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Range finder????? 2495

No Life Club Posts: 1,751
Range finder?????
« on: September 22, 2015, 11:16:52 PM »
I've heard the fish scaler can be used a range finds but have never found a source for this or how to do it. Any help would be appreciated.

Jeep the SAK of the auto world or is it SAK the Jeep of the Knife world?
Jr. Member Posts: 66
Re: Range finder?????
« Reply #1 on: September 23, 2015, 03:17:18 AM »
You can use any marked object as a rangefinder. Here's how:

1. Find or mark a six foot tall object.
2. Measure a 25 yard distance from it.
3. Vertically line up the base of the fish scaler with the bottom of it.
4. Make a notch to line up with the top of it.
5. Now repeat 50, 100, 200, 300, 400 and 500 yards away, making a notch for each.

You now have a rangefinder for a man-sized object at these distances. Next time you see a man at some distance, line his feet up with the bottom of your scaler and you'll know how far away he is based on the notch lining up with the top of his head. Using the same method, you can create the a scale for any size object at any distance .









I complained that I had no hat, until I met a man who had no head.
Absolutely No Life Club Posts: 7,643 Tool Carrying Linux User - I'm Iron Man!!!
Re: Range finder?????
« Reply #2 on: September 23, 2015, 03:21:31 AM »
nice, thanks!

If I can help, let me know 
Absolute Zombie Club Posts: 20,832 What's the matter, kid? Don't ya like clowns?
Re: Range finder?????
« Reply #3 on: September 23, 2015, 03:50:39 AM »
Good to know.  :tu:

I'm the milk man!
No Life Club Posts: 1,751
Re: Range finder?????
« Reply #4 on: September 23, 2015, 07:39:29 PM »
Thanks for your help that's what I was looking for.

Jeep the SAK of the auto world or is it SAK the Jeep of the Knife world?
Hero Member Posts: 604
Re: Range finder?????
« Reply #5 on: September 24, 2015, 02:03:44 PM »
Here's something interesting.  The fish scaler has 8 serrations per 30mm, so each serration is about 3.75mm.  If you hold it at arm's length then - give or take a bit of arm length variation - it will be about 2ft or 600mm from your eye. 

With those two measurements you can work out the apparent angular size of each serration when held at arm's length:  3.75/600 ≈ 0.006 radians = 6 milliradians or mils.

A mil is a handy unit of angle measurement for range finding: it's the angular size of a 1 ft object at 1000ft (or a 1m object at 1000m etc).

So 6 mils is 6ft at 1000ft: therefore if a 6ft man matches the size of of 1 serration (6 mils), he is about 1000ft away.  2 serrations = 500ft, 4 serrations = 250ft, and so on.  (Assuming I've got my sums right!)

Maybe it will be clearer with an amateurishly photoshopped diagram:
Absolutely No Life Club Posts: 7,643 Tool Carrying Linux User - I'm Iron Man!!!
Re: Range finder?????
« Reply #6 on: September 24, 2015, 02:07:50 PM »
Here's something interesting.  The fish scaler has 8 serrations per 30mm, so each serration is about 3.75mm.  If you hold it at arm's length then - give or take a bit of arm length variation - it will be about 2ft or 600mm from your eye. 

With those two measurements you can work out the apparent angular size of each serration when held at arm's length:  3.75/600 ≈ 0.006 radians = 6 milliradians or mils.

A mil is a handy unit of angle measurement for range finding: it's the angular size of a 1 ft object at 1000ft (or a 1m object at 1000m etc).

So 6 mils is 6ft at 1000ft: therefore if a 6ft man matches the size of of 1 serration (6 mils), he is about 1000ft away.  2 serrations = 500ft, 4 serrations = 250ft, and so on.  (Assuming I've got my sums right!)

Maybe it will be clearer with an amateurishly photoshopped diagram:

very nice break down.  the graphic does a great job of explaining it too.

If I can help, let me know 
Absolute Zombie Club Posts: 22,465 "Spending all of my money and time Oh, ho ho...'"
Re: Range finder?????
« Reply #7 on: September 24, 2015, 03:40:35 PM »
Here's something interesting.  The fish scaler has 8 serrations per 30mm, so each serration is about 3.75mm.  If you hold it at arm's length then - give or take a bit of arm length variation - it will be about 2ft or 600mm from your eye. 

With those two measurements you can work out the apparent angular size of each serration when held at arm's length:  3.75/600 ≈ 0.006 radians = 6 milliradians or mils.

A mil is a handy unit of angle measurement for range finding: it's the angular size of a 1 ft object at 1000ft (or a 1m object at 1000m etc).

So 6 mils is 6ft at 1000ft: therefore if a 6ft man matches the size of of 1 serration (6 mils), he is about 1000ft away.  2 serrations = 500ft, 4 serrations = 250ft, and so on.  (Assuming I've got my sums right!)

Maybe it will be clearer with an amateurishly photoshopped diagram:

very nice break down.  the graphic does a great job of explaining it too.

