# FR folding prop
**URL:** https://foil.zone/t/fr-folding-prop/16795
**Category:** Props & Ducts
**Created:** [September 22, 2022, 5:16pm UTC](https://foil.zone/t/fr-folding-prop/16795 "2022-09-22T17:16:21Z")
**Posts on this page:** 20
**Page:** 3
### Author:  [@brycej](https://foil.zone/u/brycej)
#### Post date: [December 13, 2022, 2:55pm UTC](https://foil.zone/t/fr-folding-prop/16795/41 "2022-12-13T14:55:28Z")
Mine was on my doorstep in Colorado while I was efoiling down in Corpus Cristi, TX last week!
Now back home we have a blizzard warning š Lets see if I can try it out in some cold water before stuff freezes too muchā¦
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### Author:  [@Wodden\_CustomBoards](https://foil.zone/u/Wodden_CustomBoards)
#### Post date: [December 13, 2022, 4:54pm UTC](https://foil.zone/t/fr-folding-prop/16795/42 "2022-12-13T16:54:08Z")
Thank you david
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### Author:  [@Sourcecode](https://foil.zone/u/Sourcecode)
#### Post date: [December 13, 2022, 10:38pm UTC](https://foil.zone/t/fr-folding-prop/16795/43 "2022-12-13T22:38:57Z")
Also received my FR props, cheers David š»
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### Author:  [@SoEFoil](https://foil.zone/u/SoEFoil)
#### Post date: [December 14, 2022, 12:14am UTC](https://foil.zone/t/fr-folding-prop/16795/44 "2022-12-14T00:14:49Z")
Looks like this cavity could create some drag compared to the slotted hub designā¦
Any pict of the quick FR mount ?
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### Author:  [@brycej](https://foil.zone/u/brycej)
#### Post date: [December 14, 2022, 1:11am UTC](https://foil.zone/t/fr-folding-prop/16795/45 "2022-12-14T01:11:07Z")
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### Author:  [@SoEFoil](https://foil.zone/u/SoEFoil)
#### Post date: [December 14, 2022, 8:19pm UTC](https://foil.zone/t/fr-folding-prop/16795/46 "2022-12-14T20:19:48Z")
How do you mount this prop on a M8 motor shaft ?
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### Author:  [@Jezza](https://foil.zone/u/Jezza)
#### Post date: [December 16, 2022, 4:44am UTC](https://foil.zone/t/fr-folding-prop/16795/47 "2022-12-16T04:44:28Z")
From my understanding it has a latching effect on the prop shaft pin. I havenāt actually see the exact mechanism yet though.
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### Author:  [@brycej](https://foil.zone/u/brycej)
#### Post date: [December 24, 2022, 12:55am UTC](https://foil.zone/t/fr-folding-prop/16795/48 "2022-12-24T00:55:04Z")
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### Author:  [@JvdZ](https://foil.zone/u/JvdZ)
#### Post date: [December 24, 2022, 10:19am UTC](https://foil.zone/t/fr-folding-prop/16795/49 "2022-12-24T10:19:43Z")
The outer latches grip on the pin of the propshaft and are spring loaded? How is the release done?
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### Author:  [@brycej](https://foil.zone/u/brycej)
#### Post date: [December 24, 2022, 9:26pm UTC](https://foil.zone/t/fr-folding-prop/16795/50 "2022-12-24T21:26:05Z")
Yeah it seems like the outer latch is just the metal clip that bends slightly and latches to the pin. To remove i used a screwdriver to lever it out. I couldnāt pull it off by hand, but didnāt try too hardā¦
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### Author:  [@NJfoiler](https://foil.zone/u/NJfoiler)
#### Post date: [January 21, 2023, 12:25am UTC](https://foil.zone/t/fr-folding-prop/16795/51 "2023-01-21T00:25:50Z")
Does the Lift version require the new quick-connect kit from Lift? Or can you attach it to any Lift efoil without extra accessories?
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### Author:  [@t-dub-maui](https://foil.zone/u/t-dub-maui)
#### Post date: [January 21, 2023, 7:23am UTC](https://foil.zone/t/fr-folding-prop/16795/52 "2023-01-21T07:23:06Z")
Any plans to make a folding prop for a 6384 motor (similar to what is on the Foil Drive Assist Plus)?
