Tanks 102: Tank Components

[@davidterry3288]

Prior to a Rock Drill with the Division Commander I was walking some younger troops through it. Talking them through the maneuvers I said "the tank will go to this position and the tank will go bang!, then move to this position and the tank will go bang! I didn't know the Division Commander was walking behind me when he tapped me on the shoulder and told me I had it all wrong. He said, "Sergeant the tank will move to this position and the tank will go BOOM!" Two lessons learned that day. Tanks go BOOM not bang and when your troops seem unusually attentive check your six.

[@TheChieftainsHatch]

When doing some simulated dismount drills, instead of yelling “”bang” for rifle shots, we yell “pop”...

[@gvii]

That bit about the compensation for the fin stabilized rounds was really interesting. I never really thought about it, so I would have answered wrong. After hearing you explain it, it makes all the sense in the world. That was super cool, thank you. I really enjoyed that, along with everything else.

[@Laotzu.Goldbug]

A similar thing happens with an RPG, specifically with the PG-7V rocket, in that it ends up turning _into_ the wind. I think the mechanism is a little different, since there aren't really any substantial fins on the rocket I think it might have something to do with a lift force being produced when the air moves sideways across the round body. It tends to make an already inaccurate weapon even worse.

[@juliusEST]

@@Laotzu.Goldbug rpg rounds do have fins which extend once the rocket leaves the barrel, they run a substantial length of the narrow rocket part, thus very highly affected by wind.

[@whitephosphorus15]

It really doesn't make sense though, because there is no forward acceleration on the round once it leaves the gun tube. The round is not a rocket. Therefore, any yaw of the round should not have an effect of the direction of the velocity of the round, all forward force has already been applied. This phenomenon only makes sense when the projectile still has forward acceleration after being affected by the wind, such as an RPG rocket. I wonder if there is more to this explanation.

[@hjalmar4565]

@@whitephosphorus15 Maybe because you are wrong and you don't need a forward acceleration?

[@whitephosphorus15]

@@hjalmar4565 Maybe think about the physics before just saying I'm wrong. Ignoring air resistance, rotating an object while its traveling with 0 acceleration will not result in a change in the direction that object is traveling. So there has to be some other force acting on these shells other than what the Chieftain stated, or perhaps he got it wrong. No one is 100% right 100% of the time.

[@thedungeondelver]

What a cool video. However I am a tiny bit disappointed you didn't move one of the models going "vroom vroom".

[@therogueadmiral]

I feel like, with one of these vehicles, it wouldn't be "vroom vroom" but "roar, roar!"

[@SonsOfLorgar]

@@therogueadmiral only the sheman would roar, the M1 howls and post Vietnam war IFVs like the Bradley are generally far quieter than they have any right to be for their size... especially from the front! (Personal experience of beeing chased down by CV9040s and a CV90 ARV on several occations.... on foot. ) You feel them through the ground long before you hear them, and you can't ident the direction they come from by the feeling alone...

[@brianreddeman951]

He's more of using a light canon round as a pointer kind of guy 😅

[@HanSolo__]

@@brianreddeman951 It is very unprofessional if the presentation is followed with models or pictures pointed with a finger. BTW. Polish/Czech APC was called SKOT. While "S" stands for "Sredni" - a medium sized, it was one of the biggest if not the biggest APC of its time. OT-64 was a Czech name for it but both were in use in two countries. SKOT was was a very modern vehicle in the middle of '70s. Almost all (weak armor, weakly armed)of today's designing standards SKOT filled 50 years ago. Apart from the crew of 2 or 3 men, SKOT was able to take 10 soldiers onboard.

[@Tango4N]

"Female version of a codpiece or something...". I almost spit out my morning coffee and howled at that one! Best line in this one!

[@MilesStratton]

I would personally love to see some steel beasts content on the channel from your perspective. One of my favorite sims!

[@neraidozouzouno5919]

I agree!

[@anttihuhtala5840]

Same!

[@lioncat84]

Given that he works for Wargaming, I don't see him advertising another company's games.

[@lioncat84]

Never mind, he said he might have to. I stand corrected.

[@TacticalOni]

Ohay, its Miles!

[@Laotzu.Goldbug]

"I assume, being rifleman, they will just sleep in the mud." Cries in 0311*

[@johnharker7194]

If you're an 03, you have to sleep in the sand. Only 11Bs should get the privilege of mud.

[@CallanElliott]

It really does seem to be that a tank is best place to be on a battlefield...

[@Redchrome1]

One thing to keep in mind about muzzle brakes is that they are somewhat dependent on the mass of gas relative to the mass of the bullet. Putting a brake on a .38 Special (relatively small powder charge, low pressure, big bullet, especially in the original 200grain loading) would make little difference in recoil. Putting a brake on a 5.56x45 with the 55grain loading makes a much bigger difference because there's much more mass of gas (at higher pressure) to operate against the brake.

