If you’re struggling, consider therapy with our sponsor BetterHelp. Click
https://betterhelp.com/sailinguma for a 10% discount on your first month of therapy with a licensed professional specific to your needs.
00:00. What’s happening?
00:51. Elco
03:30. Therapy
05:19. FinX
08:13. Yamaha
09:32. Remigo
14:34. Torqueedo
18:19. Temo
20:59. Epropulsion
26:26. Omega Grey
29:04. Kräutler
32:06. Combi
36:50 Bellmarine
42:28. EPTechnologies
47:04. Ocean Volt
For Bonus videos, Ad Free episodes, access to The Unknown podcast, and daily updates on Discord:
▸ https://www.patreon.com/sailinguma
↓ BINGE WATCH ↓
▸ Watch our story from Step 1 : https://youtu.be/lAye0mf2A8g
▸ OUR BOAT (1972 Pearson 36) https://www.sailinguma.com/our-boat
▸ MERCH : https://store.sailinguma.com/
▸ WEBSITE: http://www.sailinguma.com
▸ FACEBOOK: http://www.facebook.com/sailinguma
▸ INSTAGRAM: https://www.instagram.com/sailinguma
↓ MUSIC ↓
▸ MUSICBED: http://share.mscbd.fm/sailinguma
▸ SPOTIFY: https://open.spotify.com/user/lcddinzx0zfvcas46i441m4o0?si=de274c0424664ae0
↓ AFFILIATES ↓
▸ Insta360 cameras: https://www.insta360.com/sal/go_2?insrc=INRITHH/
▸ EASY SEA winch Handles:
https://easysea.org?sca_ref=46948.6nWaqdX9NZ/
(For an extra 5% discount, use the code: UMA5 )
▸ BATTLE BORN BATTERIES:
http://battlebornbatteries.com?afmc=su_01/
▸ TEAM-O life jackets:
(Get 15% off with Promo code: SailingUma )
31 Comments
Diesel is getting worse, electric is getting better through… software updates… yeah sure. Let's forget about magnitudes of energy density all together. It's going nowhere, especially in boating.
Where are the fully retractable through hull props for 8 meter plus yachts. Why not have zero drag, and isolation from the corrosive seawater. Also easy for removal while in the water.
The EPTechnologies guy hit it on the money. For most people regen is just hype… they wont use it, or take very little advantage of it in real life. Also, most (long distance) cruisers won't give up on the diesel at least as a backup. That said, hybrids that can work independently are a very good idea for long distance cruisers. You can have all the range you want (aka diesel), and a massive generator that, combined with a big enough battery bank, can provide power for days in a couple of ours (solar helps, but in doesn't scale on monohulls, cats, maybe, but there is always rainy days and short days if you are up north)
You should say from the start that this video is advertising for Oceanvolt. It became quite obvious why you asked that specific question over and over with a nice rehearsed answer at the end. I'm not sure this was an honest reflection of what you saw at the fair…
There are some great ideas popping up there.
That diesel hybrid looks dope… want
Big props (ahem) for this big tour of the "state of the art" great work!
It's strange how many companies seem to just not get the importance of regen. I'm another long range cruiser who really sees it as a must have. Granted, it is complicated and to get the most out of it. They will have to run some CFD simulations of various prop models. Even the companies that are the best at regen are really cagey about the data. Ocean volt seem pretty good, and the variable pitch idea makes sense, buuut the pitch controller does not take in boat speed data or have any way to learn and predict the optimum settings based on historically observed performance for given environmental conditions. They won't sell (me) a system without including their own batteries which are like 4x the price per Kwh of more standard LiFePO4 cells , and in general the system is really expensive. Also, the VP prop is only available on sail drives, which I find strange given that shaft drive is often preferred by the the folks most interested in regen, the long range cruiser, because of it's stronger design, being naturally more protected from impacts, over the more exposed sail drive. Also, I didn't see a single one using axial flux motors which have a vastly higher power density than other motor designs. makes one want to have a go at designing their own …
I was a Torqeedo customer already 8 years ago for an outboard (cruise 4.0) and while there was a lot to like, (the precise control, the quietness) the support was worse than non existent. However, an open unprotected 48V system without even splash resistant connectors in a splashy dinghy led to a lot of issues and embarrassments, even after I had a custom enclosure built for it. I often got strong tingles through salty wet ropes. Mad electrolysis, nerve wracking beach landings etc , and those expensive plastic propellers that you can't find anywhere lasted less time than anything else I've ever owned on a boat. One even got pulled off it's splines by a wave while the dinghy was hanging on the derricks! That outboard system with all the chargers and everything cost me about 10k euro at the time. They quoted me 250 (god damn!) k euro for a deep blue system to re-power my main house boat, like many times more than the value of the boat. I am so very happy that they have plenty more competition these days!
Thunderstruck motors is who I went with
Sampson Boat Co are putting a hybrid into Tally Ho.
re gen is key !
e propulsion re gen in smal 24" sail boat it works great with 2 baterías
Excellent, I didn't have time to go to the METS this year. I'm following the trends for electrical engine and systems for sailboats. I use mostly Victron Energy products onboard that may be connected (supply the power) to electric motors.
@29:22 Clark Kent walked past! Reeves
Uma…??
friend has replaced his sail drive with an azipod, between that and his bow thruster boat has amazing parking ability
This video is interesting and informative, which is not an easy combination to achieve. Kudos!
This video is interesting and informative, which is not an easy combination to achieve. Kudos!
That EP Technologies guy must not have known who you guys are. And wow! He's touting regeneration with the propellor, but then downplays whether it gets used.
It was very interesting and thought-provoking. Many thanks
Surprised that you are shocked by the limitations on regen when you have been researching this for yonks .E propulsion for example have been illustrating this for their pods in their published data for a long time and indeed early users have soon resorted to larger batteries and generators.This is as you suggest the magic grail for smallish cruising sailing craft so the designers are not simply being perverse – maybe the physics is just not there.I thought you, with your very hands on,forensic experience , were somewhat tongue in cheek with these innocent stallholders Nevertheless a highly instructive and enjoyable video .
This video was so well done and informative! Your channel provides such an education! Thank you both for the hard work and great job!
Thanks for the interesting video!
Statistically, a sailboat is at anchor most of the time, so the recuperation function of the electric motor is absolutely not relevant.
I would say that hybrids from Combo is the most interesting solution but definitely they have to add a clutch to be able to disconnect electric engine from the prop shaft.
The FinX guy was kind of a dick.
Co tent well done. Super informative. Could live without "shocking" in the title.
Solid stuff.
Omg!!!
💖💖💖
FinX looked pretty awsome!
Someone needs to talk to the Fin sales lady about HP. 2KW is only 2.7HP, not 4-5.
I doubt there's anyone in any specialized boat, designed for an exact match electric motor, propeller, and controller with the most efficient setup, that can regen more than 10% of available energy.
Regen for boats is a joke hyped to the max. It isn't worth pursuing for 99% of the boat designs today, maybe not even ever.
Great content.