Reformed Offlian
Master Poster
I did tell you about Einseln but mysteriously the post was removed.
Only once? Compared to all your prattling about Bildt? Why not use this opportunity to tell me about Einseln now?
I did tell you about Einseln but mysteriously the post was removed.
I did tell you about Einseln but mysteriously the post was removed.
The wave smashed the windows, not the wind.There is a direct relationship between how high the wind is (m/s, mph) and the force of a wave. In addition, it also drives direction, thus a southwesterly wind drives a wave in a southwesterly direction.
The reason the wave smashed through the Hamburg ferry window with such force was because - hello?!!! - Storm Eunice* was currently in progress throughout northern Europe!!!!
The wave didn't come from nowhere!!!
I have been in the North Sea in ferocious weather and have also been adrift in the Baltic, once in a rowing boat…
Which post? Was it this post where you mentioned Einseln and which wasn't mysteriously removed?I did tell you about Einseln but mysteriously the post was removed.
See Alexander Einseln. A US citizen installed in Estonia:
Aleksander Einseln (25 October 1931 – 16 March 2017) was an Estonian general, the Commander of the Estonian Defence Forces from 1993 to 1995 and previously a United States Army colonel.
There is a direct relationship between how high the wind is (m/s, mph) and the force of a wave. In addition, it also drives direction, thus a southwesterly wind drives a wave in a southwesterly direction.
Eh? I thought a southwesterly wind was one blowing from the south west?
"The North wind doth blow, And we shall have snow ..."
Take a minute to reflect why storms at sea (or even inland) are measured in terms of
- wind speed
- direction
Thus if you know windspeed over 25 m/s causes waves to smash a window of a ship, then you, as a designer, ensure your windows are reinforced to withstand wind speeds of 41 m/s , or within 99.9 percent probability range it will never get that high.
Of course water is heavier than air but air acting on water meets a resistance that is proportionate to the power of the wind driving it, thus a windspeed of 40 m/s does not cause a similar speed of 40 m/s in a wave. Sometimes only one parameter is needed (wind speed) for you to know the type of force this will create in a wave.
Wrong. The investigation was initiated by the Swedish Government (Regering), not the Parliament (Riksdag).
Wrong. As can be read in his report, the scope was the month of september 1993.
Wrong. He submitted his report to the Government. As such it's public, and available at Riksarkivets site, as well as Riksdagens site.
Wrong. KSI is part of the Swedish Armed Forces (Försvarsmakten), and that was within his power, and was covered in his investigation. In the report KSI is even mentioned, including the name of the person that was interviewed.
Wrong again. There was an agreement set up between the two government agencies (The Swedish Armed Forces and the Swedish Customs) that described how the transport was to happen, what notifications was necessary, and how the customs could inspect the goods transported.
And wrong. Held accountable for exactly what? What was illegal about it?
Your whole post is just conspiracy ********. Try to read the source material instead of trusting conspiracy authors descriptions of it.
Royally missing the point. It's presumed that some windows will never meet the full force of a wave, i.e. they will only encounter spray.
eta: My garden greenhouse is a good example. It survived the driving rain of storm Eunice but would probably smash or at least get a pane of glass dislodged if I threw a bucketworth of water at it hard enough.
So tell us, oh wise one, what do you calculate is the amount of wave force that windows designed to withstand 41m/s will be able to withstand under the conditions of that the Estonia was sailing in that night?
Thrill us with your acumen.
Now you wish to pretend to know there is a simple, direct relationship between wind speed and wave energy and that the windows were actually designed to withstand both 41m/s winds and the waves that would create.
No. That is a complete invention you just pulled from your backside.
If the bus only had 10 litres of diesel instead of 200 litres, would my windows withstand it?
But it wasn't the wind that broke the windows, it was the waves.
A cubic meter of water weighs a ton. Think of the volume hitting the windows and the velocity of the water.
How does that compare to the wind?
But the wind didn't break the ferry window. We know this because the wind was already blowing against the windows and they weren't breaking.
And I have spent weeks weathering Atlantic storms with the bows of the ship pitching in to waves that came right over the deck and in to the bridge.
Just like this
This is a ship designed to weather a head sea and the force of the waves. But, to do it they slow right down to reduce the force of the impact. Driving at speed into waves increases the pitching which increases the force on the hull.
Here is film of a Destroyer forcing it's way in to the waves to get ahead of the Carrier it is escorting. This isn't even a storm but see how the pitching is increased by forcing in to the waves with too much speed?
Now, imagine the effect in a storm and on a Ferry with short, bluff bows not designed for such things.
EFDThe Swedish Meteorological and Hydrological Institute (SMHI) has investigated the weather conditions met by WASA KING in the Gulf of Bothnia and by ESTONIA in comparison to the wind and wave conditions met by ESTONIA on her last voyage. The result is quoted as follows:
»SMHI have earlier studied and found that m/s ESTONIA the last 1-2 hours during the accident night 27-28 Sept 1994 was exposed of:
* winds: direction S-SW, mean speed of 14-20 m/s
* significant wave height 3.5-4.5 m, with some possible maximum waves of 6.5-7.0 m.
For m/s ESTONIA earlier voyages we have found the similar conditions as follows:
1. Tallinn-Stockholm/Stockholm-Tallinn 02.02.93 - 27.09.94
* Westbound voyages 3 occasions;
- 4/5 Feb. 1993
- 22/22 Jan. 1994
- 5/6 March 1994
* Eastbound voyages 3 occasions (means that winds must be from E-SE-S)
- 15/16 Sept. 1993
- 2/3 Dec. 1993
-19/20 Aug. 1994
2. Vaasa-Umeå/Sundsvall 01.01.91 - 31.01.93
Only one occasion with the similar conditions
- 19/20 Dec. 1992 «
Consequently ESTONIA had encountered similar or worse wind and wave conditions at least 6 times before the casualty in her last trading area, whereby the last time had been only about 5 weeks before the casualty, i.e. at a time when the visor and bow ramp had been in a very bad condition for several months already, as will be explained later on.
The complete SMHI opinion is attached as Enclosure 12.2.139.
The windows in question were never expected to be hit by anything worse than spray, being four decks up and toward the stern. They weren't expected to resist waves pounding against them.
Vixen clings to her windspeed factoid like a lifebelt and seeks a way to make it seem relevant to the situation where the drifting, listing ship put those windows broadside on to the waves. Sadly it's not relevant at all.
I mean, if I had the skills to convert a 41m/s windspeed rating into a static load against those large panes, I could have a go at estimating how deep an immersion they might resist, but I wouldn't even know where to begin with the dynamic loads of pounding waves. The remark upthread about a greenhouse which withstands wind and driving rain but likely wouldn't survive having a bucketful of water thrown at it is a nice comparison.
And what has that got to do with the fact that the windows on the Estonia were broken by waves and not by wind?You are totally not getting it. If the weather forecast in your area tomorrow is >80 mph winds and in the direct path of your green house, you would be well-advised to board it up. Whether the greenhouse glass can break by other means is neither here nor there.
It 's nothing to do with the wind speed. You are just gibbering.
Stop embarrasing yourself.