[@justin.s9783]

Drivers have it best far as where to sleep ( now days that is) in a Bradley you just pull a lever and the back rest drops . Use whatever to get it at the angle you want and sleep. To drive all you do is sit up, pull up the backrest , done. Good vid.

[@RichWhiteUM]

I wasn't a tanker but I may have fallen asleep once in the driver's seat of an Abrams...

[@qunt2742]

Outside the Chieftain's Hatch but it's how everyone sees him compared to the size of the tanks he reviews.

[@bigjulie3714]

Thank God you have dropped the rock music.. a tranquil presentation. Well done.

[@Halinspark]

Can you give us a watered down, wont get in trouble with the Army version of how armored operations work? How you go about going outside to do tank stuff, how doing tank stuff works, maintenance, resupply, going back for the next guys to go out and do tank stuff, etc. Aircraft get a mission, sortie, and then come home, but ships are out for months at a time doing things. I imagine tank stuff is somewhere in between the two?

[@Halinspark]

Basically, if you've ever said "I dont want to bore you with the details", Im curious to hear about it.

[@therogueadmiral]

@@Halinspark agreed.

[@p_serdiuk]

@@Halinspark Come on, just download some old Army field manuals. Basic tactics don't really change, older stuff is still applicable.

[@tmarcus309]

Call your local Guard unit and find out if your state has a Armored Battalion. Sign up and do a couple years and get first hand knowledge.

[@moosemaimer]

"Aircraft get a mission, sortie, and then come home, but ships are out for months at a time doing things." At one point the Air Force wanted nuclear-powered bombers that would orbit the North Atlantic for weeks on end. I imagine serving on one of those would be like a submarine crew, except with windows, but all you see is clouds and the ocean surface.

[@publiusscipio5697]

Nice 20mm pointer. Also thanks, I actually watched paint dry on your channel, new videos are always welcome.

[@williamt.sherman9841]

its a 30mm from the M230

[@madcourier6217]

BROTHER!!

[@justforever96]

That is obviously larger than a 20mm. Looks like a 30mm. A 20mm isnt that much bigger than a .50, and usually has a larger length/width ratio. That and the standard 20mm case in the west is 20x110mm which has a much longer case relative to the round. That thing is way too short and thick, and it has almost no neck.

[@fallout0624]

Proper lecture on a proper subject

[@jamesnigelkunjuro12]

That's a nice and educational way to show off your models :) thanks for another great vid. I agree - building scale models is a fun way to get more familiar with the different parts of a tank. I highly appreciate companies like Tamiya who take the time to label the parts in the construction manual. It's also a good excuse for me to look up both technical drawings and photos of the tank to make sure that all the details are there, and do a bit of research on the history of the vehicle and the experience of its crew. I always make it a point t learn something about the tank and its crews whenever I finish a model.

[@ditzydoo4378]

M1 bustle = Female cod-piece, Best line ever! That was hysterically brilliant. ~_^ As a retired SFC senior service school instructor I taught M1 Turret/Fire Control repair DS/GS at Vilseck, Germany 7th Army Training Command and USAOC&S APG Maryland. It never gets easier trying to explain the basics, great video.

[@ethanrowland3671]

yes, i love building scale tanks too. pretty awesome that you built and painted the "barley legal" abrams that you served in.

[@Snoggy_1_2]

Don't forget about the cold, wet infantry huddling around the rear of the Abrams soaking up the heat from the engines.

[@johnharker7194]

Only to receive concussions from the main gun being fired. Other than canister, the Abrams doesn't have a low pressure round. I think I heard something about the new multi fuse round being less terrible. You'd think after nearly a decade of insurgent warfare, we'd make some minor changes to actually make tanks useful.

[@Halinspark]

@@johnharker7194 I say we cover them in machine guns.

[@Edax_Royeaux]

Is that the Black Knight of Monty Python on the shelf there?

[@TheChainreaper]

he is a man of culture, as you can see

[@filippinoramb]

The alternative version of the challanger 2 xD

[@p7outdoors297]

Yep

[@Kharmazov]

Nex episode will include the Holy Handheld Anti-Tank Grenade Launcher of Antioch.

[@Edax_Royeaux]

@@Kharmazov I'm surprised the Beast of Caerbannog isn't an emblem yet.

[@Warump]

Grandpa remembers saving French soldiers with OT-64 who were stuck in some fire engagement in Kosovo (KFOR mission). There was a narrow, muddy road. Driver had to back up several hundred metres, because the risk getting stuck/fired at when turning around was high. They came in, loaded Frenchies and got away.

[@melangellatc1718]

Oh holy fuck!!! Old DS tanker here.... Presently working as an air traffic controller but not getting paid. Love you, brother,

[@tangoalpha8608]

As always, very informative and entertaining. Thank you very much.