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### Author:  [@Flying\_Rodeo](https://foil.zone/u/Flying_Rodeo)
#### Post date: [January 21, 2023, 8:23am UTC](https://foil.zone/t/fr-folding-prop/16795/53 "2023-01-21T08:23:32Z")
No, you dont need extra parts.
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### Author:  [@okp](https://foil.zone/u/okp)
#### Post date: [January 21, 2023, 8:52am UTC](https://foil.zone/t/fr-folding-prop/16795/54 "2023-01-21T08:52:15Z")
this is beautiful ! congrats man !
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### Author:  [@nekitesurfing](https://foil.zone/u/nekitesurfing)
#### Post date: [January 21, 2023, 6:15pm UTC](https://foil.zone/t/fr-folding-prop/16795/55 "2023-01-21T18:15:40Z")
Has anyone has made any adaptations to allow these to fit a 6384 motor with the 4 M4 screws? If so, please could you share the details? Thanks.
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### Author:  [@mareks360](https://foil.zone/u/mareks360)
#### Post date: [February 5, 2023, 5:46am UTC](https://foil.zone/t/fr-folding-prop/16795/56 "2023-02-05T05:46:41Z")
Can I offer some constructive criticism to Flying\_Rodeo ?
I really appreciate your flexibility to help the e-foil builders Community with your skills, talent and capability. I am also glad that you offer the discount for the Community.
I think the folding propeller is a Great Concept. I experienced disadvantage myself that with larger fixed props and trolling motor that when the prop stops (there is no clutch or āidleā), the larger fixed prop acts like a speed brake. Board stops - I continue to flying forward. Call it āface plantingā in the water.
So the concept of foldable prop is great for so many aspects, even for catching the wave with electric assistance then saving on batteries and just riding the wave.
HOWEVER, the current implementation where the prop clips to the pin and IS NOT secured with a nut is just insane IMHO.
When I used external ESC (bypassing) Caroute N300 ESC and using its Motor and variety of modified props, I could easily sheer (break) the pin, just by slamming the throttle to the max.
That is exactly the point of that round shaft and sheer pin design that if you hit something or if the torque is too much for the motor the pin suppose to sheer (break) to protect the motor (and the shaft). Prop still stays on the shaft (spinning idle).
In your āclever marketing designā the user loses the prop so will have to buy another one. Quickly ādisposableā props ?
Please note there is also a difference in load when you have a skinny kid around 50kg (110LB) and full size adult like myself with weight between 90-100kg (200-220LB).
Also many lakes later in the season have milfoil and/or other weeds and most trolling motor ESCs (sold on the market) have built in protection when the load is detected (shut down or reduced power automatically). This is not the case for most DIY E-Foils. So the risk of sheering /breaking the pin is much greater.
I would definitely be interested in your foldable prop when design is changed so there is still securing nut at the end of prop shaft.
PS: After putting my project for couple of years on hold I am planning to go back and restart it:
> [@Seattle USA Converting Windfoil (Windsurf Foil Board) into E-Foil when not enough wind using Trolling Motor](https://foil.zone/t/seattle-usa-converting-windfoil-windsurf-foil-board-into-e-foil-when-not-enough-wind-using-trolling-motor/5897):
>
> I have started a while ago a Blog / Topic in our Pacific North West Windtalk Forum for Windsurfers and Windfoilers frustrated with not enough wind around Seattle Metropolitan Area under title: āHow to quickly convert your Windsurf Foil Board into Electric Foil Board for around $1500 - DIY - Methodology behindā [https://groups.io/g/nw-windtalk/topic/32817001](https://groups.io/g/nw-windtalk/topic/32817001) All the details: āThe Journeyā, āProgressā & applied āLearningā is documented there. Here I am only posting some highlights only. Basic ā¦
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### Author:  [@SoEFoil](https://foil.zone/u/SoEFoil)
#### Post date: [February 5, 2023, 3:03pm UTC](https://foil.zone/t/fr-folding-prop/16795/57 "2023-02-05T15:03:52Z")
> [@mareks360](#):
>
> When I used external ESC (bypassing) Caroute N300 ESC
Using the firum search function on Caroute leads us to day 5 of this forum and to American members trying to implement the trolling motor as a efoil motor.
