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Author Topic: First post 3Y0J presentation  (Read 797 times)

WA2VUY

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First post 3Y0J presentation
« on: March 13, 2023, 04:30:42 PM »

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K5MO

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Re: First post 3Y0J presentation
« Reply #1 on: March 15, 2023, 06:32:23 AM »

That was interesting, thank you.

The inventory of equipment they packed was staggering.

John K5MO
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KD8MJR

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Re: First post 3Y0J presentation
« Reply #2 on: March 15, 2023, 04:23:50 PM »

BTW those Generators they planned to use was were four Hyundai DHY6000LEK generators
They are not 250 lbs but 330 Lbs each in weight.  I am still puzzled about how they were going to get them in and off of the Zodiacs without a small crane.
 
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K5GS

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Re: First post 3Y0J presentation
« Reply #3 on: March 15, 2023, 05:06:55 PM »

BTW those Generators they planned to use was were four Hyundai DHY6000LEK generators
They are not 250 lbs but 330 Lbs each in weight.  I am still puzzled about how they were going to get them in and off of the Zodiacs without a small crane.
 

118kg
260 pounds +/- a few.
https://intermaquinas.online/en/producto/generador-electrico-hyundai-dhy6000lek/

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KC0W

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Re: First post 3Y0J presentation
« Reply #4 on: March 15, 2023, 07:07:32 PM »

I am still puzzled about how they were going to get them in and off of the Zodiacs without a small crane.

 I'm more interested in how they planned on getting TONS of other gear up a mountain of ice & snow?

                                                               Tom KH0/KC0W
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K1VSK

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Re: First post 3Y0J presentation
« Reply #5 on: March 15, 2023, 07:12:33 PM »

I am still puzzled about how they were going to get them in and off of the Zodiacs without a small crane.

 I'm more interested in how they planned on getting TONS of other gear up a mountain of ice & snow?

                                                               Tom KH0/KC0W
My understanding is they never planned to go to the top of the island.
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KD8MJR

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Re: First post 3Y0J presentation
« Reply #6 on: March 15, 2023, 07:19:05 PM »

BTW those Generators they planned to use was were four Hyundai DHY6000LEK generators
They are not 250 lbs but 330 Lbs each in weight.  I am still puzzled about how they were going to get them in and off of the Zodiacs without a small crane.
 

118kg
260 pounds +/- a few.
https://intermaquinas.online/en/producto/generador-electrico-hyundai-dhy6000lek/

Your right!  I must have been looking at the wrong model.
Even at 260lb I don't see that being lifted on a rolling boat and handed off into a bouncing Zodiac.
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KB2FCV

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Re: First post 3Y0J presentation
« Reply #7 on: March 15, 2023, 07:25:04 PM »

BTW those Generators they planned to use was were four Hyundai DHY6000LEK generators
They are not 250 lbs but 330 Lbs each in weight.  I am still puzzled about how they were going to get them in and off of the Zodiacs without a small crane.
 

118kg
260 pounds +/- a few.
https://intermaquinas.online/en/producto/generador-electrico-hyundai-dhy6000lek/

Your right!  I must have been looking at the wrong model.
Even at 260lb I don't see that being lifted on a rolling boat and handed off into a bouncing Zodiac.


I imagine they had some sort of plan to get them on/off the boat to/from the zodiacs... Maybe the sail boat had some sort of small crane / hoist / lift ? I guess once they got to the island and their original plan to land on the island worked then 4 guys should be able to handle them somewhat. But.. yeah... the weather / conditions had other plans.

Interesting presentation to watch! Thanks for sharing the link. I look forward to watching more as they come out.
« Last Edit: March 15, 2023, 07:31:44 PM by KB2FCV »
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KD8MJR

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Re: First post 3Y0J presentation
« Reply #8 on: March 15, 2023, 07:29:41 PM »

My understanding is they never planned to go to the top of the island.

I think your right but looking at those Diagrams it looks like they planned on building a small city.  Even with good Bouvet weather it would have taken several days to get all that stuff over and setup.
I wonder what would have happened if they had gotten it all over there and then the Zodiac got punctured.  How would they have gotten it off the Island?


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LA7GIA

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Re: First post 3Y0J presentation
« Reply #9 on: March 15, 2023, 11:08:02 PM »

Because we already knew that the weather could be bad (lesson learned from 3Y0Z and 3Y0I) we had taken the gear and split it into 4 steps. This had been communicated long time before we went, and is also displayed on our website  with diagrams. Despite we had a lot of gear, we had wisely already planned for not being able to bring everything to the camp! The weight of equipment for Step 1 was 1500 kg + 300 liter  of fuel.  We did not plan to carry this into the camp, but install a gasoline driven WINCH system - all this explained on our facebook page: 3xK3 radios ( 13 kg), 2 amplifiers (30 kg), 2 antenna skibags (30 kg), 1 generator (108 kg), 2xtents (60 kg), winch system (200 kg) ++ you will see that when you go camping on the most remote island there is a lot of additional stuff you have to bring in addition to the radio gear.