+1!!!!

- Robert

Attending ALOX Anonymous meetings since 1983!



Vox Clamantis in Deserto
Quo Fata Ferunt
PS3 hackers should be publicly castrated.
I aim to misbehave.
Jr. Member Posts: 66
Re: Range finder?????
« Reply #8 on: September 24, 2015, 03:58:56 PM »
Excellent shibafu. Saved the image. The arm's length part is an important detail I left out.



I complained that I had no hat, until I met a man who had no head.
No Life Club Posts: 2,167
Re: Range finder?????
« Reply #9 on: September 24, 2015, 04:36:34 PM »
Here's something interesting.  The fish scaler has 8 serrations per 30mm, so each serration is about 3.75mm.  If you hold it at arm's length then - give or take a bit of arm length variation - it will be about 2ft or 600mm from your eye. 

With those two measurements you can work out the apparent angular size of each serration when held at arm's length:  3.75/600 ≈ 0.006 radians = 6 milliradians or mils.

A mil is a handy unit of angle measurement for range finding: it's the angular size of a 1 ft object at 1000ft (or a 1m object at 1000m etc).

So 6 mils is 6ft at 1000ft: therefore if a 6ft man matches the size of of 1 serration (6 mils), he is about 1000ft away.  2 serrations = 500ft, 4 serrations = 250ft, and so on.  (Assuming I've got my sums right!)

Maybe it will be clearer with an amateurishly photoshopped diagram:

very nice break down.  the graphic does a great job of explaining it too.

+1!!!!

+1 too.  Great job on the image, saved!
Hero Member Posts: 604
Re: Range finder?????
« Reply #10 on: September 24, 2015, 04:42:01 PM »
I want a Swisschamp now.  The whole reason I never bought one was because of the uselessness of the fish scaler :)
No Life Club Posts: 1,751
Re: Range finder?????
« Reply #11 on: September 24, 2015, 05:10:31 PM »
I want a Swisschamp now.  The whole reason I never bought one was because of the uselessness of the fish scaler :)

I use my fish scaler a lot. I thought it was useless to untill I started to carry one on my Craftsman. Now I don't have to have one one on me but I prefer to have one on me.

Jeep the SAK of the auto world or is it SAK the Jeep of the Knife world?
Sr. Member Posts: 326
Re: Range finder?????
« Reply #12 on: September 24, 2015, 10:21:36 PM »
Cool bit of info, thanks!

Absolutely No Life Club Posts: 6,821
Re: Range finder?????
« Reply #13 on: September 25, 2015, 12:31:35 AM »
Great explanation and great illustration!   :salute:

A variation on this: Knowing a 6' tall man is 'x' notches you can use multiples of that to get a rough estimate of the hight of a cliff, waterfall, tree, etc.
No Life Club Posts: 1,001
Re: Range finder?????
« Reply #14 on: September 25, 2015, 03:38:35 AM »
Cool to know.  SAKs are amazing
Hero Member Posts: 604
Re: Range finder?????
« Reply #15 on: September 25, 2015, 01:03:16 PM »
You could do something similar with the saw too.  The current Vic 91mm/93mm saw teeth have an interval of 2.25mm, which works out to a 6ft man at 1600ft or 500 metres.  Not as memorable or convenient as 1 tooth = 1000ft for the fish scaler.  So the fish scaler will be easier to use for this purpose.
No Life Club Posts: 3,406 It is what it isn't.
Re: Range finder?????
« Reply #16 on: September 29, 2015, 05:10:54 AM »
Very cool and thanks for sharing it!  I am starting to like that fish scaler more and more with these kinds of uses!

Already can use them for a poker, stirrer, scraper and now a range finder.  Can't wait to hear more ideas!

Thx.
Global Moderator Zombie Apprentice Posts: 17,395
Re: Range finder?????
« Reply #17 on: September 29, 2015, 07:03:27 AM »
This by far is the most interesting use of the fish scaler. 

Esse Quam Videri
Hero Member Posts: 616 Observe - Evaluate - Control
Re: Range finder?????
« Reply #18 on: October 04, 2015, 02:02:52 PM »
Great idea! I programmed an online calculator for range finding some time ago; see here migrated to my new site: http://wndsn.com/rc/. Also added the example to the explanation page: http://wndsn.com/?d=notes/simple_navigation.txt

 :salute:
No Life Club Posts: 3,104 American Clandestine Materials Executive (ACME)
Re: Range finder?????
« Reply #19 on: October 05, 2015, 05:08:35 AM »
Ok then... I figured the only other use it had was as soft material (sheetrock) saw.

"Even if it is only the handful of people I meet on the street, or in my home, I can still protect them with this one sword" Kenshin Himura

Patriotism is a lively sense of collective responsibility, Nationalism is a silly cock crowing on it's own dunghill.