[@the_real_ch3]

Maybe you could put a sign on the side that says "Not a tank please don't shoot"

[@TheChieftainsHatch]

In thirteen different languages. While i’m at it, I shall speak to a fashion designer about hats.

[@ET-Gamer]

Nice pointer you got there.

[@beaker126]

I like that you use a dummy 30mm cannon round as a pointer.

[@Riceball01]

I think that we need at least one video showing off The Chieftain's new house, or at least his office. It could be called "Inside the Chieftain's lair". We also need an Inside the Chieftain's Hatch video of your desk at your NG job. It's rare that people actually get to see the inner workings of an actual tactical military desk. :D

[@mikefurlong8025]

Chieftain - many thanks for addressing that question I put to you about the front / rear location of the drive sprocket over Christmas. I kept seeing vehicles with front sprockets during your quick museum tours and it was driving me nuts why they would do that from an engineering standpoint!

[@justforever96]

there are various reasons, but originally it was mostly because the transmission needs to be where the drive wheels are, and so do the steering brakes and/or differential. It is difficult to run clutch and shift and brake linkages all the way from the front to the back (part of why T-34 has terrible shifting and clutch feel). This is still a problem in cars with rear transaxles, and it is rare for these cars to have shift and clutch feel as good as conventional cars. The benefits outweigh this. When tanks went to automatic transmissions, hyrdaulic systems improved, and control diffs took over a lot of duties from the brakes, so it became much easier to put the drive system in the rear, so most tanks and AFVs do now.

[@Vberg]

Thank you very much. I found that genuinely fascinating. The bit about thermal shielding on the gun and how a bore evacuator works I found particularly interesting.

[@olebridger]

Love the old school knowledge drop just using the models for illustrative purposes. Definitely worth the watch for the tip that the wind pushes the finned sabot round up wind. Very cool!

[@Khalifrio]

Probably the most common question I get asked about tanks is how do you get power from the hull to the turret since the turret spins. I know they use a variation of a slip ring but explaing about powered rails and brushes tends to make peoples eyes cross. Maybe you could do a video and explain it better.

[@KevinSmith-ys3mh]

The Tank museum at Bovinton recent series "the Matilda Diaries" shows a teardown of the turret rotary joint with combined electrical & hydraulic layers, in the turret electrical systems video with clear explainer and excellent video work. A good, simple 1938 design example that's easily comprehensible. Probably better than nick could, due to pro editing team and their resources on hand. His commentary on the video with David Fletcher would be great tho, especially if linked to his own Matilda review some time ago.🙂

[@princeofcupspoc9073]

As a note, the hot trend in 1:35 military vehicles is 1000+ piece kits with FULL interior. That is, crew compartment, drive, engine, ammo, everything. So far I've seen Panther, JagdPanther, Tiger, T34, T60, M3 Lee/Grant, SU-122, SU-85, and probably others. Not for the faint of heart.

[@TheChieftainsHatch]

I can deal with that. It's the 500-piece track links which I find are over the top. Sorry, but I don't need to have each individual end connector and center guide modelled. If I wanted it, I'd buy aftermarket.

[@Autobotmech]

Thanks Chieftain , as always entertaining and very informative. I am always appreciative of the information you provide.

[@DeepPastry]

The 155mm gas extractor has spring operated check ball bearings on the rear holes.

[@AdamMann3D]

I started building armor models to learn about them. Great way to do so.

[@ishouldgetalif3]

3 people i could listen to all day: Gun Jesus, Mr Fletcher and Tank jesus.

[@dvdraymond]

Good stuff, thank you. "Bore evacuator" definitely sounds more technical than what I've always called it: "that weird tumor thing in the middle of the barrel"

[@tencents49]

This was posted on my burthday. Best present (for now)

[@tencents49]

Birthday*

[@walt_man]

Nice, good point on why parts go where and what they are, I'm building a pair of Tigers, so much tools!

[@orno0321]

A guy waving around bullet while talking about tank bits for almost half an hour? Hell yeah.

[@CallanElliott]

That's too big to be a bullet.

[@justforever96]

Not a a"bullet" it is a cannon round. There is no bullet in that object he is holding. A bullet is a solid projectile fired by small arms. It is the part of a cartridge that actually leaves the gun to fly to the target. A cartridge or 'round' is a bullet and propellant case and primer assembled in a unit (what ignorant people and the media call a "bullet"). That is a 30mm cannon cartridge, with a shell instead of a bullet, casing and primer. No bullets involved.

[@SonsOfLorgar]

But where is the TC's chainsword holder? ;)

[@SinOfAugust]

Worry not, brother. Emporah provides.

[@SonsOfLorgar]

@@SinOfAugust you are a funny guy... I will save the sacrifice of your soul to the gods for last ;)

[@SinOfAugust]

Ordo Hereticus services requested on isle six, please!

