Came across this while re-watching these great videos, now Oct 2021. I had always wondered how great Map makers could accurately map the terrain in the distance onshore, using a Shooting Board from a boat offshore. This method you explain here has opened my eyes. Thank you once again Shane Kelly, USMC. Corporals Corner
22yrs in the Army (retired. That is why I am fat and hairy). Expert Infantry, and Ground Recon; I have never heard of this. The simplicity is beautiful. Thanks.
Great videos, had basic land nav in USAF and do not use it often enough. These videos are great refreshers. Outstanding knowledge and explanation Marine.
makes sense!! cz it's a right triangle so the new 5+ degrees azimuth you get means that the 4 angles of this triangle are 90 (obviously), 5 and 85. so tan 85= (distance to TP) / (distance u walked). Say u walked 40 meters and we can estimate tan 85 to almost 11 (it's actually 11.43...) we can calculate the distance to TP. Therefore, tan 85 = TP/40, which makes TP= 40xtan 85 = roughly 11x40=440. while the exact answer is 457.2, so that's a very good estimate with a 3% error. Great use of Trigonometry. And I used to complain at school that I'll never need to use this kind of Math in real life.
This is extremely GTG I never knew this. Fantastic knowledge to have. I will definitely be going back to this one til I learn it well. Thanks for sharing.
Thank you Corporal, I'm going to search for more of your videos on this. Mountainous terrain can make this very difficult. Where from my understanding would be to follow creeks, streams or dry washes down to a lower elevation.
I love it, real life trigonometry, genious. Tan(5deg)=Opp/Adj, so Adj=Opp/Tan(5). Opp=40paces, so Adj=40paces/Tan(5)=460paces. I think you are presuming 1 pace is about 1meter....Genious, I love it!
If you're comfortable with the math, finding the precise answer is x / tanӨ. Where x = how far you walk and Ө = the angle. The larger Ө, the more accurate you'll be. So for instance, if you start at 39 degrees, walk 6 meters and have 34 degrees. 6 / tan 5 = 68.5. If you use your trick to multiple by 11 you get 66. Both good estimates, expected value in this case is 68m exactly. Using same example, for 3 degrees I count out 3.5m. 3.5 / tan 3 = 66.7m. Still a good estimate to the expected value of 68m.
For the longest time I never saw you without the head wrap, or saw your full beard. The recommended vids were all earlier videos. Just curious, why’d you switch your “signature look”? Your channel inspired me to get my family into camping. Now we love it so much. Take good care man.
I'm 5'9 and I can only comfortably walk without any strain naturally for my own pace 20 inch steps So I have to take 2 paces to equal an average 6 ft persons pace to =1 meter roughly. I am not physically capable of walking full stride. So this is a prime example of how body type comes into play and physical condition of the person and their ability to take a full stride step. I laid out a tape measure and consistently only took 20 inch steps without causing strain so I have noted that information and Im sticking it in my compass pouch so that in the event I need that information which is very hand to have Ill have it. I honestly am in no condition to be hiking but shit does happen. You never know, its part of being prepared. I'm assembling a pack and kits but Im really in no physical condition to be in a shit situation however I want to be knowledgeable and have the skills and the equipment because shit happens.
Hi Corporals,wonder if you can help me with the following : On a clear day with me standing on the shoreline how can I ascertain the distance of a ship on the horizon from my position ? Any help appreciated ✌🏼
I had a good class of range estimation with you! I would like only to suggest that you verify: in the example you gave, the second azimuth bearing will be 15°, since the azimuth scale increases clockwise. Am i wright?
Came across this while re-watching these great videos, now Oct 2021. I had always wondered how great Map makers could accurately map the terrain in the distance onshore, using a Shooting Board from a boat offshore. This method you explain here has opened my eyes. Thank you once again Shane Kelly, USMC. Corporals Corner
22yrs in the Army (retired. That is why I am fat and hairy). Expert Infantry, and Ground Recon; I have never heard of this. The simplicity is beautiful. Thanks.
Tempest Luke - 20 years Army Infantry , never heard of this either it is simple and beautiful!
