Blackjack 42" | 6s and 8s speed runs, plus a couple crashes, bc that's what this boat does! lol 

Good idea! I've seen others using similar strategies. I'll def give it a try next time. 👍👍

Can't blame you there!!

How's this treating you two months later? I ended up keeping my m41 and not getting the sonicwake. I watched a bunch of videos of people having issues with their new boats and figured since mine's dialled in why go through all that again. Anything you'd change on the BJ42?

@@Cynocehali hey man! I've since carved out a lot of foam in the nose, thus sliding my batteries forward. I have two of the 9000mah Zeees now. I also have a 4818 3 blade prop. It took some adjusting, but I've got it reliably doing 70mph now with minimal cavitation. The biggest thing I can recommend with this boat, as soon as you get it, is correcting the CG. It's too far back, which leads to blow overs. They can still happen even when moving batts forward, but they're few and far between. 👍👍

@@WeissRC Could you please explain what you mean by "CG"? Center gravity? Anyway nice video and great boat!

@@peternaake2032 hello there sir! Thanks for the comment! Yes, by CG I meant center of gravity. 😁 Let me know if you have other questions! 🤙

That GPS probably only went to 99MPH. I don't have that one anymore, unfortunately (it broke). 😂

You could very well be right. Several people are talking about converting their BJ42 to dual drive, so if and when they do it'll be interesting to observe the change in stability! 😎

@@WeissRC I really deep down believe it will cure it. But for the price of doing all that after buying the boat you might as well just get the geico 36 twin

@@jaycevessier7554 wholeheartedly agree my man. I considered the Geico 36, but as you said the price drew me to the 42. You get a lot of bang for your buck. 👍

You're absolutely right. I was out with it yesterday and had my new 1917 prop on... Of course it ran like a dream and I didn't get any video. 🙄 LOL. Going to try to get out and video it today. 👍

@@WeissRC Also, the "X dimension" come into play with all boats. That is the relation of the prop shaft to the bottom of the boat. the bottom of the boat should divide the prop shaft in half. At least on V-bottoms, I would assume the same for a cat. The prop needs a clean flow of water but the closer to the surface, the less drag there is from the shaft. Don't now if you can adjust and play with that but it would also make a huge difference. Lastly, scuffing the bottom creates cavitation which reduces surface friction and increases speed. Waxing the bottom really doesn't do much. Just a few ideas, It is more about the fun than the top speed!

Thank you sir! 🤙🤙

Awesome!! Where did you get them from? Definitely a great idea. 👍👍

Thanks man, appreciate it!! Just kind of documenting the journey. 😝 I'll keep getting her more stable. 🤙

Excellent point, and I have noticed this as well!! Trying to avoid it to achieve higher speeds, but you are absolutely right. 👍👍 Sometimes worth it for additional stability. 😁

Awesome man, love to hear from others that own this boat! 🤙 Definitely a learning curve at this point, and I'm following along with others as far as what they're doing to gain stability. I'm not one to keep secrets, so as soon as I figure anything out I'll have another vid up!! 😎

I would suggest scuffing, then epoxy/jd weld the surface and sand it flat. used to do the same thing on my abs mono hulls, also used to build "pads" on them to really get em running on the edge of disaster lol.

Thanks Ken! 😎👊

I was running Zeee 100C 9000mah 4s packs in this run. 👍👍 This year I have some SMC 150C 11300mah batts to try! 😎

@@WeissRC that’s a serious battery!! Could you send links to those batteries?!

@Ian Laird www.smc-racing.com/index.php?route=product/product&product_id=686 There you go sir! 😁

Could you elaborate a little? What do you mean blueprinting, and what last steps did you take? I might be a little behind! Definitely going to check out your channel again after work. 👍

Wheel weights. I'll get a video tomorrow... The bounce is totally gone with the ABC 1917 prop. 👍

Thank you sir! 😎🤙

For me, the trim tabs really killed the boat's speed and ability to plane. I carved out about 3" of foam from the bow and slid my batteries way forward. This shifted the CG of the boat significantly. The other thing to adjust is your strut angle. Have you tried adjusting your strut all the way down? Some even file the top slot of the strut mount, so they can position the prop even deeper in the water. Let me know man!! Good luck. 😁👍

