Sharrow MX3 Prop on a Robalo R302

[@michiganengineer8621]

I would still like to see comparison numbers on a boat designed with inboard shaft drives. Say a Nordhavn, Hatteras or Viking

[@JoseRivera-zi2ph]

To expensive not affordable

[@w8stral]

You pay $100,000 on a boat and spend $5k on fuel... yet bitch about a propeller... on a luxury item... You sir, are an idiot

[@kfeltenberger]

I really like this technology but given that Sharrow's website says they have props for inboard drives, I would really like to see how these impact the performance on something in the 50-60' range or thereabouts. Outboards are fine...and if that's all they're going to focus on, that's ok. But if they offer something for an inboard, I think it would be a good test to see how it works on a distance cruiser or express cruiser.

[@A5JDZK]

It would be awesome if they were more affordable!!!

[@connerw25]

Hoping the price comes down, would love to get one for my 115 Optimax

[@lmyachts5238]

Would the Sharrows work on a displacement power boat, Captain Steve?

[@regressmenot]

I'm hoping you do a few more test videos on a variety of boats... Targa, Aquila, Beneteau. Would be interesting to see how well they perform on these types of boats.

[@floridaoutdooradventures8981]

It's good to see you Captain Steve! Welcome back -:)

[@switawivr6]

I realize these are expensive but how does the pricing compare to any high-end custom props out there? Seems to me the engineering is solid and the pricing just needs to come down for the wider market to benefit from them. If Sharrow can score a deal with outboard OEM or even boat manufacturer to make an optional or upgrade prop for their most popular models that would be huge for this design.

[@smannee]

I hope they start making an aluminum variant for small outboards 15-40 hp.

[@jstefa2]

yamaha licensed them fev months ago... i think they will become a standard option for all yamaha outboards.

[@alanploetz7100]

I like the idea of the greater efficiency, both speed and fuel burn. Unfortunately, I'm not sure I'd get sufficient fuel efficiency to make up for the initial cost of the Sharrows ove the life of the engines.

[@flacjacket]

The question isn't whether they would pay for themselves in fuel savings, it's whether the fuel savings would adequately defray the costs to the point you can justify it for the improvement in NVH, speed, time to plane, and low speed maneuverability and range. When you are spending $300k on a boat then $10k may be worth it even without the fuel savings for those other improvements.

[@jhelwig19781]

Great video Steve! I’ll eat the $5000 cost to save fuel economy, have better performance, and simply exact more joy in driving a boat.

[@judithmikula7521]

Would like to see a test on a bass boat

[@S.V.TeFiti]

Whats the story on a diesel outboard with Sharrow.? ultimate range?

[@mkp3824]

There's an MJM 35z for sale at Vermillion yachts in Ohio that has the Sharrow props on the Mercury 300's. They get about 5 mph more at midrange speeds, from going 19mph to going 25mph at same rpm.

[@curtalden2223]

HEY CAN YOU DO A TEST OF THE MERCURY RACING 250HP MOTORS AND MAYBE THE 450's???

[@Drake5153]

I'd love to see what range Sharrow has when it comes to performance, can they compete/cover the surface drive props?

[@KamronFultz]

I want to see them put one of these propellers on a tunneled hull boat like a Dargel or a Shallow Sport, and see how it does getting up in shallow water

[@TeachMeTheGuitar]

A pair for the Silent Yacht would be badass.

[@ronmolaro5085]

10K for Twins 😮

[@surfstarcc1]

Great test, im looking into these props. 👍

[@stevendavis7723]

$10,000 for 2 props !!!!!!!!!!!!!!! ooooffff

[@michiganengineer8621]

closer to $10k each last I looked

[@robertneilson3819]

5000 per prop??

[@planblaine8433]

At 5 grand y’all out y’all mind.

[@stevey_z]

I want two

[@MrMattMohler]

300 gallons!? I know I'm poor, but dam....

[@cesarpalmos8235]

You say they have 44 different props, but they are completely custom made and blueprinted to your boat.

[@Bubbles99718]

2 questions: Boat Test is pushing this directly, what are the kick backs, if any? Seems there may be some. 2. If this was feasible Merc or another big player would have picked them up. Any offers in this area? What's the inside story on that? One way or the other. This has the oder of an infomercial about it

[@BoatTEST]

no kickbacks. we have always supportive innovators and believe this is one of those those innovations that finally challenges the regular prop. We like the prop and we will continue testing it for you all. they are now have a partnership with yamaha so we think it's not going anywhere.

[@Bubbles99718]

@@BoatTEST Thx for responding and the Yamaha connection is interesting, and helps to validate this. It's difficult to get credibility until either it takes off or a major player steps in.

[@jstefa2]

yamaha picked them up. they should be out soon.

[@lewiswatchorn7239]

At $5k per prop, there absolutely must be a trial program so owners can try before they buy.

