Before asking a question about navigation and a question about modeling I wanted to explain why Doug's answer to the question about the color of the bear was correct.
The question from the distant message nr. 4184 was this:
An explorer, after setting up his tent, sets off on a mission. He first travels five kilometers south, then, relying on his compass, he travels another five kilometers east.
But he still wants to explore and changes course again, this time the five kilometers are north and to his great surprise he discovers that he's back where he started. He sees his tent and a bear rummaging around in it.
The question is:
WHAT COLOR IS THE BEAR.
The only place where going south then east then north brings you back to where you started (Traveling the same distances) is the North Pole.
Before giving any more detailed explanations just look at the figure to understand.
The meridians cross in two points. It would be the same at the South Pole too, but there are no bears there.
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Before asking a question about navigation and a question about modeling I wanted to explain why Doug's answer to the question about the color of the bear was correct.
The question from the distant message nr. 4184 was this:
An explorer, after setting up his tent, sets off on a mission. He first travels five kilometers south, then, relying on his compass, he travels another five kilometers east.
But he still wants to explore and changes course again, this time the five kilometers are north and to his great surprise he discovers that he's back where he started. He sees his tent and a bear rummaging around in it.
The question is:
WHAT COLOR IS THE BEAR.
The only place where going south then east then north brings you back to where you started (Traveling the same distances) is the North Pole.
Before giving any more detailed explanations just look at the figure to understand.
The meridians cross in two points. It would be the same at the South Pole too, but there are no bears there.
Great Nick, you also brought us back to naval modeling.
Great question, very good.
I had no doubts about who would definitely answer first: Doug.
Very knowledgeable on these topics.
I wanted to make a clarification on this matter but it is better that I abstain because I could be misunderstood.
More questions of this kind will be very useful to everyone.
Great Nick, you also brought us back to naval modeling.
Great question, very good.
I had no doubts about who would definitely answer first: Doug.
Very knowledgeable on these topics.
I wanted to make a clarification on this matter but it is better that I abstain because I could be misunderstood.
More questions of this kind will be very useful to everyone.
Pat, the pace has become relentless, from one question a day we have gone to three questions a day. It is no longer a game but a profession, ahahahahah.
I'm joking, the questions about sailing and maneuvering were very interesting but if you want the whole world to read and answer the questions you have to give them more time, at least twenty-four hours.
I'm sorry if I was not able to participate as actively as I would have liked but on the specific terms of sailing there are too many difficulties with the normal translators (I'm not up to the task).
Unfortunately I didn't have time today.
Anyway I learned two new terms in English that I didn't know thanks to you: "Square Rigger" and "Box Hauling".
You should make a small summary glossary in the appropriate section of this site, because in the thousands of messages on the forum this information will get lost.
Pat, the pace has become relentless, from one question a day we have gone to three questions a day. It is no longer a game but a profession, ahahahahah.
I'm joking, the questions about sailing and maneuvering were very interesting but if you want the whole world to read and answer the questions you have to give them more time, at least twenty-four hours.
I'm sorry if I was not able to participate as actively as I would have liked but on the specific terms of sailing there are too many difficulties with the normal translators (I'm not up to the task).
Unfortunately I didn't have time today.
Anyway I learned two new terms in English that I didn't know thanks to you: "Square Rigger" and "Box Hauling".
You should make a small summary glossary in the appropriate section of this site, because in the thousands of messages on the forum this information will get lost.
One for the navigators and cartographers
In the 1970’s an 80’s there was a navigation system that had a receiver normally located on the bridge or in the chartroom before the days of Satnav
The charts of the day had had hyperbolic lines on them that crossed - there were three colours each responding to the colour of a dial on the receiver sing the values from the receiver you could plot you position on the chart
Anyone remember what the name of the system was ?
In the 1970’s an 80’s there was a navigation system that had a receiver normally located on the bridge or in the chartroom before the days of Satnav
The charts of the day had had hyperbolic lines on them that crossed - there were three colours each responding to the colour of a dial on the receiver sing the values from the receiver you could plot you position on the chart
Anyone remember what the name of the system was ?
One for the sailors...
"You're close-hauled on the port tack, beating up the channel with a north-easterly wind blowing strong, with Dover bearing north two miles. The wind veers four points, taking you flat aback. What do you do, sir?"
One for the sailors...
"You're close-hauled on the port tack, beating up the channel with a north-easterly wind blowing strong, with Dover bearing north two miles. The wind veers four points, taking you flat aback. What do you do, sir?"
Nice one Pat. I didn't notice it was a down wind sail. As my teacher always said "Martin should pay more attention" 😀 It was on most of my early school reports..
