H1MIN: OPTICAL RANGEFINDERS

Optical rangefinders were an essential tool in all forms of artillery.
This video explores the basic mechanics of how they work.

If you are interested in learning more, these links below provide fascinating insights. Courtesy to them for their valuable research and insights.

[ThatGuy-vwgc]

I had always wondered how these types of optical range finders worked, now I know. Thank you.

[EthanDyTioco]

THIS.

When I was learning trig in high school, I thought to myself, "man, i can probably learn the distance of things with trig manipulation." But I couldn't wrap my head around it, and I didn't have a lot of time to muse over it since I'd miss things in class, and also I other things captured my attention.

But man, it's satisfying to see that indeed, they used trig to do rangefinding back then

[bobbulat]

This is why you need to pay attention in trigonometry class in school

[jack]

I was a OM in the U.S. NAVY and we repaired these rangefinders, gunsights, bino"s and other optical equipment. It was the best rate in the Navy!

[timhouser]

If you make video THIS is how you do it.
1. It's short and to the point.
2. It does not have unnecessary, annoying music covering up the speaker's voice. He can be clearly heard.
3. It gets into the topic quickly.
4. It finishes without a plea to subscribe. (It respects its viewers.)
Oh, and thereby earns my subscription.
Well done.

[thefreedomguyuk]

Wow! Even a geek like myself will have to say "Never thought of that".
Surprisingly simple.

Great video !!

[walterCronkitesleftshoe]

Another excellent and concise video. These naval rangefinders were only part of the "hitting a moving target 9 miles away" apparatus. The range calulated from these rangefinders was then fed into a fire control computer which took in all the variables...Range to target....Own ship's course & speed.... Target ships course and speed, being the most obvious, but there were also MANY other variables which had to be taken into account, especially at longer ranges. These computers developed into HUGELY complex mechanical and then electro mechanical machines, which would then spit out the correct bearing (azimuth) and elevation angles for the guns.

Once a couple of "sighting shots" had been fired, the fall of those shots would then be observed (Left/right of target....Short or over) and corrections fed into the computer, until straddles & hits were obseved on the target.

[Cynthia_Cantrell]

I prefer to think of the geometry of range-finding for your gun as... "triggernometry."

[jatigre]

I found out that binoculars can do the same thing by moving the focus. It actually moves the depth of field

[TheTallOne]

This was a simple, short, informative, but well spoken video. You my friend have earned a new sub P.S really like your not overly enthusiastic/annoying voice, it's a refreshing break from all these other youtubers

[micro]

I literally never knew the mk 37 had people in them

[matasj]

Really good videos explaining interesting topics in military. Keep it up, you deserve a lot more views with videos like that!

[neilwilson]

This is the punk rock military history channel. The info is delivered very quickly and effectively.

[bukanmasmentri]

I knew it. Just like a 35mm film rangefinder camera focusing. Thanks for sharing.

[sheilaolfieway]

These videos are great short and straight to the point not like other videos that go on and on around a topic and only actually cover it at the end.

[kantyI]

I love this short videos, if you could make one about HEATFS like you did with the APFSDS it will be awesome
(#Subbed)

[fureversalty]

Another nice optical rangefinding method is called Stadiametric rangefinding, or just stadia (no, not Google). Lots of Soviet made sniper scopes and weapon systems had this, most notably in the PSO-1 scope. The way it works is by having a set height of your target known, say 1.7 meters for a person or 2.7 for armored targets, and through some clever trigonometry and math, a curve is drawn out according to the distance, often in increments of 100. If I missed anything please let me know

[elijamatt]

On Spot explanations. So much better than other "history" channels that use 2 mins to advertise pay to win egoshooters and then proceed to name every solider involved in the event because they read that one book. Thank you.

[tu-turbopropstrategicbom]

Very good! I would love to see a video on the Sidewinder and the old spin-scan seekers.

[MeThorvald]

Holy cow - didn't think the concept was that simple! Great video !