They may have laid them out using chords, but it's irrelevant since the plat is giving out the radius and the arc length, the two things that you real...

Building permits are often conceptualized drawings. I don't like doing them so I have little concern about them. Regulations can get so oppressive th...

There are many ways to "get on ground". When we first got GPS we calibrated to terrestrial control. That didn't last long as it tends to degrade the a...

All true, but the real world smacks you in the face, surveying in the Madison isn't useful when you're building or defining legal areas in the real wo...

That's pretty much it. To figure out a DAF I never even look at scale factors. My only interest is to match Ground and Grid distances as closely as po...

No in theory it's not the same number, the point of the publication I posted was that the DAF will simulate CSF within 20ppm. That's the 1/50,000. So...

Then you will get the same answers of course, you would multiply a number by the DAF then divide it, so it's identical. But the DAF and the CSF are tw...

No, you will not get the same answer using a combined scale factor between two points and using the Datum Adjustment Factor, they will never be the sa...

It's terrible, hopefully they can make some headway getting supplies into the really bad areas. To think Asheville is in a hurricane zone isn't someth...

Math Teacher, you're in North Carolina are you? How are you doing there, we spent a decade almost having NC as a second home. It's heartbreaking wat...

The DAF isn't applied to any distances. Control is run with GPS and leveling. Once finished state coordinates are calculated then globally the coordi...

Hey man, I'm glad you're on this site. And just so you know, I've got no dog in this show, but I think it's good to get different perspectives and see...

LOL, yes they do, just don't call it a combined scale factor. 😉 And you didn't.

This publication explains the difference and calls the resulting adjustment factor a Datum Adjustment Factor (DAF). Other publications I've read call ...

The other question is why are they worried about ending up in a court case because of using a 5" instrument to set property corners? That's exactly t...

If you're using the instrument for fill in then the 5" gun is good. If you need to run a bit longer traverses maybe the 3" gun, if you need to do huge...

Had to be an attorney.

If you really want it to get interesting look up Little Mountain, east of the Pryor's.

I knew that name had a historical connection, Sergeant Nathaniel Pryor, you can look it up on google to get the story.

I don't know where that name came from or even if the spelling is correct, it's been over 40 years since I looked at those data sheets. I assume it's...