Necessity is the mother of invention. If you're not ready, it's "a mother". If you are, it's "mom".
Newbie Posts: 23
Re: Range finder?????
« Reply #20 on: July 01, 2016, 03:22:45 AM »
Waw, this is fantastic to know, thank you very much for all the explanations!

C'est en faisant qu'on apprend
Zombie Apprentice Posts: 13,310 Hidalgo, Castillo del Hook
Re: Range finder?????
« Reply #21 on: September 13, 2017, 09:10:51 AM »
Fish Scaler rangefinder.  :salute: :bump:
Anyone actually did this?

Hooked, like everyone else. ;)

All hail the hook!

Small knives can do what big knives do, just slower.

My 30 day pen challenge! Pretty(?) Pictures inside:
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Hero Member Posts: 616 Observe - Evaluate - Control
Re: Range finder?????
« Reply #22 on: September 13, 2017, 09:52:22 AM »
Fish Scaler rangefinder.  :salute: :bump:
Anyone actually did this?
There is not much to "do", you just use the fishscaler to 'measure' the (angular) size of the object in question and do the calculation in your head.

Or, shameless plug: you use one of my low-tech distance meters without doing ANY calculation at all: https://store.wndsn.com/collections/navigation-tools

Sent from my ONEPLUS A3003 using Tapatalk

Zombie Apprentice Posts: 13,310 Hidalgo, Castillo del Hook
Re: Range finder?????
« Reply #23 on: September 13, 2017, 11:03:20 AM »
Fish Scaler rangefinder.  :salute: :bump:
Anyone actually did this?
There is not much to "do", you just use the fishscaler to 'measure' the (angular) size of the object in question and do the calculation in your head.

Or, shameless plug: you use one of my low-tech distance meters without doing ANY calculation at all: https://store.wndsn.com/collections/navigation-tools

Sent from my ONEPLUS A3003 using Tapatalk
I understand, but I meant has anyone used the fish scaler for this, as opposed to a calibrated stick or something?  :think:

Cool meters.  :cheers:

Hooked, like everyone else. ;)

All hail the hook!

Small knives can do what big knives do, just slower.

My 30 day pen challenge! Pretty(?) Pictures inside:
Official 30 Day Pen Challenge!
Absolutely No Life Club Posts: 6,122
Re: Range finder?????
« Reply #24 on: September 13, 2017, 11:37:49 AM »
Call it a Manscaler?

Sr. Member Posts: 426
Re: Range finder?????
« Reply #25 on: September 16, 2017, 06:05:25 PM »
With this use in mind, this tool should have been standard in the Huntsman model.
"Fish Scaler", aka sniper's rule.


Sent from my iPhone using Tapatalk
Hero Member Posts: 616 Observe - Evaluate - Control
Re: Range finder?????
« Reply #26 on: September 16, 2017, 07:04:25 PM »
With this use in mind, this tool should have been standard in the Huntsman model.
"Fish Scaler", aka sniper's rule.


Sent from my iPhone using Tapatalk
Certainly! Just a matter of what you call it. "Range Scaler" ;)

Sent from my ONEPLUS A3003 using Tapatalk

Sr. Member Posts: 426
Re: Range finder?????
« Reply #27 on: September 17, 2017, 01:22:43 AM »
With this use in mind, this tool should have been standard in the Huntsman model.
"Fish Scaler", aka sniper's rule.


Sent from my iPhone using Tapatalk
Certainly! Just a matter of what you call it. "Range Scaler" ;)

Sent from my ONEPLUS A3003 using Tapatalk
Indeed. It does seem like it would have been reasonable to include in the Huntsman. Of course,  for that matter, I'd like to see a retractable range finder/ruler in place of the corkscrew on the Huntsman--but that's just me.


Sent from my iPhone using Tapatalk
Sr. Member Posts: 324 Classic SD - SwissChamp
Re: Range finder?????
« Reply #28 on: September 19, 2017, 08:20:37 AM »
Nice, I'll try this tomorrow but with houses instead so it's more consistant and there is plenty all the same height.
Absolutely No Life Club Posts: 6,551
Re: Range finder?????
« Reply #29 on: September 19, 2017, 11:52:47 PM »
Here's something interesting.  The fish scaler has 8 serrations per 30mm, so each serration is about 3.75mm.  If you hold it at arm's length then - give or take a bit of arm length variation - it will be about 2ft or 600mm from your eye. 

With those two measurements you can work out the apparent angular size of each serration when held at arm's length:  3.75/600 ≈ 0.006 radians = 6 milliradians or mils.

A mil is a handy unit of angle measurement for range finding: it's the angular size of a 1 ft object at 1000ft (or a 1m object at 1000m etc).

So 6 mils is 6ft at 1000ft: therefore if a 6ft man matches the size of of 1 serration (6 mils), he is about 1000ft away.  2 serrations = 500ft, 4 serrations = 250ft, and so on.  (Assuming I've got my sums right!)

Maybe it will be clearer with an amateurishly photoshopped diagram:

Thanks for the information and diagram! :like:

 

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