Nice one Pat. I didn't notice it was a down wind sail. As my teacher always said "Martin should pay more attention" 😀 It was on most of my early school reports..
No Pat.
Before you even reach for any switches, install batteries, or even bind the RX, the precaution Nick means is taken at the fitting out stage of the electrics (wiring)-
MAKE SURE ONLY ONE OF THE BECs IS CONNECTED TO THE RECEIVER!
Cut the Red lead (BEC + supply to RX) from one of the ESCs and isolate it, or pull the pin out of the plug and tape it back.
Otherwise the two BEC voltages will be connected together.
Which can damage either RX or ESCs or both.
Cheers, Doug😎
PS If you have a separate battery for the receiver then you MUST cut both of the Red leads from the ESCs.
No Pat.
Before you even reach for any switches, install batteries, or even bind the RX, the precaution Nick means is taken at the fitting out stage of the electrics (wiring)-
MAKE SURE ONLY ONE OF THE BECs IS CONNECTED TO THE RECEIVER!
Cut the Red lead (BEC + supply to RX) from one of the ESCs and isolate it, or pull the pin out of the plug and tape it back.
Otherwise the two BEC voltages will be connected together.
Which can damage either RX or ESCs or both.
Cheers, Doug😎
PS If you have a separate battery for the receiver then you MUST cut both of the Red leads from the ESCs.
Young at heart 😉 Slightly older in other places.😊 Cheers Doug
Sorry Shipmates just got home from a medical appointment
The correct answer to my questions are as follows:-
The triangular sail as shown in the picture is called a Raffee
Doing a three point turn in a Square Rigger is called Box Hauling
Pat
Well Pat. I will have another go. Could it be a: fore gaff topsail, also called a jib-headed topsail, or maybe a standing gaff topsail (Shoulder of mutton) 😁 A Lug Sail?
Well Pat. I will have another go. Could it be a: fore gaff topsail, also called a jib-headed topsail, or maybe a standing gaff topsail (Shoulder of mutton) 😁 A Lug Sail?
Nick and SSailor a picture attached just to clarify
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In answer to Pat's question. Could it be the Main Gaff Topsail ?
"My first question of the day:-
On big sailing ships most notably topsail schooners and t'gallent schooners what is the name of to triangular sail that has it's foot on the uppermost yard and comes to a point at the mast head"
In answer to Pat's question. Could it be the Main Gaff Topsail ?
"My first question of the day:-
On big sailing ships most notably topsail schooners and t'gallent schooners what is the name of to triangular sail that has it's foot on the uppermost yard and comes to a point at the mast head"
Hi Mike, the Flinders bar is a soft iron bar that serves to counteract the horizontal effect of vertical magnetism.
For more details and to see how it is made and where it is located I attach some photos and some links.
https://en.m.wikipedia.org/wiki/Flinders_bar
https://auth.scribd.com/u/signup?state=hKFo2SBFZ2FwODBySGRQVW55ZDJCYmxUUmJvTDZtX2EtcW9RbaFur3VuaXZlcnNhbC1sb2dpbqN0aWTZIEVUM3lJdTlna2tHYVAtcXlITDZuMG9EQXRMZXlmUDBjo2NpZNkgZ3ljN3lyZnpzdkpmaXd5bHNlYXU4Y3g5dVZhb2FOU1A&ui_locales=it
https://en.m.wikipedia.org/wiki/Flinders_bar https://auth.scribd.com/u/signup?state=hKFo2SBFZ2FwODBySGRQVW55ZDJCYmxUUmJvTDZtX2EtcW9RbaFur3VuaXZlcnNhbC1sb2dpbqN0aWTZIEVUM3lJdTlna2tHYVAtcXlITDZuMG9EQXRMZXlmUDBjo2NpZNkgZ3ljN3lyZnpzdkpmaXd5bHNlYXU4Y3g5dVZhb2FOU1A&ui_locales=it
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Hi Mike, the Flinders bar is a soft iron bar that serves to counteract the horizontal effect of vertical magnetism.
For more details and to see how it is made and where it is located I attach some photos and some links.
Second question
In large Square Rigged ships it is well known that a lot of sea room is required to either Tack Ship or Wear Ship.
What is the manoeuvre called that allows a large square rigged ship to change tack with limited sea room - I guess the equivalent of doing a 3 point turn on a road ?
In large Square Rigged ships it is well known that a lot of sea room is required to either Tack Ship or Wear Ship.
What is the manoeuvre called that allows a large square rigged ship to change tack with limited sea room - I guess the equivalent of doing a 3 point turn on a road ?