@@WeissRC Thanks for the tip to bring the lipos forward in the foam. Together with a big curve, my blackjack now drives very well. Greetings from Hamburg, Rudolf

@@Rc-Heizer Anytime sir, glad I could help!! 👍👍

Absolutely man! I've since got mine running A LOT better after this video and hit 70mph. See my response to your other comment... It's definitely about weight balance and strut angle! 👍👍

@Warlock485 nice man! Yeah I've got my batts all the way forward now, and even carved out some of the foam. It runs 70mph and only blows over if I catch a bad wave or get unlucky with the wind. 😂

Good question!! I will figure it out and let you know. 👍👍

Great question!! I've never GPS'd the Spartan, although I plan to soon!! I was going to the last time I was out, and then it took a nasty crash ripping the entire center motor/ESC assembly out... I fixed it and she should be good now. 👌👍

I get your frustration man, I really do!! It was a game changer for me when I carved out some of the foam so I could slide the batteries farther forward, moving the CG of the boat forward. I also run my prop strut as low as possible now to minimize/prevent flipping. Boat actually runs pretty well now, but you definitely have to drive it (no just laying full throttle for days at a time)! 🤣

@@WeissRC . I'll give it a try taking some foam out. I have the batteries all the way forward now but you can barley get hands in there to get 2 out of 3 straps on. I used some hardcase 4s zee lipos 6200mah 80c. I want to get my 4s CNHL 9500mah in there they are really long batteries might help weight balance

Good question! At higher speeds I would have to say hands down the 42 does, given the wider stance and catamaran design. However, at slower speeds I'd say the Spartan has the ability to carve a tighter turn. 👍 The V-hull is inherently less stable, given it's more narrow footprint and smaller contact surface with the water.

@@WeissRC Do you have any Chime problems with the 42? Looking at getting one and possibly a rescue boat, still not sure what would make a good rescue boat. Thanks for responding back to me. 👍🏻

@@Kolsch221 oh you're very welcome. No, the catamarans typically have no issues with chine walk. It would be a good recovery boat given its size!

@@WeissRC I have a spartan. I use my kayak for the recovery boat. I need find a good rc recovery boat.

@@Kolsch221 yes, it certainly makes it much easier. I use a Proboat Jet Jam for recovery... It's small, but believe it or not retrieves even the BJ42 when it flips! It has a cone you can attach to the front. 👍

Listen to you, Mr "I got you into boating"! 🤣😜 Hell yeah man... I want to try some of those props you have! The Spartan is also doing some weird stuff lately that I need to iron out. 😭 LOL

@@WeissRC she looking much better at the end there. Matches up well with the Pursuit I think they both in the 50-55mph range

@@naveda08 definitely man! Trying to find that balance between weight in the nose and strut angle. 👍

@@WeissRC I think the trick will be the prop. Something that lifts the back(transom) like a rigger style prop. The Octura X line of props is technically the opposite of what you’d want.

@@naveda08 Yeah, the Octura had worked well in the Spartan so I figured I'd give it a shot... I wasn't very scientific about it. The 1817 is supposed to do fairly well, too. 👍👍

True, but I'd like to get her tuned to go wide open with minimal porpoising. 🤣😝

@@WeissRC I've been following the black jack and it appears they are unstable. I run a m41 wide open with the batteries full forward. Probably need some weight up front

@@FaithinThoth agreed. I have quite a bit of weight in the nose. Currently using wheel weights. Need to experiment a little more with them! lol

I run the batteries full forward too. I have some bigger heavier batteries I've run in the front and it can't get on top of the water. Need more Ballance.

Hahahahaha there you go! I actually got the boat running much faster and more stable with the ABC 1917 prop. Sadly didn't get any video this past weekend!! Definitely will soon. 👍👍

Indeed sir... And I knew it would be. He just got it though, so I wanted him to enjoy it. 😝

🤣🤣🤣 why's that? No judgment, just curious... I realize it's not for everyone.