[@thedungeondelver]

Is that Heresy I hear? *checks* _Yes, someone is guilty of H E R E S Y_

[@MajesticDemonLord]

Drive closer brother - I need to hit them with my Chainsword

[@paultzacos7470]

Love the models.......very cool.

[@DC9622]

Enjoyable, for sight/gun alignment would you consider similarly detailing say Sherman and Pershing. Just read 740 tank battalions with mixed 76mm and 75mm Sherman after action report 1945, very sobering. “9th April 1945 At G178708 Lt. Loopey (3rd Plat) destroyed two 70-ton Jadtiger tanks w/128mm guns. At ,elschen Ennest the Pl4,t set up road blocks and remained for the night”. In February 1945 they claimed a Tiger 1 confirmed by the infantry support. Worth a read it does appear they alone destroyed 3 tiger vehicles.

[@wraith01mg]

Very useful. Especially about the fin round. Cheers.

[@andrewcox4386]

"None shall pass" - good to see you appreciate the classics 😉

[@buaidhnobas1ify]

So I like to hear these videos while browsing on another tab, then I heard how wind can affect the trajectory of a round. Cool.

[@rudolphantler6309]

Nice idea about a video! The first thing I noticed was it would have complemented the layout if you brought the vehicle models closer to the camera! Some questions: 1. Can a blast deflector and muzzle break both be present on the end of the same barrel? 2. Can a muzzle break's exhaust paths be directed upward to lessen the ground dust effect? 3. Which guns and tanks have so much recoil that a muzzle break becomes pointless? 4. Can flames from a blast deflector ignite surrounding materials?

[@aurorawhorealis]

Some answers: 1. Yes, one muzzle device can do/be both, it can both redirect gas and flash away from the ground/shooter/optics and reduce recoil, but not all do. 2. Yes and many do, you see this in small arms a lot because they have significantly less concussive force to deal with so it's easier, but a well designed one absolutely can on a tank too. 3. I'm not sure about this one, couldn't say a specific model it applies to, but I'm sure that there are instances of a big enough gun on a light enough tank that the reduction in recoil while still theoretically doing something, wouldn't be noticeable. I wouldn't say there's a hard line though, any well designed brake will reduce concussion by some amount, and any reduction will reduce vibration and wear on the gun/optics. 4. Not easily, definitely not gonna catch brush on fire or whatever. In regular small arms it's very unlikely, even with guns that have significant muzzle flash, a flammable gas or liquid isn't likely to light even. Mythbusters tried natural gas flooded into an enclosed space and guns wouldn't light it. Now a tank has a MUCH bigger flash, but I think unless there was large amounts of still burning powder exiting the barrel (which would not be normal or good) I don't think a tank cannon would be much different, just a lot bigger. Hope that helps. (disclaimer: I don't drive tanks for a living and only some of this is from first hand experience, the rest is internet research and semi-educated guesses lol)

[@rudolphantler6309]

Thanks for the answers! Although I'd still like to see Nicholas' responses on these. Nonetheless feel free to join in like you did so! I'm just interested in tank gun mechanics, not handheld firearms. A few more mysteries: 5. Can engine exhaust smoke be toggle redirected under the tank for further concealment? Is it worth it? Has it been done yet? Does it hinder amphibious designs? 6. How difficult is it to manufacture depleted uranium for countries to make special APFSDS and hard armor plating? What infrastructure is needed and any international laws? 7. Why aren't ATGM launchers ever mounted behind the chassis of the tank facing upwards in a 45 degree angle? Aiming for a starting launch then a forward facing cruise. 8. Are shot traps still relevant in this day and age on decently armored MBTs? Leo 2A5-2A7+ turret front looks rather trippy...

[@aurorawhorealis]

@@rudolphantler6309 You're welcome. Yeah my area of "expertise" is basically just small arms, my interest in tanks is purely for fun, but they do share a lot on the conceptual, design, optics, and physics side so sometimes I know what he's talking about lol. I got nothin' for your new questions lol, hopefully Chieftain can help!

[@aurorawhorealis]

@Kneon Knight Thanks for the insight, have no experience with BIG guns, I'll try to avoid that next time I take my howitzer to the range lol

[@rudolphantler6309]

Thanks for the insight Kneon. 4. What makes range control officers pissy? The vegetation ignition, the direct fire, or the rubber sheet shenanigans? 8. What about the Leo 2A5-2A7+? Are we looking at the same thing there? Why was it made this way? And a new question: 9. How common is direct fire with artillery? Is it done with the same muzzle velocity or power in today's time as indirect fire? What situation brings it about and why isn't it utilized more to build more common awareness of the action?

[@firefox5926]

24:30 also having the engine at the front means that anything that does make it thru the Armour at the front still has to get thru an engine block before it hurts you not great for the engine tho... :P

[@RJDKHS96]

Great vid as always, and glad to see that you’ve gotten your office together!