My first question of the day:-
On big sailing ships most notably topsail schooners and t'gallent schooners what is the name of to triangular sail that has it's foot on the uppermost yard and comes to a point at the mast head
On big sailing ships most notably topsail schooners and t'gallent schooners what is the name of to triangular sail that has it's foot on the uppermost yard and comes to a point at the mast head
I guessed Flinders bar as I used to help out with swinging the compass for aircraft while I was in the RAF.
Never heard of the other so I looked them up in Wikipedia and it says that Kelvins spheres or balls are also known as Quadralantral correctors.
Seems AI was not aware of that!
Roy
I guessed Flinders bar as I used to help out with swinging the compass for aircraft while I was in the RAF.
Never heard of the other so I looked them up in Wikipedia and it says that Kelvins spheres or balls are also known as Quadralantral correctors.
Seems AI was not aware of that!
Roy
Artificial intelligence has oriented itself (perhaps thanks to a brilliant human mind that controls and manages it) towards a topic that we had started to discuss just yesterday.
It is a very interesting topic, even if quite specific, of nautical science.
I am very happy that the questions are increasingly pertinent and the answers precise.
The topic of magnetic deviation and the corrections that are made to mitigate them is, in my opinion, fascinating and useful.
I am not an expert but I know that, in recreational boating, the compensatory expert makes compass turns (at sea in an area called a polygon) and notes the deviations. He corrects them by acting directly on the compass and based on known references.
Then note the residual deviations (which must remain within certain limits) on a table. This table will be consulted by the commander of the naval unit to change the compass north to magnetic north, algebraically adding the degrees of deviation to those detected by his compass. Each compass has its own table of residual magnetic deviations. If there were more than one compass on board, each one has its own table because the positions of the compasses are different.
I am also interested in it from a modeling point of view. In fact, I will have to build a compass.
I am looking at several photos of the time.
I prefer to build the pieces knowing the function of each element (for example the typical lateral spheres) rather than proceed blindly.
Even if it will be difficult in 1/60 scale, I will try to build the compass with the detail of the mortar, the binnacle, the Flinders bar and the Thomson spheres.
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Artificial intelligence has oriented itself (perhaps thanks to a brilliant human mind that controls and manages it) towards a topic that we had started to discuss just yesterday.
It is a very interesting topic, even if quite specific, of nautical science.
I am very happy that the questions are increasingly pertinent and the answers precise.
The topic of magnetic deviation and the corrections that are made to mitigate them is, in my opinion, fascinating and useful.
I am not an expert but I know that, in recreational boating, the compensatory expert makes compass turns (at sea in an area called a polygon) and notes the deviations. He corrects them by acting directly on the compass and based on known references.
Then note the residual deviations (which must remain within certain limits) on a table. This table will be consulted by the commander of the naval unit to change the compass north to magnetic north, algebraically adding the degrees of deviation to those detected by his compass. Each compass has its own table of residual magnetic deviations. If there were more than one compass on board, each one has its own table because the positions of the compasses are different.
I am also interested in it from a modeling point of view. In fact, I will have to build a compass.
I am looking at several photos of the time.
I prefer to build the pieces knowing the function of each element (for example the typical lateral spheres) rather than proceed blindly.
Even if it will be difficult in 1/60 scale, I will try to build the compass with the detail of the mortar, the binnacle, the Flinders bar and the Thomson spheres.
I missed Pat's question yesterday but I have learned of a new term "Spanker" I didn't want to google it just in case the Google police came round and arrested me 😂
I missed Pat's question yesterday but I have learned of a new term "Spanker" I didn't want to google it just in case the Google police came round and arrested me 😂
Is it not secured to the Bitts? I agree anchor rope.
Just walked in, tired, spent all day on the Severn River Valley railway. Good weather and good company not a boat in sight!
You lot have been chatting away, 71 emails waiting for me.
Roy
Is it not secured to the Bitts? I agree anchor rope.
Just walked in, tired, spent all day on the Severn River Valley railway. Good weather and good company not a boat in sight!
You lot have been chatting away, 71 emails waiting for me.
Roy
Bitter end is the very end if a rope but more correctly it’s the end of the anchor cable when they were made of rope rather than chain where it is secured in the cable locker
Bitter end is the very end if a rope but more correctly it’s the end of the anchor cable when they were made of rope rather than chain where it is secured in the cable locker
Manovering under sail taking the stern of the ship yatch or dinghy is in fact called gybing in small boat sailing
However, the correct term is call wearing ship !!
The purists will say a gybe is an uncontrolled wear.
First time I came across this term was when sailing a montegue whaler many many years ago
Manovering under sail taking the stern of the ship yatch or dinghy is in fact called gybing in small boat sailing
However, the correct term is call wearing ship !!
The purists will say a gybe is an uncontrolled wear.
First time I came across this term was when sailing a montegue whaler many many years ago
