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Post by Jim on Jun 21, 2023 9:12:11 GMT
200k is small change for some. Price of a small house.
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Post by ‎ on Jun 21, 2023 9:44:33 GMT
You could get quite a nice boat for that sort of money.
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Post by ‎ on Jun 21, 2023 9:47:14 GMT
Even a nice little Cammenga would be within reach.
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Post by Tony Dunkley on Jun 21, 2023 12:28:23 GMT
In fact the bow wave theory was fully investigated by experiment with the Herald's sister-ship, both in deep water and in the relative shallows of the harbour. The results were conclusive. You don''t come anywhere near even beginning to understand the subject. What, precisely do you mean by - ". . . the bow wave theory was fully investigated by experiment" ? Do you know how or why flattish bottomed slow displacement vessels dive or squat, . . or the circumstances and conditions that can cause it to happen very quickly and without warning ?
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Post by dinky on Jun 21, 2023 12:36:14 GMT
In fact the bow wave theory was fully investigated by experiment with the Herald's sister-ship, both in deep water and in the relative shallows of the harbour. The results were conclusive. You don''t come anywhere near even beginning to understand the subject. What, precisely do you mean by - ". . . the bow wave theory was fully investigated by experiment" ? Do you know how or why flattish bottomed slow displacement vessels dive or squat, . . or the circumstances and conditions that can cause it to happen very quickly and without warning ? Perhaps you could show us how the theory works? Oh no. Wait. You would need a boat to do that.............................
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Post by Jim on Jun 21, 2023 12:56:39 GMT
In fact the bow wave theory was fully investigated by experiment with the Herald's sister-ship, both in deep water and in the relative shallows of the harbour. The results were conclusive. You don''t come anywhere near even beginning to understand the subject. What, precisely do you mean by - ". . . the bow wave theory was fully investigated by experiment" ? Do you know how or why flattish bottomed slow displacement vessels dive or squat, . . or the circumstances and conditions that can cause it to happen very quickly and without warning ?  please sir, please sir , I know, I know... The squat effect is the hydrodynamic phenomenon by which a vessel moving through shallow water creates an area of reduced pressure that causes the ship to increase its draft and thereby be closer to the seabed than would otherwise be expected. This phenomenon is caused by the water flow which accelerates as it passes between the hull and the seabed in confined waters, the increase in water velocity causing a resultant reduction in pressure. Squat effect from a combination of vertical sinkage and a change of trim may cause the vessel to dip towards the stern or towards the bow. This is understood to be a function of the Block coefficient of the vessel concerned, finer lined vessels Cb <0.7 squatting by the stern and vessels with a Cb >0.7 squatting by the head or bow. [1] Squat hydrodynamic phenomena-tag.svg Squat effect is approximately proportional to the square of the speed of the ship. Thus, by reducing speed by half, the squat effect is reduced by a factor of four.[2] Squat effect is usually felt more when the depth/draft ratio is less than four[2] or when sailing close to a bank. It can lead to unexpected groundings and handling difficulties. There are indications of squat which mariners and ship pilots should be aware of such as vibration, poor helm response, shearing off course, change of trim and a change in wash. It was a cause of the 7 August 1992 grounding of the Queen Elizabeth 2 (QE2) off Cuttyhunk Island, near Martha's Vineyard. The liner's speed at the time was 24 knots (12 m/s) and the draft was 32 feet (9.8 m). The rock upon which the vessel grounded was an uncharted shoal later determined to be 34.5 feet (10.5 m), which should have given her room to spare, were it not for the "squat effect."[3] U.S. National Transportation Safety Board investigators found that the QE2's officers significantly underestimated the amount the increase in speed would increase the ship's squat. The officers allowed for 2 feet (0.61 m) of squat in their calculations, but the NTSB concluded that squat at that speed and depth would have been between 4.5 and 8 feet (1.4 and 2.4 m).[4] Squat is also mentioned as a factor in the collision of the bulk carriers Tecam Sea and Federal Fuji in the port of Sorel, Quebec, in April 2000.[1] The third largest cruise ship in the world, MS Oasis of the Seas, used this effect to obtain an extra margin of clearance between the vessel and the Great Belt bridge, Denmark, 1 November 2009, on a voyage from the shipyard in Turku, Finland to Florida, USA.[5] The new cruise liner passed under the bridge at 20 knots (37 km/h) in the shallow channel, giving the ship extra clearance due to a 30 cm squat
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Post by Jim on Jun 21, 2023 13:01:26 GMT
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Post by ‎ on Jun 21, 2023 13:36:40 GMT
There is a new lubricant product coming out for ultracrepidarians.
Its called Expert-Ease.
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Post by Jim on Jun 21, 2023 15:34:17 GMT
There is a new lubricant product coming out for ultracrepidarians. Its called Expert-Ease. Does it have a gentle culling effect? Just what we need in this hot weather.
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Post by ‎ on Jun 21, 2023 15:37:06 GMT
Quite an interesting graph. Presumably the sub will have heating. I suppose 5 persons in a small space generate some heat but it seems the cold would get in.
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Post by Mr Stabby on Jun 21, 2023 16:17:37 GMT
Can't believe this submersible doesn't have some type of distress beacon. I know it used to "ping" every so often during the descent and this pinging stopped, but surely there ought to be back-up systems in place. From what I've read the oxygen supply will be depleted tomorrow, although I've persoanally always thought that it imploded from the outset.
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Post by ‎ on Jun 21, 2023 16:35:57 GMT
It seems likely there was a catastrophic hull failure as you say. Just another few bodies for the graveyard and some man made debris to add to the interest.
Actually what happens to bodies in such deep water? Do they get crushed into a small piece or what.
I imagine over time and for a number of different reasons the fish have them but if they are encased in a flooded cylinder that far down one wonders what the actual status would be.
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Post by ‎ on Jun 21, 2023 16:38:36 GMT
Looking at pictures of the launch vehicle thing there are a number of different ways in which a minor error during the launch procedure could cause critical damage.
The Challenger rocket had an unscheduled disassembly because of something silly like an o-ring.
It could have been a similar story with this dodgy submarine contraption.
It does seem odd that there is no distress flare or tether system.
Maybe they were all suicidal and it was organised.
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Post by ‎ on Jun 21, 2023 16:41:15 GMT
"the most unusual place to die" competition. People would pay good money.
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Post by ‎ on Jun 21, 2023 16:43:07 GMT
They may have had dodgy lithium cobalt batteries in there. Fire would probably take out electronics and of course gobble up all the oxygen really quickly.
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