why would a 7.5 minute quad in Wisconsin be more narrow (longitude) than a 7.5 quad in Texas?
The lines of longitude get narrower as they go towards the north pole or south pole. Texas is closer to the middle, where the lines are the widest. Wisconsin is north, so the lines are closer together.
Re: Road Scholar B
Posted: April 24th, 2016, 10:12 am
by Fanglin
brayden box wrote:
Fanglin wrote:Alright, my question:
why would a 7.5 minute quad in Wisconsin be more narrow (longitude) than a 7.5 quad in Texas?
The lines of longitude get narrower as they go towards the north pole or south pole. Texas is closer to the middle, where the lines are the widest. Wisconsin is north, so the lines are closer together.
Nice job!
Re: Road Scholar B
Posted: May 1st, 2016, 6:02 pm
by Fanglin
Ok, since nobody posted a question, I'll go again.
Q: At airports, How do you determine the Runway number for a specific runway, given that you have a protractor. (by named, I mean a number, then sometimes a letter.)
Re: Road Scholar B
Posted: May 7th, 2016, 8:04 pm
by log10[infinity]
Hopefully this is right...
To determine the runway number, it's the direction of the runway in tens of degrees from magnetic north. So, using the protractor, find the azimuth of the runway (not sure where you measure from), then divide by 10, round to a whole number, and subtract the magnetic declination. For the letter that sometimes comes afterwards, there may be 2 to 3 parallel runways (thus all having the same number), and R would refer to the right one, C would be the center one, and L would be the left one, designating the position when approaching the runway.
Re: Road Scholar B
Posted: May 11th, 2016, 2:41 pm
by Fanglin
Wow! not many people know that one! I'm sorta a plane geek, so that's why I am asking a question like that.
Re: Road Scholar B
Posted: May 11th, 2016, 6:59 pm
by log10[infinity]
I guess it's my turn to ask a question:
How many acres are in a PLSS section?
Re: Road Scholar B
Posted: May 13th, 2016, 7:55 am
by ptabraham_nerd01
log10[infinity] wrote:I guess it's my turn to ask a question:
How many acres are in a PLSS section?
640
Re: Road Scholar B
Posted: May 13th, 2016, 11:20 am
by log10[infinity]
Correct! Your turn.
Re: Road Scholar B
Posted: May 13th, 2016, 1:16 pm
by ptabraham_nerd01
Ok... What are bathymetric contours?
Re: Road Scholar B
Posted: May 14th, 2016, 10:09 am
by Fanglin
Isn't it the contours that are underwater, and indicate depth from the surface level.
