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Search took 0.00 seconds. Search: Posts Made By: emayd
Forum: Electrical: Batteries, Generators & Solar 15-03-2023, 11:59
Replies: 0
Views: 427
Posted By emayd
Starlink on an open deck

https://www.youtube.com/watch?v=wusPeOUxJDw&t=2s


Catamaran Office :smile:
Preparing to sail in Canada.

Four months of rest and work at the same time

...
Forum: Multihull Sailboats 05-01-2022, 03:06
Replies: 6
Views: 2,502
Posted By emayd
Re: Ducky 19R

Welcome to Ducky family :)
Forum: Multihull Sailboats 04-01-2022, 07:53
Replies: 6
Views: 2,502
Posted By emayd
Re: Ducky 19R

We were in final with another 5 team. But weren’t win.:(
https://www.xprize.org/prizes/ocean-discovery

Our boats participated in NATO project OCEAN2020...
Forum: Pacific & South China Sea 27-12-2020, 14:46
Replies: 10
Views: 4,831
Posted By emayd
Canada 2008 BC on two Ducky-19 inflatable catamarans

This message was originally posted on wrong thread. I've duplicated it here.



Because of long "home vacation",thanks lock-down :), I've found time to work with my archives.
I've finished and...
Forum: Pacific & South China Sea 27-12-2020, 13:44
Replies: 10
Views: 4,831
Posted By emayd
Re: British Columbia Pics '08

Because of long "home vacation",thanks lock-down :), I've found time to work with my archives.
I've finished and published log story of Canada 2008. Travel with two Ducky-19 in British Columbia.

...
Forum: Electrical: Batteries, Generators & Solar 18-06-2020, 05:22
Replies: 17
Views: 1,987
Posted By emayd
Re: My multisource battery charger project for small boat

Today tested one more variant with MPPT charger
Forum: Electrical: Batteries, Generators & Solar 15-06-2020, 23:53
Replies: 17
Views: 1,987
Posted By emayd
Re: My multisource battery charger project for small boat

I have small battery pack, together only 27 Ah.


And in case if all sources work together: solar up to 80watts, generator up to 50 watts, motor up to 50 watts - common current much more :) than ...
Forum: Electrical: Batteries, Generators & Solar 15-06-2020, 23:27
Replies: 17
Views: 1,987
Posted By emayd
Re: My multisource battery charger project for small boat

I use Marlec charger about nine years - https://www.marlec.co.uk/product/hrsi-regulator-1224v/


And I'm not satisfied with it. It can't limited current to battery, it can't utilize electricity if...
Forum: Electrical: Batteries, Generators & Solar 15-06-2020, 15:18
Replies: 17
Views: 1,987
Posted By emayd
Re: My multisource battery charger project for small boat

I can implement next variant.
Does it make sense to add hysteresis in charging procedure?
Disconnect charger when buttery is full and connect it again when battery voltage drops on some level? Or...
Forum: Electrical: Batteries, Generators & Solar 15-06-2020, 09:48
Replies: 17
Views: 1,987
Posted By emayd
Re: My multisource battery charger project for small boat

We are small team



https://www.justducky.de/img/greenland/2011/images/273_1318357286.jpg_283



and for sailing we use usually two Ducky-19 (https://ducky.com.ua/classes/ducky19/) ...
Forum: Electrical: Batteries, Generators & Solar 15-06-2020, 06:56
Replies: 17
Views: 1,987
Posted By emayd
Re: My multisource battery charger project for small boat

There is no problem to set charging voltage to 14.8 and add an extra guard module that will separate charger from the battery till voltage drops below specified level.
For example 13.0 or 12.5 V....
Forum: Electrical: Batteries, Generators & Solar 15-06-2020, 05:29
Replies: 17
Views: 1,987
Posted By emayd
Re: My multisource battery charger project for small boat

Please point me on charger that gives possibility to reduce current, brakes wind generator, charging battery when source voltage is low. I didn't found any ... :(


This DC-DC controller reduce...
Forum: Electrical: Batteries, Generators & Solar 15-06-2020, 03:49
Replies: 17
Views: 1,987
Posted By emayd
Re: My multisource battery charger project for small boat

It was first variant of controller with 3 separate DC-DC modules. But unfortunately there is a problem to synchronize them. It needs external 2 KHz impulses source.


