|
My seamanship question #1
A little sailboat with no motor is on the starboard tack catching up with another
little sailboat with no motor on the starboard tack. The one catching up is going on a course of 180 degrees. The one getting caught is going 208 degrees. Which one has to change course if it looks like they're going to hit each other? Cheers, Ellen |
My seamanship question #1
Ellen MacArthur wrote: A little sailboat with no motor is on the starboard tack catching up with another little sailboat with no motor on the starboard tack. The one catching up is going on a course of 180 degrees. The one getting caught is going 208 degrees. Which one has to change course if it looks like they're going to hit each other? Cheers, Ellen 180 is the overtaking vessel, therefore has to give way if needed. joe |
My seamanship question #1
Ellen MacArthur wrote:
A little sailboat with no motor is on the starboard tack catching up with another little sailboat with no motor on the starboard tack. The one catching up is going on a course of 180 degrees. The one getting caught is going 208 degrees. Which one has to change course if it looks like they're going to hit each other? Cheers, Ellen Depends on the speed of each.... |
My seamanship question #1
"Joe" wrote | 180 is the overtaking vessel, therefore has to give way if needed. Wrong! Do I have to give you three guesses? Hee hee! Cheers, Ellen |
My seamanship question #1
That's not worth an ASA point.
-- "j" ganz @@ www.sailnow.com "Ellen MacArthur" wrote in message reenews.net... A little sailboat with no motor is on the starboard tack catching up with another little sailboat with no motor on the starboard tack. The one catching up is going on a course of 180 degrees. The one getting caught is going 208 degrees. Which one has to change course if it looks like they're going to hit each other? Cheers, Ellen |
My seamanship question #1
Joe wrote:
Ellen MacArthur wrote: A little sailboat with no motor is on the starboard tack catching up with another little sailboat with no motor on the starboard tack. The one catching up is going on a course of 180 degrees. The one getting caught is going 208 degrees. Which one has to change course if it looks like they're going to hit each other? Cheers, Ellen 180 is the overtaking vessel, therefore has to give way if needed. joe May never be needed...if their speeds are such that one bypasses the other completely.... |
My seamanship question #1
"katy" wrote | Depends on the speed of each.... No. It has nothing to do with speed. Try again. Your tied with Joe. Cheers, Ellen |
My seamanship question #1
How do you figure? If one boat is being overtaken, in this scenario, that's
pretty much the end of the story. Speed isn't an issue. -- "j" ganz @@ www.sailnow.com "katy" wrote in message ... Ellen MacArthur wrote: A little sailboat with no motor is on the starboard tack catching up with another little sailboat with no motor on the starboard tack. The one catching up is going on a course of 180 degrees. The one getting caught is going 208 degrees. Which one has to change course if it looks like they're going to hit each other? Cheers, Ellen Depends on the speed of each.... |
My seamanship question #1
"katy" wrote | May never be needed...if their speeds are such that one bypasses the | other completely.... Good try but I said if it looks like they're gonna hit each other. You have one more guess... Cheers, Ellen |
My seamanship question #1
"Capt. JG" wrote | That's not worth an ASA point. How come? You got it wrong too when in your other post you talked about one of the boats being overtaken. I see you people need a hint: Subtract the angles. Does the result fit the definition of overtake? Cheers, Ellen |
My seamanship question #1
On Tue, 12 Sep 2006 18:22:55 -0400, "Ellen MacArthur"
wrote: "Capt. JG" wrote | That's not worth an ASA point. How come? You got it wrong too when in your other post you talked about one of the boats being overtaken. I see you people need a hint: Subtract the angles. Does the result fit the definition of overtake? White. |
My seamanship question #1
Ellen MacArthur wrote: "Capt. JG" wrote | That's not worth an ASA point. How come? You got it wrong too when in your other post you talked about one of the boats being overtaken. I see you people need a hint: Subtract the angles. Does the result fit the definition of overtake? Cheers, Ellen The vessel that is overtaking another vessel is the give-way vessel. You said 180 was "overtaking" the 280 vessel. End of story. Nothing else matters. Joe |
My seamanship question #1
Because the course difference is less then 67.5 degrees, the qualifies
as an overtaking situation. According to Rule 14, "Notwithstanding anything contained in Rules 4 through 18, any vessel overtaking any other shall keep out of the way of the vessel being overtaken." In other words, it doesn't matter that one or both are sailboats, or small, the overtaking boat must stay clear. Ellen MacArthur wrote: A little sailboat with no motor is on the starboard tack catching up with another little sailboat with no motor on the starboard tack. The one catching up is going on a course of 180 degrees. The one getting caught is going 208 degrees. Which one has to change course if it looks like they're going to hit each other? Cheers, Ellen |
