Proboat release new Blackjack 42" catamaran

[alvinm]

Yeah I remove the shaft with sleeve and all and grease it. I also noticed the play within the strut without the adhesive but so far it's been okay. I'm more concerned with all the hopping at high speeds.

[njandy]

The ESC and motor was about 120F after that run. We used 5000mah of the 9000 available. The lipo packs were at less than 120F.
Both of the boats are set-up the same with two exceptions. The black one is using LMT 6mm connectors, and it has a temporary air dam in the tunnel. The white one is using 10mm connectors from OSE.
Otherwise, the changes made include:
*Thinned and sharpened Prather S225 prop
*Twin cooling water tubes and aluminum outlets added
*Carbon fiber plates glassed in for the lipos to rest on with Velcro
*Struts adjusted slightly negative
*Greasing the flexshaft and oiling the motor bearing every two or three runs
*Zeee 4S/9000mah lipo packs, all the way forward to the foam
*G10 ride pads bonded to the last two sponson ride surfaces

have you had continued success with the zeee packs? i bought two 4s/5200mah about a month ago, one swelled up pretty good and the second swelled a little. i ran with them twice. zeee was kind enough to send me two new ones for free but i?m nervous about them. i?m loyal to no brand but i have two sets of gens ace i got on sale that run fine in the boat with no issues.

[jhurlbert]

I have a bunch of zeee batteries and no problems. I have the 9000mah zeee 100c for my bj42 and have run the boat about 10 times with no problems. But i am not doing big long high speed runs like in that youtube video

[jhurlbert]

I think the boat calls for 100c and i dont think the 5200s are 100c

[fweasel]

I think the boat calls for 100c and i dont think the 5200s are 100c

Its a made up number for the most part. Use a quality pack with tested C rates above 50C

[njandy]

maybe i just got a oddball set. sorry to hijack the thread. back to our regularly scheduled boating

[ACKopter]

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.

[ACKopter]

Does anyone have an alternate source for the strut bushing and flex shaft? I would like to have a spare as a just in case and Horizon has the flex shaft backordered and you can only get the strut bushing if you purchase it with the stuffing tube and liner which drives the cost up excessively. wont say I'll never need another tube in the future but just want the bushing for now.

[njandy]

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.

the first thing i did was raise the low voltage cut off to the max the esc would allow. programming could have been a little better illustrated for sure.

[jevmax]

I remove the bushing and the flex cable together. No need to remove the strut every lubrication.

[jevmax]

Yes Ray, that is just what the boat needs. Maybe Stumpfab or someone will come out with that upgrade part.

[ACKopter]

Does anyone have an alternate source for the strut bushing and flex shaft? I would like to have a spare as a just in case and Horizon has the flex shaft backordered and you can only get the strut bushing if you purchase it with the stuffing tube and liner which drives the cost up excessively. wont say I'll never need another tube in the future but just want the bushing for now.

Anyone?????

[jhurlbert]

So right now i am running zeee 4s 9000mah batteries all the way forward with 280grams in front of the esc strut down and with fresh batteries i still have some bounce and blow over issues. Going to throw in another 140 grams and see how she goes

[R_Kephart]

So right now i am running zeee 4s 9000mah batteries all the way forward with 280grams in front of the esc strut down and with fresh batteries i still have some bounce and blow over issues. Going to throw in another 140 grams and see how she goes

Do not run the strut all the way down. Run the strut so the top sticks up from the mount about 5mm. The try again.

[UpliFT-RC]

I am installing Bill Oxidean Marine Trim Tabs to keep the front end down

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!