[@elainepeng8848]

What will these propellers change the calibration for joystick systems such as Yamaha helm master ?

[@korndawggy1801]

Would like to see a test on a 18-21 ft fishing/family boat if they make one for a boat that size.

[@codyepperson6796]

how much they cost ?

[@GavinKohAquascaping]

From what I've read, it is about $5K each.

[@alanploetz7100]

I think they fall in the category of, " if you have to ask, you can't afford them."

[@w8stral]

@@alanploetz7100 Its a luxury boat... if you have to ask, you can't afford the boat, get a kayak.

[@adamdavis4690]

Come on, I need to see a duoprop in action!!

[@carlwestfall2006]

Price too High! Would sell 5x more if it was reasonable $2500 would be doable!

[@besearchingforwisdom6267]

The Sharrow props have 6 blades effectively, and clearly more effective, and while the surface area of the blades are not apparently larger, the efficiency matches an increase in blade numbers. I would be interested in a test comparing the sharrow to a four five or six blade prop including the costs of each type. Good show

[@w8stral]

Uh, no: Most efficient, would be a single blade... but due to balance this is not a good option. One only needs more blades when one starts being impacted by cavitation due to excessive RPM to diameter ratio. So, lower the RPM and you will always be better, but this also makes a propeller with a lower optimum range of thrust. There is no free lunch. Sharrow propellers effectively eliminate the vortice loses and also increase the angle of attack effective at the tips so one delays cavitation at the tip while maintaining thrust. This is an ENORMOUS loss standard propellers have which it does not and why at mid range one sees the largest improvements as this loss is delayed significantly.

[@trappenator96]

Can you test the prop on a Rossiter 20

[@chrisdabfabbott]

Price comparison?

[@sawboatsndarmwrestling]

A lot, in Canada it’s around 9000 each prop vs 1600 for an enertia prop

[@chrisdabfabbott]

@@sawboatsndarmwrestling Holy crap! That buys a lot of gas!!

[@napalmhotdog4365]

@@chrisdabfabbott if you have the boat for a long time and you use it a lot, it will probably pay itself back in fuel saved

[@ianhood8081]

@@napalmhotdog4365 not to mention the reduced wear on the engines if you're running them at lower rpm's for the same speeds.

[@slabslayer258]

Lol 😂

[@qiaozhang8321]

pricing incorrectly, this is just a simple item made of steels, once a model is set up (with CAD), massive production can be made easy.. The high price is blocking majority from buying it. If it is priced at fifteen instead of fifty, many will buy, and most of us will find it not worth it as it does not seem to help, thus causing lots of negative comments everywhere. Therefore, the pricing strategy is, selling for very high, only a few buys, for those who bought it, they will not admit their wrong decision.

[@POKAIONTOP]

The price is insane, its no way they are that much better. I mean the prop for my 115Hp Murcury is maybe 3-500 USD. So it has to be 3-10 Times better to be worth it. It almost feels like a scam to be honest....

[@paulswagelock5986]

I call BS. Look at the original review of the Robalo 302 from Boattest. In that article it showed 3500 rpm was 31 mph, but in this “comparison video” you claim the standard props only produce 21 mph at 3500 rpm and the special Sharrow pop does 31. Were you wrong back then or now……..

[@ekbusdriver]

This is my only issue with these tests. Nobody, and I mean nobody, pushes the rpm’s to 3500 and hopes the boat will get on plane. Power up on plane and then come back to the rpm you want, and I want to see the Sharrows tested like that. I believe they are more efficient, just not as much as these tests show.

[@davygravy7332]

@@ekbusdriver I like the concept of getting rid of the propeller tip vortex, but it looks to me like a modified 6 bladed propeller, and that should be more efficient. If there is less slip at RPM then you are accelerating the water faster which equates to more thrust. Moving the water at a higher rate also reduces the drag imposed on the boat, does not pull the stern of the boat down into the water as much, this would alow the boat to plane at a lower speed. But more blades are not as efficient at high speed.

[@Clayshooter100]

I'd like to see these Sharrow propellers compared to other propellers designed for fuel economy (such as the Mercury Enertia ECO). The Yamaha SWS ll props are good but aren't nearly the most efficient conventional propeller on the market.

[@Bubbles99718]

This is an infomercial, that's why

[@Clayshooter100]

@@Bubbles99718 Correct

[@curtalden2223]

HOW LONG BEFORE THE ROI ON THE PROPS FOR A TWIN? I HEARD THEY WERE MAD EXPENSIVE. HOW LONG WOULD IT TAKE TO MAKE IT WORTH WHILE????

[@camd5348]

This is total bs. Price is ludicrous. How about we see a price for normal man boats. And normal man tests. #outtolunch

[@RLC2020]

nice paid advertisement from Sharrow. How much is your credibility worth nowadays?

[@Happy-Honkey]

How much were you paid for this infomercial?

[@squirts1]

these read more like an advertisement than an independent test.