My seamanship question #1
Ellen MacArthur wrote:
How come? You got it wrong too when in your other post you talked about one of the boats being overtaken. I see you people need a hint: Subtract the angles. Does the result fit the definition of overtake? A vessel shall be deemed to be overtaking when coming up with another vessel from a direction more than 22.5 degrees abaft her beam, ... You have described the course that each vessel is on, the subtraction of one from the other being 28 degrees - but this doesn't pertain to the direction from the beam of the vessel being overtaken. You didn't define their positions, only their courses, and stated that their courses look like they will converge (which, for colreg purposes, is close enough to be considered a potential collision situation). So, we have a boat on 208deg, and another (catching up on the first) on 180deg, with a convergence point ahead if they maintain these courses. Whether the catching boat is 22.5deg abaft of the other boat's beam is unknown - they could be on a collision course, or not, depending on their positions. See... http://sports.webshots.com/photo/826...48327613VRqQxV In the left-hand diagram, the green boat is overtaking the red one, but it isn't in the right-hand diagram because it's ahead of the green one's imaginary line representing 22.5deg abaft her beam. Until you define their positions, it cannot be said for sure that the situation is an overtaking one. In lieu of that, I would say that the windward boat has to keep clear. -- Capt Scumbalino |
My seamanship question #1
Jeff wrote:
Because the course difference is less then 67.5 degrees, the qualifies as an overtaking situation. According to Rule 14, "Notwithstanding anything contained in Rules 4 through 18, any vessel overtaking any other shall keep out of the way of the vessel being overtaken." In other words, it doesn't matter that one or both are sailboats, or small, the overtaking boat must stay clear. Ooops! That's Rule 13, of course! And, since the question is a bit vague on the meaning of "it looks like they're going to hit," and could be that the overtaken vessel may be required take evasive action if a collision appears imminent. Ellen MacArthur wrote: A little sailboat with no motor is on the starboard tack catching up with another little sailboat with no motor on the starboard tack. The one catching up is going on a course of 180 degrees. The one getting caught is going 208 degrees. Which one has to change course if it looks like they're going to hit each other? Cheers, Ellen |
My seamanship question #1
Jeff wrote:
Because the course difference is less then 67.5 degrees, the qualifies as an overtaking situation. According to Rule 14, "Notwithstanding anything contained in Rules 4 through 18, any vessel overtaking any other shall keep out of the way of the vessel being overtaken." My understanding is that it isn't about differences in course, per-se, but must also include the bearing from the vessel that is being caught, to the vessel that is catching. -- Capt Scumbalino |
My seamanship question #1
On Wed, 13 Sep 2006 00:00:02 +0100, "Capt. Scumbalino"
wrote: Ellen MacArthur wrote: How come? You got it wrong too when in your other post you talked about one of the boats being overtaken. I see you people need a hint: Subtract the angles. Does the result fit the definition of overtake? A vessel shall be deemed to be overtaking when coming up with another vessel from a direction more than 22.5 degrees abaft her beam, ... You have described the course that each vessel is on, the subtraction of one from the other being 28 degrees - but this doesn't pertain to the direction from the beam of the vessel being overtaken. You didn't define their positions, only their courses, and stated that their courses look like they will converge (which, for colreg purposes, is close enough to be considered a potential collision situation). "The one catching up is going on a course of 180 degrees" If they are to converge "the direction from the beam of the vessel being overtaken" must be less than 28 degrees. So, we have a boat on 208deg, and another (catching up on the first) on 180deg, with a convergence point ahead if they maintain these courses. Whether the catching boat is 22.5deg abaft of the other boat's beam is unknown - they could be on a collision course, or not, depending on their positions. See... http://sports.webshots.com/photo/826...48327613VRqQxV In the left-hand diagram, the green boat is overtaking the red one, but it isn't in the right-hand diagram because it's ahead of the green one's imaginary line representing 22.5deg abaft her beam. Until you define their positions, it cannot be said for sure that the situation is an overtaking one. In lieu of that, I would say that the windward boat has to keep clear. |
My seamanship question #1
On Wed, 13 Sep 2006 00:12:02 +0100, Goofball_star_dot_etal
