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Old 05-11-2010, 08:18 PM   #1
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Default Routes created in Homeport (or on Garmin) are bidirectional?

I know it sounds strange, but i haven't until used routes with my garmin. My question is, does it matter from what direction a route is created with respect to using it with the autopilot later?
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Old 05-12-2010, 05:15 AM   #2
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I know it sounds strange, but i haven't until used routes with my garmin. My question is, does it matter from what direction a route is created with respect to using it with the autopilot later?
I can't answer the question about the autopilot, but HomePort allows you to reverse or "invert" a route. Right click on the route name in the liat on the left side of the screen. Click on "Advanced", then "Invert Route".

I know that my 5208 plotter gives me the option of running a route in both directions.
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Old 05-12-2010, 01:15 PM   #3
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Does it matter, not really. When you engage the route on the plotter(select Navigate to), it will ask "FORWARD" or "BACKWARD", once you select one, it will then ask, "Would you like to Engage the AP?" if you say yes, the AP will then follow the route, as you selected in the direction you selected.

So what IS VERY important is, you know what direction the route is stored in. I just made this mistake last weekend, in a very bad place. I was going down a very small channel (30' wide) that is 1 to 2' deep on either side of it. I engaged a route which went down this channel, and selected FORWARD and then YES to engage AP. The boat immediately started to turn around, because I had accidentally stored the route in reverse of what I normally would. So "forward" was the opposite direction I was going. Luckily I have the Shadow drive and grabbed the wheel and corrected course before I was hard aground. I simply then stopped navigation, re-selected the route, and selected REVERSE and Yes to engage the AP and off I went.

Was a lesson for me.... When I got home, I inverted the route in HP as mentioned above. so it is now in the proper or expected direction. Basically, I make all my routes Forward from leaving port. So when I am leaving, I always select FORWARD, and when returning, I have to select REVERSE.
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Old 05-12-2010, 03:32 PM   #4
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Originally Posted by Birdman View Post
Does it matter, not really. When you engage the route on the plotter(select Navigate to), it will ask "FORWARD" or "BACKWARD", once you select one, it will then ask, "Would you like to Engage the AP?" if you say yes, the AP will then follow the route, as you selected in the direction you selected.

So what IS VERY important is, you know what direction the route is stored in. I just made this mistake last weekend, in a very bad place. I was going down a very small channel (30' wide) that is 1 to 2' deep on either side of it. I engaged a route which went down this channel, and selected FORWARD and then YES to engage AP. The boat immediately started to turn around, because I had accidentally stored the route in reverse of what I normally would. So "forward" was the opposite direction I was going. Luckily I have the Shadow drive and grabbed the wheel and corrected course before I was hard aground. I simply then stopped navigation, re-selected the route, and selected REVERSE and Yes to engage the AP and off I went.

Was a lesson for me.... When I got home, I inverted the route in HP as mentioned above. so it is now in the proper or expected direction. Basically, I make all my routes Forward from leaving port. So when I am leaving, I always select FORWARD, and when returning, I have to select REVERSE.
I do it the other way around. All of my routes are plotted inbound. I even label them "-in" to be clear. My rationale is that I am always going to be more tired coming in than going out, so the chances of making a mistake are higher. If I don't have to reverse the route coming in, that removes one more mistake I can make.

That's just me though.
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Old 05-12-2010, 04:52 PM   #5
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.......Basically, I make all my routes Forward from leaving port. So when I am leaving, I always select FORWARD, and when returning, I have to select REVERSE.
That's what I do even though I don't have an auto pilot.
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Old 05-12-2010, 08:06 PM   #6
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I do it the other way around. All of my routes are plotted inbound. I even label them "-in" to be clear.
Whatever works, as long as you stay consistent, that's what's important. I name them as Point A to Point B. This way the name tells me the direction.

Some examples:
A route from my marina Sunset Harbor to Fire Island Inlet. I name it "SH-FI INLET"

A route from Fire Island inlet to the Hudson Canyon, I name it "FI-HUDSON"

A route from marina to Montauk would be: "SH-MONTAUK"
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