Great videos, had basic land nav in USAF and do not use it often enough. These videos are great refreshers. Outstanding knowledge and explanation Marine.
makes sense!! cz it's a right triangle so the new 5+ degrees azimuth you get means that the 4 angles of this triangle are 90 (obviously), 5 and 85. so tan 85= (distance to TP) / (distance u walked).
Say u walked 40 meters and we can estimate tan 85 to almost 11 (it's actually 11.43...) we can calculate the distance to TP.
Therefore, tan 85 = TP/40, which makes TP= 40xtan 85 = roughly 11x40=440. while the exact answer is 457.2, so that's a very good estimate with a 3% error.
Great use of Trigonometry. And I used to complain at school that I'll never need to use this kind of Math in real life.
This is extremely GTG I never knew this. Fantastic knowledge to have. I will definitely be going back to this one til I learn it well. Thanks for sharing.
Great video & you did really well explaining this technique.
Ah soo . Thanks for splaining in a way my feeble mind can understand . Also like the Imperial , been rolling mine since "72 .
Thank you Corporal, I'm going to search for more of your videos on this. Mountainous terrain can make this very difficult. Where from my understanding would be to follow creeks, streams or dry washes down to a lower elevation.
I love it, real life trigonometry, genious.
Tan(5deg)=Opp/Adj, so Adj=Opp/Tan(5). Opp=40paces, so Adj=40paces/Tan(5)=460paces. I think you are presuming 1 pace is about 1meter....Genious, I love it!
If you're comfortable with the math, finding the precise answer is x / tanӨ. Where x = how far you walk and Ө = the angle. The larger Ө, the more accurate you'll be.
So for instance, if you start at 39 degrees, walk 6 meters and have 34 degrees. 6 / tan 5 = 68.5. If you use your trick to multiple by 11 you get 66. Both good estimates, expected value in this case is 68m exactly. Using same example, for 3 degrees I count out 3.5m. 3.5 / tan 3 = 66.7m. Still a good estimate to the expected value of 68m.
This seems good.
What about thumb and eye method.
Brilliant stuff my friend 👍🇬🇧
I agree with Tempest Luke, I retired army 21 years and have never heard this, this is crazy simple. Thanks and God Bless.
Great video.
The soccer field estimation 100 mtrs was taught during the 60's. Principle of coincidental range finding which were in use 70 years ago.
Outstanding!!!!
what a great series of videos!!!
Muy interesante que los jóvenes aprendan uno nunca sabe cuándo sea útil saber la ubicación 🌎🌴
For the longest time I never saw you without the head wrap, or saw your full beard. The recommended vids were all earlier videos.
Just curious, why’d you switch your “signature look”?
Your channel inspired me to get my family into camping. Now we love it so much. Take good care man.
👍👍 ...Alan in 🇨🇱
Right on
FBI.
Holland.
Either Jake Wood
or Barry Evans.
Thanks for
the lessons, fellows.
Mental Bootcamp refresher course.
Good stuff
i'm on it!!
Semper Fi...definately suscribed
Thank you.
I'm 5'9 and I can only comfortably walk without any strain naturally for my own pace 20 inch steps So I have to take 2 paces to equal an average 6 ft persons pace to =1 meter roughly. I am not physically capable of walking full stride. So this is a prime example of how body type comes into play and physical condition of the person and their ability to take a full stride step.
I laid out a tape measure and consistently only took 20 inch steps without causing strain so I have noted that information and Im sticking it in my compass pouch so that in the event I need that information which is very hand to have Ill have it. I honestly am in no condition to be hiking but shit does happen. You never know, its part of being prepared. I'm assembling a pack and kits but Im really in no physical condition to be in a shit situation however I want to be knowledgeable and have the skills and the equipment because shit happens.
Nice...
Hi Corporals,wonder if you can help me with the following :
On a clear day with me standing on the shoreline how can I ascertain the distance of a ship on the horizon from my position ?
Any help appreciated ✌🏼
I like this method
Thank you
Have you done land nav?
GTG! this one I never learned before!
Do you always multiply your number of steps by 11? or does it vary. if so, what are the specs?
For 5 degrees it always 11.
I had a good class of range estimation with you! I would like only to suggest that you verify: in the example you gave, the second azimuth bearing will be 15°, since the azimuth scale increases clockwise. Am i wright?
Yes
So, you need a compass.