wrote: On Wed, 13 Sep 2006 00:00:02 +0100, "Capt. Scumbalino" wrote: Ellen MacArthur wrote: How come? You got it wrong too when in your other post you talked about one of the boats being overtaken. I see you people need a hint: Subtract the angles. Does the result fit the definition of overtake? A vessel shall be deemed to be overtaking when coming up with another vessel from a direction more than 22.5 degrees abaft her beam, ... You have described the course that each vessel is on, the subtraction of one from the other being 28 degrees - but this doesn't pertain to the direction from the beam of the vessel being overtaken. You didn't define their positions, only their courses, and stated that their courses look like they will converge (which, for colreg purposes, is close enough to be considered a potential collision situation). "The one catching up is going on a course of 180 degrees" If they are to converge "the direction from the beam of the vessel being overtaken" must be less than 28 degrees. Oops! 90+ 14... So, we have a boat on 208deg, and another (catching up on the first) on 180deg, with a convergence point ahead if they maintain these courses. Whether the catching boat is 22.5deg abaft of the other boat's beam is unknown - they could be on a collision course, or not, depending on their positions. See... http://sports.webshots.com/photo/826...48327613VRqQxV In the left-hand diagram, the green boat is overtaking the red one, but it isn't in the right-hand diagram because it's ahead of the green one's imaginary line representing 22.5deg abaft her beam. Until you define their positions, it cannot be said for sure that the situation is an overtaking one. In lieu of that, I would say that the windward boat has to keep clear. |
My seamanship question #1
Capt. Scumbalino wrote:
Jeff wrote: Because the course difference is less then 67.5 degrees, the qualifies as an overtaking situation. According to Rule 14, "Notwithstanding anything contained in Rules 4 through 18, any vessel overtaking any other shall keep out of the way of the vessel being overtaken." My understanding is that it isn't about differences in course, per-se, but must also include the bearing from the vessel that is being caught, to the vessel that is catching. Yes, you are correct. The method I used only works if they are going approximately the same speed. However, without doing the calculation, I would think that the overtaking vessel is going *much* faster if this is technically a crossing situation. I'll have to work this out on a calculator. That brings up an interesting question: If a boat is going much faster than another, so much so that its impossible for the slower to avoid collision, which rule applies? Rule 17(b) clearly does, if action by the giveway vessel alone is not enough to avoid collision. But also Rule is important, because of the "special circumstances" and "limitations of the vessels." And if a collision occurred, how much liability gets assessed on the giveway vessel? This situation happens frequently when sport fishing boats are headed out at 35 knots, crossing cruising boats powering at 6 knots. |
My seamanship question #1
Capt. Scumbalino wrote: Jeff wrote: Because the course difference is less then 67.5 degrees, the qualifies as an overtaking situation. According to Rule 14, "Notwithstanding anything contained in Rules 4 through 18, any vessel overtaking any other shall keep out of the way of the vessel being overtaken." My understanding is that it isn't about differences in course, per-se, but must also include the bearing from the vessel that is being caught, to the vessel that is catching. -- Capt Scumbalino Her wording has a very key phrase "Catching up with" this is an overtaking situation not a crossing situation, therefore we know the vessel is 22.5 degrees abaft the beam or she would have said they were meeting or crossing IMO. Joe |
My seamanship question #1
Jeff wrote:
Capt. Scumbalino wrote: Jeff wrote: Because the course difference is less then 67.5 degrees, the qualifies as an overtaking situation. According to Rule 14, "Notwithstanding anything contained in Rules 4 through 18, any vessel overtaking any other shall keep out of the way of the vessel being overtaken." My understanding is that it isn't about differences in course, per-se, but must also include the bearing from the vessel that is being caught, to the vessel that is catching. Yes, you are correct. The method I used only works if they are going approximately the same speed. However, without doing the calculation, I would think that the overtaking vessel is going *much* faster if this is technically a crossing situation. I'll have to work this out on a calculator. That brings up an interesting question: If a boat is going much faster than another, so much so that its impossible for the slower to avoid collision, which rule applies? Rule 17(b) clearly does, if action by the giveway vessel alone is not enough to avoid collision. But also Rule is important, because of the "special circumstances" and "limitations of the vessels." And if a collision occurred, how much liability gets assessed on the giveway vessel? This situation happens frequently when sport fishing boats are headed out at 35 knots, crossing cruising boats powering at 6 knots. OOOPS Again!! As soon as I drew this out I realized I had it backwards. If the speeds are identical, then it could be converging situation, where the heading is not important but the bearing obviously is. However, the question specified "catching up" which would seem to rule out converging. |