After that I've tested...
Forum: Electrical: Batteries, Generators & Solar 15-06-2020, 03:16
Replies: 17
Views: 1,987
Posted By emayd
My multisource battery charger project for small boat

https://www.justducky.de/img/my_tips/charger/charger-controller.PNG

More explanation here (https://www.justducky.de/index.php?language=en&main_topic=my_tips&sub_topic=multisource_charger_tips)

...
Forum: Multihull Sailboats 02-02-2020, 10:53
Replies: 7
Views: 2,426
Posted By emayd
Re: Canada BC 2014 on two Ducky-19

Salmon on Indian's art. Cooked by one of member of https://en.wikipedia.org/wiki/Kwakwaka%CA%BCwakw

https://www.youtube.com/watch?v=KNp2rnImwic
Forum: Multihull Sailboats 27-12-2019, 13:04
Replies: 6
Views: 1,494
Posted By emayd
Re: Researching drones based on sailing catamarans

One more picture
Forum: Multihull Sailboats 17-12-2019, 16:39
Replies: 6
Views: 1,494
Posted By emayd
Re: Researching drones based on sailing catamarans

This is D19 (big drone :) ) under sails


https://www.youtube.com/watch?v=jyzmBGSOae4&feature=emb_logo




https://www.youtube.com/watch?v=M_e5R7gcE7g&feature=emb_logo
Forum: Multihull Sailboats 11-12-2019, 08:14
Replies: 6
Views: 1,494
Posted By emayd
Re: Researching drones based on sailing catamarans

Solo sailing adventure expedition from Nordkapp (Norway) to Stockholm


https://www.youtube.com/watch?v=lalAhcOdTaQ&feature=emb_logo
Forum: Multihull Sailboats 10-12-2019, 14:22
Replies: 6
Views: 1,494
Posted By emayd
Re: Researching drones based on sailing catamarans

On Xprize project task for drone (D19) was to tug AUW to research area ( about 50 nm from a harbor, release it, support communication via satellite between AUW and shore command center when AUW makes...
Forum: Multihull Sailboats 10-12-2019, 10:08
Replies: 6
Views: 1,494
Posted By emayd
Researching drones based on sailing catamarans

After developed drones for Xprize Open Shell Discovery contest based on our Ducky19, we started new project based on smalest catamaran in our family Ducky13
Forum: Multihull Sailboats 16-08-2018, 10:49
Replies: 6
Views: 2,502
Posted By emayd
Re: Ducky 19R

Ducky 19 as drone. Struggle for 4 million $.

...
Forum: Multihull Sailboats 17-04-2018, 13:28
Replies: 22
Views: 3,581
Posted By emayd
Re: Greenland 2016 on two Ducky-19

.....
Forum: Multihull Sailboats 14-04-2018, 07:23
Replies: 22
Views: 3,581
Posted By emayd
Re: Greenland 2016 on two Ducky-19

All Blui East Two panoramas:

Bluie East Two Airfield Panorama #01 (https://justducky.de/img/greenland/2016/Panoramas/BluieEastTwoAirfieldPanorama_01/Bluie_East_Two_Airfield_Panorama_1.htm)

Bluie...
Forum: Multihull Sailboats 28-03-2018, 22:42
Replies: 22
Views: 3,581
Posted By emayd
Re: Greenland 2016 on two Ducky-19

.....
Forum: Multihull Sailboats 24-03-2018, 08:55
Replies: 22
Views: 3,581
Posted By emayd
Re: Greenland 2016 on two Ducky-19

more pictures
Showing results 1 to 25 of 109
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