[@DarkStar14n]

My father was a Gvozdika driver. According to him in the winter they would shut off as much as they could, keep the radiator on and snuggle up like worms in their positions and laugh at the infantry outside. Similar story with the BMP-23 just that you could lie down and sleep in the relatively spacious "passenger" compartment.

[@sully4627]

I vaguely remember bore sighting the M109 back in my Army Guard days. Later I learned to color inside the lines, went active duty Air Force and flushed most of that artillery stuff out of my noggin'.

[@W1se0ldg33zer]

I had a friend in the motor pool - did Humvees over in Iraq. If they had an oil leak, they'd take one of the engine/drivetrain crates from the stack to the ceiling and replace the whole thing. Which was faster than fooling around with changing a valve cover gasket.

[@Colinpark]

I found the bit about the Fin ammo being aimed with the win, initially counter intuitive, but now it makes sense. Something new learned!

[@44R0Ndin]

I understood it immediately because model rockets behave identically, they always turn into the wind when you launch them, and then drift with the wind when the high-drag recovery device deploys (that's the parachute, streamer ribbon, helicopter blades, or whatever else makes the rocket not come down at high speed)

[@prjndigo]

There's a misunderstanding of "muzzle break" and "muzzle brake" and they're two different things. For example the D30 soviet has come with both, the earlier towed version had a "brake" which used a series of flutes to spray the muzzle flash back and to the sides and the export version had a brake version that directed a large proportion of the gasses simply TO the sides to reduce the length of the plume. In the case of artillery you want as little as possible of the BRIGHT FLAMING GASES shooting high into the air with each shot, a device that peels these gasses off is a *break* and will have as broad an opening on each side as possible with as small a final path hole as can be gotten away with. Muzzle brakes on the other hand are designed to keep the high velocity flow of gasses but turn and deflect them backwards, as seen on guns like the M230 30mm chain gun. The confusion is fun and simple. Same sound different words and different purposes. So people use the term "flash hider" instead for muzzle breaks. They don't actually hide the flash very well on small arms but they DO keep it from being a big long spew from a ball of light. Since the two purposes are often needed on larger caliber weapons we result with a great deal of confusion. But the true flash hiders are the cones on weapons like a Bofors 40mm or a DP28.

[@notrightmeow3357]

Great explanation and video.

[@tommyblackwell3760]

I was on first-gen Bradleys which were supposedly amphibious (we never tried), so they had a huge trimvane on the glacis. When it was fully extended as it would be to install the 25mm barrel or PMCS the powerpack it made a nice place to sleep, almost like a Lazy Boy recliner. Not quite as nice as the various spots on a 113, but good enough.

[@PNurmi]

The_Chieftain: Its Tritium (H-3), a radionuclide of hydrogen. Trituim also provides lumination in emergency exit signs.

[@Mishn0]

At least emergency exit signs that don't have batteries (like most of them do).

[@shooter2055]

--and the night glow of my handgun sights. ;-)

[@wwoods66]

@John Fulghieri-- DU is a lot less radioactive than NU, but U235 accounts for only a very small fraction of the radioactivity of natural uranium. The rest comes about equally from the U238 and its decay product, U234. The latter gets swept out during the enrichment process, along with the U235.

[@markbike5288]

Donald Palmrose is correct. Also found in an M1 Abrams is : Thorium oxide in combustor liner in the turbine engine. DU (Depleted Uranium) ammo M829 series DU APFSDS-T. DU in the armor of M1A1 "Heavies" and M1A2 , identified with a U at the end of the serial number. A thermal imaging window "may" contain thorium- not sure if this is specific to an Abrams though. Self-luminescent sights, dials gauges probably contain radioactive material. Source: Radiological Sources of Potential Exposure and/or Contamination TG-238 U.S. Army Center for Health Promotion and Preventive Medicine 10 December, 1999

[@FirstMetalHamster]

Ah, PzH2k. Served on that fucker for 5 years. Wonderful vehicle. And you're right about that being a velocity measuring tool on top of the barrel.

[@F1ghteR41]

About a third of the video is about things Soviet and derivative tanks don't have. Now I understand the choice of models for this demonstration.

[@alanhays3033]

Muzzle reference sensor is not the only radioactive part of the tank....the depleted uranium plates they added to the Chobham armor are also radioactive (mildly).

[@yankeelongshoreman9113]

@Mathieu Morin Depleted just means that almost all the fissionable U-235 has been processed out. However, it still emits alpha radiation; which can be blocked by a sheet of A4 letter paper.

[@TheAngelobarker]

Can't wait for 201

[@MrMe11on]

Yeah those sensors on the Panzerhaubitze are measuring the velocity of the rounds, a way of knowing if the rounds will hit short or far. That measurement is called "v0" in swedish, no idea if its the same in english or not. // Soldier in the Swedish artillery.