My seamanship question #1
Capt. JG wrote:
How do you figure? If one boat is being overtaken, in this scenario, that's pretty much the end of the story. Speed isn't an issue. because if the speeds were such one could conceivably pass by the other without any course adjustments being needed.... |
My seamanship question #1
Ellen MacArthur wrote:
"katy" wrote | May never be needed...if their speeds are such that one bypasses the | other completely.... Good try but I said if it looks like they're gonna hit each other. You have one more guess... Cheers, Ellen they both have the burden of avoiding a collision...;ppls ;ole os like almost preganat...there is no such thing...and speed does make a diference because it is a variable factor.... |
My seamanship question #1
Goofball_star_dot_etal wrote:
"The one catching up is going on a course of 180 degrees" If they are to converge "the direction from the beam of the vessel being overtaken" must be less than 28 degrees. Whether or not they converge is a function of their current positions, their courses and their speeds. Have a look at my diagram linked to elsewhere. If the red boat is doing 1kt, and the green one 100kts, then the green one will be past the red one - will pass over the red boat's projected course - long before the red boat gets to the same point. The direction from the beam has nothing to do with convergence, but is a means of defining whether the situation is an overtaking one. -- Capt Scumbalino |
My seamanship question #1
Joe wrote:
Her wording has a very key phrase "Catching up with" this is an overtaking situation not a crossing situation, therefore we know the vessel is 22.5 degrees abaft the beam or she would have said they were meeting or crossing IMO. Rule 13 makes no reference to "catching". -- Capt Scumbalino |
My seamanship question #1
Capt. Scumbalino wrote:
Goofball_star_dot_etal wrote: "The one catching up is going on a course of 180 degrees" If they are to converge "the direction from the beam of the vessel being overtaken" must be less than 28 degrees. Whether or not they converge is a function of their current positions, their courses and their speeds. Have a look at my diagram linked to elsewhere. If the red boat is doing 1kt, and the green one 100kts, then the green one will be past the red one - will pass over the red boat's projected course - long before the red boat gets to the same point. The direction from the beam has nothing to do with convergence, but is a means of defining whether the situation is an overtaking one. Ha....speed....said it was a variable.... |
My seamanship question #1
"Joe" wrote -way vessel. | | You said 180 was "overtaking" the 280 vessel. I did NOT say that. Look again, Joe. I said one sailboat was catching up to the other. Since everybody seems clueless, I'll give the answer. It's a crossing situation. Subtract the angles. It has to be within a 22 and 1/2 degree angle of the centerline to be overtaking. 208-180 = 28 degrees. Not overtaking. Pay attention, Joe. In a crossing situation the sailboat to windward must avoid the other sailboat since they're both on the starboard tack. This is FUN! Cheers, Ellen |
My seamanship question #1
"Capt. Scumbalino" wrote | In lieu of that, I would say that the windward boat has to keep clear. Right, the windward boat must stay clear. Both are on the starboard tack and it's not overtaking by definition. It's a crossing situation. Cheers, Ellen |
My seamanship question #1
Charlie Morgan wrote:
On 12 Sep 2006 15:41:44 -0700, "Joe" wrote: Ellen MacArthur wrote: "Capt. JG" wrote | That's not worth an ASA point. How come? You got it wrong too when in your other post you talked about one of the boats being overtaken. I see you people need a hint: Subtract the angles. Does the result fit the definition of overtake? Cheers, Ellen The vessel that is overtaking another vessel is the give-way vessel. You said 180 was "overtaking" the 280 vessel. End of story. Nothing else matters. Joe If the vessels have screwed the pooch to the point where they are truly about to collide, it is the duty of both to do whatever is needed to avoid a collision. CWM I said that..... |
My seamanship question #1
"Ellen MacArthur" wrote: snip boring crap from a cedar bucket This is FUN! This is boring, Bart Senorita! LP |
My seamanship question #1
Ellen MacArthur wrote:
