I mostly have 1:50k maps.... but on a 1:24k map , we still have 1km grid squares . Just the detail would change not the size of the square itself, wouldn't we still be able to plot an eight digit point using a piece of paper with tic marks we can make using the distance scale in the legend ,it's just the terrain under the grid square that looks more magnified/detailed ... Or am I totally off base?
Correct - different scales will have more or less detail, but grid square is a grid square (1km). You can plot an 8 digit, and and it's certainly easier on a 1:24 or 1:25 than on a 1:50 to be precise.
@@STOKERMATIC thanks for taking the time to write back.i was just thinking out side the box on how to use different scaled maps to my advantage without having to buy 24,63,62.5 protractors....if they even make them. Are you retired yet? How many years left?🍻cheers bro.
I have a Cammenga Model 27 compass and a couple cheaper baseplate compasses. Would you say that the baseplate compasses are more versatile as you change map scales vs. the lensatic, or do you run into the same issue with both types of compasses?
Great q Michael - hmm - the baseplate compass has unique features (being able to adjust for declination) but as far as scales are concerned, same issues with both.
@@STOKERMATIC I'm okay with adjusting declination manually ... I'd rather the durability of the lensatic. I was originally worried about the Cammenga having 5 degree increments instead of smaller, as well as the side ruler being preset to 1:50000, but seeing how you use your compass proves that it doesn't make that much of a difference. The protractor is invaluable with lensatic, but again, I'm not super concerned about having a separate tool that needs to be used.
Stoker, man I have a dumb question. If I have a map that is 1/24,000 and i have my protractor for plotting, do I use the 1/25,000 section or can I still use the 1/50,000 for the remaining coordinates? Hope this makes sense
@@STOKERMATIC Distances on a 1:24,000 measured with a 1:25,000 scale will be estimated 1.042 times larger than they actually are. For short distances this difference may not be significant. A 1:20 engineering scale will read out directly in feet on the 1:24,000 scale map. As you point out, the 1:50,000 scale will be off considerably more, in fact 2.08 times!
You have several options available to you. 1. You can use the 1:25,000 scale and accept the error. The error is 25000/24000=1.042=4.2% which may be suitable for your needs. 2. You can use the 1:25,000 scale and account for the error by adding or subtracting the 42 meters every kilometer to correct for the error that you know will exist (depending whether you are measuring a distance on the map or marking a distance traveled to the map). 3. You can use ANY scale ruler (including the 1:25k, 1/50k, or even an unscaled ruler) and convert the measurements using a scaling factor. 4. Rather than using a ruler, you can use a compass to transfer measurements back and forth between the map and the map's scale in the key. 5. You can get a tool to work with the 1/24k scale which is commonly used on USGS maps such as one listed here: maptools.com/products/byscale
I just joined the "Stoker Squad". ( that's the name I gave your Patreon. Sorry co-opted it).
Anyone who wants more super awesome vids join the squad.
Now that's dadgum informative right there, brother! A+
Glad it was helpful Mark!
Another great explanation. Thanks.Was wondering if you could recommend one of your videos about search grids or patterns. Thanks again.
As in conducting a SAR?
@@STOKERMATIC yessir SAR
Good video. That is things we have to take into account.
Hope I don't break anybody's heart in an upcoming video revealing if our compass cheats on us or not!
Good one,Top.
Big up
I mostly have 1:50k maps.... but on a 1:24k map , we still have 1km grid squares . Just the detail would change not the size of the square itself, wouldn't we still be able to plot an eight digit point using a piece of paper with tic marks we can make using the distance scale in the legend ,it's just the terrain under the grid square that looks more magnified/detailed ... Or am I totally off base?
Correct - different scales will have more or less detail, but grid square is a grid square (1km). You can plot an 8 digit, and and it's certainly easier on a 1:24 or 1:25 than on a 1:50 to be precise.
@@STOKERMATIC thanks for taking the time to write back.i was just thinking out side the box on how to use different scaled maps to my advantage without having to buy 24,63,62.5 protractors....if they even make them. Are you retired yet? How many years left?🍻cheers bro.
I have a Cammenga Model 27 compass and a couple cheaper baseplate compasses. Would you say that the baseplate compasses are more versatile as you change map scales vs. the lensatic, or do you run into the same issue with both types of compasses?
Great q Michael - hmm - the baseplate compass has unique features (being able to adjust for declination) but as far as scales are concerned, same issues with both.
@@STOKERMATIC I'm okay with adjusting declination manually ... I'd rather the durability of the lensatic. I was originally worried about the Cammenga having 5 degree increments instead of smaller, as well as the side ruler being preset to 1:50000, but seeing how you use your compass proves that it doesn't make that much of a difference. The protractor is invaluable with lensatic, but again, I'm not super concerned about having a separate tool that needs to be used.
Stoker, man I have a dumb question. If I have a map that is 1/24,000 and i have my protractor for plotting, do I use the 1/25,000 section or can I still use the 1/50,000 for the remaining coordinates? Hope this makes sense
Use the 1/25. The 1/50 will put you way off.
STOKERMATIC: Thanks man
@@STOKERMATIC Distances on a 1:24,000 measured with a 1:25,000 scale will be estimated 1.042 times larger than they actually are. For short distances this difference may not be significant. A 1:20 engineering scale will read out directly in feet on the 1:24,000 scale map. As you point out, the 1:50,000 scale will be off considerably more, in fact 2.08 times!
Where do you get your maps?@@Rickflairshair
You have several options available to you.
1. You can use the 1:25,000 scale and accept the error. The error is 25000/24000=1.042=4.2% which may be suitable for your needs.
2. You can use the 1:25,000 scale and account for the error by adding or subtracting the 42 meters every kilometer to correct for the error that you know will exist (depending whether you are measuring a distance on the map or marking a distance traveled to the map).
3. You can use ANY scale ruler (including the 1:25k, 1/50k, or even an unscaled ruler) and convert the measurements using a scaling factor.
4. Rather than using a ruler, you can use a compass to transfer measurements back and forth between the map and the map's scale in the key.
5. You can get a tool to work with the 1/24k scale which is commonly used on USGS maps such as one listed here: maptools.com/products/byscale
BET YA MY MAP'S BIGGER THAN URS!...LOL.😅 👍 GO STOKE!
LMAO!
Size matters. The smaller you have, the more elbow room you get.