had any issues with heat on 6S. The only problem was after a couple of months wanted more speed so I bought a Zelos 36 Twin that is an absolute blast. Since I have boat to play with I decided to upgrade the power a bit. I've only made the motor mount and the speed control/servo/radio mount so far out of 3mm and 2mm CF plate. I have a laundry list of other upgrades to go. I've only been into RC boats for a about 6 months and advice would be helpful. I do plan on cooling system mods and hull blueprinting/refinishing also.

Here are a few pics

IMG_1065.jpg
IMG_1066.jpg
IMG_1057.jpg

[Leadfingers]

Great looking work, keep us posted .

[fweasel]

Looks great. That Voracity motor is going to scream, but I wonder if you're going to need to run your batteries further back than the trays allow to compensate for the heavier motor.

[Ken Love]

I played with the CG when I was laying out the components, putting the esc behind the motor instead of in front kept the CG real close to stock with the batteries in the middle I hope to have enough adjustment when I get done. I also slotted the motor mount to allow some adjustment there also. Here are the planed upgrades:

1. Finish coat the inside of the hull with a coat of West Systems 105 dyed black.
2. Replace factory flotation in the front of the hull with a 2 part pour in expanding foam. (this along with the epoxy should make the hull stronger, i hope)
3. 187 flex cable
4. Rudder with dual water outlets and an overhaul of the cooling system.
5. Blueprint and refinish hull.
6. Props - I have a CNC 1.6 de-tongued in 42.44.46 and 48 mm's to start.
7. Throw in a Futaba receiver.

Again any suggestions are welcome

[TheShaughnessy]

an epoxy coating by it self will add more weight than extra strength. If you do any damage to the front half of the hull it will be nearly impossible to make a repair with the 2 part foam in there.

[Ken Love]

an epoxy coating by it self will add more weight than extra strength. If you do any damage to the front half of the hull it will be nearly impossible to make a repair with the 2 part foam in there.

Good Point - If this anything like my other R/C habits there will probably be damage.

[Mxkid261]

Looking good. Interested to see it run, should rip with that combo. I like pool noodles instead of the foam. If they ever need to come out its easier than 2 part foam lol

[Ken Love]

IMG_1262.jpg
Finally got a chance to do the CF inlay on the hull and mock up the internals. After hull blueprint and paint and I hope to get it on the water before it gets to cold, work seems to find a way of getting in the way of projects like this.