[@ghostdiv7sion194]

Having a shell as a pointer is bad ass! wish my maths teacher was that cool.

[@speed150mph]

I loved the talk about sleeping on the Bradley when you have dismounts. I’d be hated by my infantry if I was a Bradley commander. I would literally tell my dismounts “bitch please, this is my vehicle, you just ride in it. You are the poor bastard who got the infantry duty, you can pitch your tent out there and sleep in the dirt 🤣”

[@panzerabwerkanone]

You had me at Sprockets. "Now is the time on Sprockets when we dance"!

[@olawiaczek1]

It is indeed the OT-64, more precisely the OT-64 SKOT with SKOT being either Střední Kolový Obrněný Transportér or Średni Kołowy Opancerzony Transporter, which means medium wheeled armoured transporter.

[@mcmoose64]

Thanks for explaining wind effect on finned rounds.

[@TastingwithTonyShow]

The models were a great way to illustrate the video. If you had an inset with the vehicle full frame it would work even better!

[@briandamage5677]

Great points! And pointer.

[@Demothones]

I was an 11B but my understanding is that a key purpose of the bustle rack was to provide a handhold for the crew to use lest they have to suffer the indignity of dismounting in order to do “class I download.”

[@TheChieftainsHatch]

That is another use for it, yes. Not authorised during exercises, though, only combat ops.

[@Demothones]

The_Chieftain Well you say that but I have been to NTC as a lightfighter and while all the mech guys are at the wash rack at the end of rotation the light fighters are out doing police call. Most what we picked up was out in the valleys where no lightfighter ever thought of going. We know what you guys left out there for us to clean up and we did not appreciate it.

[@brianreddeman951]

Quite a few of us had hopes of you make tank noises while moving those models around.

[@dimitre316]

Not called a stern because it isn't. Like most military ideas, it's very straight forward. Stern comes from stjorn which means "steering" in Norse. It would be confusing if you called it a stern without a stern (stiarne Frisian spelling meaning "rudder"). Like I said, very simple reason why a tank has no stern, because it has tracks.

[@baastex]

As the power pack is in the back for most modern tanks would you not say the steering is done on the back like a rudder ?

[@whitephosphorus15]

@@baastex At this point the nomenclature is not going to change anyway, but theres two things wrong with that. First, of course not all tanks or "not" tanks have the power in the back. Second, the steering is done by the tracks, not the power pack. Consider how a rudder steers compared to how a sail or boiler powers.

[@dimitre316]

@@baastex notice how a rudder isn't a propeller. We're not talking engines or propulsion, but the thing that contacts the medium for steering. On a car, that would be the tires, not the engine, on a tank it's the tracks, not the engine, only on a boat can it be the engine if mounted on the stern. There is no configuration where the steering is done from a specific location that can universally be called "steering" and nothing on a tank remotely comes close to a rudder. It's why a tank has a driver not a pilot, there is no rudder to be piloted or a helm for a helmsman. You're not guiding a tank, you're steering it. Or at least your commander hopes to fuck you are not asking the tank if it is willing to maybe go a place at some point in the near future.

[@baastex]

1st Steering is done by the transmission sending either more power to 1 track or the other or just removing power on 1 side or even heck send the track into reverse the track only carries the tank and transmit the rotary force of the engine into the ground as liniar force. This is the same as a rudder shifting the force from the propellor to one side or the other as that is how a powered ship steers by guiding the propulsion 2nd Most large ships these days don't even have a rudder anymore as the forces of the ships side would snap the rudder... these use turnable propellers (forgot the name Ships aint my bread and butter) that bypass the need of a rudder as they guide the force already into the correct direction 3rd Seriously saying that the tracks are the thing that steer a tank makes as mutch sense as saying water steers a ship... I understand the name will not change I only said a argument could be made...

[@dimitre316]

@@baastex 1. No, the transmission doesn't do that. The differential does that. And like I said, in this case the word is referring directly to the thing in contact with the medium used for steering on, I.e. air, water, dirt, pavement, so on. 2. Modern ships didn't exist in 1945. 3. I didn't say tracks are exclusively used for steering, but they are what steers a tank. When you move the controls the tracks being in contact with the ground is what's important here. Yes, everything else needs to be there to send the driver's command, but the tracks are doing the job of steering. If a track breaks on a moving tank, the other is going to steer the tank. Forget it, if you haven't got it by now, you don't want to get it. 4. Bonus round. "Rear" and "back" are fine. Those words work wonders. Any sighted soldier can immediately tell where the back of the tank is. Wonderful for training. Yes an engine can be a stern, but a track can never be a rudder.

