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

[Leadfingers]

Only had mine a couple of weeks and so far, I have drilled out the water inlets on the rudder, added larger waterlines and a splitter. raised the strut a tad, upgraded to a OAS flex shaft and put some 6's 50c in. I'm still running the stock prop, but have a Prather 215 and 220 I plan to try on her later today. I am not sure how fast it's going. but scary fast. Can anyone suggest a GPS?....as always, open for your suggestions.

Lead

[shua]

My stock BJv3 was doing 47 on 6s. Other than the OSE upgraded flex it is box stock. On a pair of 40c 5000mAh.


The Garmin forerunner 101 is a great little device for clocking speed.

[Airedout29]

very nice .... i reinforced my hull but now feel its too heavy hope i didnt ruin it.. boat still airs out very nice but you can tell its solid going by... ran 44 mph on 6s quick pass stock 1800 motor and esc.... im installing my leopard motor and my seaking 180 esc shortly


i had to reinforce so much due to my crack when i blew over.... the hull split on the sponson but cracked a good 5 inches down the side along the seam..
022.jpg020.jpg019.jpg020.jpg


added about 1.5 lbs to the hull but now its ready for more jam.... seaking 180 esc and a 1600 kv for 6s? whats a solid 6s setup?

[vette 00]

Leadfingers is this the V3 BJ 29? Just curious what you thought of the Prather 215 and 220?

[Leadfingers]

Yes, V3 BJ 29. I have not had a chance to try them yet. I will let you know how they do on the BJ, been running them on a Spartan and it seemed to like the 215 a little better. Ordered a GPS today, then I can tell for sure about the speed. I really like this little cat. it's a fun boat, just a little tight to work on, compared to the Spartan.

[vette 00]

Thanks, my BlackJack showed up 2 weeks ago but not yet christened Before I take her to get wet I am waiting for a dual water pickup rudder and have been curious about props. Good luck with everything, keep me/us posted. Thanks.

[shua]

Thanks, my BlackJack showed up 2 weeks ago but not yet christened Before I take her to get wet I am waiting for a dual water pickup rudder and have been curious about props. Good luck with everything, keep me/us posted. Thanks.

What dual pickup rudder are you planning to use? I have been thinking about doing the same for mine.

[Leadfingers]

vette, where did you find a duel water pickup rudder? Does it fit the stock rudder mount or do you have to change that also?

[vette 00]

rudder.jpg This is what I plan on trying the rudder pictured on this post, it's about 5mm longer than the stock rudder (similar to OSE's "Speedmaster Dual Pickup Tapered Rudder Assembly"). I hate to mess with the original because the black rudder and mounts look nice. But I am going to try this out, I won't be using the mount itself; only the rudder and the bracket/mounting piece for the servo arm. It appears that it will slide into the original mount assuming the pin diameter is the same. Not sure, but I wanted to try this first before adding any additional pickup tubes or inlets.

[Leadfingers]

Let us know how it goes vette. I was going to try the same thing but, when I tried to remove the set screw on the rudder rod it stripped out, not sure if Proboat put Loctite on it or not, but it would not come out. Maybe some other BJ owners will chime in if they have had similar problems........GOOD LUCK !

[Leadfingers]

I tried the prather 215 prop this weekend, running 6's 50c 11.1 after a couple of runs check the temps, the esc and motor leads were hot about 165F.I put back on the stock prop and put the strut back to the factory settings, but still getting hot temps. I have been following a couple of threads and it seems that lots of other folks are having the same issues with heat, trying to run 6's.

The new BJ 29 was advertised as and here is quote, "Water-cooled Dynamite water cooled marine 120 Amp ESC (6S compatible) and 2000Kv brushless motor", so I am a little confused and disappointed that you need to upgrade to 180 esc and better connectors, because the stock 120 esc and 2000 motor are not compatible.
If that is the case, is Proboat guilty of false advertising or am I missing something here? I have over $250 invested in two new lipos and can't run them with out taking a risk of burning everything up.

[shua]

I have been running mine on 6s with a pair of 40c 5000 3s cheap chinese packs and have been fine. Other than an OSE upgraded flex, it is box stock.

I limit my run time, when on 6s, to 3-4 hard minutes. Dont want to overdischarge the batteries.

I read somewhere that some of the first run V3s had the ESC timing set to 15deg. and later Proboat dropped it down to 7.5deg.
You may need to look at that. If yours is set with the higher timing... It could be the primary cause of heat issues

[Leadfingers]

Thanks for the input shua, I will try changing the timing to 7.5 deg and see if that helps.

[waterproof]

Thanks for the input shua, I will try changing the timing to 7.5 deg and see if that helps.

Have you test it yet with 7.5 timing?
I got lower temp but not on the connectors to the motor.
I maby think 22.2v always going to give hot connectors on the motor?
Anyway im not happy with 165-180F so i have bought a new 2s lipo to make 5s.
Same type battery as the 3s, mh and c. Im going to try it with a stock sharpen and balanced prop that i have order to hope i get 45-50mph on 5s if i adjust it right.
V2 also have burn hot motor connectors, i dont think its going to be a lot cooler when you use high voltage. Question is if it have anything to say.
Connectors are very close to the front of the hull.. It rest in the roof of the hull in front.

[Rafael_Lopez]

I tried the prather 215 prop this weekend, running 6's 50c 11.1 after a couple of runs check the temps, the esc and motor leads were hot about 165F.I put back on the stock prop and put the strut back to the factory settings, but still getting hot temps. I have been following a couple of threads and it seems that lots of other folks are having the same issues with heat, trying to run 6's.

The new BJ 29 was advertised as and here is quote, "Water-cooled Dynamite water cooled marine 120 Amp ESC (6S compatible) and 2000Kv brushless motor", so I am a little confused and disappointed that you need to upgrade to 180 esc and better connectors, because the stock 120 esc and 2000 motor are not compatible.
If that is the case, is Proboat guilty of false advertising or am I missing something here? I have over $250 invested in two new lipos and can't run them with out taking a risk of burning everything up.

Hi Leadfingers,

Can you please elaborate on why you feel the 120A ESC and the 2000kv motor are incompatible? Please tell me more about why you are unable to run your boat as advertised.

The connectors getting hot is not something that we, Pro Boat, see as an issue with this boat. Can you please tell me the following about your experience?
1-Is the heat shrink over the connectors deforming, or getting so hot that it splits?
2-Is the heat from the connectors damaging the finish of the hull, where they are tucked under?
3-Is the solder melting and are the connectors coming loose off the wire?
4-Is the ESC going in to thermal shutdown?

I would love to look in to this further if you have some hard data you can share with us that supports the fact that we are making a false claim for this product; the compatibility of the electronics. We don't see someone's opinion of " I don't feel they should be this hot" as a valid reason to re engineer this product.

Keep in mind that brushless RC car motors now days get over 200*,and this is normal, at least for some of our products it is and I can guarantee you that we are not replacing electronics because of this.

I can tell you that amperage wise, the ESC is not even functioning at 80% of it's maximum rated amperage capacity, with high timing.