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Sman · 02-16-2011, 11:31 AM

I find the technology part of the gps vs speedometer readings discussion interesting. I don't have a gps and never looked into how they work, cool stuff. I have compared one boat speedometer to another and have seen a difference. Whether you swap yours out for a new one or a friend clocks you, always a few mph off in my experience.

As far as getting ticketed in a boat, if the marine patrol handle it like they do on the roads, (not sure they do/will) the slightly different numbers may not matter. As my experience tells me that they tend not to pull you over for going 57 in a 55, although they could and maybe someone here will tell me they have, but I am not sure 60 in a 55 gets you a ticket most of the time either. Don't really know what the line is, but it seems there is some leeway there on the roads. I would think the same would apply for boats.

02-16-2011, 11:31 AM	#63
Sman Senior Member Join Date: Apr 2005 Posts: 102 Thanks: 3 Thanked 27 Times in 8 Posts	original topic I find the technology part of the gps vs speedometer readings discussion interesting. I don't have a gps and never looked into how they work, cool stuff. I have compared one boat speedometer to another and have seen a difference. Whether you swap yours out for a new one or a friend clocks you, always a few mph off in my experience. As far as getting ticketed in a boat, if the marine patrol handle it like they do on the roads, (not sure they do/will) the slightly different numbers may not matter. As my experience tells me that they tend not to pull you over for going 57 in a 55, although they could and maybe someone here will tell me they have, but I am not sure 60 in a 55 gets you a ticket most of the time either. Don't really know what the line is, but it seems there is some leeway there on the roads. I would think the same would apply for boats.