"Joe" wrote -way vessel. | | You said 180 was "overtaking" the 280 vessel. I did NOT say that. Look again, Joe. I said one sailboat was catching up to the other. Since everybody seems clueless, I'll give the answer. It's a crossing situation. Subtract the angles. It has to be within a 22 and 1/2 degree angle of the centerline to be overtaking. 208-180 = 28 degrees. Not overtaking. Pay attention, Joe. In a crossing situation the sailboat to windward must avoid the other sailboat since they're both on the starboard tack. This is FUN! Cheers, Ellen Sorry, Ellen, you have that wrong. Its 22.5 degrees behind the beam, not a difference in course. If the two boats have those headings it could be either overtaking or converging, which would make it crossing. However, since you stated "catching up" its hard to make this into something that isn't overtaking. |
My seamanship question #1
katy wrote: Charlie Morgan wrote: On 12 Sep 2006 15:41:44 -0700, "Joe" wrote: Ellen MacArthur wrote: "Capt. JG" wrote | That's not worth an ASA point. How come? You got it wrong too when in your other post you talked about one of the boats being overtaken. I see you people need a hint: Subtract the angles. Does the result fit the definition of overtake? Cheers, Ellen The vessel that is overtaking another vessel is the give-way vessel. You said 180 was "overtaking" the 280 vessel. End of story. Nothing else matters. Joe If the vessels have screwed the pooch to the point where they are truly about to collide, it is the duty of both to do whatever is needed to avoid a collision. CWM I said that..... You left out bob's classic "screwed the pooch" phrase. Joe |
My seamanship question #1
.... If they are
to converge "the direction from the beam of the vessel being overtaken" must be less than 28 degrees. It's also possible that they would converge from far enough away that there is no clear ahead or clear astern. This is defined in the racing rules but not (IIRC) the ColRegs. Capt. Scumbalino wrote: Whether or not they converge is a function of their current positions, their courses and their speeds. Have a look at my diagram linked to elsewhere. If the red boat is doing 1kt, and the green one 100kts, then the green one will be past the red one - will pass over the red boat's projected course - long before the red boat gets to the same point. The direction from the beam has nothing to do with convergence, but is a means of defining whether the situation is an overtaking one. Does it make any difference which one is to windward and which one is to leeward? I can't believe you all have chewed this over and nobody has realized that. As I make it out, if the two are both on starboard tack, and the faster one (catching up) is heading 180 and the other 208, then the one first one (catching up) will be to windward as they converge. That gives the other boat a double right of way! Fresh Breezes- Doug King |
My seamanship question #1
Joe wrote:
katy wrote: Charlie Morgan wrote: On 12 Sep 2006 15:41:44 -0700, "Joe" wrote: Ellen MacArthur wrote: "Capt. JG" wrote | That's not worth an ASA point. How come? You got it wrong too when in your other post you talked about one of the boats being overtaken. I see you people need a hint: Subtract the angles. Does the result fit the definition of overtake? Cheers, Ellen The vessel that is overtaking another vessel is the give-way vessel. You said 180 was "overtaking" the 280 vessel. End of story. Nothing else matters. Joe If the vessels have screwed the pooch to the point where they are truly about to collide, it is the duty of both to do whatever is needed to avoid a collision. CWM I said that..... You left out bob's classic "screwed the pooch" phrase. Joe I'm not Bob...I don't need to resort to crudeness...smirk....meow.... |
My seamanship question #1
DSK wrote:
.... If they are to converge "the direction from the beam of the vessel being overtaken" must be less than 28 degrees. It's also possible that they would converge from far enough away that there is no clear ahead or clear astern. This is defined in the racing rules but not (IIRC) the ColRegs. It is covered - if it's converging instead of overtaking, then for sailboats it becomes windward/leeward or port/starboard. There is no "clear astern" or "overlap" in the ColRegs. The "overtaking" relationship is established if a slower boat sees a faster 22.5 degrees or more abaft the beam. After that, the relationship is not changed until the fast boat is past and clear. Capt. Scumbalino wrote: Whether or not they converge is a function of their current positions, their courses and their speeds. Have a look at my diagram linked to elsewhere. If the red boat is doing 1kt, and the green one 100kts, then the green one will be past the red one - will pass over the red boat's projected course - long before the red boat gets to the same point. The direction from the beam has nothing to do with convergence, but is a means of defining whether the situation is an overtaking one. Does it make any difference which one is to windward and which one is to leeward? I can't believe you all have chewed this over and nobody has realized that. "Catching up" makes it hard to have this anything other than overtaking. If you saw a boat slightly behind your beam (say 20 degrees) and slowly converging, would you call it "catching up"? Remember, if it was ever more than 22.5 abaft the beam it's overtaking. And, if there's any doubt, overtaking is assumed. As I make it out, if the two are both on starboard tack, and the faster one (catching up) is heading 180 and the other 208, then the one first one (catching up) will be to windward as they converge. That gives the other boat a double right of way! Yes, if this is converging, the slower boat is to leeward and is still standon. |
