"Richard Smith" wrote in message news:ly7d3vqcvf.fsf@void.com...
...
If it's so hard to determine now, how could the Captain have known
that the tide and current on the east side would be favorable?
...
"Richard Smith" wrote in message news:ly7d3vqcvf.fsf@void.com...
...
If it's so hard to determine now, how could the Captain have known
that the tide and current on the east side would be favorable?
...
"Richard Smith" wrote in message news:ly8rnynwxa.fsf@void.com...
"Jim Wilkins" <muratlanne@gmail.com> writes:
"Richard Smith" wrote in message news:ly7d3vqcvf.fsf@void.com...
...
If it's so hard to determine now, how could the Captain have known
that the tide and current on the east side would be favorable?
...
There are tide tables for the coming year.
Nautical almanacs have them.
These would have been available, no two ways about it.
The story is about whether the Captain deliberately intended to use
those favourable currents to get faster past the Isles of Scilly on
the forbidden inside narrow East channel.
The problem I mentioned was knowing exactly what the tide was doing at
a specific time on a day over 55 years ago. When there is no
accessible record. Tide tables are for prediction. When the year is
ended they go with the waste paper.
I managed to reconstruct what the tide table would have shown from the
raw tide gauge numbers for that day.
Except that being the tide that was, not the astronomical prediction.
But that would have only had a fraction of a metre and minutes of
difference to the astronomical prediction the Captain, Navigation
Officer and so on would have seen.
That much earlier wrecking on the Isles of Scilly - that lead to the
forming of the Board of Longitude
https://en.wikipedia.org/wiki/Board_of_Longitude
and the offering of the prize for solving the Longitude problem - how
to know in some accurate way how far around the World you are.
Regards,
Rich Smith
So he would/should have had a paper version of this, but they weren't
saved back then? https://www.tide-forecast.com/locations/Saint-Marys-Isles-Of-Scilly-England/tides/latest
https://britishheritage.com/history/newlyn-tidal-observatory
Your theory sounds like it's worth investigating. Were other ships
similarly blown off course at the time? If so, would they admit it?
Titanic's wreck was found 13 miles east of their distress call position.
...
... Were other ships similarly blown off course at the time? If so,
would they admit it? ...
Titanic's wreck was found 13 miles east of their distress call
position.
... Were other ships similarly blown off course at the time? If so,
would they admit it? ...
Titanic's wreck was found 13 miles east of their distress call
position.
... Were other ships similarly blown off course at the time? If so,
would they admit it? ...
"Richard Smith" wrote in message news:lyo7wrn817.fsf@void.com...
If you add layers of "safety systems", each one of these could
generate its own lethal malfunction or confluence-of-events disaster.
Sometimes - keep things simple, know how everything works, have
trained and mentored people present and be aware of the hazards /
risks.
-------------------
I know that well, and am glad I could leave safety compliance to the degreed >engineers. The problem is that if you cover every possibility the manual is >4" thick. An airliner flew into the ground while the crew was occupied with >diagnosing an indicator malfunction. >https://en.wikipedia.org/wiki/Eastern_Air_Lines_Flight_401
The Boeing 737's MCAS that caused two fatal loss of control crashes was an >added safety system that proved susceptible to sensor failures. Airbus is >reputedly worse, I mentioned the stall warning that brought down an
airliner. There was a joke that the cockpit of the future would contain a
man and a dog. The man's job was to feed the dog, the dog's to bite him if
he touched the controls.
Machines we built for auto factories had to have all internal wiring run >through grounded conduit, so when a union forklift driver "accidentally" >jabbed the forks into it, the conduit would ground the severed wires and
trip the breaker or GFI. I salvaged a fair amount of bruised but still >serviceable electronics for hobby use from rebuilding machines damaged by a >forklift.
"Richard Smith" wrote in message news:lyo7wrn817.fsf@void.com...
"Richard Smith" wrote in message news:ly5yif3vbg.fsf@void.com...
...
... with neo-Nazi hard-liners who claimed they could have won if
only things had gone a little differently. ...
... the wartime total explosives weight delivered by the V1 and V2
amounted to one day and night of Allied bombing. ...
For instance German aircraft designer Alexander Lippisch created
advanced late-war designs, paper airplanes, that supposedly could have
won them the war if it had lasted into 1946.
... He finally had his chance
to create a metal jet plane in the American F-102, which proved to be
a miserable failure. ...
Another example is British HF/DF, Huff-Duff, which could determine the
direction to a U-Boot radio transmission in its first milliSecond
without rotating the antenna. The Germans had created a transmitter
that compressed a message into a 50 milliSecond burst ...
"Richard Smith" wrote in message news:ly5yif3vbg.fsf@void.com...
...
... with neo-Nazi hard-liners who claimed they could have won if
only things had gone a little differently. ...
... the wartime total explosives weight delivered by the V1 and V2
amounted to one day and night of Allied bombing. ...
Another example is British HF/DF, Huff-Duff, which could determine the
direction to a U-Boot radio transmission in its first milliSecond
without rotating the antenna. The Germans had created a transmitter
that compressed a message into a 50 milliSecond burst ...
[[ Our forces in New Guinea where my father served were masters of innovation.
https://en.wikipedia.org/wiki/Paul_Gunn
General Kenney was an engineer and inventor himself who contributed
...
[[ R. V. Jones' book "The Wizard War" is a gold mine on that
subject. He wrote that unknown transmissions could be characterized as
German by their much tighter crystal-controlled frequency stability,
which only expensive British lab equipment could equal. Britain turned
to America for top quality radio gear in quantity, since your designs required tedious careful tuning by scarce expert technicians. ]]
[[ Our forces in New Guinea where my father served were masters of innovation.
https://en.wikipedia.org/wiki/Paul_Gunn
General Kenney was an engineer and inventor himself who contributed
...
[[ R. V. Jones' book "The Wizard War" is a gold mine on that
subject. He wrote that unknown transmissions could be characterized as
German by their much tighter crystal-controlled frequency stability,
which only expensive British lab equipment could equal. Britain turned
to America for top quality radio gear in quantity, since your designs required tedious careful tuning by scarce expert technicians. ]]
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