Heey Jasmin,
are you feeling better again…?
hope you are oke, can you give us some moren information about the prop price and when we can order?
thanks
Hello everyone,
Unfortunately Jasmin is taking a small break from the business to stay closer to his family and won’t be available untill then. He should come back soon, but in the meantime I will try my best to temporary take over this part as well.
I have been forwarded all the MP’s and emails from Jasmin and Seahorse’s webshop and will try to answer you all as soon as possible. Kindly send any further question / proposal to me by MP untill Jasmin comes back.
In the meantime here are few informations I can already share :
I am sorry to make you wait so long, I am still awaiting one last quotation from the CNC company and agree on planning before starting the production.
I should be able to answer you begin of the next week about when you guys can order from us.
I see some of you are cautious about the props, so I will certainly pick one or two persons from this chat to send one free propeller to be reviewed before anyone can order more. I am ready to invest in the community if community helps us back as well 
I see lot of questions about the price. To be clear, target price is under 200€ but depends heavily on order quantity and CNC quote as well. I got few quotes but none of them is ok for me right now. Hoping the last one can make a difference as we plan to work with them for lots of other parts as well.
It is great that the number of commercial propellers that can be bought in the EU (without customs fees and expensive postage) will be expanded. It’s just a shame that you changed everything about the propeller, even the direction of rotation of the propeller. After all, all successful e-foil propellers use a counter-clockwise rotation direction. There are a number of reasons for this. Clockwise rotation has no hydrodynamic or mechanical advantage.
One of the reasons is that most engine shafts are right-hand threaded!
The direction of rotation is not that important, it can be easily changed for almost everyone.
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I once heard a wiseman saying that you need to think “out of the box” to innovate. Doing so obviously requires to think about everything from scratch, hence having a very different design.
Rotation direction is purely personal preference. CFD shows no real gain / loss in efficiency. @Ackermann tried both a CW and CCW prop from us. To my knowledge there was again no gain or loss from it.
Also, all you need is a nylstop nut and you are good to go, whatever your shaft thread direction. Drones have been using them forever with very few fails despite the higher RPM’s (I have been using 2450kV motors at 4S and never had any loose propeller, even after countless crash).
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Someone already posted here on the forum that he lost the propeller, I think it was aluminum. Definitely had a nylstop nut. And of course drones can’t be compared to the performance of e-foil engines - 1 m3 of air has a mass of about 1kg, 1 m3 of water has a mass almost 1000 times greater. Clockwise rotating propellers are only used in exceptional cases.
Drones have many mores rpm… 30000 rpm
Direction is not importent!
Without much thought, I’m pretty sure that it’s not the number of revolutions per minute, per hour, etc. that matters, but only the engine torque and the propeller work done per revolution.
All the propellers I now carry, even for airplanes, are left handed.
No, Piaggio Avanti is a pusher plane 
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Well I prefer CCW props, as my shaft and Flipsky Maytec are regular threated. Makes no difference in performance, but I lost a CW prop already, even it was secured with a nylstop nut. Ok it was not new and used a couple of times, but anyway go for standard and provide CCW Prop;-)
as long as you have power on the motor, the propeller will stay on the shaft even without a nut…the propeller is pushing…only when “braking” there will be any pressure on the nut, but even so the propeller and the nut usually turn with the same speed(at least it should 
) so there is no torque from the propeller to the nut…A normal nylock will not come loose from a turning shaft, there is no significant turning force on it, the force is on the cotter pin or splines in the propeller.
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The problem only arises if there is mechanical backlash between shaft and prop. Then any prop will loosen the nut, regardless in which direction it turns. Then also a nylock will loosen. But there is a solution: Nord-Lock Wedge-Locking Products - Nord-Lock Group
I would expect that the shear pin or however it is called would be shoot to eternity if the prop get lose a bit. For FR and Shadow prop the cavity is kind of flat, but the threaded shaft is long. If the pin is gone, the prop can’t turn anymore so I guess it should be secured?
However, I never had issues with cw or CCW props. But I do check the nuts by time (@Toto44 any comment on this?)
I see nothing more happening at seahorse.si? So I assume this shop does no more exist, correct?
Hi guys, that’s not true. Seahorse is still alive and so are we.
I have been in touch with countless CNC companies to be quoted for during 2021, all of this to be able to sell props for under 200€.
Sadly, after that much time I still haven’t found a good company to partner with for low quantity (50 pieces or less).
Right now, if we produce 50 pieces, we won’t be able to sell them under 250€. Which is pricey for good reasons (raw material, hard anodizing, electricity price,…). This price doesn’t include freight and vat.
But, if we have more than 50 orders on this first batch, we can do a one time price of 160€ / piece. The only issue being the fact that we would need more than 50 orders,…
Hit me up if you guys think we can start a 50+ props batch. Otherwise I’m still looking for new cnc prices.
Happy new year to everyone!
FWS
Note : CW vs CCW is totally up to what you guys want in the end. I personally prefer CW but we can produce in whatever you want as long as everyone agrees.
Easyfoil already sell their props for under 200€
They have a 6" for 149€ and the 7" prop for 179€.
Best regards
Being totally honest, with no intention to bash anyone, you simply can’t compare 2 products like this because :
- Our products are designed from scratch rather than simply 3D scanning something existing on the market and sell it back. You see this simply by the geometry already…
- Easyfoil’s clone propeller looks like MJF printed (or similar 3D print technology) in metal rather than milled from a solid aerospace aluminum block…
- Price difference when machining a 6, 7, 8, 9 or higher pitch propeller compared to another pitch is almost non-existent for this diameter. A 5 axis mill machine will do the job exactly the same way at roughly the same price. (We have all these pitches available and more btw).
What you think you know 
Material, and that the Easyfoil Prop is scanned etc …
You don’t know anything, it’s all just speculation!