[@johnfisk811]

'Glacis' is from military engineering and pronounced 'gla-see'. Pronounced thus being a French word. BTW sabot is French for shoe (made of wood) and is pronounced 'sabb-oh' not 'say-boh'. Thus you get 'sabotage' from cross French workers protesting by throwing their wooden shoes into their machinery. Infantry don't like muzzle brakes or blast deflectors on 'friendly' tanks as the blast gets directed to do unpleasant things to the PBI either directly with blast or by bouncing the local scenery off them. There are few pecetime character building moments to match approaching a stationary 70 ton mobile thing which can instantly begin moving at you backwards and does not know you are there until you have actually opened and licked up the exterior telephone and got the warm dry sleepy/busy inhabitants to acknowledge they have friendly human almost touching their tracks.

[@1_2_die2]

The Black Knight on the shelf is the perfect bonnet onament for a tank =) "just a flesh wound"

[@davidbell5528]

Finally I know they difference between the btr and the ot64 (and its not just a warsaw pact clone!)

[@douglasmaccullagh1267]

Chieftain, I really enjoyed this. My fascination with enclosed tracked vehicles, not just tanks, is vision and the drive train (suspension, steering, and engine cooling mainly). I have encountered the term "panoramic periscope" but I do not really understand what the term means. I am fascinated by the different steering technologies used, the various suspension systems used at different times by different countries, and just what constitutes "weak" vs "strong" track. I hope future lectures might get into some of these details?

[@emjar87]

SKOT is Czechoslovakian, but we used to use it in Poland. Rather got poor reputacion, because it was used by goverment of PRL during military state in 80's. Yep, due to covid-19 situation I have a lot of time to watch missed videos ;)

[@filippinoramb]

When you use that shell for that small presentation, what caliber are you going to use in a big lecture?

[@tmarcus309]

Did I just hear a Ballistic Meteorology class in the middle of the video? I did! And I just thought the Red Legs was only ones who knew that. I guess tankers learned it too! Man I miss Field Artillery.

[@SonsOfLorgar]

Heh! I did my compulsory service training as a radio specialist in a 120mm mortar platoon of a mechanised batallion, and if there is one unit especially dependant on accurate meterology, it's the batallion level heavy mortars...

[@ScottKenny1978]

Snipers, too.

[@GreenAppelPie]

It’s interesting to think how long it took to get some design rules down like: put the engine in its own compartment, put ammo in its own compartment, evacuate the smoke from gun after firing, thermally balance the gun, etc etc.

[@williamt.sherman9841]

remember that many of these issues only got solved when they became a problem. before ww2 most tank guns were small and did not produce a lot of propellent smoke and that even in ww2 most tank engagements were at short ranges.

[@basher20]

The cold calculus is that at least one man died or was injured for every design improvement to a tank design during wartime.

[@nightfury8440]

@@basher20 I would bet it's more than 1, a lot more than 1

[@Reepicheep-1]

Very good detail and explanations. Zoomed way too far out for using a model that small. You and model are

[@jamesripley6712]

Lots of great info , hopefully it won't be another 2 years till we can view Tanks 103

[@Palora01]

Sadly while the Chieftain always talks about track tension WG is putting their hands in their ears and going "LaLaLaLa I can't hear you, tensionless tracks look kool" (tvp vtu is just one example)

[@gamingsentry6000]

Nice black knight figure among your models

[@boredsights3923]

Thank you for the video. I always learn something new here. Take care! :D

[@tomhutchins7495]

The description of aiming off away from the wind intrigues me. I've been competing at national and international level in archery for over 15 years, and we too use a fin-stabilised projectile. But we have to aim into the wind, sometimes by 1m or more over a 70m shot. You can see the arrow in flight, and the tail definitely gets pushed, but there isn't a subsequent "lift" back into the wind. I suspect it has to do with the extreme speed and mass of a sabot round, but if anyone has further information that would be very welcome.

[@TheChieftainsHatch]

Interesting. There are folks commenting elsewhere in this section that RPGs also have to aim with the wind rather than into it, so it’s more than just speed, at least.

[@nhancao4790]

It could be the strength/elasticity of the projectile. Arrows are flexible and won’t be affected by the crosswind pushing against the fin as much as a rigid sabot round.

[@tomhutchins7495]

This is clearly bugging me. I found this (www.aircav.com/cobra/ballistic.html) where 3.C.(3) states the effect you described for a rocket under acceleration. Which makes sense, because you have something propelling it at its new angle of attack. Since this (and every other source I can find) states such effects cease when the motor is turned off, I'm guessing that the fins and penetrator body are creating lift against the wind.

[@tomhutchins7495]

Interesting thought, and indeed when you watch high speed footage of arrows (check out the Werner Beiter stuff like kzbin.info/www/bejne/rXixpJ-Lg6ele68) you can see this in action.

[@TheChieftainsHatch]

That first link seems to indicate that it's a component of the launching platform's characteristics, and the bit you are referencing is launching when the helicopter out of trim. (i.e. it both requires additional, uneven control inputs, and is moving at a cross path to the wind), possibly because the wind will affect different parts of the rocket at different times as it leaves both the tube and the downdraft of the blades. At the very end of the paragraph, it simply states that if the aircraft is in trim, to aim with the wind, as the rocket will turn into it with no additional qualifications.