What we ended up deploying at 3Y0J was a modified version of the step 1 to further reduce the weight so we were 110% sure to make it within the UNKNOWN duration of the upcoming WX window! We did not want to start transporting 1500 kg prior to an upcoming storm, just to find out we only managed to bring half of it onshore, with the rest of the equipment on the vessel or on the beach. We know that weather changes quickly at Bouvet. There is a lot of evaluations and decisions you have to make, and what seems easy on paper or in the comfort of you chairs at home, will soon be differently when you are at Bouvet and face the reality in cold conditions. The reality is strong wind and sometimes waves taller than yourself. Due to the thorough risk assessment we did end up on roughly 650 kg. So each person would have to carry 80 kg. We removed gear that we did not need, like the winch system, the tables and chairs. This was in spirit of our ancestors that also went to Bouvet, they did not either sit on a chair and have a table! This was absolutely no problem at all for us. We did not heat the tent either because it was really not needed
« Last Edit: March 15, 2023, 11:23:53 PM by LA7GIA »
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N1UR

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Re: First post 3Y0J presentation
« Reply #10 on: March 16, 2023, 04:03:03 AM »

Thanks for the clarifications Ken.

In the end, it seems the 2 things that could not be broken down into smaller carryable chunks were the 100kg+ generators and the very heavy winch system.  Once those 2 things were in question, the original plans, even step 1, really kind of went out the window.

I just have to wonder how the lack of infrastructure on the sailboat started compromises in things like the Zodiacs and hoists needed to safely load.  I got you there safely and helped the budget, but was it too much of a compromise at the logistical transfer and load carrying end to ultimately be successful.

Ed  N1UR
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KE8KMX

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Re: First post 3Y0J presentation
« Reply #11 on: March 16, 2023, 04:08:43 AM »

My understanding is they never planned to go to the top of the island.

I think your right but looking at those Diagrams it looks like they planned on building a small city.  Even with good Bouvet weather it would have taken several days weeks to get all that stuff over and setup.
I wonder what would have happened if they had gotten it all over there and then the Zodiac got punctured.  How would they have gotten it off the Island?


There I fixed it for you.   Watching the presentation it was stated that it took two days just to load all the stuff from solid ground to the achored to dock sailboat. THey used a forklift and the dock had a crane.  If they were able to land the zodiacks safely and had good weather every day I think they would be just now finishing up step four. 


Gino - KE8KMX
« Last Edit: March 16, 2023, 04:14:00 AM by KE8KMX »
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VK3YP

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Re: First post 3Y0J presentation
« Reply #12 on: March 16, 2023, 04:45:55 AM »

With such a known difficult landing requiring bare minimum equipment I still don’t understand who and why specified so much heavy equipment and such enormous diesel generators.

What sunk this dxpedition was the lack of small petrol powered 2kv generators. They only had one Honda 2kv petrol generator and that’s all they could get onshore.
They packed up and left 10 days early because they had no more petrol left for the single Honda petrol generator.
Who on earth came up with 6kv Hyundai diesel generators at 120kg+ each.
This could have been a successful 50,000 to 100,000 QSO operation if they took a lightweight approach and could have setup at least 3 stations with amplifiers if they went light and took small petrol generators (for each station).
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KE8KMX

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Re: First post 3Y0J presentation
« Reply #13 on: March 16, 2023, 05:13:15 AM »

With such a known difficult landing requiring bare minimum equipment I still don’t understand who and why specified so much heavy equipment and such enormous diesel generators.

What sunk this dxpedition was the lack of small petrol powered 2kv generators. They only had one Honda 2kv petrol generator and that’s all they could get onshore.
They packed up and left 10 days early because they had no more petrol left for the single Honda petrol generator.
Who on earth came up with 6kv Hyundai diesel generators at 120kg+ each.
This could have been a successful 50,000 to 100,000 QSO operation if they took a lightweight approach and could have setup at least 3 stations with amplifiers if they went light and took small petrol generators (for each station).


1500W amps require 220V which equals large, heavy gensets.      I have several generators.  One is a 47pound invertor 2kW similar in size and weight to the Honda they had.  Easy to carry in one hand by one person.    I have used it to run my IC7300, power supply, Elecraft KPA500 500w amp and a desktop PC with two monitors.   The KPA500 can run on 110V, weighs 26 pounds and even has a carry handle on the side. Its the same size as the IC7300.  I have noticed it is often the amp that gets taken on DXpeditions. 

Gino
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K1VSK

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Re: First post 3Y0J presentation
« Reply #14 on: March 16, 2023, 06:26:10 AM »



I just have to wonder how the lack of infrastructure on the sailboat started compromises in things like the Zodiacs and hoists needed to safely load.

Ed  N1UR

All sailboats have winches, mostly powered winches, and even a single stick sailboat has one long boom which can be used for hoisting equipment.
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