OJ Uses Advanced Prop Design Techniques

[Jesus_Freak]

Just wanted you all to be aware of the great effort Eric at OJ is applying in order bring you all the best prop on the market. He and I have embarked on a series of studies to optimize his proven design. No, this is not a paid advertisement....just an FYI. Take it for what it is worth. Below is a sample of some results showing, in short, the movement of water around one of his designs.

[Jim@BAWS]

Looks more like a piece or pretty cool artwork

Glad you are helping Eric out...good guy to work with

Jim@BAWS

[CruisinGA]

CFD is pretty cool stuff...

So the real question is, will it make me jump higher and land more back rolls?

[thatsmrmastercraft]

I'm thinking 50 more RPM and one more MPH.

[87MCProstar]

i feel like an idiot, what does that diagram mean?

[bobx1]

Originally Posted by 87MCProstar

i feel like an idiot, what does that diagram mean?

I did not think it was a diagram but thought it was some new type of LED light kit for your prop. I tried something similar but the cords kept getting tangled.

[DooSPX]

JF, understood about the ONE and ONLY who deserves it. After all, HE created us.

Both major players have their own advantages and disadvantages. It would be great if you and Eric could get say the equal 3 blade and 4 blade slalom props and equal wake boat props and test them.

JF, you may have some input on my opinion... If you look at the other brands' blade design, it looks like a prop that is used on a big boat/ship, to create the MOST possible thrust per revolution of the prop compared to OJ's wide elephant type design which seems to favor the wake and feel of the skier behind the boat.
Does the above seem plausible to you?

if there is going to be a blade design change, I may have to hold off getting my OJ 454 four blade.

[Jesus_Freak]

Originally Posted by ski_king

Very cool and interesting information. It is nice to see a company puting time and money into R&D.

Did you start to see those cool colors before or after your ski met your head at CSM?

Before, during, and after! I also heard a ringing sound, followed by birds singing

Originally Posted by bobx1

I did not think it was a diagram but thought it was some new type of LED light kit for your prop. I tried something similar but the cords kept getting tangled.

Excellent!

Originally Posted by DooSPX

JF, understood about the ONE and ONLY who deserves it. After all, HE created us.

Both major players have their own advantages and disadvantages. It would be great if you and Eric could get say the equal 3 blade and 4 blade slalom props and equal wake boat props and test them.

JF, you may have some input on my opinion... If you look at the other brands' blade design, it looks like a prop that is used on a big boat/ship, to create the MOST possible thrust per revolution of the prop compared to OJ's wide elephant type design which seems to favor the wake and feel of the skier behind the boat.
Does the above seem plausible to you?

Thank you for the comments. I probably should avoid giving my comparative opinions publically at this stage of the game. I am hoping at some point Eric is going to pipe in...

[DooSPX]

thank you JF...
I by no means meant to put you on the spot. I am sorry about that. I do hope Eric does chime in soon.

[slickwater1]

It appears to me that it is showing differentiated amounts of pressure applied through out the water column. with blues and greens being little to no pressure applied "resistance" and reds being significant amount of force being applied to the water. basically showing how the prop works as it is propelling the boat. I am not an engineer but this is what I gather.