[@scrubsrc4084]

One of my uni lecturers studied the ballistic effect of surface finish of rounds, they think about it an awful lot!

[@RussianThunderrr]

Awesome thank you for great video. I wish you would elaborate a little more on advantages vs disadvantages of FWD("Front Wheel Drive" rear engine aka Renault 17 configuration) tanks vs RWD pluses and minuses. As for the future video there is a lots of debates of having turret basket vs not, as well as when "Gunner TC override" feature happen(I would think end of WWII) an inside on those subjects would be great. BTW, love that "Black Knight" on the shelf! And thank you, once again.

[@Electronzap]

Really enjoy the models. Zooming in more would be nice :)

[@mrs9935]

16:20 this actually blew mind a little. Something simple but I've never thought about.

[@WarWithIn]

Same like rpg-7

[@CathFawr]

The Warrior has an attached tent.. porch thing for the dismounts, driver sleeps in their seat and the turret crew sleep on the back seats.

[@VonRammsteyn]

Awesome! And very nice models, by the way... Sadly, you can forget keep building them once your child is born...

[@witeshade]

After seeing and hearing about all the measurements and data they use to make sure the guns will hit their targets, it makes it all the more amazing to think that tankers back in ww2 could actually hit anything with their guns.

[@SonsOfLorgar]

They bore sighted often and learned the specific behaviour of their own barrel by heart, also, they used rifled guns and no fins on their ammo

[@DCHZS]

great video... chieftain is the kind of TC that yells out "obscuration" after every round fired...

[@TheChieftainsHatch]

Range games... sorry.

[@tmarcus309]

@@TheChieftainsHatch I bet the VCE Loooooved your tank during table 6

[@TheChieftainsHatch]

Once they figured out I don’t say things like “move out”

[@TheDLVProject]

Hey Nick! Did you ever meet Ian McCallum when you went to RIA for that Stuart and Swedish Bofars

[@ReformedSooner24]

Second

[@TheChieftainsHatch]

I did not.

[@ReformedSooner24]

Wow. I said “second” and he changed his entire comment...

[@TheDLVProject]

@@ReformedSooner24 I realized I didn't really care about that I just wanted him to answer my question

[@ReformedSooner24]

Robert De La Vega Don’t worry it’s not like its a big deal. I don’t actually care that much.

[@paitrynpait9664]

WOT best advertiser. everytime I see his videos i want to play...then i'm reminded why I stopped playing.

[@gregoryheim9781]

LoLoL "The female version of a codpiece." LOVE this guys sense of humor.

[@andrewwaterman9240]

Since you're such a skilled modeler, you should make a scale model of what you imagine the perfect tank museum would look like. It would be great for those tanks which no longer exist or aren't easily accessible. You could even make a scale version of yourself and film all your videos in miniature. Just a thought.

[@vanguardactual1]

Great video as usual! Thanks again!

[@BrewBlaster]

The power-pack thing makes perfect sense. Yank the whole thing out, put in a hopefully fully operational unit and repair the removed power-pack quickly to be ready for the next needed vehicle.

[@44R0Ndin]

I'm an auto mechanic, and I'd give up a lot of things to have cars that were that easy to service. Sure you'd need an engine hoist to change the oil, but I've already got one of those (and so do most good mechanics). Even if you don't have a ready-to-go power pack to get the troubled car back in operation within the same day, you'd still have a far sight better access to everything and wouldn't have to remove 50 pounds of plastic ducting and noise baffles every time you wanna change something like the alternator, spark plugs, or serpentine belt.

[@andrewlee-do3rf]

19:58 The other problem with muzzle brakes is that it also forces you to wear better ear protection. In addition to that, muzzle brakes make a larger muzzle blast that can hurt/annoy accompanying infantry. Also....."apparently" the larger blast from the muzzle brake tends to damage any sensitive equipment (like the optics maybe......but I am not quite sure about that) mounted on the tank

[@coaxill4059]

it all depends on the precise structure of the brake. Its construction shapes precisely how much gas is focused through a certain channel, at a certain pressure, in a certain direction. There are advantages and disadvantages to each. Ultimately it's not possible to redirect that pressurized gas without a risk that it will hit something, though there are ways to minimize it's potential for damaging the things you care about, in a given scenario. Ultimately it's no surprise then that when possible, we tend to prefer disregarding all that, and just go with a clean muzzle instead.

[@1337flite]

Thanks love your work. Be really good to hear you speak about basic TTPs, e.g. commanders appreciation, fire orders, wine glassing/jockeying ( not sure about the US nomenclature for this stuff but guessing you’ll get what I mean) and the like I.e. the basic low level, stuff the crew does to get the tank into favourable fre positions and steel on target.