My seamanship question #1
Well, true, but she did say catching up, and I took that to mean a possible
collision. The overtaken needs to hold his course. The one overtaking needs to change course, slow down, whatever. -- "j" ganz @@ www.sailnow.com "katy" wrote in message ... Capt. JG wrote: How do you figure? If one boat is being overtaken, in this scenario, that's pretty much the end of the story. Speed isn't an issue. because if the speeds were such one could conceivably pass by the other without any course adjustments being needed.... |
My seamanship question #1
Does it make any difference which one is to windward and which one is
to leeward? I can't believe you all have chewed this over and nobody has realized that. Jeff wrote: "Catching up" makes it hard to have this anything other than overtaking. If you saw a boat slightly behind your beam (say 20 degrees) and slowly converging, would you call it "catching up"? No, *I* wouldn't but then I'm not the one trying to write a tricky question. Remember, if it was ever more than 22.5 abaft the beam it's overtaking. And, if there's any doubt, overtaking is assumed. Right, that's why the running lights are arranged the way they are. Although I never heard a skipper say to a crew "Take a transit off the running light blinder & tell me if that other boat bears more or less that 22.5 degrees aft of our beam." The phrase just doesn't have that nautical flair to it. As I make it out, if the two are both on starboard tack, and the faster one (catching up) is heading 180 and the other 208, then the one first one (catching up) will be to windward as they converge. That gives the other boat a double right of way! Yes, if this is converging, the slower boat is to leeward and is still standon. So what's the big deal? The boat "catching up" has to dodge the other one, which is pretty much what everybody has said. If "Ellen M" has any point-awarding authority then she should give everybody some. DSK |
My seamanship question #1
The angles have nothing to do with it if it's an overtaking situation. Are
you going to be out there with a protractor measuring? If the first boat is ahead of the other boat (doesn't have to be directly inline), that boat has stand-on status as far as I'm concerned. The other boat is burdoned and must not cause a collision. The boat being overtaken must hold course. The other boat must give-way. Joe is right. But it's too easy for a point. :-) -- "j" ganz @@ www.sailnow.com "Ellen MacArthur" wrote in message reenews.net... "Capt. JG" wrote | That's not worth an ASA point. How come? You got it wrong too when in your other post you talked about one of the boats being overtaken. I see you people need a hint: Subtract the angles. Does the result fit the definition of overtake? Cheers, Ellen |
My seamanship question #1
Absolutely.
-- "j" ganz @@ www.sailnow.com "Charlie Morgan" wrote in message ... On 12 Sep 2006 15:41:44 -0700, "Joe" wrote: Ellen MacArthur wrote: "Capt. JG" wrote | That's not worth an ASA point. How come? You got it wrong too when in your other post you talked about one of the boats being overtaken. I see you people need a hint: Subtract the angles. Does the result fit the definition of overtake? Cheers, Ellen The vessel that is overtaking another vessel is the give-way vessel. You said 180 was "overtaking" the 280 vessel. End of story. Nothing else matters. Joe If the vessels have screwed the pooch to the point where they are truly about to collide, it is the duty of both to do whatever is needed to avoid a collision. CWM |
My seamanship question #1
Like we all said, sort of. :-) But, thanks for the technical clarification.
:-) -- "j" ganz @@ www.sailnow.com "Jeff" wrote in message ... Ellen MacArthur wrote: "Joe" wrote -way vessel. | | You said 180 was "overtaking" the 280 vessel. I did NOT say that. Look again, Joe. I said one sailboat was catching up to the other. Since everybody seems clueless, I'll give the answer. It's a crossing situation. Subtract the angles. It has to be within a 22 and 1/2 degree angle of the centerline to be overtaking. 208-180 = 28 degrees. Not overtaking. Pay attention, Joe. In a crossing situation the sailboat to windward must avoid the other sailboat since they're both on the starboard tack. This is FUN! Cheers, Ellen Sorry, Ellen, you have that wrong. Its 22.5 degrees behind the beam, not a difference in course. If the two boats have those headings it could be either overtaking or converging, which would make it crossing. However, since you stated "catching up" its hard to make this into something that isn't overtaking. |
| All times are GMT +1. The time now is 03:21 PM. |
Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004 - 2014 BoatBanter.com