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Thread: Flow 3.0 - Is it good?
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08-07-2020, 04:51 PM #11Senior Member
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08-07-2020, 09:24 PM #12Junior Member
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Thank you all for the answers.
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08-07-2020, 09:39 PM #132019 Makai
Raptor 450 w/ 1.76 Trans
WakeMakers 1350s in the rear & 1K in Lead
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08-08-2020, 08:26 AM #14
You could make it mechanical with a tie rod connected back up to the transom so as the plate goes down it pulls on a lever connected to the hinged portion of the plate to tip it down. Only down side doing it that way is that is would deploy in direct proportion to the amount of tab you use.
Sent from my iPad using Tapatalk2017 Moomba Craz
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08-08-2020, 09:27 AM #15
Hmmm, don't mean to drag this out or be argumentative but about your Yaw comment. It's an interesting effect I had not considered.
First, are you and engineer, hydraulics, boat designer? I truly am not being facetious, I honestly would like to know. I'm not, my deductions are based on loose research around forums and pure deductive reasoning. I'm not a hardheaded person and am always willing to learn.
But, you mention Yaw being provided by the 3.0 tab design cleaning the wave lip. I'm just trying to understand how that occurs. Again, likely b/c I'm an engineering layman.
This is the explanation I come up with. When surfing, what I have seen is that when the boat turns toward the side contralateral to the surf wave, even with mild turns, the wave lengthens and cleans up nicely. That would be equivalent to Yaw to the right if you're surfing regular. If the boat turns toward the surf side the wave shortens and gets all rough, so much that I have to surf closer to platform in order to not loose wave. That's equivalent to Yaw to left. I'm sure we're all familiar with this.
So, if the 3.0 tab increases Yaw, it would be to the side ipsilateral to the tab, it would in effect cause the bow to point slightly to the right when surfing regular, so right side Yaw, similar to having the boat turn right. Is this what you are referring to? Did I get this right?
I would think any tab deployed will cause some Yaw to the ipsilateral side. We see that when we're driving straight and we have to keep the boat from turning to the side of the deployed tab. That lip on the 3.0 makes that much difference, huh?. Ok, if that is the case, I'll buy it. No arguments here, but then you still have the question of what gets you more bang for buck, extra ballast or the extra Yaw you get from the 3.0's.
Listen man, If you have bottomless pockets, get it all. Don't leave anything behind, but, most frequently we must make decisions based on budgets and someone's gonna get cut.2020 Supra SL 400
2015 Moomba Mojo(Sold)
2018 Yamaha Waverunner(Just to fool around)
2018 F150 Lariat
sport edition, 3.5lt ecoboost
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08-08-2020, 12:34 PM #16
Good points. Would be nice to have a clean wave face without a little bit of listing that I currently use. Throw in hydraulic steering and a stern thruster and I would never feel the need to upgrade.
PS. Ipsilateral, contralateral.... I'll believe you are not in engineering....but going to go with healthcare professional, haha2018 Max - Ultrablue flake/Gray - 4400 lbs water (720s midship), 750 lbs lead somewhere
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08-08-2020, 12:39 PM #17Senior Member
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08-08-2020, 12:50 PM #18Senior Member
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What you state is correct. It creates adverse yaw, which in a simple way directs the rooster tail (which extends in the opposite direction of the hull direction through they water) away from the desired surf wave face. The turbulence of the rooster tail is what dirties the wave face.
Yes there is drag created by the deployed plate that creates yaw, it just happens to not be quite enough in a lot of cases. The yaw plate gives it the extra bit of force needed.
The sole purpose is yaw generation exactly as you state, and that’s why it works. The supra Swell plates are mounted at an angle that generates this yaw inherently. Not sure why Supra and Moomba address this design need differently, but the net effect is the same.
I am not an engineer, just a very studious user with deep conversations with the engineering department at SC under my belt. Lots of chats. Awesome people.
Ballast is always priority number one. If you’re pinching pennies. I am not sure what the Flow3 option costs—as I am getting a Max on which it’s not offered. But for 2021, the Max has the brain to run it (7” screen required). Parts at retail to add it are in the $2600 range by loose calculations.
If I was optioning any of the other models that are 22’ and longer, Flow 3.0 is a no brainer for me. As you can imagine, more yaw force is needed for the longer hulls.
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08-08-2020, 12:52 PM #19Senior Member
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08-08-2020, 02:33 PM #20
Damn, was really hoping 2021 Max would have Flow 3.0 as a standard option. Wondering why they'd tease you with such high potential in displacement (vs. Craz/Mojo/Kaiyen) but then limit some aspect of the surfing? I've attached a spec sheet I made for the 2020 models, where I compare all the publicized spec info. (I didn't include fuel weight but it only varies by about 200lbs from Helix to SupraSE.)
Model Ballast (std) Ballast (opt) Length Pass. Weight Boat Weight Boat + Pass. + Ballast Helix 2400 2800 20'5" 2000 4000 8800 Max 3200 4000 22'6" 2800 4500 11300 Craz 3000 22' 2400 4200 9600 Mojo 3000 23' 2500 4400 9900 Kaiyen 3700 21'5" 2100 4500 10300 Makai 4000 24'5" 2500 5200 11700 SupraSR 3300 20'11" 2200 4950 10450 SupraSA 3500 22'5" 2400 5800 11700 SupraSL 3500 23'5" 2500 5600 11600 SupraSE 4100 24'5" 2800 6150 13050 2021 Mojo, 6.2L Raptor 400/1.76, Acme 3407 15.5x13, G6, Flow3, +6500 lbs ballast
2005 Mobius LSV (sold)
Windermere Lake, B.C., 2800' Elevation
2021 Mojo Mods