Instantly reversing pumps, gimbaling pumps. Think of the new tricks, front flips, tail slides forever...
The future of freestyle, freeride
- Thread starter Josh Watson
- Start date
Quinc
Buy a Superjet
- Location
- California
Wont even need a rider! Just code the routine the night before and let it rip.
- Location
- Coeur D' Alene, ID
I mean, thats freestyle now right? Just spend 40k, hold on and it does the rest.
- Location
- Florida
wydopen
onthepipe
- Location
- Goleta the Goodland
The future is here?
kymera-body-board.myshopify.com
PERSONAL WATERCRAFT (deposit)
**This is a deposit only and fully refundable prior to shipping** **The Personal Watercraft is estimated to ship in 2020 and only the first 50 orders will receive the introductory price of $5,995.00. The regular price will be $6,495.00** The Personal Watercraft is $5,995.00 and your $500 deposit...
kymera-body-board.myshopify.com
- Location
- Glenmoore pa
Electric jet ski has always been my dream since I got into this. There’s so many advantages and I’d spend the money to R&D one in my own ski but I don’t have a good grasp on what size motors it’s going to take to match the abilities of a 1200. Anybody an expert there? Also, you can pretty much just waterproof the motor compartment. You don’t need air. I believe water cooled electric motors/controllers are common place so we can use a pump take off for cooling.
would something like this do the job? https://www.electricmotorsport.com/...6v-550a-liquid-cooled-motor-drive-system.html
This has like 116lb/ft peak and 26 continuous or something. I think peak torque is what would matter for instant hit needed for freestyle but would a 116lb/ft motor be able to pull like a 1200cc 2 stroke? I have no clue.
would something like this do the job? https://www.electricmotorsport.com/...6v-550a-liquid-cooled-motor-drive-system.html
This has like 116lb/ft peak and 26 continuous or something. I think peak torque is what would matter for instant hit needed for freestyle but would a 116lb/ft motor be able to pull like a 1200cc 2 stroke? I have no clue.
This is where reality gets kind of ugly. That motor claims 116Nm peak, which is about 85 ft. lbs. It also says max rpm is 5500. 85 ft. lbs at 5500 rpm puts you at about 90hp, and even that is likely optimistic for two reasons. One reason is marketing wank is common on stuff like this, the other reason is that we don't necessarily know that it can do the 85 ft. lbs at the max rpm. Electric motors have power curves somewhat like internal combustion motors, so most likely the torque peak is at a lower rpm, and the peak horsepower is something less than 90.
A good clue is that it says 550 amps and it says 96 volts. multiply volts times amps and you get 52,800 Watts. There are about 746 Watts per horsepower, so that's about 70 hp. Again that is probably optimistic and real world will probably be lower for a few reasons. One is that you apply 550 amps of load to the battery and there's a good change the voltage will sag a bit, and the amperage rating is likely the consumption, not the output. Due to less than 100% efficiency the output will be less than the consumption. They list 92% efficiency so if you believe that our 70hp is now down to about 63 (so stock 61x) and even that is probably optimistic, the motor is almost certainly nowhere near peak efficiency when it is at peak power.
I'm gong to say a realistic guess would be that motor would get you power that is somewhere between a stock 650 and a stock 61x.
On a more optimistic note, it says the 1 minute for the "peak" output, and to do a backflip obviously don't need anywhere near a minute, barely more than a second, so it or a similarly sized motor can probably be pushed a lot harder for 1 second than what they are claiming for 1 minute, so it might not be as bad as my rough estimate above.
On a more depressing note, it's "continuous" rating is more like 20hp-ish, which might not be enough to stay on plane. Liquid cool it and it can probably do more continuous, that is probably determined by heat.
The electric thing, while probably possible, will not be easy.
We will be running yamalube in oil diffusers and having discussions on our 3 way speaker installs about crossovers and equalizers to get that "throaty dasa 1200 mid range"
Tech threads like "proper subwoofer placement inside your tray" and questions concerning why at peak rpm im getting a stock exhaust sound
All of sudden yamaha is marketing MIDI controllers to the pwc market
really people will be asking what batteries to use and everybody will be telling them to ask their motor control unit builder and making fun of them because they want to do it themselves and only a pro will know how to do it.
- Location
- Florida
poop what frequency do I tune my hull?
- Location
- Florida
Hahahahaha
Talk to your Motor Control Unit builder bro
- Location
- Florida
- Location
- Granite Falls, Wa
The electric standup has already been made... Freeform factory built and tested it years ago... And then they were bought out by Nikola, and the project was scrapped. For Nikola they developed an electric couch due to come to the market soon.
- Location
- Asheville, NC
I would like to see more variation in trick creativity... Like taking hands off, legs off, can-can and rail grab variations. Can-can nose grab backflip? yes.
BTW, if you can't bulldog, you shouldn't be trying backflips
BTW, if you can't bulldog, you shouldn't be trying backflips
Freakrider
X247
- Location
- Tampa Bay area
I'm working on an electric standup ski with the ENTIRE top deck consisting of SUPER high efficiency/strength solar panels to charge the batteries as you ride and when taking a break. I'm working on this fantasy in my mind only...
That's another one that will be very depressing if you do the quick math.
hornedogg79
dodgin' bass boats
Aerial tricks aren't going anywhere. The level of talent at lake dias flatwater event this year was insane. Multiple riders doing no handed rolls., 50/50's, no hand one foot rolls, double backflips. Superman rolls during a combo! Some riders can do double rolls. Backflips while riding the hood. If you don't think flatwater freestyle is progressing I think you're a little nutty. What would be nice is if we could find a way to make it more affordable for everyone. Not holding my breath on that one.
That x1 electric ski was a dog. A stock 550 could walk all over it. Nikola smashed that idea to make crappy sitdowns for lake Tahoe anyway. Maybe some kind of gear reduction like the Tesla motor could help. Or a heavy flywheel and clutch system so it could spool up and we could "pop the clutch!". I've also thought about how a hydrofoil could be incorporated. Something like current E-foil boards but with a handle pole.
That x1 electric ski was a dog. A stock 550 could walk all over it. Nikola smashed that idea to make crappy sitdowns for lake Tahoe anyway. Maybe some kind of gear reduction like the Tesla motor could help. Or a heavy flywheel and clutch system so it could spool up and we could "pop the clutch!". I've also thought about how a hydrofoil could be incorporated. Something like current E-foil boards but with a handle pole.
- Location
- Cleveland, Ohio