T-Pain Is On A Boat: Re: [Electric Boats] Folding Prop and Regen

Thursday, June 6, 2019

Re: [Electric Boats] Folding Prop and Regen

It runs in reverse. Can also change pitch.

Sent from my iPhone

On Jun 6, 2019, at 4:23 AM, Martin Thacker martythacker@gmail.com [electricboats] <electricboats@yahoogroups.com> wrote:

Yes I've seen the information from the ocean volt system that uses a folding prop for Regen,
here is a video of it: https://www.youtube.com/watch?v=OPSruoTjLZU
They are pushing a button which takes the prop out of the folded mode and must set it into a locked mode where it becomes a turbine.

It seems you would need some control on the folding mechanism to over-ride its natural tendancy to fold up when under sail.

I am also interested to know if anyone has used a folding prop setup to do regen on a shaft based electrical motor . (not sail drive)

thanks

On Thu, Jun 6, 2019 at 1:48 AM 'Gennaro Fazio' gfazio@rochester.rr.com [electricboats] <electricboats@yahoogroups.com> wrote:

I have a 10.5Kv thunderstruck and a non folding 3 blade prop – it starts spinning at 4.5 kn to give me -1.5 amps.. Folding props do not have the same resistance in the water – unfortunately you will not have any regen. Gennaro

From: electricboats@yahoogroups.com [mailto:electricboats@yahoogroups.com]
Sent: Tuesday, June 4, 2019 6:18 PM
To: electricboats@yahoogroups.com
Subject: [Electric Boats] Folding Prop and Regen

Anyone using a folding or feathering prop and able to regen? Im converting my NY 36 from a volvo md7a 13hp to a 10kw thunderstruck sailboat kit. I have a folding prop and i was wondering if it will spin up for some regen underway.

Thanks
Gary S.