Proboat release new Blackjack 42" catamaran

[jevmax]

I have had no problems with the Zeee packs, but that means little. You find a very large range of product quality coming from Asian suppliers. Some guys will say they are great and last forever, while his buddy has a bad experience. Lipo pack quality is inconsistent, regardless of the brand.

[Peter A]

By installing these trim tabs you will be able to keep the front of the boat down..
I seen guys on Youtube hit 70mph with this boat with Trim Tabs...
One down and one to go!

They look just like Pursuit trimtabs!

[koen]

just TFL trimtabs just a few $$ more for the name

[UpliFT-RC]

Here are the pair that I am getting ready to test out this weekend at the local lake.

https://oxideanmarine.com/products/trim-tabs-blaxkjack-42?_pos=1&_sid=ac917a6de&_ss=r

[Yvon]

Hello all!

I'm new here, new in boating as well.
Veteran in Cars mainly, a bit of drone and heli and planes too.

From France, Britanny.

Just bought a BJ42, had it run in the Mediterranean sea last week, pretty good.

Then for my 2nd run, It ran for 10 meters then nothing....

Aster investigation: one battery got some water from previous run the day before, and 2 cells not really in good shape and one solder completely ruined... by salted water ...

Of course, everything is waterproof except the batteries :-(

My batteries:

https://rc-performance.com/produit/lipo-ec5-6200/

Questions:

Can I use some hot glue to seal the batteries (wire holes)? Or do you have other options, like putting them in a sealed plastic bag?


Now, with regards to the cooling system, on some YouTube videos, I can clearly see the water jet going out from the second tube in the tail. On my boat nothing, looks like the water does not come in the cooling path.
I checked the entries and nothing is blocked, may be I am not going fast enough (was doing 75% throttle)...


Also, when I first started the boat, plugged the batteries and then pressed the on/off button to power the boat on, or off, no issues.

After my first run, the button was inoperative, nothing... had to unplug the batteries to power it off.
The next day, when I plugged the batteries back, the power went on immediately without pressing the button. and will not power off when pressing it as well.
Have you ever seen that?
A day later it was ok, looks like the power button is not waterproof as well?


Thanks!!!

Yvon

[1coopgt]

One thing to consider on the batteries, if you run the batts down till the ESC hits the low voltage cut-off it is exceptionally hard on the batteries as the default setting is too low. I found this out on the very first run, don't think it caused too much problems but the batts were pulled down too far for sure and that can most certainly cause puffing.

You do know you can set the low voltage cutoff so that you don't damage the batteries when it reaches LVC .

[Sparky814_hawk]

Has anyone thought about aero add-ons to keep the nose down on this boat? I am thinking about 3d printing some front aero add-ons to see if it helps.

I have literally run this boat wide open with only the prop in the water. Fun but when it blows over it sucks

[ACKopter]

You do know you can set the low voltage cutoff so that you don't damage the batteries when it reaches LVC .

Yes, thank you. I found out awhile back and have since reprogrammed my esc.

[1coopgt]

Sorry AC I didn't mean that to sound quite so harsh. Glad you got it all set .

[ACKopter]

Sorry AC I didn't mean that to sound quite so harsh. Glad you got it all set .

No worries, I didnt take it that way at all.

It's been quite awhile since I've had a run with the BlackJack. Lots and lots of rain in my area for an extended period of time has elevated water levels both in the river and local lake which has all but eliminated bank access so it may be a pretty good while before water levels return to normal and get out on the water again. Rivers are still above flood stage for several weeks now

[alvinm]

No need. A set of trim tabs keeps the front end down. Speeds of 70+ are a breeze.

[1coopgt]

By installing these trim tabs you will be able to keep the front of the boat down..
I seen guys on Youtube hit 70mph with this boat with Trim Tabs...
One down and one to go!

Hi Uplift do you have any more pictures (Close up) . Did you mount them flush to the bottom of the hull or up a little bit ?

[naveda_08]

Can you turn at speed with the trim tabs? I thought trims tabs were not very good for catamarans

[UpliFT-RC]

Took off my Trim Tabs

I took off my trim tabs since its was dragging big time no matter what angle I had them set at so I removed the Oxidean Marine Trim Tabs.
This boat was not made for speed runs anyhow it was made for ripping laps anywhere from 45-55mph.....
I am sure you can make them work but for my speed runs I went out and bought the new v2 Miss Geico Twin Zelos..��


This a run w/ out my trim tabs and a brand new Dashboata prop...

https://www.youtube.com/watch?v=q-ATYkj6lc0&t=120s

[jevmax]

Looking good!!!

I took off my trim tabs since its was dragging big time no matter what angle I had them set at so I removed the Oxidean Marine Trim Tabs.
This boat was not made for speed runs anyhow it was made for ripping laps anywhere from 45-55mph.....
I am sure you can make them work but for my speed runs I went out and bought the new v2 Miss Geico Twin Zelos..��


This a run w/ out my trim tabs and a brand new Dashboata prop...
https://www.youtube.com/watch?v=q-ATYkj6lc0&t=120s