> [@Modifying commercial boat motor systems](https://foil.zone/t/modifying-commercial-boat-motor-systems/363/2):
>
> More powerful and expensive: [Caroute N300](https://www.facebook.com/pg/CarouteMotor/shop/?ref=page_internal) as full motor or as DIY Maximum thrust: 160 pound Input power:2100W Maximum efficiency:65% Volts:48V Maximum current:43Amp Maximum propeller speed:1500 RPM Shaft: Stainless steel, standard length 42ā
> [@mareks360](#):
>
> would definitely be interested in your foldable prop when design is changed so there is still securing nut at the end of prop shaft.
V1 of the FR folding propeller had a nutā¦
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### Author:  [@mareks360](https://foil.zone/u/mareks360)
#### Post date: [February 5, 2023, 7:30pm UTC](https://foil.zone/t/fr-folding-prop/16795/58 "2023-02-05T19:30:02Z")
> [@SoEFoil](#):
>
> Using the firum search function on Caroute leads us to day 5 of this forum and to American members trying to implement the trolling motor as a efoil motor.
Thanks SoEFoil, Yes the concept of using trolling motor for e-foil convert goes back to 2017 with Caroute N300 evaluation. I started my project in Summer of 2019 and by Spring 2020 put it on hold.
Issues with theoretical (or advertised) specs vs actual performance, incompatibility of remotes PPM vs PWM, no proper waterproof PWM remote, etc, etc. And there was enough wind to enjoy windfoiling for last 3 years in Seattle pretty much every week until now ācabin feverā and no sustainable wind above 5mph.
So the trolling motor concept to be successful must be based on max foil size (max lift) at slowest possible speed. In order to be inexpensive, the board and foil has to carry more weight (heavier motor & heavier batteries). I am heavy as well (now 90+kg /200+LB) anyway.
> [@SoEFoil](#):
>
> V1 of the FR folding propeller had a nutā¦
It is a Win-Win situation when everyone is happy and the Design is well thought through. I donāt want anybody to lose their propellers because pin sheered āas designedā (due to load) and there was nothing holding the prop to the shaft anymore.
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### Author:  [@Larsb](https://foil.zone/u/Larsb)
#### Post date: [February 6, 2023, 9:15am UTC](https://foil.zone/t/fr-folding-prop/16795/59 "2023-02-06T09:15:04Z")
> [@mareks360](#):
>
> When I used external ESC (bypassing) Caroute N300 ESC and using its Motor and variety of modified props, I could easily sheer (break) the pin, just by slamming the throttle to the max.
> That is exactly the point of that round shaft and sheer pin design that if you hit something or if the torque is too much for the motor the pin suppose to sheer (break) to protect the motor (and the shaft).
Donāt agree with you here, a shear pin design which breaks due to throttling is too weak. The design of the shear pin is firstly to protect the shaft and gears if you hit something with your propeller, not really to break from motor torque.
After breaking the shear pin with a strike youāre left with a propeller that is unlikely to run ok again, at least for the thicknesses of propellers we see on efoils. If you want to limp home with the damaged propeller you wonāt have tools with you to temporarily fix it either - so i donāt think losing the propeller is making a difference.
Unfortunately iāve hit the bottom a few times and my propellers all drew their last breath so i have some efoil experience on this subject š
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### Author:  [@Sourcecode](https://foil.zone/u/Sourcecode)
#### Post date: [February 6, 2023, 10:16am UTC](https://foil.zone/t/fr-folding-prop/16795/60 "2023-02-06T10:16:19Z")
I too have vast experience with hitting things Iāve hit the bottom, fish, logs, cray pot lines, sand banks, kelp and some of those at pretty decent speeds. Iām over 105kg - never snapped a pin or lost a prop this Includes the new folding props. admittedly I was dubious at first about having no nut to lock it in place but she suck on there real good lol
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